SS22/1 vs SS22HE3_A/I
| Part Number |
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| Category | Diodes - Rectifiers - Single | Diodes - Rectifiers - Single |
| Manufacturer | Vishay Semiconductor - Diodes Division | Vishay Semiconductor - Diodes Division |
| Description | DIODE SCHOTTKY 20V 2A DO214AA | DIODE SCHOTTKY 20V 2A DO214AA |
| Package | Bulk | Cut Tape (CT) |
| Series | - | Automotive, AEC-Q101 |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | DO-214AA, SMB | DO-214AA, SMB |
| Supplier Device Package | DO-214AA (SMB) | DO-214AA (SMB) |
| Diode Type | Schottky | Schottky |
| Current - Average Rectified (Io) | 2A | 2A |
| Voltage - Forward (Vf) (Max) @ If | 500 mV @ 2 A | 500 mV @ 2 A |
| Current - Reverse Leakage @ Vr | 400 µA @ 20 V | 400 µA @ 20 V |
| Capacitance @ Vr, F | - | - |
| Voltage - DC Reverse (Vr) (Max) | 20 V | 20 V |
| Speed | Fast Recovery =< 500ns, > 200mA (Io) | Fast Recovery =< 500ns, > 200mA (Io) |
| Reverse Recovery Time (trr) | - | - |
| Operating Temperature - Junction | -65°C ~ 125°C | -55°C ~ 150°C |
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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. 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. 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.
