Onsemi BSS138K N-Channel MOSFET 50V 220mA SOT-23 Surface Mount

Onsemi BSS138K N-Channel MOSFET 50V 220mA is a logic level enhancement mode field effect transistor in a compact SOT-23 surface mount package, suited to power management and switching circuits.

Overview

The Onsemi BSS138K is an N-channel logic level enhancement mode Field Effect Transistor engineered for efficient power management in modern electronic circuits. It offers a drain-source voltage (Vds) of 50V and a continuous drain current (Id) of 220mA, making it suitable for a range of medium-power switching and amplification tasks. The drain-source on-state resistance is rated at 1.6Ω with an Rds(on) test voltage of 5V.

Key Features

• Low input capacitance and low on-state resistance for efficient switching
• Low gate threshold voltage, with a maximum gate-source threshold voltage of 600mV
• Compatible with 3.3V and 5V logic levels for direct interfacing with low-voltage logic circuits
• Fast switching speed for high-frequency applications
• Low input and output leakage
• Maximum power dissipation of 350mW
• Operating temperature of up to 150°C

Package

The transistor is housed in a compact SOT-23 package and is designed for surface mounting. This makes it well suited to space-constrained PCB designs where board area is limited.

Specifications

• Channel Type: N Channel
• Drain Source Voltage (Vds): 50V
• Continuous Drain Current (Id): 220mA
• Drain Source On State Resistance: 1.6Ω
• Rds(on) Test Voltage: 5V
• Transistor Case Style: SOT-23
• Transistor Mounting: Surface Mount

Choose the Onsemi BSS138K N-Channel MOSFET when you need a compact, logic level switching transistor for space-constrained PCB designs that operate with 3.3V or 5V logic.