Pre-biased NPN in a compact SC-75 package
The BCR 119T E6327: The Infineon BCR 119T is an NPN pre-biased transistor that integrates a 4.7 kΩ base resistor (R1), eliminating the need for an external bias resistor in low-current switching and interface circuits. It is housed in the tiny SC-75 (SOT-416) surface-mount package, making it suitable for space-constrained designs such as portable electronics, sensor interfaces, and logic-level level shifters.
50 V breakdown and 100 mA collector current
With a collector-emitter breakdown voltage of 50 V and a maximum collector current of 100 mA, this part handles typical low-power switching loads—relay coils, small solenoids, LED drivers—where the supply rail stays under 50 V. The 150 MHz transition frequency supports switching up to low-MHz range, adequate for most GPIO-driven loads and low-speed PWM.
