uThe 1SMAF4740A Zener Diode SMAF RoHS manufactured by Shikuesu is a semiconductor device designed to regulate voltage. It works by limiting the voltage along a single direction, allowing the current to flow in the opposite direction when the voltage across it reaches a certain value, or the Zener voltage. It can be used as a voltage regulator, overvoltage protection, and voltage reference, and is suitable for a wide range of applications. It features a maximum power rating of 400mW, a maximum voltage of 47V, a temperature range of -55°C to +150°C, and a current of 7mA. It is RoHS compliant and has an SMAF package.