SMAJ4743A-TP vs 1SMB5950B-13
| Part Number |
|
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| Category | Diodes - Zener - Single | Diodes - Zener - Single |
| Manufacturer | Micro Commercial Co | Diodes Incorporated |
| Description | DIODE ZENER 13V 1W DO214AC | DIODE ZENER 110V 3W SMB |
| Package | Tape & Reel (TR) | -Reel® |
| Series | - | - |
| Operating Temperature | -65°C ~ 150°C | -65°C ~ 150°C |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | DO-214AC, SMA | DO-214AA, SMB |
| Supplier Device Package | DO-214AC (SMA) | SMB |
| Tolerance | ±5% | ±5% |
| Power - Max | 1 W | 3 W |
| Voltage - Forward (Vf) (Max) @ If | 1.2 V @ 100 mA | 1.5 V @ 200 mA |
| Current - Reverse Leakage @ Vr | 5 µA @ 9.9 V | 1 µA @ 83.6 V |
| Voltage - Zener (Nom) (Vz) | 13 V | 110 V |
| Impedance (Max) (Zzt) | 10 Ohms | 300 Ohms |
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1. What is the difference between a diode and a Zener diode?
While a normal diode is mainly used for unidirectional current flow, a Zener diode is designed to provide a stable voltage reference point when reverse biased. A normal diode conducts when forward biased and does not conduct or has only a small leakage current when reverse biased; a Zener diode can start conducting after reaching a specific reverse voltage (called the Zener voltage).
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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. 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.
