1N5286UR-1

Overview

The Microchip Technology 1N5286UR-1 is a current regulator diode designed for surface-mount applications. It utilizes the DO-213AB MELF glass package, providing a compact form factor suitable for automated assembly processes. The device operates within a military-grade temperature range of -65°C to +175°C TJ and complies with MIL-PRF-19500/463 standards. Key electrical parameters include a maximum peak operating voltage of 100V, a maximum regulator current of 330µA, and a maximum power dissipation of 500mW. The component features a maximum limit voltage of 1V and maintains a minimum dynamic impedance of 25 mOhms.

Feature Summary

• Maintains stable current regulation across varying load conditions
• Operates reliably in extreme high and low temperature environments
• Utilizes hermetically sealed glass encapsulation for durability

Applications

• Military electronic systems requiring radiation-hardened components
• Precision constant current biasing circuits
• High-reliability industrial instrumentation

Procurement Notes

Verify that the specific ordering suffix matches the required qualification level, as military variants often carry distinct suffixes indicating compliance with MIL-PRF-19500/463. Confirm the package type corresponds to the DO-213AB MELF specification. Ensure all procurement documentation includes proper traceability records and material declarations required for defense or aerospace contracts.

Selection Notes

Select this component when a surface-mount solution is required for high-temperature current regulation. Compare the 330µA current rating against circuit requirements to ensure adequate headroom. Evaluate the 100V peak voltage limit against potential transient spikes in the application environment to prevent device breakdown during operation.

Part Context

This part belongs to the 1N5286 series of current regulator diodes manufactured by Microchip Technology. The UR-1 designation typically indicates a specific packaging and qualification variant within the broader family. These devices are engineered for high-reliability applications where consistent current flow is critical despite fluctuations in supply voltage or temperature.

Replacement Considerations

Direct substitutes include JAN1N5286UR-1 and JANTXV1N5286UR-1 from Microchip. Verify that any replacement maintains the same DO-213AB MELF footprint and meets the identical MIL-PRF-19500/463 qualification standards.