SMAZ5919B-M3/5A vs SMAZ5921B-M3/5A
| 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 5.6V 500MW DO214AC | DIODE ZENER 6.8V 500MW DO214AC |
| Package | Bulk | Tape & Reel (TR) |
| Series | - | - |
| Operating Temperature | -65°C ~ 150°C | -65°C ~ 150°C |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | DO-214AC, SMA | DO-214AC, SMA |
| Supplier Device Package | DO-214AC (SMA) | DO-214AC (SMA) |
| Tolerance | ±5% | ±5% |
| Power - Max | 500 mW | 500 mW |
| Voltage - Forward (Vf) (Max) @ If | 1.5 V @ 200 mA | 1.5 V @ 200 mA |
| Current - Reverse Leakage @ Vr | 200 µA @ 3 V | 200 µA @ 5.2 V |
| Voltage - Zener (Nom) (Vz) | 5.6 V | 6.8 V |
| Impedance (Max) (Zzt) | 5 Ohms | 2.5 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. 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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3. 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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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.
