JANTX1N5303UR-1

Current Regulation - Diodes, Transistors Overview

The JANTX1N5303UR-1 is a current regulator diode manufactured by Microchip Technology, designed for military and aerospace applications. It operates in the Surface Mount Technology (SMT) format within a DO-213AB MELF glass package. The device provides a regulated current of 1.76 mA with a maximum peak operating voltage of 100 V and a power dissipation rating of 475 mW. It features a minimum dynamic impedance of 420 uOhms and functions reliably across an extended temperature range from -55 °C to +175 °C.

Current Regulation - Diodes, Transistors Feature Summary

• Provides stable constant current regulation suitable for precision circuit biasing
• Constructed with hermetic sealed glass MELF packaging for environmental resilience
• Engineered for high-temperature operation up to 175 °C junction temperature
• Complies with MIL-PRF-19500/463 quality standards for ruggedized electronics

Current Regulation - Diodes, Transistors Applications

• Biasing circuits in military-grade semiconductor systems
• Current limiting protection in aerospace electronic assemblies
• Precision reference current sources in harsh environment instrumentation

Current Regulation - Diodes, Transistors Procurement Notes

Verify the specific suffix UR-1 indicates the reel packaging configuration as documented in official Microchip datasheets. Confirm that the JAN prefix denotes qualification to MIL-PRF-19500/463 specifications. Ensure procurement channels provide traceability documentation required for defense and aerospace supply chains. Validate RoHS exemption status prior to integration into compliant assemblies.

Current Regulation - Diodes, Transistors Selection Notes

Select this component when a fixed 1.76 mA regulation is required in a surface-mount form factor. Compare against through-hole equivalents if board space constraints allow. Verify that the 100 V breakdown voltage exceeds the maximum circuit potential. Consider the thermal management requirements associated with the 475 mW power dissipation limit in enclosed enclosures.

Current Regulation - Diodes, Transistors Part Context

This part belongs to the 1N530x series of current regulator diodes produced under the Microchip Military brand. The JAN designation signifies adherence to strict military reliability standards. The UR-1 suffix typically identifies the tape and reel packaging variant, distinguishing it from bulk or other shipping configurations within the same electrical specification family.

Current Regulation - Diodes, Transistors Replacement Considerations

Direct substitutes include other JAN1N5303 variants with compatible packaging. Cross-reference JANTXV1N5303UR-1 for higher reliability grades. Verify pinout compatibility with DO-213AB footprints before substitution.