ES3C-M3/9AT vs CFRC303-G
| Part Number |
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| Category | Diodes - Rectifiers - Single | Diodes - Rectifiers - Single |
| Manufacturer | Vishay Semiconductor - Diodes Division | Comchip Technology |
| Description | DIODE GEN PURP 150V 3A DO214AB | DIODE GEN PURP 200V 3A DO214AB |
| Package | Tape & Reel (TR) | Bulk |
| Series | - | - |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | DO-214AB, SMC | DO-214AB, SMC |
| Supplier Device Package | DO-214AB (SMC) | DO-214AB (SMC) |
| Diode Type | Standard | Standard |
| Current - Average Rectified (Io) | 3A | 3A |
| Voltage - Forward (Vf) (Max) @ If | 900 mV @ 3 A | 1.3 V @ 3 A |
| Current - Reverse Leakage @ Vr | 10 µA @ 150 V | 5 µA @ 200 V |
| Capacitance @ Vr, F | 45pF @ 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 | 150 ns |
| Operating Temperature - Junction | -55°C ~ 150°C | 150°C (Max) |
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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 identify the polarity of a single rectifier diode?
Rectifying diodes usually have polarity markings, with the positive (anode) of the diode being "+" and the negative (cathode) being "-". On the packaging of diodes, there is usually a circular mark on the cathode side indicating the direction of the diode.
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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.

