PNP pre-biased transistor with integrated resistors
The Infineon BCR158WH6327XTSA1 is a PNP pre-biased digital transistor that integrates the bias resistor network (R1 = 2.2 kOhms, R2 = 47 kOhms) so you can drop two external resistors from the BOM. The SC-70 / SOT-323 package keeps the footprint small.
100 mA collector current, 50 V breakdown — sizing the load
The collector current rating of 100 mA and collector-emitter breakdown voltage of 50 V set the load envelope. The 250 mW power dissipation limit means the total voltage-current product across the transistor must stay under that ceiling.
NRND — plan the BOM transition
It is still available for existing production BOMs, but Infineon has flagged it for eventual phase-out.
