PBPC604 vs MB8S-TP
| Part Number |
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| Category | Diodes - Bridge Rectifiers | Diodes - Bridge Rectifiers |
| Manufacturer | Diodes Incorporated | Micro Commercial Co |
| Description | BRIDGE RECT 1P 400V 4A PBPC-6 | BRIDGE RECT 1P 800V 500MA MBS-1 |
| Package | Bulk | Cut Tape (CT) |
| Series | - | - |
| Operating Temperature | -65°C ~ 125°C (TJ) | -55°C ~ 150°C (TJ) |
| Mounting Type | Through Hole | Surface Mount |
| Package / Case | 4-Square, PBPC-6 | TO-269AA, 4-BESOP |
| Supplier Device Package | PBPC-6 | MBS-1 |
| Technology | Standard | Standard |
| Diode Type | Single Phase | Single Phase |
| Voltage - Peak Reverse (Max) | 400 V | 800 V |
| Current - Average Rectified (Io) | 4 A | 500 mA |
| Voltage - Forward (Vf) (Max) @ If | 1.1 V @ 3 A | 1 V @ 400 mA |
| Current - Reverse Leakage @ Vr | 10 µA @ 400 V | 5 µA @ 800 V |
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1. What is the working principle of bridge rectifier?
The bridge rectifier converts the input AC power into DC power through an arrangement of four diodes. Every half cycle, two diodes conduct, converting both positive and negative half waves of alternating current into direct current in the same direction.
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2. What is the peak reverse voltage (PIV) of a bridge rectifier?
Peak reverse voltage (PIV) is the maximum voltage that a bridge rectifier can withstand when reverse biased. When selecting a bridge rectifier, the PIV should be at least twice the peak voltage of the input AC power to prevent diode breakdown under reverse voltage.
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3. How to improve the efficiency of bridge rectifier?
The use of Schottky diodes in bridge rectifiers can reduce forward voltage drop and improve efficiency. In addition, increasing the filtering capacitor and optimizing the heat dissipation design can also improve the performance and efficiency of the rectifier.
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4. Can bridge rectifiers be used for high-frequency applications?
Traditional silicon bridge rectifiers have low efficiency in high-frequency applications and are prone to significant power losses. However, bridge rectifiers using Schottky diodes or fast recovery diodes can significantly improve high-frequency rectification performance.

