JAN1N5287-1

Current Regulation - Diodes, Transistors Overview

The JAN1N5287-1 is a current regulator diode manufactured by Microchip Technology, designed for stable current regulation across a wide voltage range. It operates within a junction temperature range of -65°C to 175°C and features a maximum peak operating voltage of 100V. The device regulates a nominal current of 400µA with a maximum limit voltage of 1V. Packaged in the DO-7 axial leaded format (DO-204AA), it is qualified under MIL-PRF-19500/463 standards for military applications.

Current Regulation - Diodes, Transistors Feature Summary

• Provides constant current regulation over a broad voltage range, serving as a functional counterpart to Zener diodes which regulate voltage.
• Features high source impedance to maintain stable current output despite variations in supply voltage or load conditions.
• Utilizes a double-plug internal bond connection within the larger DO-7 packaging to support its unique current limiting function.

Current Regulation - Diodes, Transistors Applications

• Military electronic systems requiring reliable current regulation under extreme environmental conditions.
• Circuits needing a stable bias current source where voltage fluctuations are present.
• Current limiting protection in sensitive analog signal paths.

Current Regulation - Diodes, Transistors Procurement Notes

Verify that the specific order suffix matches the required qualification level, as the base part number covers multiple grades including JAN, JANTX, JANTXV, and JANS. Confirm compliance with MIL-PRF-19500/463 specifications if military-grade performance is mandatory for the application. Ensure the DO-7 through-hole package aligns with the PCB footprint design constraints.

Current Regulation - Diodes, Transistors Selection Notes

Select this component when a precise microampere-level current source is required without complex circuitry. Compare the 400µA regulation point against other series members like the JAN1N5286-1 (330µA) or JAN1N5288-1 (429µA) to match exact circuit requirements. Consider the thermal management capabilities given the 500mW power dissipation rating and the specified operating temperature range.

Current Regulation - Diodes, Transistors Part Context

This device belongs to the popular 1N5283-1 through 1N5314-1 series of 0.5-watt current regulators produced by Microchip (formerly Microsemi). The series offers a selection of currents ranging from 0.22 mA to 4.7 mA in standard 10% tolerances, providing designers with flexible options for axial-leaded current regulation solutions.

Current Regulation - Diodes, Transistors Replacement Considerations

Parametric equivalents include commercial versions such as the 1N5287/TR. For direct replacements within the same family, consider the JAN1N5286-1 or JAN1N5288-1 if slight current adjustments are acceptable. Verify that any substitute maintains the DO-7 package and MIL-PRF-19500/463 qualification if military specs are required.