BZD27C11PHRQG vs BZD27C11PHMQG
| Part Number |
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| Category | Diodes - Zener - Single | Diodes - Zener - Single |
| Manufacturer | Taiwan Semiconductor Corporation | Taiwan Semiconductor Corporation |
| Description | DIODE ZENER 11V 1W SUB SMA | DIODE ZENER 11V 1W SUB SMA |
| Package | Tape & Reel (TR) | Tape & Reel (TR) |
| Series | Automotive, AEC-Q101 | Automotive, AEC-Q101 |
| 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 | ±5.45% | ±5.45% |
| 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 | 4 µA @ 8.2 V | 4 µA @ 8.2 V |
| Voltage - Zener (Nom) (Vz) | 11 V | 11 V |
| Impedance (Max) (Zzt) | 7 Ohms | 7 Ohms |
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1. 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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2. 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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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. What are the special uses of Zener diodes?
Special uses include precision voltage references, overvoltage protection circuits, etc.
