JANS1N5287-1

Current Regulation - Diodes, Transistors Overview

The JANS1N5287-1 is a current regulator diode manufactured by Microchip Technology, designed for high-reliability applications. It operates within the 1N5283-1 through 1N5314-1 series and provides a regulated current of 363 µA with a maximum power dissipation of 500 mW. The device features a maximum voltage rating of 100 V and is qualified to MIL-PRF-19500/463 standards. It utilizes a DO-7 axial leaded package suitable for through-hole mounting and supports an operating temperature range from -65°C to +175°C.

Current Regulation - Diodes, Transistors Feature Summary

• Qualified to MIL-PRF-19500/463 standards for space and defense environments
• Provides stable current regulation over a broad voltage range
• Features high source impedance for effective current limiting

Current Regulation - Diodes, Transistors Applications

• Spacecraft electronic systems requiring radiation-hardened components
• Military avionics and guidance systems
• High-reliability industrial instrumentation

Current Regulation - Diodes, Transistors Procurement Notes

Verify that the component bears the specific JANS qualification suffix, which denotes screening per MIL-PRF-19500/463 for space applications. Confirm the presence of official Microchip documentation and traceability records. Ensure the physical package matches the DO-7 specification and check for any relevant Product Change Notifications (PCNs) affecting assembly sites or materials.

Current Regulation - Diodes, Transistors Selection Notes

Select this part when a fixed current sink is required in harsh environments where standard commercial diodes may fail. Compare against other members of the 1N528x-1 series if different current levels are needed. Verify that the 500 mW power rating and 100 V breakdown voltage meet the circuit's worst-case operating conditions.

Current Regulation - Diodes, Transistors Part Context

This component belongs to the 1N5283-1 through 1N5314-1 family of current regulator diodes produced by Microchip/Microsemi. These devices serve as counterparts to Zener diodes by regulating current rather than voltage. The JANS variant represents the highest reliability tier within this lineup, specifically engineered for space-grade missions.

Current Regulation - Diodes, Transistors Replacement Considerations

Publicly confirmed substitutes include JAN1N5287-1 and JANTXV1N5287-1. Note that these variants lack the full JANS space qualification. Commercial equivalents such as CD5287 exist but do not meet military or space reliability standards.