The PHA11200 is a reed switch manufactured by Celduc which has a range of 15÷17AT and a power switch of 10W. It measures 23.12 x 4.2 x 4.2mm, making it a fairly small and compact device. This switch has a variety of uses, including in temperature sensors, current switching, and security systems. It has a hermetically sealed metal enclosure with a mu-metal shield, making it resistant to high temperatures, shocks, and external magnetic fields. The contacts of the reed switch are gold plated and provide excellent contact reliability, making it suitable for applications with high-frequency operation. This reed switch can operate at temperatures from -40°C up to +75°C, with a maximum switching current of 3A and a voltage rating of 250VAC/DC.