ZMY43-GS18 vs ZMY33-GS18
| Part Number |
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| Category | Diodes - Zener - Single | Diodes - Zener - Single |
| Manufacturer | Vishay Semiconductor - Diodes Division | Vishay Semiconductor - Diodes Division |
| Description | DIODE ZENER 43V 1W DO213AB | DIODE ZENER 33V 1W DO213AB |
| Package | Tape & Reel (TR) | -Reel® |
| Series | Automotive, AEC-Q101 | Automotive, AEC-Q101 |
| Operating Temperature | 175°C | 175°C |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | DO-213AB, MELF (Glass) | DO-213AB, MELF (Glass) |
| Supplier Device Package | DO-213AB | DO-213AB |
| Tolerance | ±5% | ±5% |
| Power - Max | 1 W | 1 W |
| Voltage - Forward (Vf) (Max) @ If | - | - |
| Current - Reverse Leakage @ Vr | 500 nA @ 32 V | 500 nA @ 25 V |
| Voltage - Zener (Nom) (Vz) | 43 V | 33 V |
| Impedance (Max) (Zzt) | 80 Ohms | 20 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. 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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3. 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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4. What are the special uses of Zener diodes?
Special uses include precision voltage references, overvoltage protection circuits, etc.
