JANTX1N5297UR-1

Current Regulation - Diodes, Transistors Overview

The JANTX1N5297UR-1 is a silicon current regulator diode manufactured by Microchip Technology. It operates in the DO-213AB (MELF) surface-mount package and is qualified to MIL-PRF-19500/463 standards. The device provides a regulated current of 1 mA with a typical limiting voltage of 1.35 V. It functions as a constant current source over a broad reverse voltage range, serving as an alternative to Zener diodes which regulate voltage. The component is designed for high-reliability applications requiring stable current regulation in compact form factors.

Current Regulation - Diodes, Transistors Feature Summary

• Provides constant current regulation over a wide voltage range
• Hermetically sealed glass MELF package for environmental protection
• Qualified to military reliability standards

Current Regulation - Diodes, Transistors Applications

• Constant current sources for LED driving
• Biasing circuits for transistors and active components
• Current limiting protection in sensitive electronic circuits

Current Regulation - Diodes, Transistors Procurement Notes

Verify the specific revision level and lot traceability when sourcing this military-grade component. Ensure that the supplier provides valid certification of conformance to MIL-PRF-19500/463. Confirm that the DO-213AB package matches the footprint requirements of the target PCB design. Check for any specific handling instructions related to hermetic sealing integrity during assembly.

Current Regulation - Diodes, Transistors Selection Notes

Select this device when a fixed current sink or source is required independent of supply voltage variations within its operating range. Compare the 1 mA specification against circuit load requirements to ensure adequate headroom. Consider the thermal dissipation capabilities of the small MELF package under continuous operation. Evaluate the 1.35 V limiting voltage to ensure it does not interfere with downstream component biasing conditions.

Current Regulation - Diodes, Transistors Part Context

This part belongs to the 1N5283-1 through 1N5314-1 series of current regulator diodes. The 'JANTX' prefix indicates a specific military qualification level within the broader 1N52xx family. Similar parts in this series offer different current ratings ranging from 0.22 mA to 4.7 mA while maintaining the same regulatory function and package style.

Current Regulation - Diodes, Transistors Replacement Considerations

Direct substitutes include JAN1N5297UR-1 and JANTXV1N5297UR-1 from Microchip, which share identical electrical characteristics but may differ in quality assurance levels. Cross-manufacturer equivalents must be verified against MIL-PRF-19500/463 specifications to ensure compatibility.