VS-8TQ100STRLPBF vs RF505B6STL
| Part Number |
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| Category | Diodes - Rectifiers - Single | Diodes - Rectifiers - Single |
| Manufacturer | Vishay Semiconductor - Diodes Division | Rohm Semiconductor |
| Description | DIODE SCHOTTKY 100V 8A D2PAK | DIODE GEN PURP 600V 5A CPD |
| Package | Tape & Reel (TR) | Tape & Reel (TR) |
| Series | - | - |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | TO-263-3, D²Pak (2 Leads + Tab), TO-263AB | TO-252-3, DPak (2 Leads + Tab), SC-63 |
| Supplier Device Package | TO-263AB (D²PAK) | CPD |
| Diode Type | Schottky | Standard |
| Current - Average Rectified (Io) | 8A | 5A |
| Voltage - Forward (Vf) (Max) @ If | 720 mV @ 8 A | 1.7 V @ 5 A |
| Current - Reverse Leakage @ Vr | 550 µA @ 100 V | 10 µA @ 600 V |
| Capacitance @ Vr, F | 500pF @ 5V, 1MHz | - |
| Voltage - DC Reverse (Vr) (Max) | 100 V | 600 V |
| Speed | Fast Recovery =< 500ns, > 200mA (Io) | Fast Recovery =< 500ns, > 200mA (Io) |
| Reverse Recovery Time (trr) | - | 30 ns |
| Operating Temperature - Junction | -55°C ~ 175°C | 150°C (Max) |
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1. How to choose the appropriate rectifier diode?
When making a choice, the following factors need to be considered:
Current capacity: Determine the maximum current that the diode needs to handle.
Reverse voltage: Ensure that the reverse voltage of the diode can withstand the highest voltage in the circuit.
Forward voltage drop: A lower forward voltage drop can improve circuit efficiency.
Recovery time: For high-frequency applications, choose fast recovery or Schottky diodes. -
2. Can a single rectifier diode be used for high-frequency applications?
Traditional silicon rectifier diodes are not suitable for high-frequency applications because their reverse recovery time is relatively long. For high-frequency applications, fast recovery diodes or Schottky diodes are typically used to reduce switching losses and improve efficiency.
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3. 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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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.
