Through Hole Technology (THT) Board Mount Transformers

Last Updated: January 16, 2025 Reviewed by: Jon Lowy, consulting engineer

Description

Through Hole Technology (THT) Board Mount Transformers are electrical components designed to transfer electrical energy between two or more circuits through electromagnetic induction. These transformers are mounted on printed circuit boards (PCBs) using through-hole mounting techniques, which involve inserting component leads into pre-drilled holes on the PCB and soldering them in place. THT transformers are known for their robust mechanical connections and are typically used in environments where durability and reliability are paramount.

Working Principle

THT Board Mount Transformers operate on the principle of electromagnetic induction. They consist of primary and secondary windings wrapped around a magnetic core. When an alternating current (AC) flows through the primary winding, it creates a magnetic field that induces a voltage in the secondary winding. This process allows the transformer to step up or step down voltage levels, making it useful for adapting power supply voltages to the needs of various electronic devices. The magnetic core enhances the efficiency of this energy transfer by concentrating the magnetic field, reducing energy loss.

Applications

THT Board Mount Transformers are widely used in a variety of applications. In consumer electronics, they are often found in power supplies for devices such as televisions and audio equipment. In industrial settings, they are used in control systems and automation equipment to ensure that different components receive the correct voltage levels. Additionally, they are employed in telecommunications equipment to manage signal levels and in medical devices where precise voltage regulation is critical for safe operation.

Advantages over other Board Mount Transformers

One of the primary advantages of THT Board Mount Transformers is their mechanical strength. The through-hole mounting technique provides a more secure connection to the PCB compared to surface-mount technology (SMT), making them ideal for applications subject to mechanical stress or vibration. This robustness is particularly beneficial in automotive and aerospace applications where reliability is crucial. Furthermore, THT transformers often have higher power handling capabilities than their SMT counterparts, making them suitable for high-power applications.

Limitations

Despite their advantages, THT Board Mount Transformers have some limitations. They typically require more space on the PCB due to their larger size and the need for drilled holes, which can be a drawback in compact electronic designs. Additionally, the manual soldering process involved in through-hole mounting can be more labor-intensive and time-consuming compared to automated SMT processes, potentially increasing production costs. The larger size and weight of THT transformers can also be a disadvantage in applications where weight and space are critical factors.

Considerations

When selecting THT Board Mount Transformers, several factors should be considered. Initial costs can be higher due to the manual assembly process, but their durability often results in lower long-term maintenance expenses. Operating expenses are generally low, as these transformers are designed for high efficiency and reliability. However, their larger size may impact the overall design and cost of the PCB. Durability is a significant advantage, as the robust construction of THT transformers ensures a long service life even in demanding environments. Accuracy in voltage transformation is typically high, but designers should ensure that the transformer specifications match the application's requirements to avoid performance issues. Replacement and maintenance costs are generally low, but accessibility for repairs should be considered in the PCB layout to facilitate easy servicing.

68 Results
SWB Wideband RF Transformers -- SWB1010-1-PC SWB1010-1-PCL
from Coilcraft, Inc.

Surface Mount and Through Hole versions. 500 Vrms, one minute interwinding isolation (hipot). 250 mA max current rating; 1/4 Watt RF input power. For a smaller package size, see our PWB Series [See More]

  • Package Type: Surface Mount; Through Hole Plug-in
  • Operating Temperature: -40 to 85
  • Transformer Type: RF
  • Standards: RoHS
Cost optimized pulse transformer for THT mounting, up to 2W -- IX
from SCHURTER Inc

Description. High insulation rating ( >2.2 kVAC) between the primary and the secondary windings. Small coupling capacitances between primary and secondary windings limit transient feedback from the power supply side to the control electronics. Cost optimized design. The defined partial discharge... [See More]

  • Package Type: Through Hole Plug-in
  • Input Voltage: 500
  • Transformer Type: Pulse Transformers
  • Operating Temperature: -25 to 70
Audio Transformers -- 102H-ND [102H from Hammond Manufacturing Company Inc.]
from DigiKey

2k Impedance Primary Ohms 500CT Impedance Secondary Ohms Audio Transformer 310Hz Through Hole [See More]

  • Package Type: Connectorized; Through Hole Plug-in
  • Power Rating (Watts): 0.0200
  • Transformer Type: Audio
WB Surface Mount Wideband RF Transformers -- WB1-1SL WB1-1SLD
from Coilcraft, Inc.

