JAN1N5291-1

Current Regulation - Diodes, Transistors Overview

The JAN1N5291-1 is a current regulator diode manufactured by Microchip Technology, designed for stable current regulation in electronic circuits. It operates within a temperature range of -65°C to +175°C and is qualified under MIL-PRF-19500/463 standards. The device features a maximum voltage rating of 100V and a power dissipation capacity of 500mW. It regulates current at approximately 616µA with a typical clamp voltage of 1.05V. The component is housed in a DO-7 axial leaded package, suitable for through-hole mounting.

Current Regulation - Diodes, Transistors Feature Summary

• Provides constant current regulation over a broad voltage range
• Qualified for military applications per MIL-PRF-19500/463
• Features double-plug internal bond connection for reliability

Current Regulation - Diodes, Transistors Applications

• Current limiting in sensitive electronic circuits
• Biasing elements for transistors and integrated circuits
• Replacement for Zener diodes in current-regulated designs

Current Regulation - Diodes, Transistors Procurement Notes

Verify the specific suffix and qualification level when ordering, as military-grade parts may have distinct handling requirements. Confirm that the DO-7 package matches your PCB footprint. Ensure compliance with relevant export control regulations if applicable. Check for recent production change notices regarding assembly sites or packaging labels before finalizing procurement.

Current Regulation - Diodes, Transistors Selection Notes

Select this component when a stable low-current source is required across varying voltage conditions. The wide operating temperature range makes it suitable for harsh environments. Compare its 616µA regulation point against circuit requirements to ensure proper biasing. Consider the 500mW power dissipation limit when designing thermal management strategies for the application.

Current Regulation - Diodes, Transistors Part Context

This part belongs to the 1N5283-1 through 1N5314-1 series of 0.5-watt current regulators produced by Microchip. These devices offer a selection of currents from 0.22 mA to 4.7 mA in standard tolerances. They serve as counterparts to Zener diodes, regulating current rather than voltage, while maintaining similar physical dimensions in axial-leaded packages.

Current Regulation - Diodes, Transistors Replacement Considerations

Check parametric equivalents such as other 1N52xx series variants if exact current matching is flexible. Verify pinout compatibility for direct replacement in existing assemblies. Ensure substitute components meet the same MIL-PRF-19500/463 qualification if military reliability is required.