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Product Detailed Parameters
- Description：DIODE CUR REG 100V 4.1MA 500MW
- Series：-
- Mfr：Central Semiconductor Corp
- Package：Tape & Reel (TR),Cut Tape (CT)
- Voltage - Anode - Cathode (Vak)(Max)：100V
- Regulator Current (Max)：4.1mA
- Voltage - Limiting (Max)：3.2V
- Power - Max：500mW
- Applications：Silicon Field Effect
- Operating Temperature：-65°C ~ 150°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：SOD-123F
- Supplier Device Package：SOD-123FL
- Grade：-
- Qualification：-
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Overview
The CMJ3500 TR PBFREE is a surface mount silicon current regulator diode manufactured by Central Semiconductor Corp. It operates within the CMJ series, designed to maintain constant current over a wide voltage range. The device features a nominal regulator current of 3.55 mA with a maximum rating of 4.1 mA and a minimum of 3.0 mA at VT=25V. It supports a peak operating voltage of 100 V and dissipates up to 500 mW. The component is housed in an SOD-123FL package and functions across a junction temperature range of -65°C to +150°C.
Feature Summary
- Maintains constant current regulation over a wide voltage range using silicon field effect technology.
- Manufactured in a low-profile epoxy molded SOD-123FL case for surface mount applications.
- Offers special selections of regulator current tailored for critical circuit requirements.
Applications
- Constant current sources for LED biasing
- Current limiting protection for sensitive electronic components
- Active load circuits requiring stable current draw
Procurement Notes
Verify the specific ordering suffix against manufacturer documentation to confirm plating options. The standard designation indicates lead-free compliance. Confirm availability through authorized distributors as manufacturing lead times may vary. Ensure the requested quantity matches the tape and reel packaging specifications provided by the supplier.
Selection Notes
Select the CMJ3500 when a nominal current of 3.55 mA is required. Verify that the application voltage remains below the 100 V peak operating limit. Consider the dynamic impedance characteristics for precision applications. Ensure the PCB layout accommodates the SOD-123FL footprint and thermal dissipation requirements for 500 mW power handling.
Part Context
This component belongs to the CMJ0130 through CMJH220 series of surface mount silicon current limiting diodes. The series provides various current ratings from 0.13 mA to 25 mA. The CMJ3500 specifically targets applications needing approximately 3.55 mA regulation. All devices in this family share similar electrical characteristics and mechanical packaging standards defined by Central Semiconductor.
Replacement Considerations
Direct substitutes include other CMJ series parts with adjusted current ratings if the exact 3.55 mA value is not critical. Cross-reference with generic SOD-123 current limiting diodes only if electrical parameters such as peak voltage and power dissipation are compatible. Verify marking codes and pinout configurations before substitution.
FAQ
What is the marking code for the CMJ3500?
The marking code for the CMJ3500 is 352.
What is the typical temperature coefficient for this device?
The temperature coefficient ranges from -0.20%/°C to -0.47%/°C.
How is the regulator current measured?
The regulator current (IP) is specified at a test voltage (VT) of 25V.
