Dry-type / Air Cooled Power Transformers
Last Updated: April 1, 2025
Description
Dry-type or air-cooled power transformers are electrical devices used to transfer electrical energy between two or more circuits through electromagnetic induction. These transformers do not use any liquid for cooling; instead, they rely on air to dissipate heat. The coils in dry-type transformers are separated by air, and the transformer's enclosure is ventilated to allow airflow, which helps in cooling the windings.
Working Principle
Dry-type transformers operate on the principle of electromagnetic induction, where electrical energy is transferred between circuits through a magnetic field. The primary and secondary coils are magnetically linked but not electrically connected. When alternating current flows through the primary coil, it creates a varying magnetic field, which induces a voltage in the secondary coil. This process allows the transformer to step up or step down voltage levels as needed. Dry-type transformers are particularly useful because they do not require oil for cooling, reducing the risk of fire hazards and environmental contamination.
Applications
Dry-type transformers are commonly used in environments where fire safety is a concern, such as in buildings, underground substations, and offshore platforms. They are also used in industrial applications where oil-filled transformers pose a risk of contamination. Specific examples include use in hospitals, schools, and commercial buildings where safety and environmental considerations are paramount.
Advantages over other Power Transformers
Dry-type transformers offer several advantages over oil-filled transformers. They eliminate the risk of oil leaks and associated environmental hazards. Additionally, they are more fire-resistant, making them suitable for indoor installations where safety is a priority. The absence of oil also reduces maintenance requirements and costs associated with oil handling and disposal.
Limitations
One limitation of dry-type transformers is their lower power rating compared to oil-filled transformers. Historically, their rating was limited to less than 1 MVA, although advancements in technology have increased this to 20 MVA. However, they may still not be suitable for very high-power applications. Additionally, dry-type transformers can be more expensive initially due to the materials and construction techniques used to ensure adequate cooling and insulation.
Considerations
When considering dry-type transformers, it is important to evaluate the initial costs, which can be higher than oil-filled transformers. However, the operating expenses may be lower due to reduced maintenance needs and the absence of oil handling. Dry-type transformers are durable and offer high reliability, but their efficiency can be slightly lower than oil-filled transformers, which may affect long-term operating costs. Replacement and maintenance costs are generally lower, as there is no need for oil testing or replacement.
from Coilcraft, Inc.
Designed for active clamp forward topology. Operates at 200 kHz with 36 – 72 V input. Provides 0.229 mm clearance above the seating plane. AEC-Q200 qualified [See More]
- Cooling Method: Air
- Construction: Toroidal Core; Ferrite
- Transformer Type: Isolation
- Operating Temperature: -40 to 125
from Shenzhen Xingkerong Technology Co., Ltd
Home // All Collections // Transformer // 380V 480V 420V 440V Manufacturer Direct Hot Selling Three Phase Dry Type Voltage Transformer [See More]
- Cooling Method: Air; Natural cooling
- Output Voltage: 600
- Input Voltage: 600
- Operating Temperature: -20 to 45
from Coilcraft, Inc.
Coilcraft ’s 1812TRX Ethernet isolation transformer features a fully automated construction, not only reducing cost but also increasing reliability. Its compact surface mount package measures just 4.7 x 3.31 x 3.1 mm, significantly smaller than traditional hand wound toroidal transformers. The... [See More]
- Cooling Method: Air
- Construction: Toroidal Core; Ferrite
- Transformer Type: Isolation
- Operating Temperature: -40 to 125
from Shenzhen Xingkerong Technology Co., Ltd
Home // All Collections // Transformer // 500KVA 630KVA 3 Phase MV &HV transformers Dry Power Step Down Transformer 380V 415V 400V 440V to 380V 415V 400V 250KVA 600KVA 800KVA 1000KVA [See More]
- Cooling Method: Air; Fan cooling Natural cooling
- Output Voltage: 600
- Input Voltage: 600
- Secondary Current Rating: 7 to 157
from Coilcraft, Inc.
Developed for Texas Instruments LM5070 PoE Interface. IEEE 802.3af compliant for 3 W PoE applications. Industry standard EP7 surface mount package. Three different output current and voltages. Designed to operate in continuous mode at 250 kHz with input voltage of 36 – 72 Vdc [See More]
- Cooling Method: Air
- Construction: Toroidal Core; Ferrite
- Transformer Type: Isolation
- Operating Temperature: -40 to 85
from Shenzhen Xingkerong Technology Co., Ltd
Home // All Collections // Transformer // 500KVA 800KVA 750 KVA 630KVA 400KVA Dry Transformer 400KW Step up Down Transformer 380V 400V 415V 440V to 380V 400V 440V 415V [See More]
- Cooling Method: Air; Fan cooling Natural cooling
- Output Voltage: 600
- Input Voltage: 600
- Operating Temperature: -20 to 45
from Coilcraft, Inc.