For a smaller package size see WBC Series). Also available in a through hole version. Available in a variety of impedance ratios. Tapped or untapped configurations. 250 mA max current rating, 1/4 Watt RF input power rating. 500 Vrms, one minute isolation (hipot), primary to secondary. Custom... [See More]

  • Package Type: Surface Mount; Through Hole Plug-in
  • Operating Temperature: -40 to 85
  • Transformer Type: RF
  • Standards: RoHS
Cost optimized pulse transformers for THT mounting -- IL
from SCHURTER Inc

Description. High insulation rating ( >2.2 kVAC) between the primary and the secondary windings. Small coupling capacitances between primary and secondary windings limit transient feedback from the power supply side to the control electronics. Cost optimized design. The defined partial discharge... [See More]

  • Package Type: Through Hole Plug-in
  • Input Voltage: 500
  • Transformer Type: Pulse Transformers
  • Operating Temperature: -25 to 70
Audio Transformers -- 104KHM-ND [104K from Hammond Manufacturing Company Inc.]
from DigiKey

20k Impedance Primary Ohms 1kCT Impedance Secondary Ohms Audio Transformer 200Hz Through Hole [See More]

  • Package Type: Connectorized; Through Hole Plug-in
  • Power Rating (Watts): 0.0350
  • Transformer Type: Audio
WB Through Hole Wideband RF Transformers -- WB1-1L
from Coilcraft, Inc.

Also available in a surface mount version. Available in a variety of impedance ratios. Tapped or untapped configurations. 250 mA max current rating, 1/4 Watt RF input power rating. 500 Vrms, one minute isolation (hipot), primary to secondary. Custom versions available [See More]

  • Package Type: Surface Mount; Through Hole Plug-in
  • Operating Temperature: -40 to 85
  • Transformer Type: RF
  • Standards: RoHS
Cost optimized pulse transformers for THT mounting, short rise time -- ILR
from SCHURTER Inc

Description. High insulation rating ( >2.2 kVAC) between the primary and the secondary windings. Small coupling capacitances between primary and secondary windings limit transient feedback from the power supply side to the control electronics. Cost optimized design. The defined partial discharge... [See More]

  • Package Type: Through Hole Plug-in
  • Input Voltage: 500
  • Transformer Type: Pulse Transformers
  • Operating Temperature: -25 to 70
Audio Transformers -- 106G-ND [106G from Hammond Manufacturing Company Inc.]
from DigiKey

4k Impedance Primary Ohms 600CT Impedance Secondary Ohms Audio Transformer 215Hz Through Hole [See More]

  • Package Type: Connectorized; Through Hole Plug-in
  • Power Rating (Watts): 0.1500
  • Transformer Type: Audio
WB Wideband RF Transformers -- WB1010-1-PC WB1010-1-PCL
from Coilcraft, Inc.

Surface mount and through hole versions. 500 V interwinding isolation, 1/4 Watt RF input power. 250 mA max current rating. For a smaller package size, see our PWB Series [See More]

  • Package Type: Surface Mount; Through Hole Plug-in
  • Operating Temperature: -40 to 85
  • Transformer Type: RF
  • Standards: RoHS
Pulse transformers for THT mounting -- IT
from SCHURTER Inc

Description. High insulation rating ( >3.2 kVAC) between the primary and the secondary windings. High insulation rating up to 500V between the secondary windings. Small coupling capacitances between primary and secondary windings limit transient feedback from the power supply side to the control... [See More]

  • Package Type: Through Hole Plug-in
  • Input Voltage: 600
  • Transformer Type: Pulse Transformers
  • Operating Temperature: -25 to 100
Audio Transformers -- 141F-ND [141F from Hammond Manufacturing Company Inc.]
from DigiKey

25kCT Impedance Primary Ohms 50CT Impedance Secondary Ohms Audio Transformer 200Hz ~ 15kHz Through Hole [See More]

