JANS1N5289UR-1/TR

Current Regulation - Diodes, Transistors Overview

The JANS1N5289UR-1/TR is a current regulator diode manufactured by Microchip Technology. It provides a regulated current of 473 µA with a maximum anode-to-cathode voltage rating of 100 V and a power dissipation capacity of 500 mW. The device utilizes a DO-213AB-2 (SMA) surface-mount package, designated as Round-End SMT. It operates within a junction temperature range of -65°C to +175°C. This component is designed for applications requiring stable current regulation in harsh environments.

Current Regulation - Diodes, Transistors Feature Summary

• Provides constant current regulation independent of supply voltage variations within the operating range.
• Engineered for high reliability and radiation hardness suitable for aerospace and military missions.
• Features a compact surface-mount form factor optimized for automated assembly processes.

Current Regulation - Diodes, Transistors Applications

• Biasing circuits for photodetectors and optical sensors.
• Current limiting protection for sensitive semiconductor devices.
• Reference current sources in precision analog signal processing chains.

Current Regulation - Diodes, Transistors Procurement Notes

Verify the specific suffix UR-1/TR against official Microchip documentation to confirm the exact reel configuration and tape-and-reel specifications. Ensure that the procurement channel is authorized to guarantee authenticity and traceability for this JANS series component. Cross-reference the manufacturer part number with the latest datasheet to validate all electrical parameters before integration into the design.

Current Regulation - Diodes, Transistors Selection Notes

Select this component when a precise 473 µA regulation current is required in a surface-mount environment. Confirm that the 100 V breakdown voltage aligns with the circuit's maximum operating conditions. Evaluate the thermal management requirements to ensure the 500 mW power dissipation limit is not exceeded under worst-case ambient temperatures and load conditions.

Current Regulation - Diodes, Transistors Part Context

This part belongs to the JANS series, which denotes space-grade or military-grade qualification standards enforced by Microchip. The base model 1N5289 defines the electrical characteristics, while the JANS prefix indicates enhanced screening and reliability testing protocols. The UR-1 suffix typically specifies the surface-mount variant, distinguishing it from through-hole equivalents like the DO-7 packaged versions found in the standard industrial line.

Current Regulation - Diodes, Transistors Replacement Considerations

Direct pin-compatible replacements include other JANS-series current regulators with identical 473 µA ratings, such as JAN1N5289UR-1. Verify that any substitute maintains the same DO-213AB footprint and meets the required -65°C to +175°C operating temperature range. Consult Microchip's official substitution guide for qualified alternatives.