SS3P4LHM3_A/H vs SF46GHR0G
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| Category | Diodes - Rectifiers - Single | Diodes - Rectifiers - Single |
| Manufacturer | Vishay Semiconductor - Diodes Division | Taiwan Semiconductor Corporation |
| Description | DIODE SCHOTTKY 40V 3A TO277A | DIODE GEN PURP 400V 4A DO201AD |
| Package | Tape & Reel (TR) | Tape & Reel (TR) |
| Series | Automotive, AEC-Q101 | Automotive, AEC-Q101 |
| Mounting Type | Surface Mount | Through Hole |
| Package / Case | TO-277, 3-PowerDFN | DO-201AD, Axial |
| Supplier Device Package | TO-277A (SMPC) | DO-201AD |
| Diode Type | Schottky | Standard |
| Current - Average Rectified (Io) | 3A | 4A |
| Voltage - Forward (Vf) (Max) @ If | 470 mV @ 3 A | 1.3 V @ 4 A |
| Current - Reverse Leakage @ Vr | 250 µA @ 40 V | 5 µA @ 400 V |
| Capacitance @ Vr, F | - | 80pF @ 4V, 1MHz |
| Voltage - DC Reverse (Vr) (Max) | 40 V | 400 V |
| Speed | Fast Recovery =< 500ns, > 200mA (Io) | Fast Recovery =< 500ns, > 200mA (Io) |
| Reverse Recovery Time (trr) | - | 35 ns |
| 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 a fast recovery diode?
Fast recovery diode is a special type of rectifier diode with a short reverse recovery time, suitable for high-frequency power supplies and switch mode power supplies (SMPS) applications, reducing switching losses.
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3. Can a single rectifier diode be used for high-frequency applications?
Traditional silicon rectifier diodes are not suitable for high-frequency applications because their reverse recovery time is relatively long. For high-frequency applications, fast recovery diodes or Schottky diodes are typically used to reduce switching losses and improve efficiency.
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4. What are the packaging types of rectifier diodes?
There are various packaging types for rectifier diodes, including axial pin packaging (such as DO-41), surface mount packaging (such as SMA, SMB), and high-power packaging (such as TO-220). When selecting, the appropriate packaging should be chosen based on the application's heat dissipation requirements and installation method.
