Products/Services for PTC Leakage Current
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Current Leakage Testers - (83 companies)Current leakage testers measure the amount of current that leaks to ground. Current leakage testers measure the amount of current that flows through a ground conductor. They include a measuring device or probe that connects to a conductive point...Current Leakage RangeResistance RangeTesting Method -
Circuit Breakers - (928 companies)Circuit breakers are mechanical switching devices capable of breaking currents under specified abnormal circuit conditions. Circuit breakers are automatic electrical switches designed to interrupt current flow in the event of an overload or short... -
Circuit Protection Components - (247 companies)Circuit protection devices are used to protect electronic components from unwanted transients such as current and voltage surges, electrostatic discharge (ESD), lightning, spikes and other signals that can imperil the operation or damage... -
Resistors - (738 companies)Resistors are electrical components that oppose the flow of either direct or alternating current. They are used to protect, operate, or control circuits. Resistors are electrical components that oppose the flow of either direct or alternating... -
Resettable PTCs - (12 companies)...operation to resume. Resettable PTCs (positive temperature coefficient) feature fuses possessing internal resistance characteristics limiting further disturbances from a short circuit or electrical current overload. Unlike traditional fuses demanding...
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Current Sensors - (271 companies)Current sensors measure AC and/or DC current levels. They receive current inputs and provide outputs as analog voltage signals, analog current levels, switches, or audible signals. Current sensors measure AC and/or DC current levels. The sensors...
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Current Sources - (88 companies)Current sources provide reliable current for electrical component testing and for powering specialized components. Description. Current sources provide reliable current levels for electrical component testing and for powering specialized components...
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Current Testers and Detectors - (45 companies)Current testers and detectors check for the presence of current flow in electrical circuits. They are also used to locate current in hidden wires and cables. Measurement type and measurement range are important specifications to consider. Types...
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Hall Effect Proximity Sensors - (103 companies)...in a DC circuit. Acceptable values of leakage current must be evaluated in this type of circuit. Switch types can be normally open (NO) or normally closed (NC). Image Credit: Fargo Controls, Inc. If the switch is a NAMUR type switch or a specialized...
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Current Limiting Diodes - (39 companies)Current limiting diodes (CLD) regulate current over a wide voltage range. There are several types of current limiting diodes (CLD). Examples include a current regulator diode, constant current diode, and current limit diodes. Current limiting diodes...
Product News
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CARLO GAVAZZI Automation Components
Earth Leakage Monitoring Relays CARLO GAVAZZI's two new Earth Leakage Monitoring Relays, the DEA71 and DEB71, when used in conjunction with a CTG Series Core Balance Current Transformer and appropriate circuit breaker, provide machine protection against fault currents, and help to reduce fire hazards. These earth leakage relays react to small changes in current which can occur due to insulation or grounding failure. Two models, each offering choices of threshold ranges, allow users to find the right solution for their unique... (read more) -
Tecmark Corporation
Protection From Ground Fault Leakage Special Purpose Ground Fault Circuit Interrupter (SPGFCI) is designed to protect and safeguard, personnel, equipment, and electrical circuits from ground fault leakage. This line of product mitigates the effects that a ground fault may have on your integrated equipment while also providing shock protection for humans. The unit is engineered to interrupt leakages of 20mA or greater and is capable of clearing 500 O faults in less than 21mS to mitigate electrocution. For supplemental shock... (read more)Browse Ground Fault Circuit Interrupters (GFCI) Datasheets for Tecmark Corporation -
Dickow Pump Company, Inc.
Leakage free NMWR-pumps Hot oil circulation pump with magnetic coupling. Leakage free NMWR-pumps are designed for handling heat transfer fluids with temperatures up to 750 F without water cooling. Maximum capacity 4000 GPM with differential head 500 ft. Hot Oil Circulation Pumps series NMW/ NMWR/ PRMW (3). Magnetic coupled DICKOW-pumps of the series NMW/PRMW are of sealless design. The containment shell forms a closed system with hermetically sealed liquid end. Applications. The magnetic driven NMW/PRMW-pumps... (read more)Browse Magnetic Drive Pumps Datasheets for Dickow Pump Company, Inc. -
Thermik Corporation
Temperature monitoring with PTC thermistors PTC Thermistors are optimally designed for direct installation in windings of electric motors and transformers, to sense and monitor temperature. Thermik 's unique experience manufacturing PTC ceramics ensures unsurpassed quality and engineering. All Thermistor products are customizable with unlimited sensor-heads in series, and special coding, insulation, connectors, housings, and wire lengths. The PTC 's are usually installed parallel to the coil so that the mechanical strain is minimized... (read more)Browse Thermistors Datasheets for Thermik Corporation -
Thermik Corporation
SNM - PTC Thermistors THERMIK thermistors are used for temperature monitoring. They are optimally designed for direct installation in the windings of electric motors and transformers. In their respective housings, THERMIK thermistors prevent overheating of devices, such as electronic assemblies, heat sinks, etc. Thermik is one of the few suppliers who can draw on their own experience in the manufacture of PTC ceramics. Because the underlying technology is fundamentally important in the process, our thermistors... (read more)Browse Thermistors Datasheets for Thermik Corporation -
