BFW10 Transistor N-Channel Depletion JFET Philips semiconductors BFW10

Product Overview

The BFW10 is a classic N-Channel junction field-effect transistor (JFET) designed for high-input-impedance applications. As a depletion-mode device, it is normally "ON" at zero gate-source voltage ($V_{GS} = 0$) and requires a negative gate voltage to reduce the drain current. Its high input impedance and low noise characteristics make it an excellent choice for low-noise preamplifiers, high-impedance buffers, and RF/VHF amplifier stages. Historically produced by Philips Semiconductors, it remains a staple component in classic analog design.

Core Specifications

• Manufacturer: Philips Semiconductors (Original)

• Package Type: TO-72 (Metal Can)

• Component Type: N-Channel Depletion-Mode JFET

• Drain-Source Voltage ($V_{DS}$): 30V

• Gate-Source Voltage ($V_{GS}$): -30V

• Gate-Source Cut-off Voltage ($V_{GS(off)}$): -0.4V to -8V

• Drain Current ($I_{DSS}$): 5mA to 15mA

• Power Dissipation ($P_{tot}$): 300mW (at $T_{amb} = 25^\circ C$)

• Frequency Range: Suitable for VHF and high-frequency applications

• Marking Code: BFW10

• Part Number: BFW10