Developed for Texas Instruments LM5070 PoE Interface. IEEE 802.3af compliant for 7 W PoE applications. Industry standard EP10 surface mount package. Three different output current and voltages. Designed to operate in continuous mode at 250 kHz with input voltage of 36 – 72 Vdc [See More]
- Cooling Method: Air
- Construction: Toroidal Core; Ferrite
- Transformer Type: Isolation
- Operating Temperature: -40 to 85
from Shenzhen Xingkerong Technology Co., Ltd
Home // All Collections // Transformer // 800v 400v transformer [See More]
- Cooling Method: Air; Fan cooling Natural cooling
- Input Voltage: 600
- Transformer Type: Isolation
- Output Voltage: 600
from Coilcraft, Inc.
For flyback regulator applications using the Texas Instruments LM5000 Regulator. Recommended and approved by Texas Instruments [See More]
- Cooling Method: Air
- Construction: Toroidal Core; Ferrite
- Transformer Type: Isolation
- Operating Temperature: -40 to 85
from Shenzhen Xingkerong Technology Co., Ltd
Home // All Collections // Transformer // Copper 200KVA 3 Phase Dry Type Transformer Price 3phase 200 KVA 200KW [See More]
- Cooling Method: Air; Fan cooling Natural cooling
- Output Voltage: 600
- Input Voltage: 600
- Secondary Current Rating: 1049 to 1313
from Coilcraft, Inc.
Can be used with Linear Technology LT1725 Flyback Controller. Suitable for use in PoE applications. Ideal for use in telecommunications isolated converters and isolated power supplies. Six 1:1 windings [See More]
- Cooling Method: Air
- Construction: Toroidal Core; Ferrite
- Transformer Type: Isolation
- Operating Temperature: -40 to 125
from Shenzhen Xingkerong Technology Co., Ltd
Home // All Collections // Transformer // IEC NEC Dry Type Isolation Power Transformer Price Dry-type Single or Three Phase Transformer [See More]
- Cooling Method: Air; Fan cooling Natural cooling
- Input Voltage: 600
- Transformer Type: Isolation
- Output Voltage: 600
from Coilcraft, Inc.
Planar Transformer optimized for PoE DC/DC Powered Device (PD) resonant forward converters. Designed to meet IEEE802.3bt standard. Perfect solution for high power PoE applications up to 100 W. Optimized for 200 kHz to 350 kHz with 42.5 – 57 V input. 1500 Vrms, 1 minute isolation (hipot)... [See More]
- Cooling Method: Air
- Construction: Toroidal Core; Ferrite
- Transformer Type: Isolation
- Operating Temperature: -40 to 125
from Shenzhen Xingkerong Technology Co., Ltd
Home // All Collections // Transformer // Power Transformer Manufacturers 3KVA 10KVA 30KVA 50KVA Dry Type Variable Step Down up 3 Phase Low Voltage Transformer [See More]
- Cooling Method: Air; Fan cooling Natural cooling
- Output Voltage: 600
- Input Voltage: 600
- Secondary Current Rating: 7 to 1312
from Coilcraft, Inc.
Optimized for use with On Semiconductor NCP1030 power converter. Interleaved primary and secondary windings for low leakage inductance. Ideal for 48 V telecom power supply and Power Over Ethernet (PoE) applications [See More]
- Cooling Method: Air
- Construction: Toroidal Core; Ferrite
- Transformer Type: Isolation
- Operating Temperature: -40 to 85
from Shenzhen Xingkerong Technology Co., Ltd
Home // All Collections // Transformer // Three Phase Dry Voltages Transformaor 15KVA 10KVA 30KVA 50KVA Step up Transformer 220v to 380v 3 Phase Porwer Price [See More]
- Cooling Method: Air; Fan cooling Natural cooling
- Output Voltage: 600
- Input Voltage: 600
- Secondary Current Rating: 7 to 209
from Coilcraft, Inc.
Specially developed for use with the Texas Instruments UCC3580 PWM Controllers. Low profile, high efficiency planar transformer. Planar output choke inductor [See More]
- Cooling Method: Air
- Construction: Toroidal Core; Ferrite
- Transformer Type: Isolation
- Operating Temperature: -40 to 85
from Shenzhen Xingkerong Technology Co., Ltd
Home // All Collections // Transformer // Three Phase Dry Voltages Transformaor 3KVA 7KVA 15KVA 10KVA 30KVA 50KVA Step up Down Transformer 220v to 380v 3 Phase Porwer Price [See More]
- Cooling Method: Air; Fan cooling Natural cooling
- Output Voltage: 600
- Input Voltage: 600
- Secondary Current Rating: 7 to 157
from Coilcraft, Inc.
