voltage derating

voltage derating

[′vōl·tij ¦dē′rād·iŋ]
(electricity)
The reduction of a voltage rating to extend the lifetime of an electric device or to permit operation at a high ambient temperature.
References in periodicals archive ?
The devices operate over a temperature range of -55 AC to +105 AC with voltage derating above +85 AC.
TCJ Series capacitors maintain 20% recommended voltage derating, extends usable voltage range
The devices operate over a temperature range of -55 AuC to +105 AuC with voltage derating above +85 AuC.
In addition, the TCN Series polymer capacitors are suitable for continuous operation with just 20% voltage derating due to their reduced ignition failure mode and surge current robustness.
ST s new SiC diodes are automotive qualified, and feature increased reverse-breakdown voltage of 650V, satisfying the voltage derating factors applied by designers and car manufacturers to ensure suitable safety margin between normal and short-term peak voltages across the semiconductors used in OBC.
These features, along with low voltage derating, allow for use of smaller and, in some product designs, up to 90% fewer capacitors to support device function.
Sequence's tools support timing analysis with voltage derating due to IR drop across the switches, enabling designers to understand the switches' effects on timing.
Offered in the D case code, T25 devices feature a capacitance range from 22 oF to 330 oF over voltage ratings from 16 V to 50 V; capacitance tolerances of A 10 % and A 20 %, and an operating temperature range of -55 AC to +85 AC, to +125 AC with voltage derating.
With its enhanced voltage derating and low ESR values, the T521 Series delivers increased performance and reliability within a smaller package size compared to currently available capacitor options.
Additional voltage derating typically means going from 500 to 600 volts and from 1000 to 1200 volts which significantly increases the on resistance and conduction losses of the devices with corresponding lower efficiencies.
Recommended deratings for the T521 Series include a 20% voltage derating for optimal reliability.
The T42 series offers an operating temperature range of -55 AC to +85 AC, +125 AC with voltage derating, and maximum ripple current from 0.