JANS1N5285UR-1

Current Regulation - Diodes, Transistors Overview

The JANS1N5285UR-1 is a current regulator diode manufactured by Microchip Technology, designed for surface-mount applications. It operates within the MIL-PRF-19500/463 military series and utilizes a DO-213AB (MELF) glass package. The device provides a regulated current of 279 µA with a maximum voltage rating of 100 V and a power dissipation capacity of 500 mW. It features a limit voltage of 1 V and supports an operating temperature range from -65°C to +175°C junction temperature. The component is hermetically sealed and does not comply with RoHS standards.

Current Regulation - Diodes, Transistors Feature Summary

• Hermetically sealed construction suitable for harsh environments
• Military-grade reliability under MIL-PRF-19500/463 specifications
• Surface-mount MELF package design for compact integration

Current Regulation - Diodes, Transistors Applications

• Spacecraft electronic systems requiring radiation tolerance
• Aviation instrumentation circuits demanding high thermal stability
• Defense communication equipment utilizing surface-mount technologies

Current Regulation - Diodes, Transistors Procurement Notes

Verify that the specific order includes the JANS suffix, which denotes space-grade qualification distinct from commercial or standard military variants. Confirm RoHS non-compliance status aligns with project regulatory requirements. Ensure the DO-213AB package orientation matches the PCB footprint design. Validate that the 279 µA regulation current meets the specific circuit biasing needs without external components.

Current Regulation - Diodes, Transistors Selection Notes

Select this component when a hermetically sealed, surface-mount current source is required for extreme temperature environments. The JANS designation indicates screening beyond standard JANTX levels, making it appropriate for critical aerospace missions. Compare the 279 µA output against other models in the 1N5285 series if different current values are needed. Ensure the 100 V breakdown voltage exceeds the maximum potential difference across the diode in the target application.

Current Regulation - Diodes, Transistors Part Context

This part belongs to the 1N5285 family of current regulator diodes produced by Microchip's Microsemi division. The JANS prefix specifically identifies devices screened to the most rigorous space-flight standards within the broader MIL-PRF-19500/463 catalog. It serves as the surface-mount equivalent to through-hole axial packages like the 1N5285-1, offering similar electrical performance in a compact form factor.

Current Regulation - Diodes, Transistors Replacement Considerations

JANTX1N5285UR-1 offers identical electrical characteristics but lacks the enhanced JANS space-grade screening. JANS1N5285UR is the direct leaded variant counterpart. Verify that substitute parts maintain the DO-213AB package dimensions and hermetic seal requirements for the specific mission profile.