  • Package Type: Connectorized; Through Hole Plug-in
  • Power Rating (Watts): 0.1000
  • Transformer Type: Audio
Audio Transformers -- 149E-ND [149E from Hammond Manufacturing Company Inc.]
from DigiKey

300 Impedance Primary Ohms 120, 30/30 Impedance Secondary Ohms Audio Transformer 200Hz ~ 15kHz Through Hole [See More]

  • Package Type: Connectorized; Through Hole Plug-in
  • Power Rating (Watts): 0.2000
  • Transformer Type: Audio
Audio Transformers -- 164-142A-ND [142A from Hammond Manufacturing Company Inc.]
from DigiKey

AUDIO XFMR 10KCT / 10KCT TH [See More]

  • Package Type: Connectorized; Through Hole Plug-in
  • Power Rating (Watts): 0.1000
  • Transformer Type: Audio
  • Operating Temperature: -40 to 85
Audio Transformers -- 164-142B-ND [142B from Hammond Manufacturing Company Inc.]
from DigiKey

AUDIO XFMR 10KCT / 2KCT TH [See More]

  • Package Type: Connectorized; Through Hole Plug-in
  • Power Rating (Watts): 0.1000
  • Transformer Type: Audio
  • Operating Temperature: -40 to 85
Audio Transformers -- 164-142C-ND [142C from Hammond Manufacturing Company Inc.]
from DigiKey

AUDIO XFMR 15KCT / 15KCT TH [See More]

  • Package Type: Connectorized; Through Hole Plug-in
  • Power Rating (Watts): 0.1000
  • Transformer Type: Audio
  • Operating Temperature: -40 to 85
Audio Transformers -- 164-142D-ND [142D from Hammond Manufacturing Company Inc.]
from DigiKey

AUDIO XFMR 600CT / 600CT TH [See More]

  • Package Type: Connectorized; Through Hole Plug-in
  • Power Rating (Watts): 0.1000
  • Transformer Type: Audio
  • Operating Temperature: -40 to 85
Audio Transformers -- 1650KP-ND [1650KP from Hammond Manufacturing Company Inc.]
from DigiKey

3.4kCT Impedance Primary Ohms 4, 8, 16 Impedance Secondary Ohms Audio Transformer 30Hz ~ 30kHz Through Hole [See More]

  • Package Type: Connectorized; Through Hole Plug-in
  • Power Rating (Watts): 50
  • Transformer Type: Audio
Audio Transformers -- 237-1118-ND [TY-141P from Triad Magnetics]
from DigiKey

10kCT Impedance Primary Ohms 10kCT Impedance Secondary Ohms 1:1 Audio Transformer 200Hz ~ 15kHz Through Hole [See More]

  • Package Type: Connectorized; Through Hole Plug-in
  • Power Rating (Watts): 0.1000
  • Transformer Type: Audio
  • Operating Temperature: -20 to 85
Audio Transformers -- 237-1119-ND [TY-142P from Triad Magnetics]
from DigiKey

10kCT Impedance Primary Ohms 2kCT Impedance Secondary Ohms 2.24:1 Audio Transformer 200Hz ~ 15kHz Through Hole [See More]

  • Package Type: Connectorized; Through Hole Plug-in
  • Power Rating (Watts): 0.1000
  • Transformer Type: Audio
  • Operating Temperature: -20 to 85
Audio Transformers -- 237-1120-ND [TY-144P from Triad Magnetics]
from DigiKey

15kCT Impedance Primary Ohms 15kCT Impedance Secondary Ohms 1:1 Audio Transformer 200Hz ~ 15kHz Through Hole [See More]

  • Package Type: Connectorized; Through Hole Plug-in
  • Power Rating (Watts): 0.1000
  • Transformer Type: Audio
  • Operating Temperature: -20 to 85
Audio Transformers -- 237-1121-ND [TY-145P from Triad Magnetics]
from DigiKey

600CT Impedance Primary Ohms 600CT Impedance Secondary Ohms 1:1 Audio Transformer 200Hz ~ 15kHz Through Hole [See More]

  • Package Type: Connectorized; Through Hole Plug-in
  • Power Rating (Watts): 0.1000
  • Transformer Type: Audio
  • Operating Temperature: -20 to 85
Audio Transformers -- 237-1123-ND [TY-300P from Triad Magnetics]
from DigiKey

