KOA Speer introduces metal thin film resistors with 0.3 W in 0306 package

KOA Speer Electronics’ newest offering is the high power-precision WN73H series metal thin film chip resistor, designed to meet the demanding requirements of high heat and high moisture applications. These reverse geometry resistors pack power ratings of 0.3W in a 0306 package and 1W in a 0612. Resistance values range from 10Ω ~ 100kΩ, with high precision resistance tolerances as low as ±0.1% and a high-performance T.C.R. down to ±10ppm/°C.

The WN73H offers excellent heat tolerance with an operational temperature range of -55°C ~ +155°C and a rated ambient temperature of 85°C. It also has excellent moisture resistance in qualification testing at 85°C and 85% relative humidity for 1,000 hours.

This new series of high-precision resistors is ideal for applications that demand high reliability, such as automotive, medical, and industrial applications. The WN73H resistors are useful for Electronic Control Units (ECUs) such as inverters and 48V mild hybrid systems.