1N5817-G

Overview

The Comchip Technology 1N5817-G is a single Schottky barrier rectifier diode designed for low voltage and high frequency applications. It features an axial DO-41 glass package with two leads. The device supports a maximum average forward rectified current of 1 A and a repetitive peak reverse voltage of 20 V. Key electrical parameters include a maximum instantaneous forward voltage of 0.45 V at 1 A, a peak forward surge current of 25 A, and a maximum reverse current of 500 uA. It operates within a junction temperature range of -65°C to +125°C.

Feature Summary

• Schottky barrier construction provides extremely fast switching speeds and negligible switching losses.
• Low forward voltage drop results in very small conduction losses and high efficiency.
• High surge capability allows handling of transient current spikes.
• Glass body construction offers protection against mechanical stress and moisture.

Applications

• Free wheeling diodes in inductive load circuits
• Polarity protection in DC power supplies
• Low voltage, high frequency inverters
• Small battery chargers

Procurement Notes

Verify the specific manufacturer datasheet for the 1N5817-G variant to confirm exact electrical tolerances and thermal characteristics. Ensure the component meets required RoHS compliance standards if applicable to the design. Cross-reference pinout and package dimensions with the target PCB footprint before integration.

Selection Notes

Select this component for circuits requiring efficient rectification at low voltages where minimal power loss is critical. The DO-41 through-hole package is suitable for general-purpose prototyping and industrial equipment. Consider the 20 V reverse voltage rating when designing for supply rails near this limit.

Part Context

This part belongs to the standard 1N581x series of Schottky rectifiers, widely used in consumer electronics and power management. The 'G' suffix typically denotes a lead-free or specific packaging variation compliant with environmental directives. It serves as a direct replacement for generic 1N5817 specifications across various manufacturers.

Replacement Considerations

Compatible substitutes include 1N5817 from other major manufacturers such as onsemi, Diodes Inc., and Micro Commercial Components. Verify that alternative parts maintain the same DO-41 package and 1 A/20 V ratings to ensure mechanical and electrical compatibility.