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1N4458R
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Product Detailed Parameters
- Description：DIODE STD REV 800V 15A DO203AA
- Series：-
- Mfr：Microchip Technology
- Package：Bulk
- Technology：Standard, Reverse Polarity
- Voltage - DC Reverse (Vr) (Max)：800 V
- Current - Average Rectified (Io)：15A
- Voltage - Forward (Vf) (Max) @ If：1.5 V @ 15 A
- Speed：Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr)：-
- Current - Reverse Leakage @ Vr：50 µA @ 800 V
- Capacitance @ Vr, F：-
- Mounting Type：Chassis, Stud Mount
- Package / Case：DO-203AA, DO-4, Stud
- Supplier Device Package：DO-203AA (DO-4)
- Operating Temperature - Junction：-65°C ~ 175°C
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Overview
The Microchip Technology 1N4458R is a standard reverse polarity rectifier diode designed for stud-mount applications. It features a DO-203AA (DO-4) package and supports an average rectified current of 15A with a maximum DC reverse voltage of 800V. The device exhibits a forward voltage of 1.5V at 15A and a reverse leakage current of 50µA at 800V. Operating junction temperatures range from -65°C to 175°C, ensuring reliability in demanding environments.
Feature Summary
- Standard reverse polarity rectification technology
- Stud-mount installation configuration
- High thermal stability across extended temperature ranges
Applications
- Industrial power conversion systems
- High-voltage rectification circuits
- Heavy-duty electrical equipment
Procurement Notes
Verify the specific suffix 'R' indicates the correct packaging or variant requirements for your assembly process. Confirm RoHS compliance status as indicated by manufacturer documentation, noting that this specific part may not meet all environmental directives. Ensure stud-mount hardware compatibility with the DO-203AA footprint before procurement.
Selection Notes
Select this component when high current handling and robust voltage blocking are required in a stud-mount form factor. Compare against similar 1N4458 variants to ensure the reverse recovery characteristics and thermal resistance meet specific circuit demands. Validate that the 15A continuous current rating aligns with peak load requirements.
Part Context
This component belongs to the 1N4458 series of power rectifiers manufactured by Microchip Technology. It shares the base 1N4458 designation but includes specific suffixes indicating package or testing variations. The series is widely recognized for general-purpose high-power rectification in industrial and military-grade electronics.
Replacement Considerations
Direct substitutes include other 1N4458 variants with compatible pinouts and electrical ratings. Verify mechanical dimensions for stud-mount compatibility. Cross-reference datasheets for equivalent reverse voltage and current capabilities to ensure functional interchangeability without circuit modification.
