1N4245

Overview

The Microchip Technology 1N4245 is a standard silicon rectifier diode designed for through-hole mounting in the DO-41 (DO-204AL) axial package. It features a maximum repetitive peak reverse voltage of 200 V and an average forward rectified current rating of 1 A. The device exhibits a maximum forward voltage drop of 1.3 V at 3 A and a reverse leakage current of 1 µA at 200 V. Its junction temperature range spans from -65°C to +175°C, with a typical reverse recovery time of 5 µs.

Feature Summary

• High thermal stability supporting operation up to 175°C junction temperature
• Low leakage current characteristics suitable for precision applications
• Robust glass-passivated junction construction for reliability

Applications

• General-purpose rectification in power supplies
• Free-wheeling diodes in inductive load circuits
• Clamping and protection circuits in consumer electronics

Procurement Notes

Verify RoHS compliance status prior to procurement, as this specific component may not meet current environmental directives depending on the manufacturing lot. Confirm the exact package variant and marking codes against the latest official datasheet to ensure compatibility with automated assembly processes. Request manufacturer certification documents to validate material composition and traceability requirements for regulated industries.

Selection Notes

Select this component when a standard recovery time of approximately 5 µs is acceptable for the circuit design. Ensure the application voltage remains below the 200 V peak reverse limit under all transient conditions. Consider the 1 A continuous current rating alongside thermal management strategies to maintain junction temperatures within the specified -65°C to +175°C operational range during high-duty cycle operations.

Part Context

This part belongs to Microchip's legacy standard rectifier lineup, historically derived from military specifications such as MIL-PRF-19500/286 for qualified variants. It serves as a fundamental discrete semiconductor component for basic power conversion tasks. The product line emphasizes durability and consistent electrical performance across wide industrial temperature ranges, maintaining relevance in designs requiring proven, long-life silicon rectification solutions.

Replacement Considerations

Equivalent parts include the 1N4001 series for higher voltage ratings or the 1N540x series for increased current capacity. Verify pinout compatibility and package dimensions before substitution. Ensure replacement devices meet or exceed the original 200 V reverse voltage and 1 A forward current specifications.