Varistor Voltages 34s471k 60KA Metal Oxide Epoxy Resin Film Zinc Oxide Varistor 275v

34S plug-in varistor OBO lightning protection overvoltage protection surge absorber

The varistor MYL34S is mainly used to limit harmful atmospheric overvoltage and operating overvoltage, and can effectively protect the system or equipment:

1. In the power industry, varistor materials are often used to make lightning arrester valve plates. High-voltage insulators made of zinc oxide varistor have both insulation and transient overvoltage protection.

2. In electronic circuits, it has overvoltage protection, lightning protection, surge current suppression, peak pulse absorption, amplitude limiting, high-voltage arc extinguishing, noise elimination, and protection of semiconductor devices.
Features:
1. Large current capacity IN20KA/IMAX45KA
2. Epoxy resin insulation encapsulation;
3. Response time: <25ns
4. Ambient temperature: -40℃～+85℃
5. Insulation resistance ≥500MΩ
6. Varistor voltage temperature coefficient: -0.5%/℃
7. Chip diameter: 32, 34S, 50mm
8. The allowable deviation of varistor voltage is: K±10%, L±15%
9. Low leakage current
10. Limit voltage VC: 1350V; IC: 200A
Varistor 32D series:
32D201K, 32D241K, 32D271K, 32D331K, 32D361K, 32D391K, 32D431K,
32D471K, 32D511K, 32D621K, 32D681K, 32D751K, 32D781K, 32D821K,
32D911K, 32D951K, 32D102K, 32D112K

Varistor 34S square type:
34S201K, 34S221K
34S241K, 34S271K
34S301K, 34S331K
34S361K, 34S391K
34S431K, 34S471K
34S511K, 34S561K
34S621K, 34S681K
34S751K, 34S781K
34S821K, 34S911K
34S951K, 34S102K
34S122K, 34S142K
34S162K, 34S182K

Small Size MOV Metal Oxide Varistor Wide Working Voltage Range Response Speed Is Fast

The main characteristics of varistors are wide operating voltage range (6~3000V, divided into several grades), fast response to overvoltage pulses (nanosecond level), strong impact current resistance (100~2000a), and small leakage current (micro An level), small temperature coefficient of resistance, high performance, low price, small size. It is an ideal protection component, which can form overvoltage protection circuit, muffler circuit, spark suppression circuit, and absorption circuit. When the overvoltage pulse is superimposed on the power network, after connecting the rheostat, the overvoltage peak waveform is flattened and limited within a certain range. When using inductance and capacitance to open or close the load circuit, the switch tip pulse appears in the DC waveform, and the varistor can absorb the counter electromotive force in the circuit, thus effectively protecting the switch circuit from damage

Commonly used varistors include silicon carbide varistors and zinc oxide varistors, among which zinc oxide varistors are widely used. It is a new type of ideal overvoltage protection device made of zinc oxide as the main raw material, adding various trace metal oxides, mixed molding, and sintered assembly. Its conductivity varies nonlinearly with the applied voltage, which is called a varistor or a surge absorber

The nominal voltage or varistor voltage U1mA under DC voltage conditions, when the varistor flows through the specified current, its terminal voltage is called the varistor voltage of the varistor. Generally, the terminal voltage when the varistor flows through a DC 1mA is called the varistor voltage U1mA. For rheostats with a diameter less than or equal to 5mm, take 0.1mA as the nominal voltage measurement point. For low-voltage large-diameter products, there is also 20 mA to represent the nominal voltage.

Production Process / Quality Control​

Application

1. Varistor voltage: refers to the voltage value across the varistor at a specified temperature and DC (generally 1mA or 0.1mA). Recorded as V1mA or V0.1mAo
2. Maximum continuous voltage: refers to the maximum effective value of sinusoidal AC voltage or the maximum DC voltage value that can be continuously applied to both ends of the varistor for a long time under the specified ambient temperature
3. Limiting voltage: refers to the maximum peak voltage at both ends of the varistor when a specified surge current (8,20μs) passes through it.
4. Rated power: refers to the maximum average impact power that can be applied to the varistor under the specified ambient temperature.
5. Maximum energy: the maximum impact energy that can be applied to the varistor under the condition that the varistor voltage does not change more than ±10% and the impulse current waveform is 10, 1000μs or 2ms.
6. Current capacity (maximum inrush current)