CMJ0300 TR PBFREE

Overview

The CMJ0300 TR PBFREE is a surface mount silicon field effect current regulator diode manufactured by Central Semiconductor Corp. It operates within the CMJ0130 series, designed to maintain constant current over a wide voltage range. The device is housed in an epoxy molded SOD-123FL case with a maximum power dissipation of 500 mW and a peak operating voltage of 100 V. The nominal regulator current (IP) is 0.31 mA, with a minimum dynamic impedance of 4.0 MΩ at VT=25V and a maximum limiting voltage of 0.8 V at IL=0.8 x IP MIN.

Feature Summary

• Maintains constant current over a wide voltage range
• Manufactured in low profile epoxy molded SOD-123FL case
• High reliability construction

Applications

• Applications requiring constant current regulation
• Critical applications needing special current selections

Procurement Notes

Verify the specific ordering suffix against manufacturer documentation to confirm plating options. The standard designation indicates lead-free compliance. Confirm package type and tape & reel specifications directly with the supplier or official datasheet before procurement to ensure compatibility with automated assembly processes.

Selection Notes

Select this component based on the required nominal regulator current of 0.31 mA and the 100 V peak operating voltage limit. Ensure the design accommodates the specified temperature coefficient range of +0.40 to -0.20 %/°C. Verify that the SOD-123FL footprint matches the PCB layout requirements for the intended surface mount application.

Part Context

This part belongs to the CMJ0130 through CMJH220 series of surface mount silicon current limiting diodes from Central Semiconductor Corp. The series offers various special selections of regulator current for critical applications, all sharing the same low-profile SOD-123FL package and general electrical characteristics structure.

Replacement Considerations

Consult the official datasheet for equivalent parts within the same series or cross-reference with other manufacturers offering similar current regulator diodes in the SOD-123FL package. Verify matching electrical parameters such as nominal current, voltage limits, and impedance values.