negative temperature coefficient


Also found in: Acronyms, Wikipedia.

negative temperature coefficient

[′neg·əd·iv ′tem·prə·chər ‚kō·i‚fish·ənt]
(physics)
A condition wherein the resistance, length, or some other characteristic of a material decreases when temperature increases.
References in periodicals archive ?
Note that the overall emitted flux increases with temperature, although LEDs have negative temperature coefficients of output due to thermally activated nonradiative recombination.
Both the device's internal junction temperature sensor and external Negative Temperature Coefficient (NTC) thermistor ensure safe charging of the system by reporting dedicated interrupts to the iUC Control Bus.
Both the device s internal junction temperature sensor and external Negative Temperature Coefficient (NTC) thermistor ensure safe charging of the system by reporting dedicated interrupts to the iAC Control Bus.
The surface mount Series 2322 615 3x (0603 package) and 2322 615 5x (0805 package) negative temperature coefficient (NTC) chip thermistors are suitable for temperature compensation, sensing and protection circuits in applications such as battery chargers, switch mode power supplies and automotive systems.
Materials with a negative temperature coefficient of dielectric constant are used for compensation of oscillators and VCOs exhibiting a negative frequency and temperature coefficient.
The negative temperature coefficient of the reference voltage means that LED current is automatically reduced at high temperatures, thereby helping to protect LEDs and improve circuit reliability.
These high-performance negative temperature coefficient thermistors feature an operating temperature range of-50[degrees]C to + 110[degrees]C and are available in all resistance-temperature (R/T) curve materials.
The series is designed with a negative temperature coefficient to protect LEDs from thermal runaway at extreme voltage and operating temperatures.
The SC805 and SC806 can monitor a negative temperature coefficient pin to detect that the battery is not connected.
The high-performance, OSTAR light source is ready-to-install and includes a built-in heat sink, mounting holes for accurate positioning, a built-in, quick electrical connector and an on-board Negative Temperature Coefficient (NTC) thermistor for thermal management.
Additional features include a negative temperature coefficient (NTC) thermistor interface for monitoring the ambient temperature and the ability to disable the time limit of the fast charge.
This new offering addresses the increased demand for depletion mode MOSFETS that feature normally closed switch operation, low resistance and a negative temperature coefficient.