UG4C-M3/54 vs UG4B-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 100V 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 @ 100 V |
| Capacitance @ Vr, F | 20pF @ 4V, 1MHz | 20pF @ 4V, 1MHz |
| Voltage - DC Reverse (Vr) (Max) | 150 V | 100 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. 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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3. 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. -
4. What is the maximum reverse voltage (PIV) of a rectifier diode?
The Peak Inverse Voltage (PIV) is the maximum reverse voltage that a diode can withstand. When selecting a diode, the PIV must be higher than the maximum reverse voltage in the circuit, usually twice or more the input voltage.