Developed for TI LM5020 PWM Controller. Can be used in PoE applications. 1 MHz operating frequency. Low profile, surface mount [See More]
- Cooling Method: Air
- Construction: Toroidal Core; Ferrite
- Transformer Type: Isolation
- Operating Temperature: -40 to 85
from Shenzhen Xingkerong Technology Co., Ltd
Home // All Collections // Transformer // UL Certified Dry Step up down Isolation Transformer 480V 277V 240V 208V 120V 110V With UL Certification [See More]
- Cooling Method: Air; Fan cooling Natural cooling
- Input Voltage: 600
- Transformer Type: Isolation
- Output Voltage: 600
from Coilcraft, Inc.
Transformers // Power-Transformers // Power-Converter-Transformers // C0972 // B0754-AL [See More]
- Cooling Method: Air
- Standards / Compliance: RoHS
- Operating Temperature: -40 to 85
from Shenzhen Xingkerong Technology Co., Ltd
Home // All Collections // Transformer // UL Transformer 1000 KVA Dry Type Distribution Transformer- 208V Delta Primary - 480Y/277 wye-N Secondary - NEMA 1 [See More]
- Cooling Method: Air; Fan cooling Natural cooling
- Output Voltage: 600
- Input Voltage: 600
- Secondary Current Rating: 7 to 157
from Coilcraft, Inc.
Developed for Maxim MAX5941B PoE Interface/PWM Controller. IEEE 802.3af compliant PoE forward converter applications. Low profile, surface mount transformer. 275 kHz switching frequency at a 50% duty cycle [See More]
- Cooling Method: Air
- Construction: Toroidal Core; Ferrite
- Transformer Type: Isolation
- Operating Temperature: -40 to 85
from Coilcraft, Inc.
Developed for the TI LM5070 PD Interface in 13 W applications. Operates at frequencies up to 1 MHz. RoHS-compliant 260 °C compatible. Tin-silver-copper over tin over nickel over phos bronze terminations [See More]
- Cooling Method: Air
- Construction: Toroidal Core; Ferrite
- Transformer Type: Isolation
- Operating Temperature: -40 to 85
from Coilcraft, Inc.
Developed for Linear LT1725 Isolated Flyback Controller. Can be used in isolated and non-isolated designs and in PoE applications. Interleaved secondary windings. RoHS-compliant. 260 °C compatible. Tin-silver (96.5/3.5) over tin over nickel over phos bronze terminations. [See More]
- Cooling Method: Air
- Construction: Toroidal Core; Ferrite
- Transformer Type: Isolation
- Operating Temperature: 40 to 125
from Coilcraft, Inc.
Developed for Maxim MAX5941A PoE Interface/PWM Controller. Interleaved primary and secondary windings. RoHS-compliant. 260 °C compatible. Tin-silver over tin over nickel over phos bronze terminations [See More]
- Cooling Method: Air
- Construction: Toroidal Core; Ferrite
- Transformer Type: Isolation
- Operating Temperature: 40 to 125
from Coilcraft, Inc.
Developed for Maxim MAX5941A PoE Interface/PWM Controller [See More]
- Cooling Method: Air
- Construction: Toroidal Core; Ferrite
- Transformer Type: Isolation
- Operating Temperature: -40 to 125
from Coilcraft, Inc.
Developed for TI TPS23750 PoE PD controller (PMP929 reference design). Isolated, synchronous flyback transformers for IEEE 802.3af PoE applications [See More]
- Cooling Method: Air
- Construction: Toroidal Core; Ferrite
- Transformer Type: Isolation
- Operating Temperature: -40 to 125
from Coilcraft, Inc.
Developed for TI TPS23750 PoE PD controller (PMP717 reference design). Designed for discontinuous mode in isolated, non-synchronous power supplies. [See More]
- Cooling Method: Air
- Construction: Toroidal Core; Ferrite
- Transformer Type: Isolation
- Operating Temperature: -40 to 125
from Coilcraft, Inc.
Senses current up to 20 Amps. Designed for up to 1 MHz and above. Eight different turns ratios to meet variety of requirements. Two pin-out configurations for different applications. AEC-Q200 Grade 1 ( −40 °C to +125 °C). Two samples of each value are available in Coilcraft... [See More]
- Cooling Method: Air
- Construction: Toroidal Core; Ferrite
- Transformer Type: Isolation
- Operating Temperature: -40 to 125
from Coilcraft, Inc.
