ZM4730A-GS18 vs 1SMB5930 M4G
| Part Number |
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| Category | Diodes - Zener - Single | Diodes - Zener - Single |
| Manufacturer | Vishay Semiconductor - Diodes Division | Taiwan Semiconductor Corporation |
| Description | DIODE ZENER 3.9V 1W DO213AB | DIODE ZENER 16V 3W DO214AA |
| Package | Tape & Reel (TR) | Tape & Reel (TR) |
| Series | Automotive, AEC-Q101 | - |
| Operating Temperature | 175°C | -55°C ~ 150°C (TJ) |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | DO-213AB, MELF (Glass) | DO-214AA, SMB |
| Supplier Device Package | DO-213AB | DO-214AA (SMB) |
| Tolerance | ±5% | ±5% |
| Power - Max | 1 W | 3 W |
| Voltage - Forward (Vf) (Max) @ If | - | - |
| Current - Reverse Leakage @ Vr | 50 µA @ 1 V | 1 µA @ 12.2 V |
| Voltage - Zener (Nom) (Vz) | 3.9 V | 16 V |
| Impedance (Max) (Zzt) | 9 Ohms | 10 Ohms |
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1. What are the two types of Zener diodes?
Zener diodes are mainly divided into two types: one that works based on the avalanche effect (usually in high voltage applications) and the other that works based on the Zener breakdown mechanism (suitable for lower voltages).
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2. Is every diode a Zener diode?
No. Although all Zener diodes are a type of diode, not all diodes can be called Zener diodes.
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3. 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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4. What happens when a Zener diode fails?
If it is overheated or subjected to excessive current, it may cause permanent damage, which will appear as an open or short circuit state.
