The BC557CBK from Diotec Semiconductor is a General Purpose PNP Bipolar Junction Transistor that is ideal for signal processing switching, and amplification commercial/ industrial grade applications. It has a collector-emitter voltage of up to 50 V, a base-emitter voltage of 660 mV, and a saturated collector-emitter voltage of 80 mV. This RoHS-compliant transistor has a peak base current of up to 200 mA and a collector current of less than 100 mA. It is available in a through-hole package that measures 4.6 x 17.1 mm.