SS5P3HM3_A/H vs SS3P4LHM3_A/H
| Part Number |
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| Category | Diodes - Rectifiers - Single | Diodes - Rectifiers - Single |
| Manufacturer | Vishay Semiconductor - Diodes Division | Vishay Semiconductor - Diodes Division |
| Description | DIODE SCHOTTKY 30V 5A TO277A | DIODE SCHOTTKY 40V 3A TO277A |
| Package | Cut Tape (CT) | Tape & Reel (TR) |
| Series | Automotive, AEC-Q101 | Automotive, AEC-Q101 |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | TO-277, 3-PowerDFN | TO-277, 3-PowerDFN |
| Supplier Device Package | TO-277A (SMPC) | TO-277A (SMPC) |
| Diode Type | Schottky | Schottky |
| Current - Average Rectified (Io) | 5A | 3A |
| Voltage - Forward (Vf) (Max) @ If | 520 mV @ 5 A | 470 mV @ 3 A |
| Current - Reverse Leakage @ Vr | 250 µA @ 30 V | 250 µA @ 40 V |
| Capacitance @ Vr, F | - | - |
| Voltage - DC Reverse (Vr) (Max) | 30 V | 40 V |
| Speed | Fast Recovery =< 500ns, > 200mA (Io) | Fast Recovery =< 500ns, > 200mA (Io) |
| Reverse Recovery Time (trr) | - | - |
| Operating Temperature - Junction | -55°C ~ 150°C | -55°C ~ 150°C |
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1. What is the working principle of a single rectifier diode?
A rectifier diode conducts current when forward biased, converting the positive half wave of alternating current into direct current. When reverse biased, the diode blocks the current, thereby preventing the negative half wave from passing through and achieving rectification effect.
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2. What is the reverse recovery time of a rectifier diode?
Reverse recovery time refers to the time required for a diode to transition from a forward conducting state to a reverse blocking state. A shorter reverse recovery time is particularly important in high-frequency applications to reduce power loss.
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3. How to determine if the rectifier diode is damaged?
Use a multimeter to measure the forward and reverse resistance of a diode. If the diode exhibits low impedance or high impedance in both directions, it may have been damaged. Under normal circumstances, there should be low impedance when conducting in the forward direction, and high impedance when conducting in the reverse direction.
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4. How to improve the efficiency of rectifier diodes?
The use of Schottky diodes or fast recovery diodes can reduce forward voltage drop and reverse recovery time, thereby improving the efficiency of rectifier circuits, especially in high-frequency applications.
