億光EVERLIGHT的 Opto Interrupter光遮斷器，俗稱“光電感應光耦”、“槽型光耦”、“反射式光耦”等等，EVERLIGHT光電開關有DIP插件型和SMT貼片型
ITR9816是一款較通用的槽型光偶，可用于各類非接觸性開關設計中，依靠其紅外發射管的信號，接收管端接收到的信號來做開關設計或物品感應，廣泛用于碎紙機、打印機、傳真機、復印機、游戲機、投幣器、投幣電話、洗碗機、飲水機、咖啡機等產品中，其應用原理圖示如下：
槽型光耦其他規格型號舉例說明: ITR8010,ITR8102,ITR8102/F5,ITR8102/F5-1,ITR8102/R,ITR8103,ITR8104,ITR8105,ITR8117,ITR8402,ITR8402-A,ITR8402-F,ITR8402-F-A,ITR8403,ITR8403/R5,ITR8405,ITR8406,ITR8406/S,ITR8406/T10,ITR9606,ITR9606-F,ITR9606-A/F3,ITR9606/F5,ITR9606-F17,ITR9606/L5,ITR9608,ITR9608/F,ITR9702,ITR9702/F23,ITR9702/T,ITR9702/T1/F2,ITR9702-F,ITR9707,ITR9803,ITR9804,ITR9809,ITR9809-F/T,ITR9813,ITR9816,ITR9818,ITR9901,ITR9907,ITR20005,ITR20005-F,ITR20006,ITR20401,ITR20402,ITR20403,ITR20403-2,ITR20501,ITR20601,ITR21107