1N5298UR-1

Overview

The Microchip Technology 1N5298UR-1 is a surface-mount current regulator diode housed in the DO-213AB (MELF, LL41) glass package. It operates within a military-grade series compliant with MIL-PRF-19500/463 standards. The device provides a regulated current of 1.21 mA at a maximum voltage of 100 V and a power dissipation of 500 mW. The limiting voltage is specified at 1.4 V. This component is designed for hermetic sealing and high-reliability applications requiring stable current regulation in compact surface-mount configurations.

Feature Summary

• Hermetically sealed glass MELF package for environmental protection
• Military-grade reliability compliant with MIL-PRF-19500/463
• Stable current regulation without external biasing components

Applications

• Military aerospace electronic circuits
• High-reliability industrial control systems
• Precision current limiting in sensitive instrumentation

Procurement Notes

Verify the specific suffix UR-1 against official Microchip documentation to confirm the exact package variant and testing level. Ensure procurement channels provide valid traceability records for military-grade components. Confirm that the received parts match the hermetic seal requirements specified in the datasheet before integration into critical assemblies.

Selection Notes

Select this component when a hermetic surface-mount current regulator is required for military or high-reliability environments. Compare the 1.21 mA regulation current and 100 V breakdown voltage against circuit requirements. Consider the DO-213AB footprint constraints and thermal dissipation limits of 500 mW during layout design.

Part Context

This part belongs to the 1N5298 family of current regulator diodes manufactured by Microchip Technology. Variants such as JANTX1N5298UR-1 and JAN1N5298UR-1 exist with similar electrical characteristics but may differ in screening levels or packaging details. The base 1N5298 designation defines the core electrical performance profile across through-hole and surface-mount implementations.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Verify compatibility with existing designs by matching the 1.21 mA current, 100 V rating, and DO-213AB package dimensions before considering alternative manufacturers.