This adjustable or Variable resistor are PCB mountable and has 3 terminals. The voltage between the terminal varies as the preset is rotated.
The Variable resistors are used for variation voltage as per the need in a circuit. The outer two pins are connected to Vcc and 0V, and center pin outputs a variable voltage between 0v and Vcc as the rotary cermet is rotated.
Kit consists of 25 pieces different values of Presets.
Wide variety of 5 values ranges from 1K ohm to 1M ohm.