600 Impedance Primary Ohms 600/600 Impedance Secondary Ohms 1:2.48 Audio Transformer 300Hz ~ 3.5kHz Through Hole [See More]

  • Package Type: Connectorized; Through Hole Plug-in
  • Operating Temperature: -20 to 85
  • Transformer Type: Audio
Audio Transformers -- 237-1124-ND [TY-301P from Triad Magnetics]
from DigiKey

600 Impedance Primary Ohms 900 Impedance Secondary Ohms 1:1.27 Audio Transformer 300Hz ~ 3.5kHz Through Hole [See More]

  • Package Type: Connectorized; Through Hole Plug-in
  • Operating Temperature: -20 to 85
  • Transformer Type: Audio
Audio Transformers -- 237-1125-ND [TY-302P from Triad Magnetics]
from DigiKey

600 Impedance Primary Ohms 600/600 Impedance Secondary Ohms 1:1.47 Audio Transformer 300Hz ~ 3.5kHz Through Hole [See More]

  • Package Type: Connectorized; Through Hole Plug-in
  • Operating Temperature: -20 to 85
  • Transformer Type: Audio
Audio Transformers -- 237-1126-ND [TY-303P from Triad Magnetics]
from DigiKey

4k Impedance Primary Ohms 600 Impedance Secondary Ohms 2.43:1 Audio Transformer 300Hz ~ 3.5kHz Through Hole [See More]

  • Package Type: Connectorized; Through Hole Plug-in
  • Operating Temperature: -20 to 85
  • Transformer Type: Audio
Audio Transformers -- 237-1127-ND [TY-304P from Triad Magnetics]
from DigiKey

600CT Impedance Primary Ohms 600CT Impedance Secondary Ohms 1:1.05 Audio Transformer 300Hz ~ 3.5kHz Through Hole [See More]

  • Package Type: Connectorized; Through Hole Plug-in
  • Operating Temperature: -20 to 85
  • Transformer Type: Audio
Audio Transformers -- 237-1128-ND [TY-305P from Triad Magnetics]
from DigiKey

600 Impedance Primary Ohms 600 Impedance Secondary Ohms 1:0.90 Audio Transformer 300Hz ~ 3.5kHz Through Hole [See More]

  • Package Type: Connectorized; Through Hole Plug-in
  • Operating Temperature: -20 to 85
  • Transformer Type: Audio
Audio Transformers -- 237-1129-ND [TY-306P from Triad Magnetics]
from DigiKey

600, 150/150 Impedance Primary Ohms 600 Impedance Secondary Ohms 1:1 Audio Transformer 300Hz ~ 3.5kHz Through Hole [See More]

  • Package Type: Connectorized; Through Hole Plug-in
  • Operating Temperature: -20 to 85
  • Transformer Type: Audio
Audio Transformers -- 237-1130-ND [TY-307P from Triad Magnetics]
from DigiKey

600 Impedance Primary Ohms 600 Impedance Secondary Ohms 1:1.07 Audio Transformer 300Hz ~ 3.5kHz Through Hole [See More]

  • Package Type: Connectorized; Through Hole Plug-in
  • Operating Temperature: -20 to 85
  • Transformer Type: Audio
Audio Transformers -- 237-1132-ND [TY-311P from Triad Magnetics]
from DigiKey

600 Impedance Primary Ohms 600 Impedance Secondary Ohms 1:1.05 Audio Transformer 300Hz ~ 3.5kHz Through Hole [See More]

  • Package Type: Connectorized; Through Hole Plug-in
  • Operating Temperature: -20 to 85
  • Transformer Type: Audio
Audio Transformers -- 237-1133-ND [TY-400P from Triad Magnetics]
from DigiKey

600 Impedance Primary Ohms 600 Impedance Secondary Ohms 1:1.07 Audio Transformer 300Hz ~ 3.5kHz Through Hole [See More]

  • Package Type: Connectorized; Through Hole Plug-in
  • Operating Temperature: -20 to 85
  • Transformer Type: Audio
Audio Transformers -- 237-1134-ND [TY-401P from Triad Magnetics]
from DigiKey

