| Allicdata Part #: | V321HC32-ND |
| Manufacturer Part#: |
V321HC32 |
| Price: | $ 8.06 |
| Product Category: | Circuit Protection |
| Manufacturer: | Littelfuse Inc. |
| Short Description: | VARISTOR 510V 25KA DISC 32MM |
| More Detail: | 510V 25kA Varistor 1 Circuit Bolt Mount Disc 32mm,... |
| DataSheet: |  V321HC32 Datasheet/PDF |
| Quantity: | 1000 |
| Moisture Sensitivity Level (MSL): | 1 (Unlimited) |
| Lead Free Status / RoHS Status: | Lead free / RoHS Compliant |
| 180 +: | $ 7.32564 |
Specifications
| Varistor Voltage (Typ): | 510V |
| Package / Case: | Disc 32mm, Formed Tabs |
| Mounting Type: | Bolt Mount |
| Operating Temperature: | -55°C ~ 85°C (TA) |
| Capacitance @ Frequency: | 1900pF @ 1MHz |
| Number of Circuits: | 1 |
| Energy: | 390J |
| Current - Surge: | 25kA |
| Varistor Voltage (Max): | 561V |
| Series: | HC |
| Varistor Voltage (Min): | 459V |
| Maximum DC Volts: | 420V |
| Maximum AC Volts: | 320V |
| Moisture Sensitivity Level (MSL): | -- |
| Part Status: | Active |
| Lead Free Status / RoHS Status: | -- |
| Packaging: | Bulk |
Description
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V321HC32 is a varistor, specifically a Metal Oxide Varistor (MOV). It is designed to provide overvoltage protection to electrical circuits, primarily from lightning surges and accidental contact with higher voltage sources. Varistors are a special type of resistor that can be used to provide overvoltage protection, and are widely used in consumer electronics, automotive, and telecommunications applications. In this article, we will discuss the application field and working principle of V321HC32.V321HC32 is a high current-rated varistor with a wide operating temperature range of -45°C to 125°C. It has a rated voltage of 320 VAC, and can withstand peak transient energy up to 75 Joules. The device has a wide dynamic range of 0.075V to 320 volts. It is available in an EIA DO-214AC (SMA) package. The device is designed for surge protection in power systems and automotive applications.The working principle of a varistor is based on its ability to change its resistance abruptly when subjected to an overvoltage. In the case of a MOV, like V321HC32, the device is made of two metal electrodes and a ceramic insulating layer in between. The electrodes are composed of zinc oxide or other metallic oxides, and are surrounded by an epoxy coating. When a voltage higher than the rated voltage is applied, an electric field is generated between the two electrodes, and this causes the particles of the metal oxides to break down and form pathways, resulting in a low resistance between the two electrodes. This low resistance path allows the excess voltage to pass through the MOV, dissipating the excess energy harmlessly.The V321HC32 has a number of advantageous features that make it an ideal choice for overvoltage protection. It is cost-effective, due to its small form factor and low cost of production, and is highly reliable, with good heat resistance and excellent electrical performance. In addition, it can provide robust surge protection, withstanding peak surge currents of up to 75A.In conclusion, the V321HC32 is a widely used metal-oxide varistor with a wide range of application fields and excellent performance. It is ideal for overvoltage protection in consumer electronics, automotive and telecommunications applications. The device is highly reliable, with good heat resistance and cost-effective production costs. By understanding its working principle, it is possible to see why the V321HC32 is such a popular choice for surge protection.
The specific data is subject to PDF, and the above content is for reference
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