1N5286-1

Overview

The JAN1N5286-1 is a silicon current regulator diode manufactured by Microchip Technology, designed for military applications under MIL-PRF-19500/463. It operates in the DO-7 (DO-204AA) axial through-hole package. Key electrical parameters include a maximum anode-to-cathode voltage of 100V and a regulated current of 330µA. The device has a maximum power dissipation of 500mW and a maximum limiting voltage of 1V. It supports a junction temperature range from -65°C to 175°C.

Feature Summary

• Military-grade reliability compliant with MIL-PRF-19500/463 standards
• Constant current regulation capability for stable circuit operation
• Wide operating temperature range suitable for harsh environments

Applications

• Current limiting in sensitive electronic circuits
• Biasing elements for transistor amplifiers
• Active load implementations in test equipment

Procurement Notes

Verify that the specific part number includes the JAN prefix to ensure compliance with the required military qualification standard. Confirm the package type matches the design requirements, as surface mount variants exist within the same family but differ physically. Ensure the supplier provides appropriate documentation for defense or aerospace procurement channels.

Selection Notes

Select this component when a precise microampere-level constant current source is required in a through-hole configuration. Compare the 330µA rating against circuit needs; if different currents are needed, consider other members of the 1N528x series. Verify that the 100V breakdown voltage exceeds the maximum expected reverse voltage in the application.

Part Context

This device belongs to the 1N528x series of current regulator diodes produced by Microchip Technology. The series offers various fixed current values ranging from approximately 240µA to over 400µA. The JAN variant specifically denotes military-grade screening and quality control, distinguishing it from commercial equivalents.

Replacement Considerations

Direct substitutes include other JAN1N5286-1 units from authorized distributors. For non-military applications, commercial grade 1N5286 devices may be considered if environmental ratings allow. Surface mount replacements like JAN1N5286UR-1 require PCB redesign due to package differences.