SDM2A20CSP-7 vs B150Q-13-F
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| Category | Diodes - Rectifiers - Single | Diodes - Rectifiers - Single |
| Manufacturer | Diodes Incorporated | Diodes Incorporated |
| Description | DIODE SCHTKY 20V 2A X3-WLB1406-2 | DIODE SCHOTTKY 50V 1A SMA |
| Package | -Reel® | -Reel® |
| Series | - | Automotive, AEC-Q101 |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | 2-XDFN | DO-214AC, SMA |
| Supplier Device Package | X3-WLB1406-2 | SMA |
| Diode Type | Schottky | Schottky |
| Current - Average Rectified (Io) | 2A | 1A |
| Voltage - Forward (Vf) (Max) @ If | 530 mV @ 2 A | 700 mV @ 1 A |
| Current - Reverse Leakage @ Vr | 80 µA @ 20 V | 500 µA @ 40 V |
| Capacitance @ Vr, F | 70pF @ 5V, 1MHz | 110pF @ 4V, 1MHz |
| Voltage - DC Reverse (Vr) (Max) | 20 V | 50 V |
| Speed | Fast Recovery =< 500ns, > 200mA (Io) | Fast Recovery =< 500ns, > 200mA (Io) |
| Reverse Recovery Time (trr) | - | - |
| Operating Temperature - Junction | -55°C ~ 150°C | -65°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 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. What is the reverse recovery time of a rectifier diode?
Reverse recovery time refers to the time required for a diode to transition from a forward conducting state to a reverse blocking state. A shorter reverse recovery time is particularly important in high-frequency applications to reduce power loss.
