Stackpole announces the expansion of the TR Series of TO-220 and TO-247 style power resistors. The TR Series value range now starts at 50 milliohms and goes up to 20K ohms for most sizes (the TR30 value range extends up to 100K ohms). The TR Series is available in 0.5% tolerances and TCR as low as 50 ppm making it suitable for precision power resistor requirements. Power ratings for the TR series, assuming use with a heat sink and a 25C case temperature, ranges from 20W up to 100W.
The TR Series is ideal for use with power semiconductors. Using a heat sink allows these relatively small parts to handle high power safely, reliably, and with minimal resistance shift over the life of the product.
Pricing for the TR Series ranges from $1.50 each to $6.00 each in full package quantities.
Contact Stackpole or one of our franchised distributors for volume pricing. Many popular sizes and resistance values are currently in stock either directly through Stackpole or through distribution.