V120MLA1210A

Varistor Voltage (Typ):	150V
Package / Case:	1210 (3225 Metric)
Mounting Type:	Surface Mount, MLCV
Operating Temperature:	-55°C ~ 125°C (TA)
Capacitance @ Frequency:	80pF @ 1MHz
Number of Circuits:	1
Energy:	2.0J
Current - Surge:	125A
Varistor Voltage (Max):	165V
Series:	MLA
Varistor Voltage (Min):	135V
Maximum DC Volts:	120V
Maximum AC Volts:	107V
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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The V120MLA1210A is a transient voltage suppressor (TVS) which is similar to both Varistors and Metal Oxide Varistors (MOVs). It is used to protect sensitive electronic equipment from damage caused by voltage spikes and electrical transients. In the following sections, the application field, working principles, and internal components of this component are discussed.

Application Field

The V120MLA1210A can be found in a variety of applications such as automotive, medical, and consumer electronic equipment. This TVS is suitable for a variety of power supplies, including AC, DC, and isolated supplies. It is commonly used to protect voltage regulators, data links, and instrumentation equipment from voltage spikes and transients. In addition, it is used in applications in which high peak power surges need to be suppressed.

Working Principle

In the V120MLA1210A, the positive voltage transient is attenuated by an internal diode and the negative voltage transient is suppressed by an internal inductor. When a voltage spike or transient is detected, the diode and inductor work together to reduce the voltage and divert the current away from sensitive components. This helps protect the equipment from voltage spikes or transients which can cause damage. Additionally, this component is able to self-heal and recover after voltage surges are detected.

Internal Components

The V120MLA1210A consists of two main components: the integrated diode and the integrated inductor. The integrated diode functions as a voltage clamp, while the integrated inductor functions as a current diverter. Both of these components work together to divert voltage and current surges away from sensitive electronic components. Additionally, this component features a polyimide encapsulation which ensures reliability and durability in even the most severe conditions.

The V120MLA1210A is a vital component which helps protect electronic equipment from damage due to voltage spikes and electrical transients. This component is capable of attenuating positive voltage transients, suppressing negative voltage transients, and self-healing after voltage surges. It is suitable for a wide variety of applications, including automotive, medical, and consumer electronics, as well as AC, DC, and isolated supplies. It is highly reliable and durable due to its polyimide encapsulation and efficient internal components which help divert voltage and current surges.

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