Heatsink-mount high-power resistors use non-inductive thick-film technology
20-05-2015 |
Farnell element14
|
Semiconductors
TT Electronics' WMHP Series heatsink-mount high-power resistors are now
available from Farnell element14. They utilize non-inductive thick-film
technology to ensure low thermal resistance making them suitable for
high-frequency and fast-pulse use. They are available in TO-220 and TO-147
standard power packages, with power ratings from 20W to 100W.
The parts offer high surge and frequency performance. Thick film technology
across the entire ohmic value range gives consistent reliability under surge
conditions, which reduces field failure costs. The strong surge and HF
performance makes them ideal for fast switching power circuits in motor
drive or power supply applications.
With a wide value range from 50mohm to 10kohm, they cover low value current
sense as well as general power resistor applications. The products offer
precision to 1% and 50ppm/C and operating temperatures up to 175C, says the
company.