SMAJ4743A-TP vs 1SMB5945B-13
| Part Number |
|
|
| Category | Diodes - Zener - Single | Diodes - Zener - Single |
| Manufacturer | Micro Commercial Co | Diodes Incorporated |
| Description | DIODE ZENER 13V 1W DO214AC | DIODE ZENER 68V 3W SMB |
| Package | Tape & Reel (TR) | Cut Tape (CT) |
| Series | - | - |
| Operating Temperature | -65°C ~ 150°C | -65°C ~ 150°C |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | DO-214AC, SMA | DO-214AA, SMB |
| Supplier Device Package | DO-214AC (SMA) | SMB |
| Tolerance | ±5% | ±5% |
| Power - Max | 1 W | 3 W |
| Voltage - Forward (Vf) (Max) @ If | 1.2 V @ 100 mA | 1.5 V @ 200 mA |
| Current - Reverse Leakage @ Vr | 5 µA @ 9.9 V | 1 µA @ 51.7 V |
| Voltage - Zener (Nom) (Vz) | 13 V | 68 V |
| Impedance (Max) (Zzt) | 10 Ohms | 120 Ohms |
-
1. What are the two types of Zener diodes?
Zener diodes are mainly divided into two types: one that works based on the avalanche effect (usually in high voltage applications) and the other that works based on the Zener breakdown mechanism (suitable for lower voltages).
-
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.
-
3. What are the disadvantages of Zener diodes?
Disadvantages include relatively high power consumption, sensitivity to temperature, and the need for proper heat dissipation.
-
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.
