VE1812K801R030 Circuit Protection |
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Allicdata Part #: | 399-17694-2-ND |
Manufacturer Part#: |
VE1812K801R030 |
Price: | $ 0.25 |
Product Category: | Circuit Protection |
Manufacturer: | KEMET |
Short Description: | VARISTOR 47V 800A 1812 |
More Detail: | 47V 800A Varistor 1 Circuit Surface Mount 1812 (45... |
DataSheet: | VE1812K801R030 Datasheet/PDF |
Quantity: | 1000 |
Lead Free Status / RoHS Status: | Lead free / RoHS Compliant |
Moisture Sensitivity Level (MSL): | 2 (1 Year) |
3500 +: | $ 0.22901 |
7000 +: | $ 0.21322 |
10500 +: | $ 0.20532 |
24500 +: | $ 0.19743 |
Series: | Automotive, AEC-Q200, VE |
Packaging: | Tape & Reel (TR) |
Lead Free Status / RoHS Status: | -- |
Part Status: | Active |
Moisture Sensitivity Level (MSL): | -- |
Maximum AC Volts: | 30V |
Maximum DC Volts: | 38V |
Varistor Voltage (Min): | 42.3V |
Varistor Voltage (Typ): | 47V |
Varistor Voltage (Max): | 51.7V |
Current - Surge: | 800A |
Energy: | 4.4J |
Number of Circuits: | 1 |
Capacitance @ Frequency: | 1800pF @ 1kHz |
Operating Temperature: | -55°C ~ 150°C (TA) |
Mounting Type: | Surface Mount |
Package / Case: | 1812 (4532 Metric) |
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TVS (Transient Voltage Suppressors) is an important type of overvoltage protection device designed to protect against transient electrical impulses such as electrical surges, lightning strikes, and the like. TVS is composed of various types of components. Varistors, MOVs (Metal Oxide Varistors), Gas Discharge Tubes (GDTs), Zener Diodes, and Silicon Avalanche Diodes (SADs) are just some of them. In this article, we will discuss the application field and working principle of one type of varistor, the VE1812K801R030.
Application Field of VE1812K801R030
The VE1812K801R030 is a high-performance varistor with a low stand-off voltage and very high energy-dissipation capabilities. It is ideal for use in a wide range of high-voltage applications, including power supplies, inverters, amplifiers, large capacitors, and more. It is designed to effectively suppress transient overvoltage up to 24V, making it suitable for both ac and dc power applications.
The VE1812K801R030 is also well-suited for use in telecommunications and automotive applications. It is designed to protect communication equipment and other sensitive electronics from transient overvoltage surges. In automotive applications, it can be used to protect a vehicle’s sensitive electronic components, such as its engine control unit (ECU), against voltage and spike transients.
Working Principle of VE1812K801R030
The working principle of the VE1812K801R030 is similar to that of other varistors. It is composed of a semiconductor material with a high dielectric constant. The varistor is then connected in series with the load, with the load being connected in parallel with the varistor. When a large over-voltage surge is applied, the varistor’s resistance becomes extremely low, allowing most of the excess voltage to be bypassed to ground.
When the voltage across the varistor is within the operating range, its resistance increases significantly, thereby reducing the excess voltage being transmitted to the protected components. This way, the varistor acts as a voltage-sensitive element, providing over-voltage protection to sensitive components. The VE1812K801R030 has a wide operating temperature range and is designed to provide reliable protection even in near-zero temperatures.
Conclusion
The VE1812K801R030 is a high-performance varistor designed for use in a wide range of high-voltage applications. It is an ideal choice for use in telecommunications and automotive applications, where it can provide reliable protection against transient overvoltage surges. Its working principle is relatively simple, but it is able to provide very effective protection against overvoltage transients. As such, it is an important component in any system that requires reliable overvoltage protection.
The specific data is subject to PDF, and the above content is for reference
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