The SOM-51T-250 is an electrical connector manufactured by JST. It is a male, 6.3x0.8mm terminal, meaning it has a hole 6.3mm in diameter, and is 0.8mm thick. It is used to connect circuits, and is widely used in many electronic applications. This terminal is highly reliable and robust, and is designed to withstand high temperatures, vibrations, and dust. It is also resistant to oxidation and other forms of corrosion. This connector is made of high quality materials with a high level of insulation, and it is easy to install and use.