ZM4749A-GS18 vs ZM4750A-GS18
| Part Number |
|
|
| Category | Diodes - Zener - Single | Diodes - Zener - Single |
| Manufacturer | Vishay Semiconductor - Diodes Division | Vishay Semiconductor - Diodes Division |
| Description | DIODE ZENER 24V 1W DO213AB | DIODE ZENER 27V 1W DO213AB |
| Package | -Reel® | Tape & Reel (TR) |
| 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 | 5 µA @ 18.2 V | 5 µA @ 20.6 V |
| Voltage - Zener (Nom) (Vz) | 24 V | 27 V |
| Impedance (Max) (Zzt) | 25 Ohms | 35 Ohms |
-
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).
-
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.
-
3. Is every diode a Zener diode?
No. Although all Zener diodes are a type of diode, not all diodes can be called Zener diodes.
-
4. Can Zener diodes be used as rectifiers?
This is generally not recommended because they are not designed to efficiently convert AC to DC. Rectification is usually done by specialized rectifier diodes.
