SDM2A20CSP-7 vs US2BA
| Part Number |
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| Category | Diodes - Rectifiers - Single | Diodes - Rectifiers - Single |
| Manufacturer | Diodes Incorporated | ON Semiconductor |
| Description | DIODE SCHTKY 20V 2A X3-WLB1406-2 | DIODE GEN PURP 100V 1.5A SMA |
| Package | -Reel® | Tape & Reel (TR) |
| Series | - | Automotive, AEC-Q101 |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | 2-XDFN | DO-214AC, SMA |
| Supplier Device Package | X3-WLB1406-2 | DO-214AC (SMA) |
| Diode Type | Schottky | Standard |
| Current - Average Rectified (Io) | 2A | 1.5A |
| Voltage - Forward (Vf) (Max) @ If | 530 mV @ 2 A | 1 V @ 1.5 A |
| Current - Reverse Leakage @ Vr | 80 µA @ 20 V | 5 µA @ 100 V |
| Capacitance @ Vr, F | 70pF @ 5V, 1MHz | 50pF @ 4V, 1MHz |
| Voltage - DC Reverse (Vr) (Max) | 20 V | 100 V |
| Speed | Fast Recovery =< 500ns, > 200mA (Io) | Fast Recovery =< 500ns, > 200mA (Io) |
| Reverse Recovery Time (trr) | - | 50 ns |
| Operating Temperature - Junction | -55°C ~ 150°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 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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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 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.
