SL42-M3/57T vs UPR5E3/TR13
| Part Number |
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| Category | Diodes - Rectifiers - Single | Diodes - Rectifiers - Single |
| Manufacturer | Vishay Semiconductor - Diodes Division | Microchip Technology |
| Description | DIODE SCHOTTKY 4A 20V DO-214AB | DIODE GEN PURP 50V 2.5A DO216 |
| Package | Tape & Reel (TR) | Tape & Reel (TR) |
| Series | - | - |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | DO-214AB, SMC | DO-216AA |
| Supplier Device Package | DO-214AB (SMC) | DO-216 |
| Diode Type | Schottky | Standard |
| Current - Average Rectified (Io) | 4A | 2.5A |
| Voltage - Forward (Vf) (Max) @ If | 420 mV @ 4 A | 975 mV @ 2 A |
| Current - Reverse Leakage @ Vr | 500 µA @ 20 V | 2 µA @ 50 V |
| Capacitance @ Vr, F | - | - |
| Voltage - DC Reverse (Vr) (Max) | 20 V | 50 V |
| Speed | Fast Recovery =< 500ns, > 200mA (Io) | Fast Recovery =< 500ns, > 200mA (Io) |
| Reverse Recovery Time (trr) | - | 25 ns |
| Operating Temperature - Junction | -55°C ~ 125°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 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.

