JANS1N5287UR-1/TR

Current Regulation - Diodes, Transistors Overview

The JANS1N5287UR-1/TR is a silicon current regulator diode manufactured by Microchip Technology. It operates within the 1N5283-1 through 1N5314-1 series, providing a regulated current of 363 µA with a standard tolerance of 10%. The device features a maximum limiting voltage of 1 V and a maximum power dissipation of 500 mW. It is qualified to MIL-PRF-19500/463 standards for space applications (JANS). The component utilizes a DO-213AB MELF package and supports surface-mount installation.

Current Regulation - Diodes, Transistors Feature Summary

• Provides stable current regulation over a broad voltage range
• Features high source impedance for consistent performance
• Includes internal metallurgical bond connection

Current Regulation - Diodes, Transistors Applications

• Space-grade electronic circuits requiring radiation-hardened components
• Constant current sources in military avionics systems
• Current limiting protection in harsh environment electronics

Current Regulation - Diodes, Transistors Procurement Notes

Verify that the specific suffix UR-1/TR corresponds to the tape-and-reel packaging format required for automated assembly processes. Confirm that the JANS qualification level meets the specific radiation hardness requirements of the target mission profile before finalizing procurement orders.

Current Regulation - Diodes, Transistors Selection Notes

Select this component when a precise 363 µA regulation is needed in a compact surface-mount form factor. Ensure the circuit design accommodates the 500 mW power dissipation limit and the 100 V maximum operating voltage. Verify compatibility with the DO-213AB footprint during PCB layout.

Current Regulation - Diodes, Transistors Part Context

This part belongs to the 1N5283-1 through 1N5314-1 series of 0.5 watt current regulators. These devices serve as counterparts to Zener diodes by regulating current rather than voltage. The series offers various current values from 0.22 mA to 4.7 mA in axial or MELF packages.

Current Regulation - Diodes, Transistors Replacement Considerations

Equivalent parts include JAN1N5287UR-1, JANTX1N5287UR-1, and JANTXV1N5287UR-1. Note that these variants differ in radiation hardness and reliability levels compared to the JANS grade.