VA0805K121R017

Series:	Automotive, AEC-Q200, VA
Packaging:	Tape & Reel (TR)
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Maximum AC Volts:	17V
Maximum DC Volts:	20V
Varistor Voltage (Min):	24.3V
Varistor Voltage (Typ):	27V
Varistor Voltage (Max):	29.7V
Current - Surge:	120A
Energy:	0.50J
Number of Circuits:	1
Mounting Type:	Surface Mount
Package / Case:	0805 (2012 Metric)

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Introduction

VAR0805K121R017, colloquially known as “MOV”, is an important type of safety component used in electrical circuits. A MOV is a Transient Voltage Suppression (TVS) device that works by clamping voltage spikes and protecting the downstream components from voltage surges that could potentially cause damage. It is commonly used in automotive, communications, industrial, medical, military and consumer electronics.

Basic Principle

MOVs utilize an insulation material, usually silicon, to increase air gap between two electrodes, forming a varistor. The MOVs are constructed in such a way that when a voltage surge larger than the MOV\'s rated voltage is applied, the insulation material between the two electrodes breaks down allowing a large trade current to flow to ground. The return current quickly dissipates the voltage between the two electrodes by creating a resistance that is inversely proportional to the surge voltage.

VAR0805K121R017 Features

VA0805K121R017 is a metal oxide varistor (MOV) with a clamp voltage of 10V and a peak current of 25 A. It has a maximum surge current of 5 A. Its operating temperature range is -40°C to 85°C. Its maximum standoff voltage is 5.5V, and its peak pulse current rating is 13.5A.

VA0805K121R017 Applications

VA0805K121R017 has a variety of applications, including:

• Telecommunications equipment
• Computer systems
• Consumer electronics
• Industrial electronics
• Automotive
• Medical
• Military

It is commonly used in telecommunications for antenna protection, in automotive applications such as overvoltage protection and in medical devices as a transient voltage suppressor. It is also used in industrial applications to protect equipment from power supply transients.

Conclusion

VA0805K121R017 is a metal oxide varistor with a clamp voltage of 10V and a peak current of 25 A. It has a wide variety of applications in telecommunications, automotive, medical, industrial, military, and consumer electronics. Its maximum surge current rating is 5 A and its operating temperature range is -40°C to 85°C.

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