V18AUMLA2220T Circuit Protection

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TVS (transient voltage suppressors), varistors and MOVs are widely used in electronic devices and systems for protection against transient overvoltages. The V18AUMLA2220T is a general-purpose, bidirectional transient voltage suppressor diode for surface mounted applications. It is designed to protect against voltage transients generated by load center faults, lightning or static discharge. In this article, we will discuss the application field and working principle of the V18AUMLA2220T.

V18AUMLA2220T is mainly used in computer and communication applications where surge protection is critical, such as peripheral boards, computers, notebooks, DSL modems, and fax machines. The device is also ideal for protecting automotive electronic control units from lightning. The device can absorb transient overvoltages including ESD, EFT, power line surges and lightening-induced surges.

The device features a low clamping voltage of 12V at 8A, providing excellent overvoltage protection and outstanding surge protection capability. The low clamping voltage helps preserve the energy efficiency of the electronics system. In addition, the device features low capacitance, allowing high speed signals to pass without any distortion or noise interference. Moreover, the device is RoHS compliant and has a wide operating temperature range of -40°C to +125°C.

The working principle of V18AUMLA2220T is simple. It is designed to absorb transient overvoltages and dissipate them as heat. When the voltage across the device reaches a certain threshold, the device conducts and clamps the voltage, providing overvoltage protection for the system. The device is designed with a very low on-state voltage drop, allowing it to operate in a wide temperature range with minimal power loss. The device also features a fast response time to ensure that the surge voltage is clamped in a timely manner.

In conclusion, the V18AUMLA2220T is a bidirectional transient voltage suppressor diode designed for surface mounted applications. It is ideal for protecting computer and communication equipment, automotive electronic control units, and peripheral boards from transient overvoltages. The device features low clamping voltage, low capacitance, and fast response time, providing excellent overvoltage protection and surge protection capability. Thus, it can provide reliable protection from damaging overvoltages.

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