ERZ-VF2M431

Series:	ZNR®
Packaging:	Tape & Reel (TR)
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Maximum AC Volts:	275V
Maximum DC Volts:	350V
Varistor Voltage (Min):	387V
Varistor Voltage (Typ):	430V
Varistor Voltage (Max):	473V
Current - Surge:	300A
Energy:	10J
Number of Circuits:	1
Operating Temperature:	-40°C ~ 85°C (TA)
Mounting Type:	Surface Mount, MLCV
Package / Case:	2-SMD, J-Lead

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Introduction

ERZ-VF2M431 is a two-function Varistor designed for transient overvoltage protection. This type of protection has been used for years to protect sensitive electrical equipment from voltage overloads that can occur due to lightning strikes. The varistor is a voltage-dependent, resistor-type device that functions as a voltage clamp to absorb most of the energy of a transient overvoltage. The ERZ-VF2M431 is composed of a charge-storing varistor element and a metal-oxide varistor (MOV) which combine protection from both overvoltages and surges.

Application Field and Working Principle

The ERZ-VF2M431 is mainly used in AC power lines with ground, and for DC power signals. It can also be used for other types of sensitive equipment. The ERZ-VF2M431 includes two protection functions: Varistors and MOVs. Varistors are voltage-dependent resistors. In other words, their resistance changes depending on the applied voltage. This voltage-dependent resistance can be used to provide transient overvoltage protection for a circuit. The MOVs act as a second line of defense in the event of a transient overvoltage. In the event of a surge, the MOV will clamp the voltage down, limiting the damage to the circuit. Together, the Varistor and MOV provide a comprehensive protection system for sensitive equipment from harmful transient overvoltages and surges. The ERZ-VF2M431 is designed to protect circuits from overvoltages up to 1430V (PEAK), with a holding voltage of 930V.

Conclusion

The ERZ-VF2M431 is a two-function Varistor designed for transient overvoltage protection. It is mainly used in AC power lines with ground, and for DC power signals, as well as other applications. This device includes two protection functions: Varistors and MOVs. Varistors are voltage-dependent resistors that provide protection from transient overvoltages. The MOVs act as a second line of defense in the event of a surge. Together, these two functions provide a comprehensive protection system for sensitive equipment from transient overvoltages and surges.

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