Sensed current up to 28 Amps. Designed for use up to 1 MHz and above. Very low primary resistance. AEC-Q200 Grade 1 ( −40 °C to +125 °C). UL Class 180 (H) insulating materials, UL 1446 Class F (155 °C) Insulation System (UL File E83628 CC-5D marking). Bobbin plastic UL 94-V0,... [See More]
- Cooling Method: Air
- Construction: Toroidal Core; Ferrite
- Transformer Type: Isolation
- Operating Temperature: -40 to 125
from Coilcraft, Inc.
Sensed current up to 47 Amps. Designed for use up to 1 MHz and above. Very low primary DC resistance. AEC-Q200 Grade 1 ( −40 °C to +125 °C). Need parts for space, military or other critical applications?. See Coilcraft ST629TCB Series [See More]
- Cooling Method: Air
- Construction: Toroidal Core; Ferrite
- Transformer Type: Isolation
- Operating Temperature: -40 to 125
from Coilcraft, Inc.
High isolation voltage CST2010 current sense transformer. Sensed current up to 40 A. Designed for use up to 1 MHz and above. 2100 Vrms, one minute isolation (hipot) between windings. AEC-Q200 qualified. Designed to comply with IEC61558-1, IEC62369-1, and IEC60664-1 for providing Reinforced or Basic... [See More]
- Cooling Method: Air
- Construction: Toroidal Core; Ferrite
- Transformer Type: Isolation
- Operating Temperature: -40 to 125
from Coilcraft, Inc.
Designed for use up to 1 MHz and above. Sensed current is 80 A and higher. Very low primary resistance. 5000 Vrms, one minute isolation (hipot) between windings. Designed to meet reinforced insulation, at least 8 mm creepage/clearance. AEC-Q200 qualified [See More]
- Cooling Method: Air
- Construction: Toroidal Core; Ferrite
- Transformer Type: Isolation
- Operating Temperature: -40 to 125
from Coilcraft, Inc.
Sensed current up to 20 Amps. Designed for use up to 1 MHz and above. Very low primary resistance. AEC-Q200 qualified. Designed for: Continuous AC current monitoring in switched-mode power supply. Overload and short-circuit protection. Current measurement in traction motor and battery management... [See More]
- Cooling Method: Air
- Construction: Toroidal Core; Ferrite
- Transformer Type: Isolation
- Operating Temperature: -40 to 125
from Coilcraft, Inc.
The CSX7030 series is a high-isolation, low-loss current sensing transformer designed for high-performance power electronics and automotive applications. It features a small chip-style package with an ultra-low 3.3 mm profile and is manufactured using a highly automated process to ensure consistent... [See More]
- Cooling Method: Air
- Construction: Toroidal Core; Ferrite
- Transformer Type: Isolation
- Operating Temperature: -40 to 125
from Acme Electric Corp. / Power Distribution Products
The transformers in the section are autotransformers designed to change a wide range of voltages to the standard motor voltages for domestic appliances, air conditioners and related equipment. Correcting high or low supply voltage conditions to match the voltage requirements of appliances and... [See More]
- Cooling Method: Air
- Primary Frequency: 50 / 60 Hz
- Transformer Type: Power Transformer
- Input Voltage: 200 to 240
from Schneider Electric
From medium voltage switchgear and arc resistant equipment to energy automation, we deliver specific solutions for data centers, commercial and industrial buildings, water/wastewater, healthcare, utilities, oil and gas, and mining, covering all power distribution needs for energy management. [See More]
- Cooling Method: Air; Oil
- Mounting: Chassis; Pad-Mounted
- Transformer Type: Buck-Boost Transformers; Encapsulated Transformers; Industrial Control Transformer; Isolation; Power Transformer; Single Phase Transformer; Substation Transformer; Three Phase Transformers
- Input Voltage: 230 to 69000
from Amp-Line Corp.
High Frequency Transformer: Primary Voltage: 25 V rms., Secondary Voltage: 5000 V rms., Ouptut Power: 1000 watts; Frequency Range: 100 Hz - 600 Hz. Custom specifications can be achived upon request. [See More]
- Cooling Method: Air
- Mounting: Stand Alone Unit/Metal Cabinet
- Transformer Type: Electronics; High Voltage Transformer; Power Transformer; Single Phase Transformer
- Input Voltage: 0.0 to 25
from Coilcraft CPS
This low profile flyback transformer is designed for applications such as Subscriber Line Interface Circuits (SLICs), cable and DSL modems and set top boxes. [See More]
- Cooling Method: Air
- Mounting: PCB/SMD
- Transformer Type: Flyback Transformer (FBT); Power Transformer
- Input Voltage: 9 to 20
from Premier Magnetics, Inc.
