Coilcraft, Inc. WB8-1TSL WB8-1TSLD WB8-1TSL WB8-1TSLD

Wideband transformers for surface mount applications, designed for impedance matching in RF circuits with a 1:8 turns ratio and a bandwidth of 0.150-400 MHz, featuring 18 mOhm maximum DC resistance on the primary, 270 mOhm on the secondary, and 17 mA maximum DC imbalance. The part is rated for 500 Vrms isolation, 250 mA current, 1/4 W RF input power, and operates from -40°C to +85°C. It uses a ferrite core with RoHS-compliant matte tin terminations, weighs 0.38-0.40 g, and is packaged in 500-part 13-inch reels. The device meets MSL 1 moisture sensitivity and withstands three reflow cycles at 260°C. No center tap is present on the primary or secondary.