BAT54WFILM

Single Diodes Overview

The BAT54WFILM is a Schottky barrier diode manufactured by STMicroelectronics, designed for automotive applications with AEC-Q101 qualification. It features a 40 V reverse voltage rating and a 300 mA average forward current capability. The device utilizes a compact SOT-323 (SC-70) surface-mount package to minimize footprint. Key electrical characteristics include a low forward voltage drop of 900 mV at 100 mA and a maximum non-repetitive peak forward surge current of 1 A. Operating temperatures range from -40 °C to +150 °C junction temperature.

Single Diodes Feature Summary

• AEC-Q101 qualified for automotive reliability standards
• Low conduction losses due to low forward voltage drop
• Negligible switching losses with fast recovery characteristics
• Compact surface-mount packaging for space-constrained designs

Single Diodes Applications

• Automotive signal rectification circuits
• Power supply output rectification
• Free-wheeling diodes in inductive load protection
• Clamping diodes for ESD protection

Single Diodes Procurement Notes

Verify the specific suffix 'FILM' against the official STMicroelectronics datasheet to confirm the exact pinout configuration and package variant. Ensure the component meets the required AEC-Q101 grade if used in automotive systems. Cross-reference the ordering code with the manufacturer's latest documentation to avoid obsolete or discontinued variants.

Single Diodes Selection Notes

Select this component when a small-footprint Schottky diode with automotive qualification is required. The 40 V rating suits low-voltage DC systems, while the 300 mA current capacity supports moderate signal loads. Consider the SOT-323 package constraints for PCB layout and thermal management requirements compared to larger packages.

Single Diodes Part Context

The BAT54 series comprises general-purpose Schottky diodes available in various configurations including single, dual common cathode, and dual common anode setups. The BAT54WFILM specifically denotes a variant within this family, optimized for surface-mount technology. The series is characterized by low capacitance and high-speed switching capabilities suitable for RF and digital logic interfaces.

Single Diodes Replacement Considerations

Check for direct cross-references such as BAT54W or BAT54S depending on the specific internal configuration (common cathode vs. common anode). Verify that any substitute maintains the same AEC-Q101 qualification and SOT-323 package dimensions to ensure mechanical compatibility.