The BOURNS part PEC12R-4220F-S0024 is a mechanical rotary incremental encoder that is designed for precise and accurate position sensing applications. With a flat design and weighing just 0.97oz.in, this encoder is compact and lightweight, making it suitable for a variety of compact electronic devices. It provides a straight quadrature digital square wave output, with a resolution of 24 pulses per revolution (PPR). The encoder features through-hole mounting and PC pin connection for easy installation. It is a reliable and cost-effective solution for applications requiring rotary position sensing.