Pre-biased NPN in SOT-723
The Infineon BCR 114F E6327 is a pre-biased NPN transistor in a SOT-723 surface-mount package, integrating two bias resistors—a 4.7 kOhms base resistor (R1) and a 10 kOhms emitter-base resistor (R2)—to simplify driver and switching circuits. With a collector-emitter breakdown voltage of 50 V and a maximum collector current of 100 mA, it targets low-current switching and interface applications where external bias components would otherwise consume board area. The device is specified for a DC current gain (hFE) of 30 minimum at 5 mA, 5 V, and a transition frequency of 160 MHz, suitable for signal-level switching up to moderate speeds.
Built-in resistors: what the values mean
The 4.7 kOhms base resistor and 10 kOhms emitter-base resistor set a fixed bias point, so the transistor turns on with a predictable base current from a logic-level or MCU output—no external resistor network needed. The Vce saturation of 300 mV at 500 µA base drive and 10 mA collector current gives a low on-state voltage drop for a 100 mA rated part, keeping dissipation manageable in a 250 mW package.
Obsolete — sourcing through independent distribution
The BCR 114F carries an obsolete lifecycle status.