BSS138W

Single FETs, MOSFETs Overview

The BSS138W is an N-Channel Logic Level Enhancement Mode Field Effect Transistor manufactured by onsemi. It features a compact SOT-323 surface mount package designed for low voltage and low current applications. The device provides rugged, reliable, and fast switching performance with minimized on-state resistance. Key electrical parameters include a drain-to-source voltage of 50 V, continuous drain current of 0.21 A, and maximum power dissipation of 340 mW at 25°C. The gate threshold voltage ranges from 0.8 V to 1.5 V, ensuring compatibility with logic-level drivers.

Single FETs, MOSFETs Feature Summary

• High density cell design for extremely low on-state resistance
• Compact industry standard SOT-323 surface mount package
• Rugged and reliable switching performance
• Pb-free and halide free construction

Single FETs, MOSFETs Applications

• Small servo motor control
• Power MOSFET gate drivers
• Low voltage switching applications

Single FETs, MOSFETs Procurement Notes

Verify the specific ordering suffix and packaging configuration against official documentation before procurement. Confirm that the component meets RoHS and halide-free requirements as specified in the datasheet. Ensure the supply chain source provides valid traceability and authenticity guarantees for semiconductor components.

Single FETs, MOSFETs Selection Notes

Select this component for designs requiring low voltage operation and minimal footprint. Evaluate thermal constraints carefully due to the small package size and associated thermal resistance values. Verify that the gate drive voltage aligns with the logic level characteristics to ensure optimal on-state resistance performance during operation.

Single FETs, MOSFETs Part Context

This part belongs to the BSS138 series of N-channel enhancement mode field effect transistors. It is specifically engineered for applications where space is limited and efficient switching at low voltages is required. The SOT-323 package allows for automated surface mount assembly, facilitating integration into dense printed circuit board layouts.

Single FETs, MOSFETs Replacement Considerations

Direct substitutes may include other N-channel logic level MOSFETs in SOT-323 packages with comparable voltage and current ratings. Verify pinout compatibility and electrical specifications such as RDS(on) and gate threshold voltage before substitution.