600CT Impedance Primary Ohms 600CT Impedance Secondary Ohms 1:1.07 Audio Transformer 300Hz ~ 3.5kHz Through Hole [See More]

  • Package Type: Connectorized; Through Hole Plug-in
  • Operating Temperature: -20 to 85
  • Transformer Type: Audio
Current Sense Transformer
from Murata Power Solutions

Two essential elements of the vast majority of power electronics applications are filtering and isolation. Whether you need to reduce noise or protect vital components, Murata Power Solutions can offer a wide range of products to suit your requirements, having developed over 1,200 highly advanced... [See More]

  • Package Type: Surface Mount; Through Hole Plug-in
  • Transformer Type: Current-Sense
10 Base-T Dual Interface Transformer -- PM-BT01
from Premier Magnetics, Inc.

Designed for IEEE 802.3 10 Base-T. 2000Vrms Minimum Isolation Voltage. Compact Standard DIL OR SIP Packages. Low Insertion Loss. Performs Impedence Match + Filtering + Isolation. Designed for use with most 10 Base T Chips [See More]

  • Package Type: Through Hole Plug-in
  • Operating Temperature: 0 to 70
  • Transformer Type: Interface; Telecom
Class 2 Transformer, FTP Series
from Standex-Meder Electronics

FTP Series Class 2 Transformers are line frequency magnetics designed in a printed circuit board (PCB) mounted package. These transformers 2.5VA to 50 VA and dual primary voltage 115/230V 50/60 Hz. 400 VRMS dielectric strength tested. Bobbins and shroud meet UL94 VO rating. Most models use energy... [See More]

  • Package Type: Through Hole Plug-in
  • Power Rating (VA): 2.5 to 50
  • Input Voltage: 115 to 230
Ultra Wideband Audio Transformer -- MET-01
from Tamura Corporation of America

• Highest Density Package Available. • Optimized for Audio Impedance. • Frequency Range: 300Hz - 100KHz. • HiPot: Most parts meet 1KVrms (Pri:Sec) [See More]

  • Package Type: Through Hole Plug-in
  • Power Rating (Watts): 0.0100
  • Transformer Type: Audio
  • Standards: RoHS
Pulse Transformer with Double Secondary Winding -- IT series
from Schaffner EMC Inc.

Galvanic separation of drive and power circuit. Voltage resistance up to 4kV. Ignition current up to 1A. Turns ratio up to 3:1:1. Frequency : ≤ 40000 Hz. Ignition currents : 0.1 to 1 A. Operating frequency : 0 to 40000 Hz. Rise time : 0.4 to 4 µs [See More]

  • Package Type: Through Hole Plug-in
  • Transformer Type: Electronics; Pulse Transformers
16 pin Pulse Transformer -- PT 105 Series
from Datatronics™

Feature. High ET-Product - Allows Long Pulse Width. 4 Transformers Per Package. Low Leakage Inductance. Low Interwinding Capacitance for Fast Rise Time. Size: 25.40mm x 10.16mm x 7.11. [See More]

  • Package Type: Through Hole Plug-in
  • Output Voltage: 50
  • Transformer Type: Pulse Transformers
  • Power Rating (Watts): 0.2500
LAN-ETHERNET Isolation Transformer -- LE Series
from RCD Components, Inc.

LAN ETHERNET ISOLATION TRANSFORMERS. Economical. Low leakage inductance and interwinding capacitance. Fast rise time: 3nSec typical. Low profile 16-pin DIP (14-pin available). Surface mount design available. Choice of turns ratio, 1:1 or 2:1 [See More]

  • Package Type: Through Hole Plug-in
  • Transformer Type: Telecom
EI Transformer -- GE41-4-7VA
from Hengda Electronic Factory

The machine is used in the production of cold rolled silicon steel, mass production and 100% inspection. Epoxy resin vacuum filling, moisture-proof, dustproof and shockproof. All windings are stitching, compact, beautiful and weldable, and can be soldered directly onto PCB board. We have... [See More]

  • Package Type: Through Hole Plug-in
  • Input Voltage: 220
  • Transformer Type: Electronics
  • Output Voltage: 12
Pulse Transformer
from Murata Power Solutions

Two essential elements of the vast majority of power electronics applications are filtering and isolation. Whether you need to reduce noise or protect vital components, Murata Power Solutions can offer a wide range of products to suit your requirements, having developed over 1,200 highly advanced... [See More]

  • Package Type: Surface Mount; Through Hole Plug-in
  • Transformer Type: Pulse Transformers
DC/DC Power Conversion Transformer -- PM-SM02
from Premier Magnetics, Inc.

