This part is a kind of semiconductor called TLP-801A.

Function of this product has INFRARED LED + PHOTOTRANSISTOR.

Manufacturers : Toshiba Semiconductor

Image and pinout :

Some of the text within the PDF file :

TLP801A(F) TOSHIBA Photo−Interrupter Infrared LED+Phototransistor TLP801A(F) Lead Free Product Optical Switches Position And Rotation Detection Timing Detection In Copiers, Printers, Fax Machines, Etc. The TLP801A(F) photo−interrupter can be used for high-speed position detection. • • • • • • Gap: 3mm Resolution: Slit width = 1mm Fast response speed: tr, tf = 6µs(typ.) High current transfer ratio: IC / IF = 10%(min) Designed for direct mounting on printed circuit boards Package material: Polycarbonate TOSHIBA Weight: 0.78g(typ.) 11−13D2 Maximum Ratings (Ta = 25°C) Characteristic Forward current Forward current derating (Ta > 25°C) Reverse voltage Collector-emitter voltage Detector Emitter-collector voltage Collector power dissipation Collect [ ... ]

TLP-801A PDF Datasheet Download