positive temperature coefficient


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positive temperature coefficient

[′päz·əd·iv ′tem·prə·chər ‚kō·i‚fish·ənt]
(thermodynamics)
The condition wherein the resistance, length, or some other characteristic of a substance increases when temperature increases.
References in periodicals archive ?
The positive temperature coefficient of the fuse element causes an increase in resistance (prior to opening), thereby preventing an absolute short circuit to the power source.
With the ZSSC3154, two different input signals, such as a pressure signal from a resistive full bridge and temperature from an external temperature sensor (diode or positive temperature coefficient (PTC) resistor), are read out using one IC.
DuPont's self-limited positive temperature coefficient (PTC) carbon ink materials help ensure heated car seats maintain a more consistent temperature for enhanced comfort.
New polymer positive temperature coefficient (PPTC) type resettable fuse series released today.
The outstanding TRENCHSTOP 5 efficiency results in 60 percent lower turn-off switching losses compared to Infineon s HighSpeed (H3) family plus mild positive temperature coefficient of the saturation voltage, which is associated with the conduction losses.
Other bipolar devices do not have the Positive Temperature Coefficient technology and offset electrode configuration designed for minimizing energy spread into surrounding tissue.
Products supplied by HVCC on the Tucson compact crossover SUV include a centrifugal air compressor, coolant heater, high-voltage cooling module and positive temperature coefficient (PTC) heater, and an HVAC system with an electric compressor.
The Pet Heating Pad has a built-in Positive Temperature Coefficient (PTC) carbon heating system.
Positive Temperature Coefficient (PTC) Ceramic heaters for safer and more effective heat distribution, without emitting common odors associated with heaters manufactured using alternate materials (available on 208V-230V models)
The MHP (metal hybrid PPTC) device is an overcurrent protection device that combines a bimetal protector in parallel with a polymeric positive temperature coefficient (PPTC) element.

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