Pre-biased PNP — what the integrated resistors save you
The BCR 166F E6327: The BCR 166F is a PNP pre-biased transistor from Infineon, meaning a base resistor (R1) of 4.7 kOhms and an emitter-base resistor (R2) of 47 kOhms are built into the SOT-723 package. That eliminates two passives from the BOM and shrinks the board footprint for a simple digital-switch or inverter function.
50 V, 100 mA — where it fits
Collector-emitter breakdown is rated at 50 V, with a continuous collector current of 100 mA and a power dissipation ceiling of 250 mW.
160 MHz transition frequency — switching speed headroom
Transition frequency is 160 MHz. Saturation voltage is 300 mV max at 500 µA base and 10 mA collector.
Package and mounting
The SOT-723 package (also marked as PG-TSFP-3) is a three-lead body.
Obsolete — sourcing path
Infineon lists the BCR 166F as obsolete.
