1N5803

Overview

The Microchip Technology 1N5803 is a military-qualified ultrafast recovery rectifier diode designed for high-reliability applications. It operates with a maximum repetitive peak reverse voltage of 75 V and a forward current rating of 1 A in axial packaging. The device features a fast recovery time characteristic, ensuring efficient performance in switching circuits. Manufactured under MIL-PRF-19500/477 standards, it provides robust electrical characteristics suitable for demanding environments requiring strict reliability criteria.

Feature Summary

• Military qualification compliant with MIL-PRF-19500/477 standards
• Ultrafast recovery time for high-speed switching efficiency
• Axial leaded package construction for through-hole mounting

Applications

• High-reliability power supply rectification
• Military aerospace electronic systems
• Fast recovery freewheeling diodes in DC-DC converters

Procurement Notes

Verify the specific ordering suffix (e.g., /TR) to confirm tape-and-reel packaging versus bulk availability. Confirm that the supplier source aligns with Microchip Technology or authorized distributors to ensure genuine components. Check for updated datasheet revisions to validate current manufacturing status and compliance with latest military specifications before finalizing procurement orders.

Selection Notes

Select this component when military-grade reliability and ultrafast recovery characteristics are required for 75 V applications. Ensure the circuit design accommodates the 1 A forward current limit and axial form factor. Compare against other 1N58xx series variants if higher voltage ratings or different current capacities are needed for the specific system requirements.

Part Context

This part belongs to the 1N5802-1N5804 series of ultrafast recovery rectifiers. These devices share similar structural designs but differ in voltage ratings. The 1N5803 specifically targets the 75 V range within this family, offering a balance between voltage handling and switching speed for specialized industrial and defense electronics.

Replacement Considerations

Direct substitutes include other 1N5803 variants from qualified manufacturers meeting MIL-PRF-19500/477. Verify pinout compatibility and thermal characteristics when cross-referencing with generic ultrafast diodes. Ensure replacement parts maintain the same axial package style for direct board integration.