BZD27C180P MQG vs BZD27C16P RQG
| Part Number |
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| Category | Diodes - Zener - Single | Diodes - Zener - Single |
| Manufacturer | Taiwan Semiconductor Corporation | Taiwan Semiconductor Corporation |
| Description | DIODE ZENER 179.5V 1W SUB SMA | DIODE ZENER 16.2V 1W SUB SMA |
| Package | Tape & Reel (TR) | Tape & Reel (TR) |
| Series | - | - |
| Operating Temperature | -55°C ~ 175°C (TJ) | -55°C ~ 175°C (TJ) |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | DO-219AB | DO-219AB |
| Supplier Device Package | Sub SMA | Sub SMA |
| Tolerance | ±6.4% | ±5.55% |
| Power - Max | 1 W | 1 W |
| Voltage - Forward (Vf) (Max) @ If | 1.2 V @ 200 mA | 1.2 V @ 200 mA |
| Current - Reverse Leakage @ Vr | 1 µA @ 130 V | 1 µA @ 12 V |
| Voltage - Zener (Nom) (Vz) | 179.5 V | 16.2 V |
| Impedance (Max) (Zzt) | 450 Ohms | 15 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. 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.
