1N5292UR-1

Overview

The Microchip Technology 1N5292UR-1 is a current regulator diode designed for surface-mount applications. It operates within the DO-213AB-2 package, also known as MELF (LL41). The device provides a regulated current of 682 µA with a maximum reverse voltage rating of 100 V and a power dissipation capacity of 475 mW. It features high source impedance characteristics suitable for stable current regulation. The component is manufactured by Microchip/Microsemi and is classified under current regulator diodes.

Feature Summary

• High source impedance design ensures stable current regulation across varying load conditions.
• Round-end SMT construction in DO-213AB-2 package facilitates automated surface-mount assembly.
• Hermetically sealed glass encapsulation provides environmental protection and reliability.

Applications

• Constant current sources for LED biasing circuits
• Current limiting protection in sensitive electronic loads
• Reference current generation in analog signal processing

Procurement Notes

Verify the specific ordering suffix to confirm package type and tape/reel configuration. Ensure compatibility with RoHS directives if required by the end application. Confirm lead times due to potential long production cycles associated with specialized semiconductor components. Validate datasheet revisions for any updates to electrical characteristics or mechanical dimensions before finalizing procurement.

Selection Notes

Select this component when a fixed current of approximately 682 µA is required in a compact surface-mount form factor. Consider the 100 V maximum reverse voltage limit for circuit design constraints. Evaluate thermal management requirements given the 475 mW power dissipation rating. Compare against through-hole alternatives like the 1N5291 if PCB space allows for larger packages.

Part Context

This part belongs to the 1N529x series of current regulator diodes produced by Microchip Technology. It shares functional similarities with other members of the family but differs in specific current ratings and package options. The UR-1 suffix typically denotes a specific variant within the Microsemi/Microchip lineup, often associated with military or high-reliability specifications depending on the full part number prefix.

Replacement Considerations

Direct substitutes may include other 1N5292 variants from different manufacturers if pinout and electrical parameters match exactly. Verify that alternative parts meet the same DO-213AB-2 footprint and hermetic sealing requirements. Cross-reference with JAN1N5292UR-1 or JANTX1N5292UR-1 for enhanced reliability grades if applicable.