JANTX1N5309UR-1/TR

Current Regulation - Diodes, Transistors Overview

The JANTX1N5309UR-1/TR is a current regulator diode manufactured by Microchip Technology, designed for surface-mount applications. It operates within the MIL-PRF-19500/463 military specification series. The device provides a regulated current of 3.3 mA with a maximum anode-cathac voltage of 100 V and a power dissipation rating of 500 mW. It utilizes the DO-213AB-2 (MELF) package configuration. The component supports a junction temperature range from -55°C to +175°C. This specific variant includes a tape-and-reel packaging suffix, indicating bulk reel distribution rather than individual units.

Current Regulation - Diodes, Transistors Feature Summary

• Provides stable constant current regulation suitable for precision circuit biasing
• Constructed in a hermetically sealed glass MELF package for environmental protection
• Qualified for extended industrial and military temperature environments

Current Regulation - Diodes, Transistors Applications

• Biasing circuits for transistors and operational amplifiers
• Current limiting protection in sensitive electronic assemblies
• Reference current sources in analog signal processing systems

Current Regulation - Diodes, Transistors Procurement Notes

Verify that the trailing /TR suffix correctly indicates tape-and-reel packaging for automated assembly processes. Confirm the JAN prefix requirement aligns with specific military procurement standards. Ensure the DO-213AB footprint matches the target PCB design. Validate that the 3.3 mA regulation current meets the specific circuit requirements without external components.

Current Regulation - Diodes, Transistors Selection Notes

Select this component when a surface-mount solution is required for constant current applications. Compare against through-hole variants if board space allows for alternative form factors. Consider the 100 V breakdown voltage limit when designing high-voltage sections. Verify thermal management capabilities given the 500 mW power dissipation constraint in enclosed spaces.

Current Regulation - Diodes, Transistors Part Context

This part belongs to the 1N5309 family of current regulator diodes produced under military quality standards. The JAN designation signifies compliance with MIL-PRF-19500 specifications. The UR-1 suffix typically denotes the specific case outline and termination style. This series offers reliable performance in harsh environments where standard commercial parts may fail.

Current Regulation - Diodes, Transistors Replacement Considerations

Direct substitutes include other manufacturers' 1N5309 equivalents meeting MIL-PRF-19500 standards. Cross-reference DO-213AB packages from other suppliers for identical mechanical dimensions. Verify electrical parameters such as 3.3 mA regulation and 100 V blocking voltage match exactly before substitution.