V230LA20APX2855

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A varistor or voltage-dependent resistor (VDR) is a component mainly used to protect circuits from overvoltage transients. The V230LA20APX2855 is a type of varistor with a relatively high clamping voltage range (280 V to 420 V).

Applications of V230LA20APX2855 varistors include protection of electronic circuits from lightning, ESD (electrostatic discharge) and other surge transients. It can be used in a variety of industries such as automotive, consumer electronics, instrumentation, and medical devices as an overvoltage protection device. It can also be used in power supplies, electric motors, and HVAC/R systems.

The working principle of the V230LA20APX2855 is based on its parasitic diode. When the voltage exceeds the VDR\'s rated clamping voltage (V_CL), a low forward current (I_FS) flows through the diode, clamping the voltage to a safe level. The clamping voltage is determined by the combination of the voltage coefficient of the VDR and its capacitor-like quality that can store/leak energy, until the voltage returns to its normal level.

The V230LA20APX2855 has a high peak power rating (50W) ensuring its ability to absorb large transient energies. It also offers a low leakage current (5 μA max. @ 2V), thereby minimizing the effect of residual voltage across the VDR. Furthermore, the device’s low inductance (<0.07 µH) helps minimize power losses. This low inductance also allows for low surge voltages and fast response times.

V230LA20APX2855 varistors have robust construction with epoxy resin coating that makes them highly resistant to humidity as well as to abrasion and corrosion. The product is UL certified and meets the EN 132400 (1760) standard. In addition, it can be easily installed with no additional hardware and has a wide operating temperature range from -55°C to 125°C.

Overall, the V230LA20APX2855 is a high-performance, cost-effective varistor designed to provide efficient overvoltage protection for a wide variety of applications. Its high clamping voltage range, low leakage current, high peak power rating, low inductance, and robust construction make it an ideal choice for various protection requirements.

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