1.5KE18AHA0G

TVS – Diodes

A TVS (Transient Voltage Suppression) diode is an electrical component designed to protect electrical power systems from high-voltage transients and from interference. These diodes are used in many different applications, such as in automobiles, computers, and consumer electronics.

The 1.5KE18AHA0G is a TVS diode designed to protect against transient voltage surges of up to 18A, providing an efficient protection to a variety of systems. When constructed properly, it can withstand these surges and remain stable during normal operating conditions.

Application Field

The 1.5KE18AHA0G is frequently used in automotive electronic systems and consumer electronics. It is highly effective in controlling voltage transients occurring on data lines with high flow of current, such as in switching power supplies. It is also used to protect the sensitive components of other electronics from voltage spikes, or to provide some power-handling performance improvements for these components.

The 1.5KE18AHA0G is typically used to provide protection against electrostatic discharge (ESD) present in industrial, automotive, and electronic systems. It is also widely used to protect sensitive chips, such as microprocessors and memory chips, from overvoltage transients.

Working Principle

The 1.5KE18AHA0G acts as a “bridge” between the power line and the system in case of a voltage surge. It is designed to absorb or reduce the transient voltage, while isolating it from the system to prevent it from damaging sensitive circuits.

It is important to note that the 1.5KE18AHA0G diode does not act as a shunt (or switch) that shorts out the voltage. Instead, it works as a bridge between the power line and the system. This enables it to effectively reduce the amount of energy that passes through the system without causing any damage.

When a transient voltage surge is detected, the 1.5KE18AHA0G is triggered and electrical energy is passed through the diode and reduced. This process works by quickly reducing the amplitude of the voltage and preventing it from flowing into the circuit. In this way, it protects the sensitive components and circuits from damages caused by transient voltage spikes.

The 1.5KE18AHA0G has an operating temperature range from -40oC to 85oC, and features an air-gap discharge distance of 12mm up to 6kV, with a surge withstand capability of up to 20A.

In summary, the 1.5KE18AHA0G is an effective TVS (transient voltage suppression) diode designed for use in automotive and consumer electronics. It effectively reduces transients without causing damage to sensitive circuits, and is suitable for use in a wide range of applications.