Designed for use with Power Intergrations Inc. LED Driver LNKSwitch-PH and LYTSwitch Controller Families. Designed to meet UL/IEC 60950 Safety Standards. Designed to meet Class B insulation. Multiple configurations. Design Engineering Support Available. GENERAL APPLICATION INFORMATION APPLICATION... [See More]
- Cooling Method: Air
- Input Voltage: 90 to 265
- Mounting: PCB/SMD
- Output Voltage: 18
from GE Grid Solutions
Transformers. GE offers a wide range of transformer solutions for the utility, industrial, commercial, residential, and energy markets. These products & solutions feature flexible, reliable, and robust designs to support a wide range of applications. With units operating in some of the most... [See More]
- Cooling Method: Air; Oil
- Mounting: Chassis; Pad-Mounted; Pole Mounted
- Transformer Type: Autotransformer; Encapsulated Coil Transformer; Distribution Transformer; High Voltage Transformer; Power Transformer; Rectifier Transformer; Substation Transformer
from SOCOMEC
Safety transformers enable the creation of an Isolated voltage, while ensuring both the protection of auxiliary equipment from electrical interferences and the safety of people. Advantages Configurable voltages. Safety transformers can either be supplied in 230 V or 400 V. They provide 2 voltage... [See More]
- Cooling Method: Air
- Mounting: DIN-rail
- Transformer Type: Solar Power Transformer
- Input Voltage: 230 to 400
from Dynapower Corporation
Dynapower is pleased to offer the ULTRACAST line of cast coil transformers, designed for applications that demand high reliability and continuous performance. Developed in the United States, the ULTRACAST process locks the windings in a very strong, high dielectric, epoxy resin, thus protecting the... [See More]
- Cooling Method: Air
- Power Rating (VA): 300000 to 1.00E7
- Transformer Type: Encapsulated Coil Transformer; Distribution Transformer
- Standards / Compliance: UL
from Hengda Electronic Factory
The machine is used in the production of cold rolled silicon steel, mass production and 100% inspection. Transformer vacuum coating, automatic baking, moisture-proof anti-rust, beautiful appearance. The terminal can be used to facilitate customer use. We have certificates such as UL, CE, RoHS, CESI,... [See More]
- Cooling Method: Air
- Mounting: Chassis
- Transformer Type: Electronics
- Input Voltage: 220
from Neeltran, Inc.
Neeltran designs and manufactures its own rectifier-transformers and rectifiers in the same facility. This ability allows us to understand harmonics and losses very well. It also gives our designers the experience to design a high quality custom unit. [See More]
- Cooling Method: Air
- Input Voltage: 34000
- Transformer Type: Rectifier Transformer
- Output Voltage: 1500
from Acme Electric Corp. / Power Distribution Products
Buck-Boost Transformers are small single phase transformers designed to reduce (buck) or raise (boost) line voltage from 5-20%. The most common example is boosting 208 volts to 230 volts, usually to operate a 230 volt motor such as an air-conditioner compressor, from a 208 volt supply line. [See More]
- Cooling Method: Air
- Primary Frequency: 60 Hz
- Transformer Type: Buck-Boost Transformers; Power Transformer
- Input Voltage: 120 to 240
from Amp-Line Corp.
High Frequency Transformer: Primary Voltage: 25 V rms., Secondary Voltage: 150 V rms., Ouptut Power: 250 watts; Frequency Range: 100 Hz - 5000 Hz. Custom specifications can be achived upon request. [See More]
- Cooling Method: Air
- Mounting: Stand Alone Unit/Metal Cabinet
- Transformer Type: Electronics; Power Transformer; Single Phase Transformer
- Input Voltage: 0.0 to 25
from Coilcraft CPS
Designed for input range of 10 – 14 V. 1500 Vrms isolation from primary and bias to secondary; 500 Vrms isolation from primary to bias, tested for one minute. The bias winding provides power to the chipset [See More]
- Cooling Method: Air
- Mounting: PCB/SMD
- Transformer Type: Flyback Transformer (FBT); Power Transformer
- Input Voltage: 10 to 14
from SOCOMEC
bull; The PTI provides automatic shortcircuiting of the CT : if the measuring circuit is opened. • BTV 25 products are voltage transformers. They are used specifically for supplying measurement equipment, therefore it is not recommended to connect other components. which could affect accuracy. [See More]
- Cooling Method: Air
- Mounting: DIN-rail or Back-plate
- Transformer Type: Solar Power Transformer
- Construction: Toroidal Core (optional feature)
from Dynapower Corporation
Dynapower is pleased to offer our line of open wound dry type transformers. Developed in the United States for our internal use as the heart of our rectifier products, these transformers are designed for long and reliable service life in rugged industrial applications. Designed to be cooled using... [See More]
- Cooling Method: Air
- Features: NEMA Enclosure (optional feature)
- Power Rating (VA): 10000 to 1.00E7
from Acme Electric Corp. / Power Distribution Products
All Acme Drive Isolation Transformers (DITs) above 7.5kVA are wound with strip windings to ensure the lowest possible eddy current losses. All our DITs use a three leg wound core. This superior design has very low losses and quiet operation. Both of these features combine to significantly reduce... [See More]
- Cooling Method: Air
- Mounting: Pad-Mounted
- Transformer Type: Isolation; Power Transformer
- Input Voltage: 460
from Amp-Line Corp.
