LC18 Circuit Protection

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

TVS (transient voltage suppressor) diodes are one of the most common types of over-voltage protection devices used in a variety of electronic equipment, from critical networking applications to consumer electronics. They are designed to block high-voltage spikes from reaching sensitive components in a circuit.

A popular variant of the TVS diode is the LC18, sometimes called an LC17 diode, which provides protection for equipment against transients on pairs of signal wires. It can deliver as much as 8A of overvoltage protection for these lines. Specifically, the LC18 absorption range is rated from 15V to 50V, ideal for many applications.

LC18 is designed to both absorb and protect against electrostatic discharge (ESD). It includes two series of diodes in opposite directions, which are designed to protect against ESD by clamping the voltage at a certain level. This clamping protects the electronic equipment that is connected to its terminals.

In addition, the LC18 can provide a specified clamping voltage regardless of the amount of current that passes through the device. This makes it ideal for protecting devices against power surges, where the amount of current is uncertain.

The working principle of LC18 can be explained with the aid of a basic circuit diagram. In the diagram, the voltage is represented by an alternating sine wave. When the voltage increases to a certain level, the LC18 begins to conduct current. This triggers a voltage clamp circuit which limits the forward voltage of the device.

The voltage clamp circuit acts as a current limiter, helping to protect the equipment from power surges or over voltage. As the voltage continues to increase, the LC18 absorbs the energy, shaping the voltage waveform and limiting the surge. At the same time, it also blocks out any reverse voltage, further protecting the equipment from overvoltage damage.

The LC18 is most commonly used in critical networking applications, where the power supply must be reliable and surge protective. It is also widely used in consumer electronics, such as TV sets, laptops, phones and other handheld devices. The LC18 can be used in a variety of other applications, including automotive, industrial and medical electronics.

In summary, the LC18 is a versatile and reliable transient voltage suppressor diode. It offers protection from transients on pairs of signal wires, as well as protection from ESD and power surge damage. It is used in a variety of applications, from critical networks to consumer electronics, due to its reliable protection and clamping capabilities.

The specific data is subject to PDF, and the above content is for reference