The infrared receiver head is composed of a diode plus an amplifier assembled in a lead frame, cast into a black epoxy resin that encapsulates it as an infrared filter. Infrared receiver has carrier frequency generally between 30khz-60khz, but most of them use 38khz, equipped with infrared transmitter modulation mode to transmit data encoding and decoding, infrared receiver has, anti-interference, long receiving range, high sensitivity, low working voltage and low power consumption.
Infrared receiver head is used in: TV, air conditioner, DVD, instrument, electric meter, industrial automation equipment, toys, lighting and other remote control fields, widely used.