1N4689C/TR

Overview

The Microchip Technology 1N4689C/TR is a general-purpose silicon rectifier diode designed for low-voltage, high-current applications. It features a maximum average forward rectified current of 1.0 A and a peak repetitive reverse voltage rating of 50 V. The device utilizes a DO-204AC (DO-15) axial-leaded package, providing robust mechanical stability for through-hole mounting. Key electrical characteristics include a maximum DC reverse leakage current of 5.0 µA at rated voltage and a maximum forward voltage drop of 1.1 V at full load current. The junction temperature range extends from -65°C to +175°C, ensuring reliable operation in demanding thermal environments.

Feature Summary

• High surge current capability for transient protection
• Low forward voltage drop for improved efficiency
• Wide operating junction temperature range

Applications

• General-purpose rectification in power supplies
• Free-wheeling diodes in inductive loads
• Clamping diodes in logic circuits

Procurement Notes

Verify the specific suffix 'TR' indicates tape-and-reel packaging when ordering. Confirm the manufacturer's datasheet revision matches the required specifications. Ensure the DO-204AC package dimensions align with the PCB footprint design. Check for RoHS compliance status if environmental regulations apply to the final assembly.

Selection Notes

Select this component when a standard 1A rectifier with a 50V reverse voltage rating is required. Consider the thermal resistance and mounting orientation for heat dissipation. Evaluate the forward voltage drop against system efficiency requirements. Compare alternative packages if space constraints differ from the axial leaded form factor.

Part Context

This part belongs to Microchip's legacy rectifier diode family, originally derived from ON Semiconductor product lines. The 1N4689 series is widely recognized for its reliability in industrial and consumer electronics. The 'C' designation typically denotes specific testing criteria or binning within the series. The TR suffix specifies the reel packaging format for automated assembly processes.

Replacement Considerations

Direct substitutes include the 1N4689B and 1N4689D, which share identical electrical ratings but may differ in packaging or specific test parameters. Verify pinout compatibility and thermal characteristics before substitution. Cross-reference with other manufacturers offering equivalent 1A/50V rectifiers.