The RDC501029A is a Through Hole Position Sensor ROHS manufactured by ALPS. It is a non-contact, high performance Hall Effect position sensor designed to provide reliable and accurate sensing performance in an easy-to-use, through-hole package. The sensor is available in 6mm, 8mm, 12mm, and 15mm sizes, which are suited for different types of applications. It comes with a built-in metal detector circuit for immunity to dirt, dust or water contaminants on the mounting surface. The sensor also has a wide supply voltage range (3V-40V) and a wide temperature range (-40°C to +125°C). The RDC501029A is RoHS compliant and has UL, CSA, and CE certifications for safety compliance and reliable operation.