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Product Detailed Parameters
- Description：DIODE STANDARD 400V 9A TO220AC
- Series：-
- Mfr：WeEn Semiconductors
- Package：Tube
- Technology：Standard
- Voltage - DC Reverse (Vr) (Max)：400 V
- Current - Average Rectified (Io)：9A
- Voltage - Forward (Vf) (Max) @ If：1.25 V @ 8 A
- Speed：Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr)：60 ns
- Current - Reverse Leakage @ Vr：50 µA @ 400 V
- Capacitance @ Vr, F：-
- Mounting Type：Through Hole
- Package / Case：TO-220-2
- Supplier Device Package：TO-220AC
- Operating Temperature - Junction：150°C (Max)
- Grade：-
- Qualification：-
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Overview
The BYV29-400,127 is a single ultrafast rectifier diode manufactured by WeEn Semiconductors. It features a peak repetitive reverse voltage of 400 V and a maximum continuous forward current of 9 A. The device exhibits a peak reverse recovery time of 60 ns and a maximum forward voltage of 1.4 V. It operates within a temperature range of -40°C to +150°C junction temperature. The component is housed in a TO-220 package with two pins for through-hole mounting.
Feature Summary
- Ultrafast switching capability with soft recovery characteristics
- Low thermal resistance design for efficient heat dissipation
- High thermal cycling performance ensuring robust operation
Applications
- High-frequency power supply circuits
- Free-wheeling rectification in inductive loads
- DC-DC converter output stages
Procurement Notes
Verify the complete part number including the suffix to ensure correct packaging configuration. Confirm that the required voltage and current ratings align with the specific circuit demands. Check for RoHS compliance status if environmental regulations apply to the final assembly. Ensure proper handling procedures are followed during installation due to the through-hole package type.
Selection Notes
Select this component when high-speed switching and low conduction losses are critical. The TO-220 package provides adequate thermal management for moderate power levels. Consider the 400 V rating for general-purpose applications requiring reliable reverse blocking. Evaluate the 9 A current capacity against peak load requirements to prevent overstress.
Part Context
This device belongs to the BYV29 series of ultrafast rectifiers designed for efficiency and speed. The series emphasizes low forward voltage drop and fast recovery times. It serves as a replacement for legacy components in modern high-efficiency power conversion systems. The manufacturer focuses on silicon-based solutions for industrial and consumer electronics.
Replacement Considerations
Check datasheets for compatible parts offering similar 400 V ratings and comparable recovery times. Verify pinout compatibility for direct substitution in existing PCB layouts. Ensure thermal characteristics match the original design constraints.
