CMJDH150 TR

Current Regulation - Diodes, Transistors Overview

The Central Semiconductor CMJDH150 TR is a surface mount silicon field effect current regulator diode designed to maintain constant current over a wide voltage range. It is housed in an epoxy molded, low profile DFN123F case. The device features a nominal regulator current of 15 mA with a maximum peak operating voltage of 50 V and power dissipation of 329 mW at 25°C. Operating junction temperature ranges from -65°C to +150°C. Electrical characteristics include a minimum dynamic impedance of 0.03 MΩ and a minimum knee impedance of 2.0 kΩ.

Current Regulation - Diodes, Transistors Feature Summary

• Silicon field effect construction for stable current regulation across varying voltages
• Low profile DFN123F epoxy molded package suitable for surface mount applications
• High reliability design with special current selections available for critical circuits

Current Regulation - Diodes, Transistors Applications

• Limiting current flowing through LED strings in dimming lighting systems
• Replacing tail resistors in differential amplifiers to improve common mode rejection ratio
• Providing high impedance active current sources for circuit stabilization

Current Regulation - Diodes, Transistors Procurement Notes

Verify the specific ordering suffix required for plating options when placing orders. The standard configuration utilizes lead-free plating, designated by the PBFREE suffix. Confirm thermal resistance requirements based on PCB layout, as mounted values differ significantly from free-air ratings. Ensure compatibility with the DFN123F footprint during procurement planning.

Current Regulation - Diodes, Transistors Selection Notes

Select the CMJDH150 for applications requiring a nominal 15 mA regulation current. Consider the 50 V peak operating voltage limit when designing circuits with higher supply rails. Evaluate the thermal performance based on the specific PCB copper trace area, as heat dissipation capabilities vary between mounted and unmounted conditions. Verify that the negative temperature coefficient aligns with system stability requirements.

Current Regulation - Diodes, Transistors Part Context

This component belongs to the CMJDH080 through CMJDH220 series of surface mount silicon current limiting diodes. All devices in this family share the same DFN123F package and general electrical structure, differing primarily in their specific regulator current ratings and corresponding marking codes. The series provides a standardized solution for constant current regulation in compact form factors.

Current Regulation - Diodes, Transistors Replacement Considerations

Direct substitutes within the same series include the CMJDH120 and CMJDH180, which offer different nominal current ratings while maintaining identical packaging and interface characteristics. When replacing other manufacturers' components, verify that the replacement maintains the required dynamic impedance and voltage handling capabilities for the specific application.