CMDD4448 TR vs SS8P3L-M3/86A
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| Category | Diodes - Rectifiers - Single | Diodes - Rectifiers - Single |
| Manufacturer | Central Semiconductor Corp | Vishay Semiconductor - Diodes Division |
| Description | DIODE GEN PURP 75V 250MA SOD323 | DIODE SCHOTTKY 30V 8A TO277A |
| Package | SC-76, SOD-323 | -Reel® |
| Series | - | eSMP® |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | SC-76, SOD-323 | TO-277, 3-PowerDFN |
| Supplier Device Package | SOD-323 | TO-277A (SMPC) |
| Diode Type | Standard | Schottky |
| Current - Average Rectified (Io) | 250mA | 8A |
| Voltage - Forward (Vf) (Max) @ If | 1V @ 100mA | 570 mV @ 8 A |
| Current - Reverse Leakage @ Vr | 25nA @ 20V | 200 µA @ 30 V |
| Capacitance @ Vr, F | 4pF @ 0V, 1MHz | 330pF @ 4V, 1MHz |
| Voltage - DC Reverse (Vr) (Max) | 75V | 30 V |
| Speed | Fast Recovery =< 500ns, > 200mA (Io) | Fast Recovery =< 500ns, > 200mA (Io) |
| Reverse Recovery Time (trr) | 4ns | - |
| Operating Temperature - Junction | -65°C ~ 175°C | -55°C ~ 150°C |
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1. What are the common applications of a single rectifier diode?
They are commonly used in power circuits, chargers, AC to DC converters, motor drives, circuit protection, and other electronic devices to convert AC power to DC power or protect circuits from reverse current.
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2. 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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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. 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.
