368763 With 1 touch key; Touch detection IC is designed for using variable-area key to replace the traditional button Low power consumption and wide voltage range Touch key detects IC， provides a touch button. Touch detection IC is designed for using variable-area key to replace the traditional button. Low power consumption and wide operating voltage are the DC and AC features of contact key. Operating voltage 2.0V ~ 5.5V After power-up， it might need a stable time of 0.5 sec， and do not touch the key during this period At this time all functions are disabled Always self-calibration When the key is not to be touched， re-calibration period is about 4.0sec Application: A wide range of consumer products Waterproof electrical appliance Button key replacement Board with blue LED Board size: 15.5 x 23.5 mm Pin 1 for power supply + VCC Pin 2 for the output OUT Pin 3 for the power supply - GND 1 x Capacitive Touch Sensor