BAT54S

Overview

The BAT54S is a surface-mount Schottky barrier diode array from Good-Ark Semiconductor, housed in an SOT-23 package. It features two independent diodes with a common cathode configuration. Key electrical parameters include a peak repetitive reverse voltage of 30V and a forward continuous current rating of 200mA. The device exhibits low forward voltage characteristics, reaching up to 0.8V at 100mA, and offers fast switching capabilities with a reverse recovery time of 5ns. Power dissipation is rated at 200mW, with an operating junction temperature range spanning from -50°C to +150°C.

Feature Summary

• Low forward voltage for reduced conduction losses
• Fast switching performance suitable for high-speed applications
• Integrated guard ring structure for enhanced stress protection

Applications

• High speed switching circuits
• Voltage clamping applications
• Protection circuits

Procurement Notes

Verify the specific datasheet version and manufacturer documentation when sourcing this component. Confirm that the ordering suffix corresponds to the correct internal configuration, as the BAT54 series includes variants with different pin arrangements such as common anode or series connections. Ensure compliance with RoHS directives if required by your design specifications.

Selection Notes

Select the BAT54S specifically when a common cathode dual-diode topology is required within a compact SOT-23 footprint. This model is distinct from other BAT54 variants like the BAT54C or BAT54A due to its internal wiring. Consider the 30V reverse voltage limit and 200mA current rating to ensure operation remains within safe absolute maximum ratings during circuit design.

Part Context

This component belongs to the BAT54x family of Schottky diodes manufactured by Good-Ark Semiconductor. The family includes multiple configurations such as BAT54 (series), BAT54A (series), BAT54C (common anode), and BAT54S (common cathode). All share similar physical packaging and general electrical characteristics but differ in internal connectivity to suit various circuit topologies.

Replacement Considerations

Compatible substitutes include Nexperia BAT54S, ON Semiconductor BAT54S, and Diodes Incorporated BAT54SW-7. Verify that replacement parts maintain the same SOT-23 package dimensions and common cathode configuration to ensure direct pin-to-pin compatibility without modifying the printed circuit board layout.