High Frequency Transformer: Primary Voltage: 25 V rms., Secondary Voltage: 300 V rms., Ouptut Power: 350 watts; Frequency Range: 100 Hz - 5000 Hz. Custom specifications can be achived upon request. [See More]
- Cooling Method: Air
- Mounting: Stand Alone Unit/Metal Cabinet
- Transformer Type: Electronics; Power Transformer; Single Phase Transformer
- Input Voltage: 0.0 to 25
from Coilcraft CPS
Designed to meet 30 W PoE IEEE 802.3at-2009 standard. Operates at 250 kHz with 36 – 7 2 Volts input. Isolation: 1500 Vrms pri to sec; 500 Vrms pri to [See More]
- Cooling Method: Air
- Mounting: PCB/SMD
- Transformer Type: Flyback Transformer (FBT); Power Transformer
- Input Voltage: 36 to 72
from Acme Electric Corp. / Power Distribution Products
The Acme Electric AE and CE Series Industrial Control Transformers are designed specifically for machine tool control circuit applications. These transformers have the ability to handle potentially damaging high in-rush currents that occur when electromagnetic components are energized, without... [See More]
- Cooling Method: Air
- Mounting: Chassis
- Transformer Type: Encapsulated Transformers; Industrial Control Transformer; Power Transformer
- Primary Frequency: 50 / 60 Hz
from Coilcraft CPS
Flyback transformers for 13 W PoE applications. Designed to operate in continuous mode at 250 kHz with an input of 36 – 72 Vdc. 1500 Vrms isolation from primary and bias to secondary [See More]
- Cooling Method: Air
- Mounting: PCB/SMD
- Transformer Type: Flyback Transformer (FBT); Power Transformer
- Input Voltage: 36 to 57
from Acme Electric Corp. / Power Distribution Products
Acme's single phase transformers are design for use in industrial and commercial application. Transformers rated up to 25 kVA are enclosed within an encapsulated, NEMA 3R enclosures. Standard transformers rated from 37.5 to 250 kVA are enclosed in ventilated, NEMA 2 enclosures (optional... [See More]
- Cooling Method: Air
- Primary Frequency: 60 Hz
- Transformer Type: Power Transformer; Single Phase Transformer
- Input Voltage: 240 to 480
from Coilcraft CPS
Designed for the LT3573 Isolated Flyback Converter. 1500 Vrms isolation from primary and bias to secondary; 500 Vrms isolation from primary to bias, tested for one minute. The bias winding provides power to the chipset [See More]
- Cooling Method: Air
- Mounting: PCB/SMD
- Transformer Type: Flyback Transformer (FBT); Power Transformer
- Input Voltage: 20 to 28
from Acme Electric Corp. / Power Distribution Products
Acme ’s low voltage distribution transformers are designed for industrial and commercial applications. All of Acme ’s general purpose transformers are rated for 600 volts and below. Encapsulated units are offered in ratings up to 15kVA. Ventilated units are available in ratings up to... [See More]
- Cooling Method: Air
- Mounting: Pad-Mounted
- Transformer Type: Autotransformer; Power Transformer; Three Phase Transformers
- Primary Frequency: 60 Hz; 50 / 60 Hz
from Coilcraft CPS
Flyback transformer for the Linear Technology LT3751 Capacitor Charger Controller. 5 – 24 V input; 5 V, 3.6 A and ±15 V, 1.2A outputs. 1500 Vrms, one minute isolation from primary to secondary windings [See More]
- Cooling Method: Air
- Mounting: PCB/SMD
- Transformer Type: Flyback Transformer (FBT); Power Transformer
- Input Voltage: 5 to 24
from Acme Electric Corp. / Power Distribution Products
The Acme Finger/Guard line of Touch-Protected Industrial Control Transformers offers the most advanced and versatile design concepts available to the marketplace today. They are designed to meet Acme's rigid standards for mechanical durability as well as surpass Agency and Industry electric... [See More]
- Cooling Method: Air
- Mounting: Chassis
- Transformer Type: Industrial Control Transformer; Power Transformer
- Primary Frequency: 50 / 60 Hz
from Coilcraft CPS
Designed for PWM Dimming of High-Brightness LEDs. Shown on Maxim MAX16801 demonstration board. Bias winding output: 18 V, 20 mA. 400 V input; 110 V, 0.4 A output. 1500 Vrms, one minute primary and bias to secondary isolation [See More]
