BAT54SW

Overview

The BAT54SW is a small signal Schottky diode manufactured by Diotec Semiconductor in the SOT-323-3 surface-mount package. It features a dual series configuration with a maximum repetitive peak reverse voltage of 30 V and an average forward current rating of 200 mA. The device exhibits a low forward voltage drop, reaching up to 1000 mV at 100 mA, and maintains a maximum reverse leakage current of 3 µA at 30 V. Key electrical characteristics include a peak forward surge current of 600 mA, a maximum junction capacitance of 10 pF, and a reverse recovery time under 5 ns. The component operates within a junction temperature range of -55°C to +150°C.

Feature Summary

• Dual series Schottky barrier rectifier design for efficient signal processing
• Low forward voltage drop characteristics suitable for high-speed switching
• Ultra-fast reverse recovery performance minimizing switching losses
• Compact SOT-323-3 footprint optimized for dense surface-mount layouts

Applications

• High-speed switching circuits
• Signal detection and demodulation
• Clamping and protection applications
• Logic level shifting interfaces

Procurement Notes

Verify the specific manufacturer part number against official datasheets to confirm exact electrical tolerances and packaging specifications. Ensure compliance with RoHS directives and confirm the required moisture sensitivity level for your assembly process. Cross-reference thermal resistance values with your board layout copper pad dimensions to validate power dissipation capabilities under operating conditions.

Selection Notes

Select this component when a low-capacitance Schottky diode is required for high-frequency signal paths. The dual series configuration allows for compact designs compared to discrete single-diode solutions. Evaluate the forward voltage requirements at your specific operating current to ensure compatibility with downstream logic levels or power constraints.

Part Context

This component belongs to the BAT54W family of small signal Schottky diodes produced by Diotec Semiconductor. The family includes variants such as BAT54AW and BAT54CW, which share similar physical footprints but may differ in specific forward voltage or leakage characteristics. These devices are standard commercial-grade components designed for general-purpose electronic applications.

Replacement Considerations

BAT54S-AQ

FAQ

What is the maximum junction capacitance of the BAT54SW?

The maximum junction capacitance is specified as 10 pF at 0 V reverse bias and 1 MHz frequency.

How does the reverse recovery time affect performance?

The reverse recovery time is less than 5 ns, enabling the device to operate effectively in high-speed switching applications with minimal delay.

What is the thermal resistance of the device?

The typical thermal resistance from junction to ambient is 620 K/W when mounted on a printed circuit board with 3 mm² copper pads at each terminal.