20pcs/lot KS1838 integrated infrared receiver remote control receiver LONEON DIP DIP-3 frequency 38KHZ
https://www.vogueparade.com/shopping/EN/150412/1/1005003420824771/20pcslot-ks1838-integrated-infrared-receiver-remote-control-receiver-loneon-dip-dip-3-frequency-38khz//