ChipApex | Global Electronic Components Supplier
SEARCH
Search Product
Search Post
— IC芯片 | 连接器 | 传感器 | 被动器件 —
Consult the customer manager about the wholesale price.
consultation hotline：86-132-6715-2157
email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.
Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.
Product Detailed Parameters
- Description：100V,1.5MA SURFACE MOUNT DIODE-C
- Series：-
- Mfr：Central Semiconductor Corp
- Package：Tape & Reel (TR),Cut Tape (CT)
- Voltage - Anode - Cathode (Vak)(Max)：100V
- Regulator Current (Max)：1.72mA
- Voltage - Limiting (Max)：2V
- Power - Max：780mW
- Applications：-
- Operating Temperature：-65°C ~ 150°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：2-SMD, No Lead
- Supplier Device Package：DFN123F
- Grade：-
- Qualification：-
Download product information
Overview
The Central Semiconductor CMJD1500 TR is a surface-mount silicon field-effect current regulator diode housed in the DFN123F package. It provides a nominal regulator current of 1.5 mA with a maximum peak operating voltage of 100 V and power dissipation of 445 mW at 25°C. The device maintains operation across a junction temperature range of -65°C to +150°C. Key electrical parameters include a minimum dynamic impedance of 0.45 MΩ, a minimum knee impedance of 70 kΩ, and a maximum limiting voltage of 2.0 V.
Feature Summary
- Silicon field-effect technology ensures constant current regulation over a wide voltage range.
- Low-profile epoxy molded DFN123F case suitable for surface mount applications.
- High impedance characteristics allow effective replacement for tail resistors in differential amplifiers.
Applications
- Limiting current flowing through LED strings in dimming lighting systems.
- Serving as a high-impedance tail resistor in differential amplifier designs.
- Acting as an active current source to improve common mode rejection ratio.
Procurement Notes
Verify the specific ordering suffix required for plating configuration when placing orders. The PBFREE suffix indicates lead-free plating, while TIN/LEAD specifies tin-lead options. Confirm that the reel packaging matches the intended automated assembly requirements. Ensure the component meets RoHS compliance standards if applicable to the final product regulations.
Selection Notes
Select the CMJD1500 for circuits requiring a nominal 1.5 mA constant current. Evaluate the thermal resistance of 280 °C/W for standard mounting conditions versus 160 °C/W on a PCB with adequate copper traces. Consider the negative temperature coefficient ranging from -0.13 to -0.40 %/°C for stability analysis within the specified operating temperature range.
Part Context
This component belongs to the CMJD0130 through CMJD5750 series of surface mount silicon current limiting diodes. All devices in this family share the same DFN123F package and fundamental operational principles, differing primarily in their specific regulator current ratings and associated impedance values.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should consult the manufacturer's application engineering team for potential cross-references or custom screening options.
FAQ
What is the marking code for the CMJD1500?
The marking code for the CMJD1500 is C152.
How does the CMJD1500 function in a differential amplifier?
It replaces the tail resistor to provide high impedance, regulating circuit current and increasing the common mode rejection ratio compared to traditional resistive tails.
What is the typical method for measuring the regulator current?
The regulator current is measured using a pulsed method where the pulse width in milliseconds equals 27.5 divided by the nominal current in milliamperes.
