MMSZ5242B-13-F vs CLL4762A TR
| Part Number |
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| Category | Diodes - Zener - Single | Diodes - Zener - Single |
| Manufacturer | Diodes Incorporated | Central Semiconductor Corp |
| Description | DIODE ZENER 12V 370MW SOD123 | DIODE ZENER 82V 1W MELF |
| Package | Tape & Reel (TR) | Tape & Reel (TR) |
| Series | - | - |
| Operating Temperature | -65°C ~ 150°C | -65°C ~ 200°C |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | SOD-123 | DO-213AB, MELF |
| Supplier Device Package | SOD-123 | MELF |
| Tolerance | ±5% | ±5% |
| Power - Max | 370 mW | 1 W |
| Voltage - Forward (Vf) (Max) @ If | 900 mV @ 10 mA | 1.2 V @ 200 mA |
| Current - Reverse Leakage @ Vr | 1 µA @ 9.1 V | 5 µA @ 62.2 V |
| Voltage - Zener (Nom) (Vz) | 12 V | 82 V |
| Impedance (Max) (Zzt) | 30 Ohms | 200 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 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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3. What are Zener diodes used for?
They are mainly used for voltage regulation, protecting circuits from overvoltage damage, and as a voltage reference source.
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4. What is the difference between a Zener diode and a Schottky diode?
Schottky diodes have a low forward voltage drop and fast switching speed, making them suitable for high-frequency applications. In contrast, Zener diodes are mainly used for voltage regulation and voltage stabilization.

