V20E420PL4B7

Varistor Voltage (Typ):	680V
Package / Case:	Disc 20mm
Mounting Type:	Through Hole
Operating Temperature:	-55°C ~ 85°C (TA)
Capacitance @ Frequency:	600pF @ 1MHz
Number of Circuits:	1
Energy:	320J
Current - Surge:	10kA
Varistor Voltage (Max):	748V
Series:	UltraMOV™
Varistor Voltage (Min):	612V
Maximum DC Volts:	560V
Maximum AC Volts:	420V
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Introduction

V20E420PL4B7 is a TVS-Varistors, MOVs (Metal-Oxide Varistors, MOVs and Varistor discharge protection devices). It is a series of Unipolar devices that protect against over-voltage transients and load cycling. These devices provide high peak pulse capability with an adjustable trip time that can be used in a wide range of applications.

Application Field

The V20E420PL4B7 can be used in a variety of applications, including:

• Personal Electronics
• Automotive Electronics
• Industrial Electronics
• Lighting

The device can also be used in applications such as:

• Telecommunications
• Computer systems
• Wireless communication systems

Working Principle

The working principle of the V20E420PL4B7 is that it is a unipolar device which utilizes the Stepped Metal-Oxide Varistor (MOV) concept. The principle of the Stepped MOV is that it has a diode-like body, with two semiconductor layers between the anode and the cathode. When subjected to an overt voltage, the MOV body — the diode — will allow current to flow through it, discharging the excess energy. The V20E420PL4B7 limits the current to a safe value, thus protecting the equipment from over-voltage transients and load cycling.

Conclusion

The V20E420PL4B7 is a high peak pulse capability Unipolar Metal-Oxide Varistor (MOV) and Varistor Discharge Protection (VDP) device that can be used in a variety of applications. It is designed to limit current and thus protect against overvoltage transients and load cycling. The device’s adjustable trip time makes it suitable for use in a wide range of applications, including personal electronics, automotive electronics, industrial electronics, lighting, telecommunications, wireless communication systems and computer systems.

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