1N5307UR-1/TR

Overview

The Microchip Technology 1N5307UR-1/TR is a current regulator diode in the DO-213AB (MELF, LL41) surface-mount package. It provides a nominal regulating current of 2.40 mA with a tolerance range of 2.16 mA to 2.64 mA at a voltage of 25 V. The device features a maximum peak operating voltage of 100 V and a steady-state power dissipation of 500 mW. It operates within a junction temperature range of -65 °C to +150 °C. The component utilizes a hermetically sealed glass case with internal metallurgical bonds.

Feature Summary

• JEDEC registered surface mount equivalent of the 1N5283 through 1N5314 series
• High source impedance for stable current regulation
• Double-plug construction with large die element
• Inherently radiation hard design

Applications

• Current limiting in electronic circuits
• Biasing active components over broad voltage ranges
• Replacing Zener diodes where constant current is required instead of constant voltage

Procurement Notes

Verify the specific ordering suffix against official documentation to confirm packaging details. The /TR suffix indicates tape and reel packaging per EIA-481-1-A standards. Confirm RoHS compliance status as it varies by grade. Ensure the procurement channel sources directly from authorized distributors or the manufacturer to guarantee authenticity and traceability.

Selection Notes

Select this component when a precise current value between 2.16 mA and 2.64 mA is required across a wide voltage span up to 100 V. Consider the DO-213AB package dimensions for PCB layout constraints. Evaluate thermal resistance requirements if operating near the maximum power dissipation limit of 500 mW. Verify that the standard 10% current tolerance meets the application's precision needs.

Part Context

This part belongs to the 1N5283UR-1 through 1N5314UR-1 family of 0.5 watt current regulators manufactured by Microchip Technology. These devices serve as counterparts to Zener diodes, offering current regulation over a broad voltage range rather than voltage regulation over a broad current range. The series includes various current values from 0.22 mA to 10.0 mA.

Replacement Considerations

Direct equivalents include other manufacturers' MELF-style current regulator diodes with matching 2.4 mA nominal current and 100 V rating. Verify pinout polarity and physical dimensions before substitution. Military qualified versions such as JANTX1N5307UR-1 are available for specialized applications requiring higher reliability standards.