BAT54SWFILMY

Overview

The BAT54SWFILMY is an automotive-grade small signal Schottky diode manufactured by STMicroelectronics. It features a dual common cathode configuration housed in a compact SOT-23 surface-mount package. The device is rated for a maximum repetitive reverse voltage of 40V and supports an average forward rectified current of 300mA per diode. Key electrical specifications include a maximum forward voltage of 900mV at 100mA and a low reverse leakage current of 1µA at 30V. It operates within a junction temperature range of -40°C to +150°C and complies with AEC-Q101 standards.

Feature Summary

• Automotive qualification compliant with AEC-Q101 standards for reliability
• Dual common cathode Schottky barrier technology for efficient signal processing
• Low forward voltage drop and negligible switching losses for energy efficiency
• Compact SOT-23 surface-mount packaging suitable for high-density layouts

Applications

• Automotive logic level shifting and signal protection circuits
• High-speed switching applications requiring minimal reverse recovery time
• Power supply output rectification in low-voltage automotive systems
• Clamping and demodulation in RF and communication modules

Procurement Notes

Verify the specific suffix 'Y' against official STMicroelectronics documentation to confirm if it denotes a distinct tape-and-reel packaging variant or specific marking code, as standard datasheets may list the base part number without this suffix. Ensure the component meets AEC-Q101 requirements for your target automotive application by cross-referencing the latest product change notices and quality certificates provided by the manufacturer.

Selection Notes

Select this component when designing for automotive environments requiring robust Schottky performance in a minimal footprint. The 40V rating and 300mA current capacity make it suitable for general-purpose signal handling. Consider the SOT-23 package constraints for thermal management and PCB space. Verify compatibility with automated assembly processes given the reel packaging indicated by the suffix.

Part Context

This part belongs to the BAT54 series of general-purpose small signal Schottky diodes from STMicroelectronics. The series is characterized by low conduction losses and extremely fast switching speeds. The 'SW' designation typically indicates the automotive grade version, while 'FILM' refers to the specific plastic encapsulation material used in the SOT-23 package construction.

Replacement Considerations

BAT54SW

FAQ

What is the maximum operating junction temperature for the BAT54SWFILMY?

The maximum operating junction temperature is +150°C.

Does the BAT54SWFILMY meet automotive reliability standards?

Yes, it is qualified according to the AEC-Q101 standard for automotive applications.

What is the internal configuration of the BAT54SWFILMY?

It contains two Schottky diodes connected in a common cathode configuration.