Designed for use with Leading Controller Chips. Design Engineenring Support Available. Provides DC/DC Conversion & Isolation. Multiple Configurations. Premier Magnetics' Switch Mode Output transformers have been designed for use with the most popular current- mode switching regulators such as... [See More]

  • Package Type: Through Hole Plug-in
  • Input Voltage: 12
  • Transformer Type: Buck-Boost Transformers; Flyback Transformer (FBT); Power Transformer
  • Output Voltage: 5
High/Low Frequency Current Sense Transformer, CSB Series
from Standex-Meder Electronics

CSB Series High/Low Frequency Current Sense Transformer in PCB through-hole mount (THT) plug-in design with primary and secondary windings that are PC integrated, eliminating need for the customer to install primary winding separately as is usually required in toroidal designs. Low cost compact... [See More]

  • Package Type: Through Hole Plug-in
  • Secondary Current Rating: 20
  • Transformer Type: Current-Sense; High Frequency Transformer
  • Operating Temperature: -40 to 125
Voice/Modem Line Transformer -- TTC-264M
from Tamura Corporation of America

• Approved to UL1950 3rd Edition. • Approved to UL60950 & EN60950. • Hi-Pot 1500Vrms Pri:Sec [See More]

  • Package Type: Through Hole Plug-in
  • Standards: UL
  • Transformer Type: Telecom
Pulse Transformer with Single Secondary Winding -- IT series
from Schaffner EMC Inc.

Galvanic separation of drive and power circuit. Voltage resistance up to 8 kV. Ignition current up to 3 A. Turns ratio up to 3:1. Frequency : ≤ 40000 Hz. Ignition currents : 0.1 to 3 A. Operating frequency : 0 to 40000 Hz. Rise time : 0.3 to 2.3 µs [See More]

  • Package Type: Through Hole Plug-in
  • Operating Temperature: -20 to 70
  • Transformer Type: Electronics; Pulse Transformers
  • Standards: RoHS; UL
Current Sense Encapsulated Toroid
from Datatronics™

Feature. Toroid Current Sense Toroid. Encapsulated. Thru-hole [See More]

  • Package Type: Through Hole Plug-in
  • Transformer Type: Current-Sense
Pulse Isolation Transformer -- ST Series
from RCD Components, Inc.

PULSE_TRANSFORMERS. Low cost. Industry ’s widest selection. Excellent for providing interfacing for starlan configurations, digital and data processing, line coupling matching, and Tokin Ring isolation. Custom schematics available. Wide inductance range: 10 μH to 5000 μH. Wide choice of... [See More]

  • Package Type: Through Hole Plug-in
  • Transformer Type: Pulse Transformers
PCB Transformer -- GE30-3-3VA
from Hengda Electronic Factory

The machine is used in the production of cold rolled silicon steel, mass production and 100% inspection. Epoxy resin vacuum filling, moisture-proof, dustproof and shockproof. All windings are stitching, compact, beautiful and weldable, and can be soldered directly onto PCB board. We have... [See More]

  • Package Type: Through Hole Plug-in
  • Input Voltage: 220
  • Transformer Type: Electronics
  • Output Voltage: 9
Low Voltage Rectifier Transformer, TRP-TRPD Series
from Standex-Meder Electronics

TRP-TRPD Series Low Voltage Rectifier Power Transformers are line frequency magnetics designed for printed circuit board (PCB) vertical mounting (TRP series is 6 pin and TRPD series is 8 pin). 0.5VA to 24VA single or dual primary voltages. 6 Pin 230 Volt 50/60Hz also available. CSA and UL recognized... [See More]

  • Package Type: Through Hole Plug-in
  • Input Voltage: 230
  • Transformer Type: Rectifier Transformer
  • Power Rating (VA): 24
Voice/Modem Line Transformer -- TTC-5000
from Tamura Corporation of America

