DFLS230LQ-7 vs RF301BM2STL
| Part Number |
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| Category | Diodes - Rectifiers - Single | Diodes - Rectifiers - Single |
| Manufacturer | Diodes Incorporated | Rohm Semiconductor |
| Description | DIODE SCHOTTKY 30V 2A POWERDI123 | DIODE GEN PURP 200V 3A TO252 |
| Package | Tape & Reel (TR) | Tray |
| Series | Automotive, AEC-Q101 | - |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | POWERDI®123 | TO-252-3, DPak (2 Leads + Tab), SC-63 |
| Supplier Device Package | PowerDI™ 123 | TO-252 |
| Diode Type | Schottky | Standard |
| Current - Average Rectified (Io) | 2A | 3A |
| Voltage - Forward (Vf) (Max) @ If | 420 mV @ 2 A | 930 mV @ 3 A |
| Current - Reverse Leakage @ Vr | 1 mA @ 30 V | 10 µA @ 200 V |
| Capacitance @ Vr, F | 76pF @ 10V, 1MHz | - |
| Voltage - DC Reverse (Vr) (Max) | 30 V | 200 V |
| Speed | Fast Recovery =< 500ns, > 200mA (Io) | Fast Recovery =< 500ns, > 200mA (Io) |
| Reverse Recovery Time (trr) | - | 25 ns |
| Operating Temperature - Junction | -40°C ~ 125°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 maximum reverse voltage (PIV) of a rectifier diode?
The Peak Inverse Voltage (PIV) is the maximum reverse voltage that a diode can withstand. When selecting a diode, the PIV must be higher than the maximum reverse voltage in the circuit, usually twice or more the input voltage.
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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 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.
