1N6702

Overview

The Microchip Technology 1N6702 is a Schottky barrier rectifier designed for surface-mount applications. It features a maximum repetitive peak reverse voltage of 30V and an average forward rectified current rating of 5A. The device utilizes a D-5C (SQ-MELF, C) package to facilitate compact circuit board layouts. Key electrical characteristics include a low forward voltage drop of approximately 470mV at full load current and a maximum reverse leakage current of 200µA at rated voltage. The component supports a wide operating junction temperature range from -65°C to 125°C, ensuring reliability in demanding thermal environments.

Feature Summary

• Schottky barrier construction for high switching efficiency
• Surface-mount D-5C package for space-constrained designs
• High surge current capability for robust protection

Applications

• DC-DC converter output rectification
• Free-wheeling diodes in power supplies
• Reverse polarity protection circuits

Procurement Notes

Verify the specific suffix codes on the ordering information to confirm the exact package variant and tape-and-reel specifications required for your assembly line. Ensure that the procurement documentation explicitly states compliance with relevant environmental directives if RoHS status is critical for your manufacturing process. Cross-reference the manufacturer's latest datasheet revision to confirm any updates to mechanical dimensions or testing standards before finalizing the bill of materials.

Selection Notes

Select this component when a low forward voltage drop is prioritized over ultra-low reverse leakage current compared to standard silicon PN junction diodes. The 5A current rating makes it suitable for medium-power applications where heat dissipation must be managed within the small SQ-MELF footprint. Consider the 30V reverse voltage limit carefully to ensure adequate headroom against transient voltage spikes in the target power rail.

Part Context

The 1N6702 belongs to the 1N6700 series of axial and surface-mount Schottky rectifiers manufactured by Microchip Technology. This series is engineered to replace traditional through-hole glass-passivated diodes in modern surface-mount technology (SMT) production lines. The D-5C package variant provides a direct footprint-compatible alternative for designs previously utilizing larger axial components, allowing for denser PCB layouts without compromising current handling capabilities.

Replacement Considerations

Direct pin-for-pin replacements may include other manufacturers' 5A Schottky diodes in D-5C packages, such as those from Vishay or ON Semiconductor. Verify that substitute parts meet or exceed the 30V reverse voltage and 5A average current ratings. Always validate thermal performance and forward voltage characteristics of potential substitutes against the original Microchip specification sheet.