| Allicdata Part #: | 1N728-ND |
| Manufacturer Part#: |
1N728 |
| Price: | $ 1.39 |
| Product Category: | Discrete Semiconductor Products |
| Manufacturer: | Microsemi Corporation |
| Short Description: | DIODE ZENER 39V 250MW DO35 |
| More Detail: | Zener Diode 39V 250mW ±10% Through Hole DO-35 |
| DataSheet: |  1N728 Datasheet/PDF |
| Quantity: | 1000 |
| 491 +: | $ 1.24825 |
Specifications
| Series: | -- |
| Packaging: | Bulk |
| Part Status: | Active |
| Voltage - Zener (Nom) (Vz): | 39V |
| Tolerance: | ±10% |
| Power - Max: | 250mW |
| Impedance (Max) (Zzt): | 70 Ohms |
| Operating Temperature: | -- |
| Mounting Type: | Through Hole |
| Package / Case: | DO-204AH, DO-35, Axial |
| Supplier Device Package: | DO-35 |
Description
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1N728 is a zener diode that uses two back-to-back Zener diodes for voltage regulation. It is a high voltage, high power, fast switching diode, usually used in high-power applications. It is also used to reduce noise and act as a voltage regulator.
Introduction
1N728 is a high-voltage, high-power, fast-switching diode made by Insulated Gate Bipolar Transistor (IGBT) technology. It is a Zener diode with two back-to-back Zener diodes for voltage regulation. This diode is used in high-power applications, like those of medium to large power supplies, like 45V to 195V peak operating voltages. The 1N728 can handle a large range of heavy loads up to 17A. It also has a very low dynamic resistance of 110 ohms.Application fields of 1N728
1N728 is a versatile diode used in numerous applications. It can be used as a power electronic switch, voltage regulator, and act as a low-frequency oscillator. As a power electronic switch, it can be used in many applications like power supplies, switching circuits, thyristors and industrial controllers. As a voltage regulator, it can be used in power supplies, motor control circuits and voltage-controlled oscillators. Its low dynamic resistance allows it to be used in low-frequency oscillators.Moreover, it is used to reduce noise and suppress ripple. Ripple is a type of electrical current that is irregular in frequency and amplitude, and it needs to be suppressed or attenuated in order to maintain a stable voltage. 1N728’s high breakdown voltage makes it suitable for this application. In addition, 1N728 is not only used to reduce noise, but also to stabilize the output voltage of high-power systems.Working Principle of 1N728
The 1N728 uses two back-to-back Zener diodes to regulate voltage. When the voltage across the diode increases, the Zener diode begins to conduct and the current decreases. This process creates a voltage drop on the diode, reducing the voltage level. This is called the Zener voltage and it is the same across both diodes.Moreover, when the current passes through the 1N728, it creates a voltage drop, which is known as the dynamic resistance. The dynamic resistance increases with a decrease in current and decreases with an increase in current. This allows for precise control over the output voltage.Finally, the 1N728 also has two mode of operation: the forward and reverse bias. The forward bias is when the current is flowing from the anode to the cathode, and the reverse bias is when the current is flowing from the cathode to the anode. The 1N728 can be used in either mode depending on the application.Conclusion
1N728 is a versatile and powerful diode with applications in a range of industries. It is a fast-switching, high-power Zener diode, perfect for voltage regulation and power electronic switching in high-power applications. It has a low dynamic resistance, allowing precise control of the output voltage and can be used in either forward or reverse bias. Its high breakdown voltage makes it ideal for noise reduction and ripple suppression, helping to maintain consistent voltage levels.The specific data is subject to PDF, and the above content is for reference
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