onsemi

BAT54C

BAT54C Description

The BAT54C from onsemi is a Schottky diode array configured as 1 Pair Common Cathode, designed for small-signal applications with a maximum average rectified current of 200mA per diode. It features a low forward voltage drop (800mV @ 100mA) and a reverse voltage rating of 30V, making it suitable for high-efficiency switching and clamping circuits. With an ultra-fast reverse recovery time (trr) of 5ns, it minimizes switching losses in high-frequency applications. The device is housed in a compact SOT-23 surface-mount package, ideal for space-constrained designs.

BAT54C Features

• Schottky Technology: Delivers low forward voltage and fast switching, reducing power dissipation.
• Common Cathode Configuration: Simplifies circuit design in dual-diode applications.
• High-Speed Performance: 5ns reverse recovery time ensures efficiency in high-frequency circuits.
• Low Leakage Current: 2µA @ 25V enhances power efficiency in standby modes.
• Robust Packaging: SOT-23 (Tape & Reel) enables automated assembly and compact PCB layouts.
• Compliance: ROHS3, REACH Unaffected, ECCN EAR99 ensures environmental and regulatory adherence.

BAT54C Applications

• Signal Clamping & Protection: Used in ADC inputs, RF circuits, and ESD protection due to its fast response.
• Power Management: Ideal for DC-DC converters, OR-ing diodes, and reverse polarity protection.
• High-Speed Switching: Suitable for load switching, level shifting, and multiplexing in digital systems.
• Portable Electronics: Fits battery-powered devices where low Vf and compact size are critical.

Conclusion of BAT54C

The BAT54C stands out for its fast switching, low power loss, and compact form factor, making it a versatile choice for high-efficiency, high-frequency applications. While marked obsolete, its performance remains competitive for legacy designs or replacements in consumer electronics, industrial controls, and communication systems. Engineers value its reliability, compliance, and ease of integration in space-sensitive projects.