The Infineon BCR108SE6327BTSA1 is a dual NPN transistor with integrated bias resistors — a 2.2 kΩ series base resistor and a 47 kΩ resistor between base and emitter — in a single SOT-363 package. It was designed for switching and interface circuits where the external resistor network is already on-chip, saving board space and reducing component count. Typical applications included inverter stages, relay drivers, and logic-level interface circuits in consumer and industrial equipment.
Ratings at a glance
Collector-emitter breakdown voltage is 50 V, with a maximum collector current of 100 mA. DC current gain minimum is 70 at 5 mA, 5 V. Transition frequency is 170 MHz. Maximum power dissipation is 250 mW.