ZMY43-GS18 vs ZMY3V9-GS18
| Part Number |
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| Category | Diodes - Zener - Single | Diodes - Zener - Single |
| Manufacturer | Vishay Semiconductor - Diodes Division | Vishay Semiconductor - Diodes Division |
| Description | DIODE ZENER 43V 1W DO213AB | DIODE ZENER 3.9V 1W DO213AB |
| Package | Tape & Reel (TR) | Tape & Reel (TR) |
| Series | Automotive, AEC-Q101 | Automotive, AEC-Q101 |
| Operating Temperature | 175°C | 175°C |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | DO-213AB, MELF (Glass) | DO-213AB, MELF (Glass) |
| Supplier Device Package | DO-213AB | DO-213AB |
| Tolerance | ±5% | ±5% |
| Power - Max | 1 W | 1 W |
| Voltage - Forward (Vf) (Max) @ If | - | - |
| Current - Reverse Leakage @ Vr | 500 nA @ 32 V | - |
| Voltage - Zener (Nom) (Vz) | 43 V | 3.9 V |
| Impedance (Max) (Zzt) | 80 Ohms | 7 Ohms |
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1. What are the disadvantages of Zener diodes?
Disadvantages include relatively high power consumption, sensitivity to temperature, and the need for proper heat dissipation.
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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 happens if a Zener diode is connected in reverse?
When a Zener diode is properly connected in reverse and a sufficient reverse voltage is applied to exceed its Zener voltage, it will begin to conduct and remain at a relatively constant voltage level.
