onsemi

BAT54A

BAT54A Description

The BAT54A from onsemi is a Schottky diode array configured as 1 Pair Common Anode, designed for high-efficiency, low-power applications. This surface-mount device features a 30V maximum reverse voltage (Vr) and a forward current (Io) of 200mA per diode, making it suitable for small-signal switching and rectification. With a low forward voltage drop (800mV @ 100mA) and ultra-fast reverse recovery time (5ns), the BAT54A minimizes power losses and enhances switching performance in high-frequency circuits. Its Schottky technology ensures superior thermal stability and low leakage current (2µA @ 25V), ideal for precision applications.

BAT54A Features

• Schottky Diode Array: 1 Pair Common Anode configuration for compact circuit design.
• High-Speed Switching: 5ns reverse recovery time for efficient high-frequency operation.
• Low Power Loss: 800mV forward voltage drop reduces energy dissipation.
• Low Leakage Current: 2µA @ 25V ensures minimal standby power consumption.
• Surface-Mount Package: SOT-23 (Tape & Reel) for automated PCB assembly.
• Wide Operating Range: 30V reverse voltage and 200mA forward current support diverse applications.
• Reliable & Obsolete-Status: REACH Unaffected and MSL 1 (Unlimited) for long-term storage stability.

BAT54A Applications

The BAT54A excels in high-frequency rectification, signal clamping, and low-voltage switching due to its fast response and low Vf. Key applications include:

• Power Management: DC-DC converters, voltage clamping, and reverse polarity protection.
• Signal Processing: RF detectors, mixers, and high-speed logic circuits.
• Portable Electronics: Battery-powered devices, where low leakage and efficiency are critical.
• Automotive & Industrial Systems: Sensor interfaces and low-power switching modules.

Conclusion of BAT54A

The BAT54A is a high-performance Schottky diode array optimized for fast switching, low power loss, and compact design. Its common-anode configuration, low leakage, and robust 30V rating make it a versatile choice for small-signal and power-efficient applications. While marked as obsolete, its REACH compliance and reliability ensure continued suitability for legacy and new designs requiring high-speed, low-voltage diode solutions. Ideal for portable, automotive, and industrial electronics, the BAT54A delivers efficiency and precision in a space-saving SOT-23 package.