BS170 Small Signal MOSFET 500mA 60V N-Ch

The BS170 is a compact N-Channel enhancement mode MOSFET designed for small signal and switching applications in low-power electronic circuits. Built to handle up to 500mA drain current and a 60V drain-source voltage, this transistor is an ideal choice for hobbyists, students, and electronics engineers working on signal switching, amplification, and logic-level interfacing projects.

Housed in a TO-92 through-hole package, the BS170 is breadboard and PCB friendly, making it perfect for prototyping and small-scale production alike. Its low threshold voltage and fast switching characteristics make it well suited for use in microcontroller-driven circuits, relay drivers, LED switching, and low-frequency oscillators.

Whether you’re building a custom Arduino project or designing a compact power control circuit, the BS170 delivers reliable performance in a tiny, easy-to-use form factor.

Specification:

• Type : N-Channel Enhancement MOSFET
• Drain-Source Voltage (Vdss) : 60V
• Continuous Drain Current (Id) : 500mA
• Gate-Source Voltage (Vgs) : ±20V
• Gate Threshold Voltage (Vgs(th)) : 0.8V – 3V
• On-State Resistance (Rds(on)) : 5Ω @ Vgs 10V
• Total Power Dissipation (Pd) : 830mW
• Package : TO-92