1N4247/TR

Overview

The Microchip Technology 1N4247/TR is a standard recovery rectifier diode designed for through-hole mounting. It features an A-Package-2 axial leaded configuration with voidless hermetic sealing, qualified per MIL-PRF-19500/286. The device supports a maximum repetitive peak reverse voltage of 600 V and an average forward rectified current of 1 A. Key electrical characteristics include a maximum forward voltage of 1.3 V at 3 A, a reverse leakage current of 1 µA at 600 V, and a maximum reverse recovery time of 5 µs. It withstands a maximum surge current of 25 A and operates within a junction temperature range of -65°C to +175°C.

Feature Summary

• Voidless hermetically sealed glass construction ensuring environmental stability
• Qualified for military standards under MIL-PRF-19500/286 specifications
• Standard recovery performance suitable for general-purpose rectification

Applications

• High-reliability aerospace power supply circuits
• Military-grade electronic equipment rectification
• Industrial control systems requiring robust thermal performance

Procurement Notes

Verify the specific suffix designation against official Microchip documentation to confirm package type and qualification level. Ensure the procurement channel provides traceability to the manufacturer's quality standards. Confirm that the component meets the required MIL-PRF-19500/286 compliance for intended applications. Check for any specific handling instructions related to hermetic sealing integrity during assembly.

Selection Notes

Select this component when high reverse voltage blocking capability and moderate forward current are required in harsh environments. The axial leaded package facilitates easy insertion into printed circuit boards or chassis mounts. Consider the wide operating temperature range for applications exposed to extreme thermal conditions. Verify that the standard recovery speed aligns with the switching frequency requirements of the target circuit design.

Part Context

This part belongs to the 1N4245 through 1N4249 series of standard recovery rectifiers manufactured by Microchip Technology. These devices are characterized by their ruggedized glass passivation and hermetic sealing, distinguishing them from commercial equivalents. The series is engineered to meet stringent reliability standards for defense and aerospace sectors, offering consistent performance across the specified temperature range.

Replacement Considerations

Direct substitutes must match the 600V reverse voltage, 1A forward current, and axial package form factor. Verify that alternative components also possess hermetic sealing if military qualification is mandatory. Cross-reference pinout compatibility and thermal resistance values to ensure seamless integration without redesigning the host circuit board layout.