BS170 TRIODE 60V 500MA MOSFET TRANSISTOR TO-92

The BS170 TO-92 is a widely used, N-channel enhancement mode MOSFET housed in a compact TO-92 package. MOSFETs are voltage-controlled devices, meaning a voltage applied to the gate terminal controls the current flow between the drain and source terminals. The BS170 is known for its versatility, finding applications in both switching and amplification circuits.

Key Features of BS170 TO-92:

• • N-channel: The BS170 allows current to flow when a positive voltage is applied to the gate relative to the source.
  • Enhancement mode: The BS170 normally operates in an off state (no current flow) until a voltage is applied to the gate.
  • TO-92 package: This through-hole package makes the BS170 easy to integrate into various circuits due to its popularity and ease of soldering.
  • Switching capability: The BS170 can handle currents up to 500mA, making it suitable for switching applications like controlling LEDs or small motors.
  • Amplification: While not its primary function, the BS170 can also be used for low-signal amplification.

Technical Specifications of BS170 TO-92:

• • Drain-Source Voltage (VDs): 60V (maximum)
  • Gate-Source Voltage (VGS): ±20V (maximum)
  • Drain Current (ID): 500mA (maximum continuous, higher pulsed ratings available)
  • On-resistance (Rdson): Typically less than 8 ohms
  • Power Dissipation (PD): 830mW (maximum)
  • Operating Temperature Range: -55°C to +150°C

Mechanical Specifications of BS170 TO-92:

• • Dimensions: Refer to datasheet for specific dimensions, typically around 9mm tall and 4.5mm in diameter.
  • Weight: Very lightweight due to its small size.
  • Mounting Options: Through-hole soldering.
  • Hole Details: The TO-92 package typically has three leads for connection: Drain (D), Gate (G), and Source (S). Consult the datasheet for pinout details.

Applications of BS170 TO-92:

• • LED driver circuits: The BS170 can be used to control LEDs by regulating the current flow.
  • Relay driver circuits: It can interface with relay coils, allowing control of higher power circuits with low-power signals.
  • Logic level switching: The BS170 can be used to switch circuits based on digital logic signals.
  • Simple amplifier circuits: With proper biasing, the BS170 can be used for low-power voltage amplification.

Equivalents of BS170 TO-92:

Several functionally equivalent N-channel MOSFETs exist, such as the AO3400 or IRLML2502, though they might have slight variations in specifications. Always consult datasheets for compatibility before replacing the BS170.

Package Includes:

• • 1 x BS170 TO-92 triode transistor Kit