TZM5262F-GS18 vs ZMM5237B-7
| 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 51V 500MW SOD80 | DIODE ZENER 8.2V 500MW DO213AA |
| Package | Tape & Reel (TR) | Tape & Reel (TR) |
| Series | Automotive, AEC-Q101 | - |
| Operating Temperature | 175°C | -65°C ~ 175°C |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | DO-213AC, MINI-MELF, SOD-80 | DO-213AA (Glass) |
| Supplier Device Package | SOD-80 MiniMELF | DO-213AA (GL34) |
| Tolerance | - | ±5% |
| Power - Max | 500 mW | 500 mW |
| Voltage - Forward (Vf) (Max) @ If | 1.1 V @ 200 mA | 1.5 V @ 200 mA |
| Current - Reverse Leakage @ Vr | 100 nA @ 39 V | 3 µA @ 6.5 V |
| Voltage - Zener (Nom) (Vz) | 51 V | 8.2 V |
| Impedance (Max) (Zzt) | 1.1 kOhms | 8 Ohms |
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1. What is the difference between a Zener diode and a Schottky diode?
Schottky diodes have a low forward voltage drop and fast switching speed, making them suitable for high-frequency applications. In contrast, Zener diodes are mainly used for voltage regulation and voltage stabilization.
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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. 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 when a Zener diode fails?
If it is overheated or subjected to excessive current, it may cause permanent damage, which will appear as an open or short circuit state.
