JAN1N5304UR-1/TR

Current Regulation - Diodes, Transistors Overview

The JAN1N5304UR-1/TR is a current regulator diode manufactured by Microchip Technology, designed for surface-mount applications in the DO-213AB (MELF) package. It provides a regulated current of 1.6 mA with a maximum peak operating voltage of 100 V and a power dissipation rating of 475 mW. The device operates within an extended temperature range from -65 °C to +175 °C junction temperature. Qualified under MIL-PRF-19500/463, it features a minimum dynamic impedance of 510 kΩ and a minimum knee impedance of 105 kΩ, ensuring stable current regulation across varying voltage conditions.

Current Regulation - Diodes, Transistors Feature Summary

• Provides constant current regulation over a wide voltage range
• Qualified for military standards under MIL-PRF-19500/463
• Surface-mount MELF package design for compact integration

Current Regulation - Diodes, Transistors Applications

• Constant current sources for LED driving circuits
• Biasing elements for transistor amplifier stages
• Current limiting protection in sensitive electronic loads

Current Regulation - Diodes, Transistors Procurement Notes

Verify the specific suffix UR-1/TR against official Microchip documentation to confirm surface-mount MELF packaging and tape-and-reel delivery format. Ensure procurement channels source directly from authorized distributors to guarantee authenticity and traceability required for military-grade components. Confirm RoHS exemption status as these devices are typically non-compliant with standard environmental directives.

Current Regulation - Diodes, Transistors Selection Notes

Select this component when a fixed current sink is required in space-constrained designs utilizing SMD technology. Compare the 1.6 mA output against other series variants like JAN1N5303 or JAN1N5305 if different current levels are needed. Verify that the 100 V breakdown voltage exceeds the maximum circuit potential to prevent device failure during operation.

Current Regulation - Diodes, Transistors Part Context

This part belongs to the 1N5300 series of current regulator diodes, which offers a range of currents from approximately 0.22 mA to 4.7 mA. The JAN prefix indicates qualification to MIL-PRF-19500/463 standards, distinguishing it from commercial equivalents. The UR-1 designation typically denotes the round-end MELF package variant suitable for automated surface-mount assembly processes.

Current Regulation - Diodes, Transistors Replacement Considerations

Direct replacements include JAN1N5303UR-1/TR for slightly lower current (1.76 mA) or JAN1N5305UR-1/TR for higher current (1.43 mA). Verify pinout compatibility and thermal characteristics before substituting. Commercial equivalents may lack the required military qualification and extended temperature range.