1N4007GPE-E3/91 vs SR315 B0G
| Part Number |
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| Category | Diodes - Rectifiers - Single | Diodes - Rectifiers - Single |
| Manufacturer | Vishay Semiconductor - Diodes Division | Taiwan Semiconductor Corporation |
| Description | DIODE GEN PURP 1KV 1A DO204AL | DIODE SCHOTTKY 150V 3A DO201AD |
| Package | Box | Bulk |
| Series | - | - |
| Mounting Type | Through Hole | Through Hole |
| Package / Case | DO-204AL, DO-41, Axial | DO-201AD, Axial |
| Supplier Device Package | DO-204AL (DO-41) | DO-201AD |
| Diode Type | Standard | Schottky |
| Current - Average Rectified (Io) | 1A | 3A |
| Voltage - Forward (Vf) (Max) @ If | 1.1 V @ 1 A | 850 mV @ 3 A |
| Current - Reverse Leakage @ Vr | 5 µA @ 1000 V | 100 µA @ 150 V |
| Capacitance @ Vr, F | 8pF @ 4V, 1MHz | - |
| Voltage - DC Reverse (Vr) (Max) | 1000 V | 150 V |
| Speed | Standard Recovery >500ns, > 200mA (Io) | Fast Recovery =< 500ns, > 200mA (Io) |
| Reverse Recovery Time (trr) | 2 µs | - |
| Operating Temperature - Junction | -65°C ~ 175°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. How to choose the appropriate rectifier diode?
When making a choice, the following factors need to be considered:
Current capacity: Determine the maximum current that the diode needs to handle.
Reverse voltage: Ensure that the reverse voltage of the diode can withstand the highest voltage in the circuit.
Forward voltage drop: A lower forward voltage drop can improve circuit efficiency.
Recovery time: For high-frequency applications, choose fast recovery or Schottky diodes. -
3. What is forward voltage drop?
Forward voltage drop refers to the voltage drop generated when the current passes through a diode when it is conducting. The forward voltage drop of silicon rectifier diodes is usually around 0.7V, while the forward voltage drop of Schottky diodes is usually lower, between 0.2V and 0.3V.
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4. What is the difference between a single rectifier diode and a bridge rectifier?
A single rectifier diode can only rectify the positive half wave of AC power (half wave rectification), while a bridge rectifier composed of four diodes can rectify the positive and negative half waves of AC power (full wave rectification), with higher efficiency and smoother output.