Thermik Corporation
STM Thermistors - PTC THERMIK thermistors are used for temperature monitoring. They are optimally designed for direct installation in the windings of electric motors and transformers. In their respective housings, THERMIK thermistors prevent the overheating in devices such as electronic assemblies, heat sinks, etc. Thermik is one of the few suppliers who can draw on their own experience in the manufacture of PTC ceramics. Because the underlying technology is fundamentally important in the process, our thermistors... (read more)Browse Thermistors Datasheets for Thermik Corporation -
Thermik Corporation
LTM - PTC Thermistors THERMIK thermistors are used to monitor temperature. They are optimally designed for direct installation in the windings of electric motors and transformers. In their respective housings, Thermik thermistors can prevent the overheating of devices such as electronic assemblies, heat sinks, etc. THERMIK thermistors correspond to DIN 4408, DIN 44082 and IEC 34-11-2, and exhibit a very high temperature sensitivity. The resistance increases strongly in the area of the rated response temperature. This... (read more)Browse Thermistors Datasheets for Thermik Corporation -
Thermik Corporation
SKM - PTC Thermistors THERMIK thermistors are used for temperature monitoring. They are optimally designed for direct installation in the windings of electric motors and transformers. In their respective housings, THERMIK thermistors prevent overheating of devices, such as electronic assemblies, heat sinks, etc. Some advantages of our thermistors include small dimensions and mechanical stability, fast response, temperature-resistance characteristics tailored to the application in question. Technical Specifications:... (read more)Browse Temperature Sensors Datasheets for Thermik Corporation -
JETSEAL, Inc.
Metallic seals for low leakage applications The most demanding applications are best served by JETSEAL 's V-Seals which combine the advantages of compactness, lowest leakage rates, high pressure capability, and high springback. The V-Seal is one of JETSEAL 's most effective metallic seals. We are able to engineer the optimum seal shape by profiling its cross-section thus providing a carefully controlled variable wall thickness to maximize springback and to optimize the sealing contact force for a specific application. Because the V-Seal... (read more)Browse Metal Ring Seals Datasheets for JETSEAL, Inc. -
Pelonis Technologies, Inc.
Honeycomb PTC Heaters- to your specs PTI manufactures "Specialty Fan PTC Heaters" to match customer specifications. Configurations come in various sizes, voltages, and power factors. Honeycomb PTC heaters are compact, safe, powerful, energy efficient, and have a long operating life. Single disc PTC heaters are available in 350W. Standard PTC holder assemblies are available in 3pc, 4pc, and 5pc configurations with up to 2000W of power. Custom designs are welcome. Add a fan and filter kit to to make a safe, compact, energy efficient... (read more)Browse Industrial Heaters Datasheets for Pelonis Technologies, Inc.
More Information
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Choosing the Best Circuit Protection
Leakage current : The PTC is said to have tripped when it has transitioned from the low resistance state to the high resistance state due to the overload.
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A survey of output filter topologies to minimize the impact of PWM inverter waveforms on three-phase AC induction motors
Figure 5 illustrates the potential-type suppression circuit ( PTC ) for reducing the leakage current in the high-frequency carrier inverter[5].
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Device performance and yield — A new focus for ion implantation
The results (figure 4) show a dramatic reduction in leakage current at the lower temperature ( PTC II is VSEA’s trade name for cryogenic implant).
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Electric Fuses
PTC devices require a low joule heating leakage current or external heat source in order to maintain their tripped condition.
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Resettable PTCs - Littelfuse
This fault current level is the maximum current that the device can withstand safely, keeping in mind that the PTC will not actually interrupt the current flow (see Leakage Current above).
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http://www.mouser.com/catalog/supplier/library/pdf/LittlefuseFusesSelGuide.pdf
PTCs will not actually interrupt the current flow (see LEAKAGE CURRENT above), whereas fuses do interrupt the current flow in response to the overload.
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Reuse of existing design information in the development of new electronic PTC devices via a neural network approach
In addition, current leakage through a micro- scopic discharge of voltage across a PTC device may cause self- burning of the PTC device in the form of arcing, flame, or flash, and the occasional occurrence of the negative temperature coef- ficient (NTC …
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Low-loss Electronic Starter for Single-Phase Compressors
The PTC behaves then like a switch at OFF state, but with a high leakage current , resulting in high power losses (approx. 2.5W).
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Design and Implementation of Fully-Integrated Inductive DC-DC Converters in Standard CMOS
In the on-state the on-resistance will be prone to a PTC -effect and in the off-state the MOSFET switches will introduce a leakage current , which increases with their temperature.
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Effective remote control of electric motors using GSM technology
… external switches, the thermal capacity remaining, the red/white and blue current percentage registers, the current voltage level, the current earth leakage level, alarm flags that will indicate any current alarms, trip flags that … … positive temperature co- efficient ( PTC ) level in ohms, the …
