TZM5262F-GS18 vs ZMM5237B-13
| 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 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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2. 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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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 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.
