The SMAJ90A with 400W 1µA 2.74A 146V 100V 90V 111V Unidirectional SMA TVS ROHS manufactured by LGE is a type of transient voltage suppressor (TVS) diode. Specifically, it is an unidirectional Surge Suppressor Diode designed for use in various machine components and applications. The diode has 400W of peak pulse power, 1µA of forward leakage current, 2.74A of reversed stand-off voltage, and a maximum stand-off voltage of up to 146V. It has a surge voltage of 100V, 90V, and 111V, and it is RoHS compliant, which means it meets all the necessary safety and environmental standards. The SMAJ90A is manufactured by LGE, a global leader in the manufacture of electronic components.