The ST04-24F1-5103 with Zener Diodes Power Zeners Trankillers is a 4-pin integrated circuit manufactured by Shindengen. It comes with an insulated base and is classified as a trankiller type of Zener diode designed specifically for high power dissipation. It is designed for use in DC/DC converters, voltage regulation, and overvoltage protection. The ST04-24F1-5103 uses a maximum voltage of 24V, a maximum power of 1.5W, and a maximum current of 110mA. It is suitable for surface mount applications, with a package size of 12.7mm W x 6.2mm D x 6.6mm H. The voltage regulation and zener characteristics ensure high safety and reliability when used in power supply regulation devices.