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Product Detailed Parameters
- Description：DIODE STANDARD 400V 8A TO220AC
- Series：-
- Mfr：STMicroelectronics
- Package：Tube
- Technology：Standard
- Voltage - DC Reverse (Vr) (Max)：400 V
- Current - Average Rectified (Io)：8A
- Voltage - Forward (Vf) (Max) @ If：1.5 V @ 8 A
- Speed：Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr)：75 ns
- Current - Reverse Leakage @ Vr：15 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 BYT08P-400 is a fast recovery rectifier diode manufactured by STMicroelectronics, designed for switch mode power supplies and motor control circuits. It features a TO-220AC package with a maximum repetitive peak reverse voltage of 400 V and an average forward current rating of 8 A at a case temperature of 120 °C. The device exhibits a very low reverse recovery time of up to 35 ns and a maximum forward voltage drop of 1.4 V at 100 °C. Surge non-repetitive forward current capability reaches 100 A for 10 ms pulses.
Feature Summary
- Very low reverse recovery time for reduced switching losses
- Low noise turn-off switching characteristics
- Insulated TO-220AC package providing 2500 VRMS isolation
Applications
- Switch Mode Power Supplies
- Free-wheeling function in converters
- Motor control circuits
Procurement Notes
Verify the specific ordering suffix (e.g., 'I' for insulated) against the required thermal isolation specifications. Confirm that the TO-220AC package dimensions match the target PCB layout. Ensure the application operates within the specified junction temperature range of -40 to +150 °C and respects the recommended mounting torque values for reliable thermal conduction.
Selection Notes
Select this component when high-speed rectification is required in power conversion systems. The insulated variant is suitable for applications demanding galvanic isolation between the heatsink and the circuit. Evaluate the thermal resistance requirements based on the expected RMS and average forward currents to ensure adequate heat dissipation without exceeding the maximum junction temperature limits.
Part Context
This device belongs to the BYT series of fast recovery rectifiers from STMicroelectronics. It utilizes planar technology to achieve low leakage current and robust performance under high-frequency switching conditions. The TO-220AC package allows for efficient heat transfer via conduction, making it appropriate for medium-power industrial and consumer electronics applications.
Replacement Considerations
Check datasheets for other BYT series variants or equivalent fast recovery diodes from other manufacturers. Ensure replacement parts match the 400 V reverse voltage, 8 A average current, and TO-220AC package footprint. Verify that the substitute device meets the same reverse recovery time and insulation voltage requirements if applicable.
FAQ
What is the maximum reverse recovery time for the BYT08P-400?
The maximum reverse recovery time is 35 ns at a junction temperature of 25 °C under specified test conditions.
Does the BYT08P-400 offer electrical insulation?
Yes, the insulated version (BYT08PI-400) provides an insulation voltage of 2500 VRMS between the terminal and the mounting base.
