JANS1N5290UR-1/TR

Current Regulation - Diodes, Transistors Overview

The JANS1N5290UR-1/TR is a hermetically sealed current regulator diode manufactured by Microchip Technology. It operates within the MIL-PRF-19500/463 qualified JANS level, designed for space and high-reliability applications. The device provides a regulated current of 517 µA with a maximum reverse voltage rating of 100 V and a power dissipation capacity of 500 mW. It utilizes a DO-213AB (MELF) surface-mount package. The component features a low limit voltage of 1.05 V and is constructed using silicon technology in a glass-encapsulated LL41 form factor.

Current Regulation - Diodes, Transistors Feature Summary

• Hermetically sealed construction suitable for harsh environments
• Space-grade radiation hardness qualification under JANS standards
• Constant current regulation over a wide voltage range
• Surface-mount MELF package for automated assembly

Current Regulation - Diodes, Transistors Applications

• Spacecraft electronic systems requiring radiation tolerance
• High-reliability military instrumentation circuits
• Current limiting protection in aerospace power supplies
• Precision biasing networks in satellite communication equipment

Current Regulation - Diodes, Transistors Procurement Notes

Verify that the ordering suffix includes /TR to confirm tape-and-reel packaging, as standard JANS variants may differ in reel configuration. Confirm the presence of the JANS prefix to ensure compliance with space-grade radiation hardness requirements. Validate the manufacturer lot traceability against MIL-PRF-19500/463 specifications before integration into flight hardware.

Current Regulation - Diodes, Transistors Selection Notes

Select this component when a surface-mount current regulator with space-grade reliability is required. Ensure the circuit design accommodates the 517 µA nominal current and 100 V maximum voltage rating. Compare against JAN or JANTX levels if radiation hardness is not necessary for the specific application environment.

Current Regulation - Diodes, Transistors Part Context

This part belongs to the 1N5283-1 through 1N5314-1 series of current regulator diodes. The JANS designation indicates it meets the highest level of radiation hardness and quality control defined in MIL-PRF-19500/463, distinguishing it from commercial or standard military grades.

Current Regulation - Diodes, Transistors Replacement Considerations

JANS1N5290UR-1 is the direct equivalent without the reel suffix. JANTX1N5290UR-1 offers similar electrical performance but lacks space-grade radiation hardness. JAN1N5290-1/TR provides axial leaded packaging instead of surface mount.