RM 1V vs SK39BHM4G
| Part Number |
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| Category | Diodes - Rectifiers - Single | Diodes - Rectifiers - Single |
| Manufacturer | Sanken | Taiwan Semiconductor Corporation |
| Description | DIODE GEN PURP 400V 1A AXIAL | DIODE SCHOTTKY 90V 3A DO214AA |
| Package | -Reel® | Tape & Reel (TR) |
| Series | - | Automotive, AEC-Q101 |
| Mounting Type | Through Hole | Surface Mount |
| Package / Case | Axial | DO-214AA, SMB |
| Supplier Device Package | Axial | DO-214AA (SMB) |
| Diode Type | Standard | Schottky |
| Current - Average Rectified (Io) | 1A | 3A |
| Voltage - Forward (Vf) (Max) @ If | 950 mV @ 1 A | 850 mV @ 3 A |
| Current - Reverse Leakage @ Vr | 5 µA @ 400 V | 100 µA @ 90 V |
| Capacitance @ Vr, F | - | - |
| Voltage - DC Reverse (Vr) (Max) | 400 V | 90 V |
| Speed | Standard Recovery >500ns, > 200mA (Io) | Fast Recovery =< 500ns, > 200mA (Io) |
| Reverse Recovery Time (trr) | - | - |
| Operating Temperature - Junction | -40°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. 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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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.
