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Product Detailed Parameters
- Description：DIODE CUR REG 100V 473UA 500MW
- Series：-
- Mfr：Microchip Technology
- Package：Bulk
- Voltage - Anode - Cathode (Vak)(Max)：100V
- Regulator Current (Max)：473µA
- Voltage - Limiting (Max)：1.05V
- 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 Microchip Technology 1N5289UR-1 is a current regulator diode designed for surface-mount applications. It operates within the DO-213AB-2 package and provides a regulated current of 473 µA with a maximum power dissipation of 500 mW. The device supports a peak operating voltage of 100 V and features a maximum limiting voltage of 1.05 V. It is rated for junction temperatures ranging from -65°C to +175°C, ensuring reliability in demanding environments.
Feature Summary
- Provides stable current regulation suitable for biasing circuits
- Surface-mount construction in a compact DO-213AB-2 package
- Operates across an extended industrial temperature range
Applications
- Biasing networks for transistors and integrated circuits
- Constant current sources for LED drivers
- Reference current generation in analog signal processing
Procurement Notes
Verify component authenticity through authorized distribution channels. Confirm RoHS compliance status as indicated by manufacturer documentation. Ensure storage conditions align with moisture sensitivity level requirements to prevent package damage during soldering processes.
Selection Notes
Select this component when a fixed low-current source is required in a surface-mount design. Compare against axial equivalents like the 1N5289 if through-hole mounting is preferred. Verify that the 473 µA regulation current matches the specific circuit load requirements before finalizing the bill of materials.
Part Context
This part belongs to the 1N5289 series of current regulator diodes manufactured by Microchip Technology. It shares functional characteristics with other members of the family but differs in package type and regulatory suffixes. The UR-1 designation typically indicates specific military or high-reliability variants within the broader product line.
Replacement Considerations
Direct substitutes include the JAN1N5289UR-1 for enhanced reliability specifications. Cross-reference with generic 1N5289 devices if package compatibility allows. Verify pinout and electrical tolerances match before implementing any alternative components.