• Optimized for High Speed Modem Applications. • Frequency Range 300Hz to 4kHz. • 1500 Vrms Hi-Pot (Pri:Sec). • Approved to UL1950 3rd Edition. • PCMCIA Packages. • Approved to UL60950 & EN60950 [See More]

  • Package Type: Through Hole Plug-in
  • Standards: RoHS; UL
  • Transformer Type: Telecom
Current Sense Transformer -- PT219 Series
from Datatronics™

Feature. Designed to meet large Secondary Saturation Voltage. Accurate Turns Ratio. High Dielectric Strength Capacity 2500VRMS. Fully molded construction with center thru hole. for Primary Load. [See More]

  • Package Type: Through Hole Plug-in
  • Secondary Current Rating: 3.5 to 30
  • Transformer Type: Current-Sense
  • Standards: RoHS
PCB Transformer -- ZE54-2-20
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. All windings are stitching, compact, beautiful and weldable, and can be soldered directly onto PCB... [See More]

  • Package Type: Through Hole Plug-in
  • Input Voltage: 0.0 to 115
  • Transformer Type: Electronics
  • Output Voltage: 24
Low Voltage Rectifier Transformer,TRPI Series
from Standex-Meder Electronics

TRPI Series Low Voltage Rectifier Power Transformers are line frequency magnetics designed in a printed circuit board (PCB) mounted package with 2.5VA to 56VA and 4000VRMS isolation primary and secondary. Industry standard P.C. board layout. Dual primary/secondary windings for series/parallel... [See More]

  • Package Type: Through Hole Plug-in
  • Power Rating (VA): 2.5 to 56
  • Transformer Type: Rectifier Transformer
  • Standards: CSA; UL
Current Sense Transformer -- PT272 Series
from Datatronics™

Feature. Designed for SMPS applications. International Safety construction. High dielectric strength capability 3750VRMS. Frequency range 25kHz [See More]

  • Package Type: Through Hole Plug-in
  • Standards: RoHS
  • Transformer Type: Current-Sense
PCB Transformer Single Phase Toroidal -- GO-8-12VA
from Hengda Electronic Factory

It adopts self-made low dissipation high quality ring core (PO less than 0.9w/Kg), small volume, high efficiency and low temperature rise. The patent technology realizes the needle distance and the distance can be adjusted according to the requirements of the customers. Epoxy resin vacuum filling,... [See More]

  • Package Type: Through Hole Plug-in
  • Input Voltage: 220
  • Transformer Type: Electronics
  • Output Voltage: 12
Power Transformer, TRPL Series
from Standex-Meder Electronics

TRPL Series Power Transformers are line frequency magnetics designed for printed circuit board (PCB) mounting and have low inter-winding capacitance and require no electro-static shield due to separated windings. Dual Primaries 115/230V, 50/60Hz and 2.5VA to48 VA. Industry standard P.C. pin layout. [See More]

  • Package Type: Through Hole Plug-in
  • Power Rating (VA): 2.5 to 48
  • Input Voltage: 115 to 230
  • Standards: CSA; UL
Current Sense Transformer -- PT273 Series
from Datatronics™

Feature. Designed for Switching Mode Power Supply Applications. High Dielectric Strength Capability 3750VRMS. Frequency Range 20 kHz - 200 kHz. Fully molded construction with center thru hole for Primary Lead. The PT27312 is VDE approved [See More]

  • Package Type: Through Hole Plug-in
  • Standards: RoHS
  • Transformer Type: Current-Sense; Switch Mode Transformers
Telecomm Transformer, TAP Series
from Standex-Meder Electronics

TAP Series Telecomm Transformers are audio matching telecommunications line frequency magnetics designed for PC board (PCB) mount and feature an economical open P.C. frame mounting with bifilar winding for capacitive and resistive balance. Frequency response 200Hz to 15KHz and insertion loss less... [See More]

  • Package Type: Through Hole Plug-in
  • Input Voltage: 250
  • Transformer Type: Audio; Telecom
  • Standards: CSA; UL
Current Sense Transformer -- PT74805
from Datatronics™

