1N4007G-T vs BAS521LP-7
| Part Number |
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| Category | Diodes - Rectifiers - Single | Diodes - Rectifiers - Single |
| Manufacturer | Rectron USA | Diodes Incorporated |
| Description | DIODE GEN PURP GLASS 1000V 1A | DIODE GEN PURP 325V 400MA 2DFN |
| Package | Tape & Reel (TR) | Cut Tape (CT) |
| Series | - | - |
| Mounting Type | Through Hole | Surface Mount |
| Package / Case | DO-204AL, DO-41, Axial | 0402 (1006 Metric) |
| Supplier Device Package | DO-41 | X1-DFN1006-2 |
| Diode Type | Standard | Standard |
| Current - Average Rectified (Io) | 1A | 400mA (DC) |
| Voltage - Forward (Vf) (Max) @ If | 1 V @ 1 A | 1.1 V @ 100 mA |
| Current - Reverse Leakage @ Vr | 200 nA @ 1000 V | 150 nA @ 250 V |
| Capacitance @ Vr, F | 15pF @ 4V, 1MHz | 5pF @ 0V, 1MHz |
| Voltage - DC Reverse (Vr) (Max) | 1000 V | 325 V |
| Speed | Standard Recovery >500ns, > 200mA (Io) | Fast Recovery =< 500ns, > 200mA (Io) |
| Reverse Recovery Time (trr) | - | 50 ns |
| Operating Temperature - Junction | -65°C ~ 175°C | -65°C ~ 150°C |
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1. 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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2. 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.
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3. 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.
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4. What are the packaging types of rectifier diodes?
There are various packaging types for rectifier diodes, including axial pin packaging (such as DO-41), surface mount packaging (such as SMA, SMB), and high-power packaging (such as TO-220). When selecting, the appropriate packaging should be chosen based on the application's heat dissipation requirements and installation method.
