JANS1N5308UR-1

Current Regulation - Diodes, Transistors Overview

The JANS1N5308UR-1 is a silicon current regulator diode manufactured by Microchip Technology. It operates in the SMD/SMT DO-213AB-2 package and provides a regulated current of 2.7 mA with a maximum limiting voltage of 2.15 V. The device supports a peak operating voltage of 100 V and dissipates up to 475 mW. It functions within a temperature range of -65 °C to +175 °C. This component is qualified under MIL-PRF-19500/463G for JANS level, ensuring suitability for high-reliability aerospace and defense applications requiring stable current regulation.

Current Regulation - Diodes, Transistors Feature Summary

• Provides stable current regulation over a broad voltage range using field effect technology.
• Features high source impedance for consistent performance across varying load conditions.
• Utilizes a hermetically sealed DO-213AB round-end surface mount package.
• Includes internal metallurgical bond connections for enhanced structural integrity.

Current Regulation - Diodes, Transistors Applications

• Aerospace and defense electronic systems requiring radiation-hardened components.
• High-reliability circuits needing constant current sources or biasing.
• Military-grade power management modules operating in extreme temperatures.

Current Regulation - Diodes, Transistors Procurement Notes

Verify that the specific ordering suffix matches the required qualification level, as JANS denotes a distinct military grade compared to JAN or JANTX variants. Confirm compliance with MIL-PRF-19500/463G specifications during acquisition. Ensure the procurement channel provides traceable documentation for the hermetic seal and material composition. Validate that the received units match the exact part number to avoid functional discrepancies arising from different tolerance grades.

Current Regulation - Diodes, Transistors Selection Notes

Select this component when a surface-mount current regulator with JANS radiation hardness is required. Compare against JAN or JANTX versions if lower cost is acceptable and environmental constraints are less severe. Ensure the circuit design accommodates the 2.7 mA nominal current and 2.15 V drop. Verify that the DO-213AB footprint aligns with the PCB layout requirements for round-end SMT packages.

Current Regulation - Diodes, Transistors Part Context

This device belongs to the 1N53xx series of current regulator diodes produced by Microchip Technology. The series includes various current ratings ranging from 0.22 mA to 10 mA. The UR-1 suffix indicates the surface-mount MELF-style package variant. Other levels such as JAN, JANTX, and JANTXV offer similar electrical characteristics but differ in qualification standards and testing rigor defined by the military specification.

Current Regulation - Diodes, Transistors Replacement Considerations

JANTX1N5308UR-1

Current Regulation - Diodes, Transistors FAQ

What is the difference between JANS and JAN qualification levels?

JANS indicates a higher reliability level than JAN, typically involving additional screening and testing for radiation hardness and long-term stability as defined by MIL-PRF-19500/463G.

Does the DO-213AB package affect the thermal performance?

Yes, the DO-213AB is a small surface-mount package. While it supports operation up to 175 °C, designers must ensure adequate thermal management to stay within the 475 mW power dissipation limit.

Is the JANS1N5308UR-1 RoHS compliant?

No, military-grade components like the JANS series are generally not RoHS compliant due to the use of lead-based materials required for hermetic sealing and solderability.