ASD101BW-HF

Overview

The ASD101BW-HF is a Schottky barrier rectifier manufactured by Comchip Technology, designed for surface-mount applications. It features a unidirectional configuration with a maximum repetitive peak reverse voltage of 50V and an average forward rectified current rating of 70mA. The device utilizes a SOD-123 package to facilitate compact circuit board layouts. Key electrical characteristics include a low forward voltage drop to minimize power loss and high surge current capability for transient protection. It operates within a junction temperature range of -65°C to +175°C, ensuring reliability in demanding thermal environments.

Feature Summary

• Schottky barrier construction enables fast switching speeds and minimal reverse recovery time.
• Low forward voltage drop reduces conduction losses and improves overall system efficiency.
• High surge current capability provides robust protection against transient overcurrent events.
• Plastic encapsulation meets UL flammability classification standards for safety compliance.

Applications

• Power supply input rectification
• Freewheeling diodes in DC-DC converters
• Polarity protection circuits
• Clamping diodes in logic interfaces

Procurement Notes

Verify the specific suffix 'BW' confirms the SOD-123 tape-and-reel packaging format required for automated assembly processes. Confirm RoHS compliance status through the manufacturer's latest declaration, as environmental certifications may vary by production batch. Ensure the ordering quantity aligns with standard reel sizes to avoid partial reel handling issues during manufacturing.

Selection Notes

Select this component when a low-voltage, low-current rectification solution is required with strict space constraints. The SOD-123 package offers a smaller footprint compared to axial leads while maintaining adequate current handling for signal-level applications. Consider the 50V reverse voltage rating to ensure sufficient margin above the maximum operating voltage in the target circuit design.

Part Context

This part belongs to Comchip Technology's ASD series of small-signal Schottky diodes. The series is engineered for general-purpose rectification where speed and low forward voltage are critical. The ASD101BW-HF specifically targets applications requiring reliable performance in compact consumer electronics and industrial control modules.

Replacement Considerations

Direct substitutes must match the 50V reverse voltage, 70mA forward current, and SOD-123 package dimensions. Verify that alternative Schottky diodes offer comparable forward voltage drops and reverse leakage currents to maintain circuit performance equivalence without redesigning the PCB layout.