CLL5247B TR vs DL5249B-TP
| Part Number |
|
|
| Category | Diodes - Zener - Single | Diodes - Zener - Single |
| Manufacturer | Central Semiconductor Corp | Micro Commercial Co |
| Description | DIODE ZENER 17V 500MW SOD80 | DIODE ZENER 19V 500MW MINI MELF |
| Package | DO-213AC, MINI-MELF, SOD-80 | -Reel® |
| Series | - | - |
| Operating Temperature | -65°C ~ 200°C | -65°C ~ 175°C |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | DO-213AC, MINI-MELF, SOD-80 | DO-213AC, MINI-MELF, SOD-80 |
| Supplier Device Package | SOD-80 | Mini MELF |
| Tolerance | ±5% | ±5% |
| Power - Max | 500mW | 500 mW |
| Voltage - Forward (Vf) (Max) @ If | 1.25V @ 200mA | 1.1 V @ 200 mA |
| Current - Reverse Leakage @ Vr | 100nA @ 13V | 100 nA @ 14 V |
| Voltage - Zener (Nom) (Vz) | 17V | 19 V |
| Impedance (Max) (Zzt) | 19 Ohms | 23 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. Are Zener diodes unidirectional?
In normal operation mode, Zener diodes do exhibit unidirectional conductivity, but they start conducting when reverse biased to their Zener voltage.
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3. 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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4. Where are Zener diodes used in real life?
Applied to power adapters, overvoltage protection in electronic devices, LED drive circuits, etc.
