BAT54CW

Overview

The BAT54CW is a dual common cathode Schottky barrier diode array manufactured by SMC Diode Solutions. It features a 30V DC reverse voltage rating and supports an average forward current of 200mA per diode. The device exhibits a low forward voltage drop of 1V at 100mA and a maximum reverse leakage current of 2µA at 25V. Packaged in the compact SOT-523 surface-mount format, it operates within a junction temperature range of -65°C to +125°C.

Feature Summary

• Dual common cathode configuration for board space efficiency
• Ultra-fast switching speed with negligible reverse recovery time
• Low forward voltage drop for reduced conduction losses
• PN junction guard ring structure for enhanced stress protection

Applications

• High-speed signal rectification
• Voltage clamping circuits
• Reverse polarity protection
• Blocking diodes in power paths

Procurement Notes

Verify the specific manufacturer designation when sourcing, as the BAT54CW part number is widely utilized across multiple semiconductor producers including Diodes Inc., Nexperia, and Galaxy Microelectronics. Confirm that the component matches the required SOT-523 package dimensions and electrical characteristics defined in the official datasheet before finalizing procurement orders.

Selection Notes

Select this component for applications requiring rapid switching speeds and minimal forward voltage loss in tight spaces. The dual common cathode arrangement simplifies circuit design for clamping or logic functions. Ensure the operating environment remains within the specified thermal limits and that the 30V reverse voltage rating exceeds the peak inverse voltage present in the target application.

Part Context

This device belongs to the broader BAT54 series of small-signal Schottky diodes. While the core electrical specifications remain consistent across variants like BAT54A or BAT54S, differences exist in internal pin configurations and specific packaging types such as SOT-23 or SC-70. The BAT54CW specifically utilizes the SOT-523 footprint.

Replacement Considerations

Direct substitutes include BAT54A (common anode variant) and BAT54S (different pinout). Cross-referencing with equivalent parts from other manufacturers requires verifying identical package geometry and electrical ratings.