ES2B/1 vs V8PM12HM3_A/H
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| Category | Diodes - Rectifiers - Single | Diodes - Rectifiers - Single |
| Manufacturer | Vishay Semiconductor - Diodes Division | Vishay Semiconductor - Diodes Division |
| Description | DIODE GEN PURP 100V 2A DO214AA | DIODE SCHOTTKY 120V 3.6A TO277A |
| Package | Tape & Reel (TR) | Tape & Reel (TR) |
| Series | - | Automotive, AEC-Q101, eSMP®, TMBS® |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | DO-214AA, SMB | TO-277, 3-PowerDFN |
| Supplier Device Package | DO-214AA (SMB) | TO-277A (SMPC) |
| Diode Type | Standard | Schottky |
| Current - Average Rectified (Io) | 2A | 3.6A |
| Voltage - Forward (Vf) (Max) @ If | 900 mV @ 2 A | 840 mV @ 8 A |
| Current - Reverse Leakage @ Vr | 10 µA @ 100 V | 300 µA @ 120 V |
| Capacitance @ Vr, F | 18pF @ 4V, 1MHz | - |
| Voltage - DC Reverse (Vr) (Max) | 100 V | 120 V |
| Speed | Fast Recovery =< 500ns, > 200mA (Io) | Fast Recovery =< 500ns, > 200mA (Io) |
| Reverse Recovery Time (trr) | 30 ns | - |
| Operating Temperature - Junction | -55°C ~ 150°C | -40°C ~ 150°C |
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1. 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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2. 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.
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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. How to improve the efficiency of rectifier diodes?
The use of Schottky diodes or fast recovery diodes can reduce forward voltage drop and reverse recovery time, thereby improving the efficiency of rectifier circuits, especially in high-frequency applications.
