JANS1N5314UR-1

Current Regulation - Diodes, Transistors Overview

The JANS1N5314UR-1 is a hermetically sealed current regulator diode manufactured by Microchip Technology. It operates within the MIL-PRF-19500/463 qualified series, providing a regulated current of 4.7 mA with a standard tolerance of 10%. The device features a maximum reverse voltage rating of 100 V and a power dissipation capacity of 500 mW. It utilizes a DO-213AB (MELF) glass package designed for surface mount applications. The component is constructed from silicon and supports an operating junction temperature range from -65°C to 175°C.

Current Regulation - Diodes, Transistors Feature Summary

• Hermetic sealing in a glass MELF package ensures environmental protection and reliability for harsh conditions.
• Provides stable current regulation over a broad voltage range, functioning as a counterpart to Zener diodes.
• Qualified to military standards including JAN, JANTX, JANTXV, and JANS levels for high-reliability requirements.

Current Regulation - Diodes, Transistors Applications

• Current limiting circuits in aerospace and defense systems
• Biasing elements for transistors and active components
• Constant current sources in precision instrumentation

Current Regulation - Diodes, Transistors Procurement Notes

Verify the specific qualification level required for the application, as the JANS suffix denotes the highest reliability tier within the MIL-PRF-19500/463 family. Confirm that the DO-213AB surface mount footprint matches the design layout. Ensure compliance with export control classifications such as EAR99 if applicable to the destination region.

Current Regulation - Diodes, Transistors Selection Notes

Select this component when a fixed current source is needed across a wide voltage span rather than a fixed voltage reference. Compare the 4.7 mA output against other series members like the 1N5313 or 1N5315 if different current values are suitable. Verify that the 500 mW power rating accommodates the maximum voltage drop expected in the circuit.

Current Regulation - Diodes, Transistors Part Context

This part belongs to the popular 1N5283-1 through 1N5314-1 series of 0.5 watt current regulators. The series offers a selection of currents ranging from 0.22 mA to 4.7 mA. While axial-leaded versions exist, the UR-1 suffix indicates the surface mount MELF variant, which maintains similar electrical characteristics to the traditional through-hole counterparts.

Current Regulation - Diodes, Transistors Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Equivalent devices must be sourced based on matching electrical parameters: 4.7 mA current, 100 V max voltage, 500 mW power, and DO-213AB package.