An SM feeder typically refers to a type of component used in surface mount technology (SMT) machines. SMT machines are used in electronics manufacturing to place electronic components onto printed circuit boards (PCBs).

SM feeders are used to hold and supply the electronic components to the SMT machine for placement onto the PCB. These feeders are designed to be compatible with specific SMT machines and can vary in size and configuration depending on the machine model and the size of the components being used.

The SM feeder typically consists of a plastic or metal housing with compartments or slots to hold the components securely. It is equipped with mechanisms to advance the components into position for pick and placement by the SMT machine.

Different types of SM feeders are available, such as tape feeders, stick feeders, and tray feeders, depending on the packaging of the components being used. Tape feeders, for example, hold components on a reel or tape, while stick feeders hold components in a tube-like structure, and tray feeders hold components in trays.

SM feeders are an essential part of the SMT process, allowing for efficient and accurate placement of electronic components onto PCBs during manufacturing.