features to-220 housing low inductance ceramic backplane high power rating rohs compliant* applications power supplies motor drives test and measurement recti ers electrical & thermal characteristics pwr221t-30 series power resistor *rohs directive 2002/95/ec jan 27 2003 including annex. speci cations are subject to change without notice. customers should verify actual device performance in their speci c applications. general information bourns ? pwr221t-30 series is a to-220 style power resistor made using thick ? lm on alumina ceramic technology. it is used in current limiting, capacitor discharge or current measurement circuits in power supplies for telecom and industrial applications . parameter value(s) resistance (see table of standard values) 0.02 to 130 k power rating @ 25 ?c case temperature 30 w** tolerance 1 %***, 5 % tcr 0.100 |