positive temperature coefficient


Also found in: Acronyms, Wikipedia.

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 ?
Temperature compensating is essential for solenoids, as the metals used to manufacture coils--such as copper or aluminum --exhibit a positive temperature coefficient (PTC).
Other bipolar devices do not have the Positive Temperature Coefficient technology and offset electrode configuration designed for minimizing energy spread into surrounding tissue.
DuPont's self-limited positive temperature coefficient (PTC) carbon ink materials help ensure heated car seats maintain a more consistent temperature for enhanced comfort.
The ceramic HVR600 Series is said to be the industry's first resettable telecom protector based on ceramic positive temperature coefficient (CPTC) materials.
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.
Wickmann has introduced its Polyfuse[R] HVR250 Series, a polymer-based Positive Temperature Coefficient (PPTC) device that is designed to protect telecommunications and networking equipment against lightning strikes and power crosses.
Made of patented polymeric positive temperature coefficient (PPTC) technology, both the FRX90V series and FBR series offer a range of hold current from 100 mA to 3.
Selco Products Company is offering a complete line of advanced Positive Temperature Coefficient (PTC) Thermistors for circuit protection that are suitable for low-voltage DC or AC applications.
These resettable fuses are made of polymeric positive temperature coefficient (PPTC) technology.
Positive temperature coefficient in forward direction resistivity which makes it feasible to parallel devices safely to scale power up.
Easy paralleling due to positive temperature coefficient for RON and negative temperature coefficient for gain
Technologies offered by Littelfuse include Fuses; Gas Discharge Tubes (GDTs); Positive Temperature Coefficient Devices (PTCs); Protection Relays; PulseGuard[R] ESD Suppressors; SIDACtor[R] Devices; Silicon Protection Arrays (SPA[TM]); Switching Thyristors; TVS Diodes and Varistors.

Full browser ?