All ProductsOsram Opto SemiconductorsSensorsSensorsOptical Sensors - Photointerrupters - Slot Type - Transistor Output OSRAM OPTO SEMICONDUCTORS SensorsSensorsOptical Sensors - Photointerrupters - Slot Type - Transistor Output SFH 9500 OPTICAL SENSOR TRANSMISSIVE 0.205" (5.2MM) PHOTOTRANSISTOR MODULE, SLOTTED MFR. Name: Osram Opto Semiconductors SFH 9540 MFR. Name: Osram Opto Semiconductors