- Cooling Method: Air
- Mounting: PCB/SMD
- Transformer Type: Flyback Transformer (FBT); Power Transformer
- Input Voltage: 400
from Acme Electric Corp. / Power Distribution Products
Many of today's electronic devices are non-linear loads generating high levels of harmonic currents that are then fed back onto your distribution system. This waveform distortion results in overheating of motors and transformers, increased neutral currents and malfuntion/damage to other equipment on... [See More]
- Cooling Method: Air
- Mounting: Pad-Mounted
- Transformer Type: Power Transformer
- Input Voltage: 480
from Coilcraft CPS
Developed specifically for Microchip Technology ’s Isolated AC LED driver to operate with PIC16HV785 CMOS Microcontroller and MCP1402 Gate Driver. Universal ac input; 20 V, 0.7 A output; Operates at 125 kHz. 3000 Vrms, one minute isolation from the primary and bias to the secondary winding. [See More]
- Cooling Method: Air
- Mounting: PCB/SMD
- Transformer Type: Flyback Transformer (FBT); Power Transformer
- Input Voltage: 85 to 265
from Acme Electric Corp. / Power Distribution Products
Some specifications require installation of large control transformers, usually 1000 to 5000 VA outside of the control cabinet. This means the transformer must be in a sheet metal enclosure instead of the usual open core and coil construction method. Acme meets this need by providing all of the... [See More]
- Cooling Method: Air
- Primary Frequency: 50 / 60 Hz
- Transformer Type: Power Transformer
- Input Voltage: 240 to 480
from Coilcraft CPS
Developed for the National Semiconductor LM5001 High Voltage Switch Mode regulator for isolated and non-isolated flyback topologies. Output of the auxiliary winding is 7.5 V used to power the IC. 1500 Vrms, one minute isolation from the primary and auxiliary winding to the secondary [See More]
- Cooling Method: Air
- Mounting: PCB/SMD
- Transformer Type: Flyback Transformer (FBT); Power Transformer
- Input Voltage: 14 to 72
from Acme Electric Corp. / Power Distribution Products
Amce's Low Voltage Lighting products provide a safe, long lasting, highly reliable power source; a perfect selection for landscape applications as well as interior use. Low voltage lighting is a creative medium with unlimited application possibilities. [See More]
- Cooling Method: Air
- Primary Frequency: 60 Hz
- Transformer Type: Power Transformer
- Input Voltage: 120
from Coilcraft CPS
Designed to operate in continuous mode at 250 kHz. NSC App Note AN ‑1430 specifies 84% efficiency at 3 A. 1500 Vrms, one minute isolation from primary and aux to secondary [See More]
- Cooling Method: Air
- Mounting: PCB/SMD
- Transformer Type: Flyback Transformer (FBT); Power Transformer
- Input Voltage: 24 to 60
from Acme Electric Corp. / Power Distribution Products
Non-linear loads generate high levels of harmonic currents. When supplying power to these loads, a special transformer design is necessary. Typical non-linear loads include desktop computers, AC variable speed drives, HID lighting, electronic ballasts, inverters and welders. Of these non-linear... [See More]
- Cooling Method: Air
- Mounting: Pad-Mounted
- Transformer Type: Isolation; Power Transformer
- Primary Frequency: 60 Hz
from Coilcraft CPS
Designed for 25 Watt PoE application. Input range from 18 to 57 V. Primary to secondary isolation: 1500 Vrms. Auxiliary winding output: 11 V, 20 mA [See More]
- Cooling Method: Air
- Mounting: PCB/SMD
- Transformer Type: Flyback Transformer (FBT); Power Transformer
- Input Voltage: 18 to 57
from Acme Electric Corp. / Power Distribution Products
Acme's TA and TB series are dry-type step-down transformers with an open core and coil design. These units are designed specifically for industrial control applications where the energizing of electromagnetic components creates high in-rush current that must be accommodated without sacrificing the... [See More]
- Cooling Method: Air
- Mounting: Chassis
- Transformer Type: Industrial Control Transformer; Power Transformer
- Primary Frequency: 50 / 60 Hz
from Coilcraft CPS
