| Allicdata Part #: | 1655-1376-2-ND |
| Manufacturer Part#: |
1N4755ATR |
| Price: | $ 0.04 |
| Product Category: | Discrete Semiconductor Products |
| Manufacturer: | SMC Diode Solutions |
| Short Description: | DIODE ZENER 43V 1W DO41 |
| More Detail: | Zener Diode 43V 1W ±5% Through Hole DO-41 |
| DataSheet: |  1N4755ATR Datasheet/PDF |
| Quantity: | 2500 |
| 5000 +: | $ 0.02969 |
| 10000 +: | $ 0.02524 |
| 25000 +: | $ 0.02375 |
| 50000 +: | $ 0.02226 |
| 125000 +: | $ 0.01979 |
Specifications
| Series: | -- |
| Packaging: | Tape & Reel (TR) |
| Part Status: | Active |
| Voltage - Zener (Nom) (Vz): | 43V |
| Tolerance: | ±5% |
| Power - Max: | 1W |
| Impedance (Max) (Zzt): | 70 Ohms |
| Current - Reverse Leakage @ Vr: | 5µA @ 32.7V |
| Voltage - Forward (Vf) (Max) @ If: | 1.2V @ 200mA |
| Operating Temperature: | 200°C |
| Mounting Type: | Through Hole |
| Package / Case: | DO-204AL, DO-41, Axial |
| Supplier Device Package: | DO-41 |
Description
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Introduction
1N4755ATR is a commonly used Zener diode. It has many excellent characteristics, such as low leakage current and high stability, making it widely used in many applications. The diode belongs to the single diode category, which is composed of a single p-n junction semiconductor.Application Field
1N4755ATR is mainly used in Level clamping, Voltage regulation, Surge suppression, Diode clipping, Reverse polarity protection and Reference circuit.- Level Clamping: This application is mainly used for rectifier output peak voltage suppression, for clamping the output voltage of the half-wave rectifier and the full-wave rectifier. It can also be used to suppress the voltage of the AC power source.
- Voltage Regulation: This application mainly uses the performance of the Zener diode to maintain a predetermined stable voltage. Usually, a zener diode and a resistor form a voltage regulator, ensuring that the output voltage is equal to the Zener voltage. In addition, it can be used to maintain a constant voltage on the power supply.
- Surge Suppression: This application mainly uses the reverse breakdown characteristics of Zener diodes to protect electronic equipment from damage caused by transient overvoltage or lightning interference.
- Diode Clipping: This application mainly uses the Zener diode to suppress the excess voltage of the input signal, and then adjusts the output signal to the predetermined voltage level. This can reduce the distortion of the output signal and improve the accuracy of the signal.
- Reverse Polarity Protection: This application mainly uses Zener diodes to protect the circuit from reverse voltage. When reverse voltage occurs, the diode will turn on and the current will flow through the diode to reduce the reverse voltage.
- Reference Circuit: This application mainly uses the reverse biased characteristic of the Zener diode to generate a reference voltage. It can stabilize the voltage of various circuit modules and improve the accuracy of the entire system.
Working Principle
The working principle of the 1N4755ATR diode is mainly related to its thermal characteristics and reverse bias characteristics. First of all, the junction of the Zener diode has the function of generating a small reverse leakage current, which is called a reverse bias characteristic. Under the condition of certain voltage, a certain current will be generated, and the voltage across the reverse bias junction is called the Zener voltage. Secondly, I-V curve of Zener diodes is not a straight line, and there is a certain voltage range of exponential increase in current. This phenomenon is called avalanche breakdown, which is related to the temperature and doping concentration of the PN junction. During the avalanche breakdown, the current increases exponentially with the increase of voltage, and the temperature of the junction also increases exponentially.Finally, the Zener diode will open the Zener effect, allowing a certain amount of current to pass through the diode. In this case, the diode will maintain the voltage at the Zener voltage, and the current through the diode does not depend on the applied voltage, so the diode becomes a voltage regulating device.Conclusion
To sum up, the 1N4755ATR is a single Zener diode with excellent performance characteristics and wide application fields. Its working principle is mainly related to its reverse bias characteristics, thermal characteristics and avalanche breakdown effect. Its main application fields are mainly related to voltage regulation, surge suppression, diode clipping and reverse polarity protection, etc.The specific data is subject to PDF, and the above content is for reference
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