BSS138-HF

Single FETs, MOSFETs Overview

The BSS138-HF is an N-channel enhancement mode field effect transistor manufactured by Comchip Technology. It utilizes DMOS technology to achieve low on-state resistance and fast switching performance. The device features a maximum drain-source voltage of 50V and a continuous drain current of 220mA at 25°C. The gate-source threshold voltage is specified at 1.5V with a test current of 1mA. At a gate-source voltage of 10V and a drain current of 220mA, the maximum drain-source on-resistance is 3.5Ω. The component operates within a temperature range of -55°C to +150°C and is housed in a SOT-23 surface mount package.

Single FETs, MOSFETs Feature Summary

• N-channel enhancement mode construction using DMOS technology
• Logic level compatibility for direct drive from standard logic circuits
• Compact industry-standard SOT-23 surface mount package design

Single FETs, MOSFETs Applications

• Small servo motor control
• Power MOSFET gate drivers
• General switching applications

Single FETs, MOSFETs Procurement Notes

Verify the specific datasheet revision and manufacturer documentation for the BSS138-HF to confirm exact electrical limits and thermal characteristics. Ensure the ordering information matches the required package style and tape-and-reel specifications. Cross-reference the part number with official Comchip Technology records to validate authenticity and compliance with relevant standards before finalizing procurement decisions.

Single FETs, MOSFETs Selection Notes

Select this component for low-voltage, low-current applications requiring efficient switching. The logic-level gate drive capability allows integration with standard digital outputs. Consider the thermal dissipation requirements relative to the ambient operating conditions. Verify that the 50V breakdown voltage and 220mA current rating exceed the circuit's peak operational demands.

Single FETs, MOSFETs Part Context

This component belongs to the family of small-signal N-channel MOSFETs designed for general-purpose switching. It serves as a compact alternative to larger discrete transistors in space-constrained designs. The BSS138-HF variant specifically denotes the Halogen-free status of the manufacturing process, aligning with environmental compliance requirements for modern electronic assemblies.

Single FETs, MOSFETs Replacement Considerations

Direct replacements include BSS138 variants from manufacturers such as Diodes Incorporated, Nexperia, and Fairchild Semiconductor. Verify pinout compatibility and ensure that the substitute part meets or exceeds the original 50V Vdss and 3.5Ω Rds(on) specifications.