DFLS230-7 vs MBRD835LT4G
| Part Number |
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| Category | Diodes - Rectifiers - Single | Diodes - Rectifiers - Single |
| Manufacturer | Diodes Incorporated | ON Semiconductor |
| Description | DIODE SCHOTTKY 30V 2A POWERDI123 | DIODE SCHOTTKY 35V 8A DPAK |
| Package | Cut Tape (CT) | Tape & Reel (TR) |
| Series | - | SWITCHMODE™ |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | POWERDI®123 | TO-252-3, DPak (2 Leads + Tab), SC-63 |
| Supplier Device Package | PowerDI™ 123 | DPAK |
| Diode Type | Schottky | Schottky |
| Current - Average Rectified (Io) | 2A | 8A |
| Voltage - Forward (Vf) (Max) @ If | 490 mV @ 2 A | 510 mV @ 8 A |
| Current - Reverse Leakage @ Vr | 1 mA @ 30 V | 1.4 mA @ 35 V |
| Capacitance @ Vr, F | 75pF @ 10V, 1MHz | - |
| Voltage - DC Reverse (Vr) (Max) | 30 V | 35 V |
| Speed | Fast Recovery =< 500ns, > 200mA (Io) | Fast Recovery =< 500ns, > 200mA (Io) |
| Reverse Recovery Time (trr) | - | - |
| Operating Temperature - Junction | -55°C ~ 125°C | -65°C ~ 150°C |
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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 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. 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.
