JANTXV1N5313UR-1/TR

Overview

The JANTXV1N5313UR-1/TR is a surface-mount current regulator diode manufactured by Microchip Technology. It operates within the MIL-PRF-19500/463 qualified series, providing stable current regulation in a DO-213AB (MELF) glass package. The device regulates current at 4.73 mA with a maximum voltage rating of 100 V and a power dissipation of 500 mW. It features high source impedance and internal metallurgical bonding for reliability in harsh environments.

Feature Summary

• Provides constant current regulation over a broad voltage range
• Qualified to MIL-PRF-19500/463 standards for military applications
• Features internal metallurgical bond for enhanced reliability

Applications

• Current limiting circuits in aerospace systems
• Biasing elements for transistor stages
• Constant current sources for LED drivers

Procurement Notes

Verify the specific suffix UR-1/TR indicates the tape and reel packaging format for the MELF package. Confirm the JAN prefix denotes qualification per MIL-PRF-19500/463. Ensure the 4.73 mA nominal current matches the design requirements. Check for RoHS compliance status as indicated in official documentation.

Selection Notes

Select this component when a fixed current sink is required in a surface-mount configuration. Compare against axial-leaded equivalents if board space permits. Consider the 10% tolerance on the regulated current value. Verify the operating temperature range meets system specifications.

Part Context

This part belongs to the 1N5283-1 through 1N5314-1 series of 0.5 watt current regulators. These devices serve as counterparts to Zener diodes, regulating current rather than voltage. The series offers various current values from 0.22 mA to 4.7 mA in standard tolerances.

Replacement Considerations

Direct substitutes include other JANTXV1N5313 variants with different packaging such as bulk or axial leads. Commercial grade versions like 1N5313 may be considered if military qualification is not required.