Feature. VDE Approved, VDE Nr. 119374. 3000 Vrms Hipot. LOW COST. Wide Frequency Range (50KHz - 500KHz). Rated Peak Current up to 36A. Turns ratio - 200:1:1. Patent Pending. [See More]

  • Package Type: Through Hole Plug-in
  • Standards: RoHS; VDE
  • Transformer Type: Current-Sense
Current Sense Transformer -- PT75373
from Datatronics™

Feature. VDE Approved, VDE Nr. 119374. 3000 Vrms Hipo.t. LOW COST. Wide Frequency Range (50KHz - 500KHz). Rated Peak Current up to 36A. Turns ratio - 50:1:1. Patent Pending. [See More]

  • Package Type: Through Hole Plug-in
  • Standards: RoHS; VDE
  • Transformer Type: Current-Sense
High Voltage Transformer -- 4283-1200 Series
from Datatronics™

Feature. 2000 V Peak Output. Full Selection of Turns Ratio. Easy Pick and Place Design. For Portable Application. Virtually Corona Free [See More]

  • Package Type: Through Hole Plug-in
  • Output Voltage: 2000
  • Transformer Type: Flyback Transformer (FBT)
  • Power Rating (Watts): 30
High Voltage Transformer -- 4283-1250 Series
from Datatronics™

Feature. 2000 V Peak CT Output. Full Selection of Turns Ratio. Easy Pick and Place Design. For Portable Application. Virtually Corona Free [See More]

  • Package Type: Through Hole Plug-in
  • Output Voltage: 2000
  • Transformer Type: Flyback Transformer (FBT)
  • Operating Temperature: -60 to 125
High Voltage Transformer -- 4283-1400 Series
from Datatronics™

Feature. Low Profile. Full Selection of Turns Ratio. Optimal Performance @ 25 kHz and Above. Temperature range -40C to +65C. Easy Pick and Place Design. 0.5 Watt Output. 800 VDC Output [See More]

  • Package Type: Through Hole Plug-in
  • Power Rating (Watts): 0.5000
  • Output Voltage: 800
  • Operating Temperature: -40 to 65
Mil-STD-1553 Data Bus Transformer -- 4260-1647 Series
from Datatronics™

Features. Qualified on DSCC QPL MIL-T-21038/27 Level C, M & T. Datatronics P/N on Level C, M & T Parts. MIL-STD-1553 A/B and MAC Air Specifications A3818, A5690, A5232 and A4905. Compliance to MIL-STD 981, Class S Available. Compliance to Panavia 6465 Available. Operating Temperature: -55C... [See More]

  • Package Type: Through Hole Plug-in
  • Operating Temperature: -55 to 130
  • Transformer Type: Interface
  • Standards: MIL-STD
Mil-STD-1553 Dual Data Bus Transformer -- 4260-1646 Series
from Datatronics™

Features. Built and Tested to MIL-T-21038/28 Level C, M & T. Datatronics P/N on Level C, M & T Parts. MIL-STD-1553 A/B and MAC Air Specifications A3818, A5690, A5232 and A4905. Compliance to MIL-STD 981, Class S Available. Compliance to Panavia 6465 Available. Operating Temperature: -55C to... [See More]

  • Package Type: Through Hole Plug-in
  • Operating Temperature: -55 to 130
  • Transformer Type: Interface
  • Standards: MIL-STD
Pulse Transformer -- 4257 Series
from Datatronics™

Feature. Microminature size. Built & tested to meet applicable requirements of MIL-PRF-21038. Levels C, M & T available. Custom designs available for high reliability and application compatibility. Operating temperature: -55C to +130C. Size: .300" x .400" x .170. [See More]

  • Package Type: Through Hole Plug-in
  • Output Voltage: 50
  • Transformer Type: Pulse Transformers
  • Power Rating (Watts): 0.0250
Telecom Transformer -- LM302-1L
from Datatronics™

Feature. Subminature, Low Profile. 10.7 Seated Height. Vacuum Encapsulated. Tested to 6500 VDC. Meets or Exceeds Requirements of Most. Internation Safety Standards [See More]

  • Package Type: Through Hole Plug-in
  • Operating Temperature: -20 to 85
  • Transformer Type: Telecom
  • Standards: RoHS