JANTXV1N5313UR-1

Overview

The JANTXV1N5313UR-1 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 compact DO-213AB (MELF) package. The device maintains a regulated current of 4.73 mA with a maximum reverse voltage rating of 100 V and a power dissipation capacity of 500 mW. Designed for high-reliability applications, it features internal metallurgical bonding and high source impedance to ensure consistent performance across varying voltage conditions.

Feature Summary

• Qualified per MIL-PRF-19500/463 standards for military-grade reliability
• Features internal metallurgical bond construction for enhanced durability
• Provides high source impedance for stable current regulation over broad voltage ranges

Applications

• Constant current sources for LED driving circuits
• Biasing networks for transistor amplifiers
• Current limiting protection in sensitive electronic systems

Procurement Notes

Verify that the specific ordering suffix matches the required qualification level and packaging format. Confirm compliance with project-specific environmental regulations, as this component may not meet standard RoHS requirements depending on the exact variant. Ensure compatibility with automated placement equipment due to the MELF form factor.

Selection Notes

Select this component when a surface-mount solution is required for precise current regulation in harsh environments. Compare against axial-leaded equivalents if board space permits, noting that the MELF package offers different thermal and mechanical characteristics. Validate that the 4.73 mA output aligns with the target circuit design requirements.

Part Context

This part belongs to the 1N5313 series of current regulator diodes, which are designed as counterparts to Zener diodes by regulating current rather than voltage. The UR-1 suffix indicates the surface-mount MELF configuration, distinguishing it from the traditional axial DO-7 leaded versions while maintaining similar electrical functionality.

Replacement Considerations

Direct substitutes include JAN1N5313UR-1 or JANS1N5313UR-1 for lower or higher qualification levels respectively. Commercial grade 1N5313UR-1 variants are available but lack military qualification. Axial DO-7 packages such as 1N5313 serve as functional replacements if footprint changes are permissible.