L0103NERP

Thyristors - TRIACs

A TRIAC (Triode for AC) is a three-terminal bidirectional solid-state device for controlling current and voltage. The TRIAC is a two-layer semiconductor device, where the current flows from main terminal 1 (MT1), through main terminal 2 (MT2) and between both layers, depending on the direction of the main current. This structure provides bidirectional capability and also creates a structure for voltage and current sensing.TRIACs are commonly used for switching purposes in household applications, such as dimmers and light switches. Their most common application can be found in the lighting industry, where they are used to control the intensity of the light. TRIACs are also used in power supplies, in automotive applications, and in industrial equipment.

L0103NERP application field and working principle

The L0103NERP is a high-performance, low-noise, robust TRIAC designed specifically for controlling power in a wide range of industrial, commercial and residential applications. The L0103NERP is capable of controlling a variety of voltages and currents, with operating temperatures ranging from –40 °C to +125 °C.The L0103NERP operates by activating two thyristors in opposite directions when a triggering voltage is applied at its gate terminal. This causes alternating current to flow freely between main terminals 1 (MT1) and 2 (MT2), but only in one direction. This is referred to as "break-before-make" operation, which allows for better noise immunity, improved reliability, and safer operation.

The L0103NERP also has a low on-state resistance, resulting in a low dropout voltage and a high switching speed. This makes it ideal for applications that require rapid switching or higher current ratings. Additionally, its high surge current and peak current ratings provide the best in protection against overcurrent, making it especially suitable for industrial automation applications and other high current equipment.

The L0103NERP offers features such as zero voltage turn-on, zero-cross detection, thermal protection, overcurrent protection, overvoltage protection and soft start to protect the load and extend its service life.

Overall, the L0103NERP is an effective and easy to use TRIAC that is ideal for a variety of applications in the residential, commercial and industrial markets.