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8AF4NPP
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Product Detailed Parameters
- Description：DIODE STANDARD 400V 50A B47
- Series：-
- Mfr：Vishay General Semiconductor - Diodes Division
- Package：Bulk
- Technology：Standard
- Voltage - DC Reverse (Vr) (Max)：400 V
- Current - Average Rectified (Io)：50A
- Voltage - Forward (Vf) (Max) @ If：-
- Speed：Standard Recovery >500ns, > 200mA (Io)
- Reverse Recovery Time (trr)：-
- Current - Reverse Leakage @ Vr：5 mA @ 400 V
- Capacitance @ Vr, F：-
- Mounting Type：Chassis, Stud Mount
- Package / Case：B-47
- Supplier Device Package：B-47
- Operating Temperature - Junction：-65°C ~ 195°C
- Grade：-
- Qualification：-
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Overview
The Vishay 8AF4NPP is a standard recovery rectifier diode designed for high-power applications. It features a maximum DC reverse voltage of 400V and an average rectified current of 50A. The device utilizes a B-47 base-mount package with stud installation, supporting a junction temperature range from -65°C to 195°C. Key electrical characteristics include a maximum reverse leakage current of 5mA at 400V and a standard recovery speed exceeding 500ns for currents above 200mA.
Feature Summary
- High thermal stability with a maximum junction temperature rating of 195°C
- Robust mechanical construction using a B-47 base-mount package for secure stud installation
- Standard recovery characteristics suitable for general-purpose power conversion
Applications
- Industrial power supplies
- Motor drive circuits
- Welding equipment
Procurement Notes
Verify the specific manufacturer datasheet for the 8AF4NPP to confirm all absolute maximum ratings and thermal resistance values before integration. Ensure that the mounting surface preparation and torque specifications align with the B-47 package requirements to maintain reliable electrical contact and thermal performance under operational loads.
Selection Notes
Select this component when a 50A current capacity and 400V blocking voltage are required in a stud-mount configuration. The wide operating temperature range makes it suitable for environments with significant thermal stress. Consider the standard recovery time when evaluating switching losses in the target circuit topology.
Part Context
This part belongs to the Vishay single diode and rectifier family, specifically within the category of standard recovery devices. The B-47 package is a common form factor for high-current industrial rectifiers, allowing for efficient heat dissipation through direct mounting to heatsinks or chassis structures.
Replacement Considerations
Consult official Vishay documentation for verified substitute part numbers. Do not assume cross-compatibility with other manufacturers' B-47 packages without verifying pinout, voltage, and current ratings.
