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Product Detailed Parameters
- Description：DIODE CUR REG 100V 2.42MA 500MW
- Series：-
- Mfr：Microchip Technology
- Package：Bulk
- Voltage - Anode - Cathode (Vak)(Max)：100V
- Regulator Current (Max)：2.42mA
- Voltage - Limiting (Max)：1.95V
- Power - Max：500mW
- Applications：-
- Operating Temperature：-65°C ~ 175°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：DO-213AB, MELF (Glass)
- Supplier Device Package：DO-213AB (MELF, LL41)
- Grade：-
- Qualification：-
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Overview
The 1N5306UR-1 is a current regulator diode manufactured by Microchip Technology. It operates in the SMD/SMT form factor within the DO-213AB-2 package. The device provides a nominal regulating current of 2.42 mA with a maximum power dissipation of 500 mW. It supports a maximum peak operating voltage of 100 V and features a maximum limiting voltage of 1.6 V. The component functions as a constant current source over a wide voltage range, suitable for surface-mount applications requiring stable current regulation.
Feature Summary
- Provides constant current regulation across a broad voltage range
- Designed for surface-mount technology (SMT) integration
- Utilizes a round-end MELF-style DO-213AB-2 package
Applications
- Constant current sources for LED biasing
- Current limiting protection in electronic circuits
- Biasing elements for transistor amplifier stages
Procurement Notes
Verify the specific suffix UR-1 to confirm the surface-mount variant and package type. Ensure compatibility with the DO-213AB-2 footprint during PCB layout. Confirm that the 100 V peak voltage rating meets the circuit requirements. Check for military qualification if the JANTX prefix is required instead of the standard commercial version.
Selection Notes
Select this component when a fixed current sink is needed without complex feedback loops. Compare the 2.42 mA output against load requirements to ensure proper operation. Consider the thermal management capabilities of the DO-213AB-2 package for the 500 mW dissipation limit. Verify that the 1.6 V limiting voltage does not interfere with downstream logic levels.
Part Context
This part belongs to the 1N530x series of current regulator diodes produced by Microchip. These devices serve as alternatives to Zener diodes by regulating current rather than voltage. The series offers various current values from 0.22 mA to 4.7 mA. The UR-1 suffix specifically denotes the surface-mount configuration compared to axial-leaded versions.
Replacement Considerations
Direct substitutes include other 1N5306 variants such as JAN1N5306-1 or 1N5306-1TR, though package differences exist. Cross-reference with similar current regulator diodes offering 2.42 mA ±10% tolerance. Ensure replacement parts match the 100 V peak voltage and 500 mW power ratings.
