JANTX1N5289UR-1

Current Regulation - Diodes, Transistors Overview

The JANTX1N5289UR-1 is a current regulator diode manufactured by Microchip Technology, designed for surface-mount applications. It operates within the MIL-PRF-19500/463 military series and utilizes a DO-213AB (MELF) package. The device provides a regulated current of 473 µA with a maximum peak operating voltage of 100 V and a power dissipation rating of 500 mW. It functions across an extended temperature range from -65 °C to +175 °C junction temperature. The component features a round-end SMT configuration suitable for high-reliability environments.

Current Regulation - Diodes, Transistors Feature Summary

• Military-grade reliability compliant with MIL-PRF-19500/463 specifications
• Surface-mount MELF package design for automated assembly
• Extended thermal operation capability up to 175 °C junction temperature

Current Regulation - Diodes, Transistors Applications

• Precision constant current sources in aerospace systems
• Biasing circuits for sensitive semiconductor devices
• Current limiting protection in harsh environment electronics

Current Regulation - Diodes, Transistors Procurement Notes

Verify the specific suffix UR-1 indicates the tape-and-reel or bulk packaging format as defined by the manufacturer's current documentation. Confirm RoHS status N compliance requirements against project specifications. Ensure the military qualification level matches the system reliability standards before procurement authorization.

Current Regulation - Diodes, Transistors Selection Notes

Select this component when a stable 473 µA regulation is required in space-constrained surface-mount layouts. Compare against JAN variants if lower cost is acceptable without full military screening. Verify that the 100 V breakdown voltage exceeds the maximum circuit potential under all transient conditions.

Current Regulation - Diodes, Transistors Part Context

This part belongs to the 1N5289 family of current regulator diodes produced by Microchip/Microsemi. The JANTX designation signifies enhanced screening levels beyond standard JAN parts. These devices are integral to analog signal conditioning and reference current generation in defense and industrial sectors.

Current Regulation - Diodes, Transistors Replacement Considerations

Direct substitutes include JAN1N5289UR-1 for standard military grade or 1N5289/TR for commercial axial lead equivalents. Verify pinout compatibility and thermal resistance differences when transitioning between MELF and DO-7 packages.