HBS310

Overview

The HBS310 is a high-speed Schottky barrier rectifier manufactured by SMC Diode Solutions. It features a 3A average forward current rating and a 100V repetitive peak reverse voltage capability. The device utilizes a DO-201AD (DO-4) axial leaded package, designed for surface mount or through-hole integration depending on the specific variant configuration. Key electrical parameters include a maximum forward voltage drop of 0.85V at 3A and a low reverse leakage current of 1mA at rated voltage. Operating temperatures range from -65°C to +175°C junction temperature, ensuring reliability in demanding thermal environments.

Feature Summary

• Schottky barrier construction provides ultra-fast switching speeds with minimal recovery time.
• Guard ring design offers enhanced transient protection and robustness against voltage spikes.
• Low forward voltage drop minimizes power loss and improves overall system efficiency.
• High surge current capability supports handling of temporary overloads during operation.

Applications

• Free-wheeling diodes in DC-DC converters
• Polarity protection circuits for sensitive electronics
• Low voltage, high frequency inverters
• Battery charging systems

Procurement Notes

Verify the exact package style and lead configuration when ordering, as axial variants may differ in mechanical dimensions. Confirm RoHS compliance status if environmental regulations apply to your assembly process. Cross-reference datasheet revisions to ensure parameter consistency with existing designs. Request material safety data sheets for handling procedures during manufacturing.

Selection Notes

Select this component for applications requiring fast recovery and low conduction losses at moderate voltages. Ensure the operating current remains below the 3A average limit to maintain thermal stability. Consider the 100V reverse voltage rating relative to peak line voltages in your circuit. Evaluate thermal management requirements given the 175°C junction temperature capability.

Part Context

This part belongs to SMC's HBS series of high-speed Schottky rectifiers. It complements other axial-leaded Schottky devices in the portfolio, offering a balance between current handling and switching speed. The series is commonly used in industrial power supplies and automotive electronics where reliability under harsh conditions is critical.

Replacement Considerations

Direct substitutes include the SB3100 and SS310L R3, which share similar 3A/100V ratings. Verify pinout compatibility and forward voltage characteristics before substitution. Ensure replacement parts meet the same thermal and surge current specifications for equivalent performance.