1N4740AP/TR8 vs 1N4742AP/TR8
| Part Number |
|
|
| Category | Diodes - Zener - Single | Diodes - Zener - Single |
| Manufacturer | Microchip Technology | Microchip Technology |
| Description | DIODE ZENER 10V 1W DO204AL | DIODE ZENER 12V 1W DO204AL |
| Package | Tape & Reel (TR) | Cut Tape (CT) |
| Series | - | - |
| Operating Temperature | -65°C ~ 150°C | -65°C ~ 150°C |
| Mounting Type | Through Hole | Through Hole |
| Package / Case | DO-204AL, DO-41, Axial | DO-204AL, DO-41, Axial |
| Supplier Device Package | DO-204AL (DO-41) | DO-204AL (DO-41) |
| Tolerance | ±5% | ±5% |
| Power - Max | 1 W | 1 W |
| Voltage - Forward (Vf) (Max) @ If | 1.2 V @ 200 mA | 1.2 V @ 200 mA |
| Current - Reverse Leakage @ Vr | 10 µA @ 7.6 V | 5 µA @ 9.1 V |
| Voltage - Zener (Nom) (Vz) | 10 V | 12 V |
| Impedance (Max) (Zzt) | 7 Ohms | 9 Ohms |
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1. Are Zener diodes unidirectional?
In normal operation mode, Zener diodes do exhibit unidirectional conductivity, but they start conducting when reverse biased to their Zener voltage.
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2. Where are Zener diodes used in real life?
Applied to power adapters, overvoltage protection in electronic devices, LED drive circuits, etc.
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3. Can Zener diodes be used as rectifiers?
This is generally not recommended because they are not designed to efficiently convert AC to DC. Rectification is usually done by specialized rectifier diodes.
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4. What are the special uses of Zener diodes?
Special uses include precision voltage references, overvoltage protection circuits, etc.
