JANTXV1N5314UR-1

Overview

The JANTXV1N5314UR-1 is a silicon current regulator diode manufactured by Microchip Technology. It provides a regulated current of 4.7 mA with a maximum limiting voltage of 2.9 V. The device operates within a power dissipation rating of 500 mW and features a standard tolerance of 10%. It utilizes the DO-213AB (MELF) surface-mount package, which is hermetically sealed in glass. This component is qualified to the JANTXV level under MIL-PRF-19500/463H for high-reliability applications.

Feature Summary

• Hermetically sealed glass MELF package designed for harsh environments
• Maintains constant current over a broad operating voltage range
• Qualified to JANTXV reliability standards per military specifications

Applications

• Constant current sources for LED biasing
• Active load circuits in testing equipment
• Current limiting protection in sensitive electronic systems

Procurement Notes

Verify the specific suffix UR-1 indicates the surface-mount MELF configuration distinct from axial-leaded variants. Confirm JANTXV qualification requirements against project reliability standards. Ensure compatibility with DO-213AB footprint dimensions during PCB layout. Validate that lead-free or RoHS exemptions are documented if required by assembly processes.

Selection Notes

Select this model when a precise 4.7 mA regulation is required in a compact surface-mount form factor. Compare against the JAN or JANS levels if cost or specific environmental ratings differ from JANTXV requirements. Ensure the 2.9 V limiting voltage accommodates the circuit's headroom needs without exceeding the 500 mW power dissipation limit at maximum operating temperatures.

Part Context

This part belongs to the 1N53xx series of current regulator diodes, serving as a counterpart to Zener diodes by regulating current rather than voltage. The JANTXV designation signifies a higher reliability tier than standard JAN parts, suitable for aerospace and defense electronics requiring strict performance consistency.