UG4C-M3/54 vs UG4D-M3/54
| Part Number |
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| Category | Diodes - Rectifiers - Single | Diodes - Rectifiers - Single |
| Manufacturer | Vishay Semiconductor - Diodes Division | Vishay Semiconductor - Diodes Division |
| Description | DIODE GEN PURP 150V 4A DO201AD | DIODE GEN PURP 200V 4A DO201AD |
| Package | Tape & Reel (TR) | Tape & Reel (TR) |
| Series | - | - |
| Mounting Type | Through Hole | Through Hole |
| Package / Case | DO-201AD, Axial | DO-201AD, Axial |
| Supplier Device Package | DO-201AD | DO-201AD |
| Diode Type | Standard | Standard |
| Current - Average Rectified (Io) | 4A | 4A |
| Voltage - Forward (Vf) (Max) @ If | 950 mV @ 1 A | 950 mV @ 4 A |
| Current - Reverse Leakage @ Vr | 5 µA @ 150 V | 5 µA @ 200 V |
| Capacitance @ Vr, F | 20pF @ 4V, 1MHz | 20pF @ 4V, 1MHz |
| Voltage - DC Reverse (Vr) (Max) | 150 V | 200 V |
| Speed | Fast Recovery =< 500ns, > 200mA (Io) | Fast Recovery =< 500ns, > 200mA (Io) |
| Reverse Recovery Time (trr) | 30 ns | 30 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. 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 the difference between Schottky diodes and traditional silicon rectifier diodes?
Schottky diodes have a lower forward voltage drop (typically 0.2V to 0.3V) and faster switching speed, making them suitable for high-frequency applications. However, their reverse voltage is relatively low and is typically used in circuits with lower voltages.
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4. 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.
