MMSZ5242B-13-F vs 1N5339WS
| Part Number |
|
|
| Category | Diodes - Zener - Single | Diodes - Zener - Single |
| Manufacturer | Diodes Incorporated | ON Semiconductor |
| Description | DIODE ZENER 12V 370MW SOD123 | DIODE ZENER 5.6V 5W AXIAL |
| Package | Tape & Reel (TR) | Bulk |
| Series | - | - |
| Operating Temperature | -65°C ~ 150°C | -65°C ~ 200°C |
| Mounting Type | Surface Mount | - |
| Package / Case | SOD-123 | - |
| Supplier Device Package | SOD-123 | - |
| Tolerance | ±5% | ±5% |
| Power - Max | 370 mW | 5 W |
| Voltage - Forward (Vf) (Max) @ If | 900 mV @ 10 mA | 1.2 V @ 1 A |
| Current - Reverse Leakage @ Vr | 1 µA @ 9.1 V | 1 µA @ 2 V |
| Voltage - Zener (Nom) (Vz) | 12 V | 5.6 V |
| Impedance (Max) (Zzt) | 30 Ohms | 1 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. 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. Where are Zener diodes used in real life?
Applied to power adapters, overvoltage protection in electronic devices, LED drive circuits, etc.
