STPSC8H065G-TR vs RFUS20NS6STL
| Part Number |
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| Category | Diodes - Rectifiers - Single | Diodes - Rectifiers - Single |
| Manufacturer | STMicroelectronics | Rohm Semiconductor |
| Description | DIODE SCHOTTKY 650V 8A D2PAK | DIODE GEN PURP 600V 20A LPDS |
| Package | -Reel® | Tape & Reel (TR) |
| Series | - | - |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | TO-263-3, D²Pak (2 Leads + Tab), TO-263AB | TO-263-3, D²Pak (2 Leads + Tab), TO-263AB |
| Supplier Device Package | D²PAK | LPDS |
| Diode Type | Silicon Carbide Schottky | Standard |
| Current - Average Rectified (Io) | 8A | 20A |
| Voltage - Forward (Vf) (Max) @ If | 1.75 V @ 8 A | 2.8 V @ 20 A |
| Current - Reverse Leakage @ Vr | 80 µA @ 650 V | 10 µA @ 600 V |
| Capacitance @ Vr, F | 414pF @ 0V, 1MHz | - |
| Voltage - DC Reverse (Vr) (Max) | 650 V | 600 V |
| Speed | No Recovery Time > 500mA (Io) | Fast Recovery =< 500ns, > 200mA (Io) |
| Reverse Recovery Time (trr) | 0 ns | 35 ns |
| Operating Temperature - Junction | -40°C ~ 175°C | 150°C (Max) |
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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. What is a fast recovery diode?
Fast recovery diode is a special type of rectifier diode with a short reverse recovery time, suitable for high-frequency power supplies and switch mode power supplies (SMPS) applications, reducing switching losses.
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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.
