Pre-biased PNP — the BOM simplification it was designed for
The BCR 183 B6327 is a PNP pre-biased digital transistor from Infineon, integrating a 10 kOhm base resistor (R1) and a 10 kOhm emitter-base resistor (R2) in a single SOT-23-3 package. It replaces the discrete transistor plus two external resistors, saving board space and reducing component count in switching and interface circuits.
The 200 mW maximum power dissipation sets a practical ceiling on continuous collector current at a given Vce. At 300 mV saturation (typical at 10 mA), the dissipation is only 3 mW, leaving ample headroom. But driving the full 100 mA at a Vce of 2 V would hit 200 mW — so the load voltage drop and duty cycle need checking if you are switching near the current limit.
Obsolete — filling the BOM line now
It is no longer in production, so new designs should avoid it. There is no official Infineon successor listed for this exact order code; a pin-compatible pre-biased PNP in SOT-23 with 10 kOhm resistors from another manufacturer may serve as a drop-in, but verify the resistor ratio and Vce(sat) against your operating point before committing the board.