The DA2077-AL flyback transformer has been specifically developed for use with ON Semiconductor ’s NCP1027 Standby Power Supply for ATX Applications and is speci - fied in Application Note AND8241/D. This transformer is designed for universal input, 85 – 265 Vac. It operates in... [See More]
- Cooling Method: Air
- Mounting: PCB/SMD
- Transformer Type: Flyback Transformer (FBT); Power Transformer
- Input Voltage: 85 to 265
from Acme Electric Corp. / Power Distribution Products
Acme Powerwise C3 Transformers are 30% better performing in efficiency than standard TP1 transformers. Thanks to a more efficient core and higher-grade electrical steel that minimizes losses, these energy-efficient units even exceed the requirements of the US Department of Energy Candidate Standard... [See More]
- Cooling Method: Air
- Mounting: Pad-Mounted
- Transformer Type: Power Transformer; Three Phase Transformers
- Primary Frequency: 60 Hz
from Coilcraft CPS
Dual-output flyback transformer for ON Semiconductor ’s NCP1351 Variable Off Time PWM Controller. 32 V, 1.0 A and 16 V, 0.75 A Outputs. Output of the auxiliary winding is 16 V. Operates in discontinuous mode with a universal input. 3000 Vrms, one minute isolation Pri and Aux to Sec1 and Sec2. [See More]
- Cooling Method: Air
- Mounting: PCB/SMD
- Transformer Type: Flyback Transformer (FBT); Power Transformer
- Input Voltage: 85 to 265
from Coilcraft CPS
Designed for 90 Watt applications. Operates in discontinuous conduction mode with an input of 85 – 265 Vac, 1.28 Arms maximum. 3000 Vrms isolation from primary and auxiliary to secondary [See More]
- Cooling Method: Air
- Mounting: PCB/SMD
- Transformer Type: Flyback Transformer (FBT); Power Transformer
- Input Voltage: 85 to 265
from Coilcraft CPS
Developed for the ST Micro STL3075 and STL3085 Integrated POTS interfaces for home access gateway and WLL. Provides negative voltage ( – 46 V typical) to operate the microchip [See More]
- Cooling Method: Air
- Mounting: PCB/SMD
- Transformer Type: Flyback Transformer (FBT); Power Transformer
- Input Voltage: 4.5 to 8.5
from Coilcraft CPS
Flyback transformer for 50 Watt dc-to-dc fixed frequency current mode switching power supplies. Designed to operate with 22 – 26 V input at 150 kHz. 1500 Vrms, one minute isolation from primary to secondary [See More]
- Cooling Method: Air
- Mounting: PCB/SMD
- Transformer Type: Flyback Transformer (FBT); Power Transformer
- Input Voltage: 22 to 26
from Coilcraft CPS
Triple-output flyback transformer. Designed to operate at 50 kHz with universal ac input. 3000 Vrms, one minute isolation from primary and bias to secondaries [See More]
- Cooling Method: Air
- Mounting: PCB/SMD
- Transformer Type: Flyback Transformer (FBT); Power Transformer
- Input Voltage: 85 to 265
from Coilcraft CPS
Specified by Texas Instruments for use in the Bias Power Supply for their UCD3K Digital Power Controller. Universal input; 5 Watt output. 3000 Vrms, one minute isolation Pri and P1 to S1 and Sense; 500 Vrms, one minute isolation windings to core. Designed to meet UL/CSA/IEC 60950 Reinforced... [See More]
- Cooling Method: Air
- Mounting: PCB/SMD
- Transformer Type: Flyback Transformer (FBT); Power Transformer
- Input Voltage: 85 to 265
from Coilcraft CPS
Specified by Texas Instruments in Reference Design SLUU341 for 300 Watt Isolated PFC Power Supply. HA3950-AL, Flyback transformer (T201) for 5 W bias supply; HA3858-AL, Gate drive transformer (T301). Isolation: 3000 Vrms primary to secondary; 500 Vrms windings to core [See More]
- Cooling Method: Air
- Mounting: PCB/SMD
- Transformer Type: Flyback Transformer (FBT); Power Transformer
- Input Voltage: 85 to 265
from Coilcraft CPS
These surface mount flyback transformers were devel - oped specifically for the ST Microelectronics STE12PS 12-Channel PSE Power Control Device. They are designed to work with a 3.3 V input to provide a 12 V output. Isolation is 500 Vdc from each primary wind - ing to the secondary winding. [See More]
- Cooling Method: Air
- Mounting: PCB/SMD
- Transformer Type: Flyback Transformer (FBT); Power Transformer
- Input Voltage: 3.3