BZD27C180P MQG vs BZD27C160P MQG
| 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 162V 1W SUB SMA |
| Package | Tape & Reel (TR) | Cut Tape (CT) |
| 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 @ 120 V |
| Voltage - Zener (Nom) (Vz) | 179.5 V | 162 V |
| Impedance (Max) (Zzt) | 450 Ohms | 350 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. Can 2 Zener diodes be connected in series?
Yes, two or more Zener diodes can be used in series to obtain higher stable voltage values. But pay attention to the power rating and heat dissipation of each diode.
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3. How to tell if a diode is a Zener diode?
You can tell by looking at its symbol (which is slightly different from ordinary diodes), the description in the data sheet, or by testing its reverse characteristic curve. Using a multimeter, you can also measure its forward and reverse resistance values and the voltage drop under specific conditions.
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4. What are the special uses of Zener diodes?
Special uses include precision voltage references, overvoltage protection circuits, etc.
