BAT54S

Overview

The BAT54S is a Schottky barrier diode array manufactured by SMC Diode Solutions, housed in an SOT-523 surface-mount package. It features a common cathode configuration with two independent elements. The device supports a maximum DC reverse voltage of 30 V and an average forward rectifier current of 100 mA per diode. Key electrical characteristics include a low forward voltage of 1 V at 100 mA and a rapid reverse recovery time of 5 ns. The component operates within a junction temperature range up to 125°C and exhibits a reverse leakage current of 2 µA at 25 V.

Feature Summary

• Schottky barrier technology ensures extremely fast switching speeds with negligible reverse recovery time.
• Low forward voltage drop minimizes conduction losses during operation.
• Common cathode dual-diode configuration allows for efficient circuit integration in compact designs.

Applications

• Ultra-high-speed switching circuits
• Voltage clamping applications
• Protection circuits requiring fast response

Procurement Notes

Verify the specific manufacturer part number against official SMC Diode Solutions documentation to confirm the SOT-523 package and 100 mA rating. Ensure compatibility with RoHS3 standards if required. Confirm that the common cathode configuration matches the design requirements, as other variants in the BAT54 series may feature different internal connections or current ratings.

Selection Notes

Select this component when a small footprint SOT-523 package is required alongside Schottky speed advantages. The 100 mA current rating suits low-power signal processing tasks. Verify that the 30 V reverse voltage withstands peak circuit voltages. Consider thermal management capabilities within the limited surface mount enclosure for continuous operation scenarios.

Part Context

This component belongs to the broader BAT54 family of Schottky barrier diodes, which includes various configurations such as common anode and single diode versions. While sharing similar technological foundations, specific suffixes denote distinct pinning arrangements, current capacities, and packaging types. The BAT54S variant specifically denotes the common cathode arrangement in the SOT-523 form factor.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source data. Cross-referencing requires verifying identical electrical parameters, specifically the 30 V reverse voltage, 100 mA current rating, and SOT-523 package dimensions, along with matching common cathode topology.