V18AUMLA1812NT

Series:	Automotive, AEC-Q200, AUML
Packaging:	Tape & Reel (TR)
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Maximum AC Volts:	14V
Maximum DC Volts:	18V
Varistor Voltage (Min):	23V
Varistor Voltage (Typ):	27.5V
Varistor Voltage (Max):	32V
Energy:	6.0J
Number of Circuits:	1
Operating Temperature:	-55°C ~ 125°C (TA)
Mounting Type:	Surface Mount, MLCV
Package / Case:	1812 (4532 Metric)

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V18AUMLA1812NT Application Field and Working Principle

TVS (Transient Voltage Suppressors) are specialized semiconductor devices that protect sensitive electronics, components and circuitry from electrical transients or overvoltage events. The V18AUMLA1812NT is one such device, which is a varistor characterized by low capacitance and low clamping voltage. Its electrical characteristics are suitable for EMI/RFI suppression and other applications where the combination of low capacitance and low clamping voltage is paramount. The V18AUMLA1812NT is part of a family of varistors characterized by their very low capacitance values, making them ideal for EMI/RFI noise suppression. This makes them ideal for use in automotive, telecommunications, computers, and other electronic systems. The V18AUMLA1812NT has a range of capacitance values, ranging from 5pF to 150pF, making it suitable for a wide range of applications.

How Does it Work?

TVS-type devices like the V18AUMLA1812NT operate by using a two-stage process to suppress an incoming voltage spike. The first stage is the varistor stage, where the incoming voltage is reduced by a process known as reversed-biased breakdown. This voltage reduction occurs when the voltage across the device is greater than the breakdown voltage (Vbo) of the device.The second stage is the MOV (Metal-Oxide Varistor) stage, where the voltage is further reduced by a process known as avalanche breakdown. This occurs when the MOV is subjected to a voltage higher than its avalanche voltage (Vav). Due to the low capacitance of the V18AUMLA1812NT, it is able to absorb the voltage spike and protect the sensitive electronics and components from overvoltage events.

Applications

The V18AUMLA1812NT is suitable for use in a wide range of automotive, telecommunications, computer, and other electronic applications. For example, it can be used in automotive infotainment systems to protect the sensitive audio components from transients or EMI interference. It can also be used in cell phones and computers to protect the delicate electronics from voltage surges. Additionally, the V18AUMLA1812NT can be used in LED lighting systems, and other applications where the combination of low capacitance and low clamping voltage are paramount.

Conclusion

The V18AUMLA1812NT is a varistor designed for EMI/RFI suppression and other applications where the combination of low capacitance and low clamping voltage are paramount. It can be used in automotive, telecommunications, computers, and other electronic systems. Additionally, it can be used in LED lighting systems and other applications where the combination of low capacitance and low clamping voltage are important for circuit protection.

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