BAT54S-HF

Overview

The BAT54S-HF is a dual Schottky barrier diode manufactured by Comchip Technology, housed in an SOT-323 surface-mount package. It features a series-connected configuration with a center tap. The device supports a maximum repetitive peak reverse voltage of 30V and an average forward rectified current of 200mA. Key electrical characteristics include a maximum forward voltage of 1V at 100mA and a maximum reverse current of 200µA. The component operates within a junction temperature range of -55°C to +175°C.

Feature Summary

• Dual Schottky barrier diodes integrated into a single compact surface-mount package
• Series-connected internal configuration with a common center tap terminal
• High thermal stability supporting extended operating temperatures up to 175°C

Applications

• Ultra-high-speed switching circuits
• Voltage clamping applications
• Protection circuits for sensitive components

Procurement Notes

Verify the specific manufacturer designation when sourcing, as multiple vendors produce this standard part number. Confirm RoHS compliance status and ensure the package matches the required SOT-323 footprint. Cross-reference datasheets from different suppliers to validate electrical tolerances before final integration.

Selection Notes

Select this component for designs requiring low forward voltage drop and fast switching speeds in space-constrained layouts. The dual configuration allows for efficient implementation of bridge rectifiers or logic gates using a single package. Ensure the 30V reverse voltage rating exceeds the circuit's peak inverse voltage requirements.

Part Context

This component belongs to the family of small-signal Schottky diodes designed for high-frequency applications. It utilizes silicon planar technology encapsulated in a plastic surface-mount case. The series connection provides versatility for various signal processing tasks while maintaining a minimal physical profile suitable for dense PCB assemblies.

Replacement Considerations

The BAT54S-G is a functionally equivalent alternative offered by the same manufacturer. Other compatible replacements include the BAT54S from ON Semiconductor and the CDBV3-54S-HF from Comchip Technology, provided pinouts and electrical ratings align with the design specifications.