Slotted Optical Switch - SODIAL(R) 10 Pcs 1/6" Slot PCB Photo Interrupter Slotted Optical Switch HY301-21 Product Name : Slotted Optical Switch;Model : HY301-21; Output Type : Photo Transistor Peak Emission Wavelength : 940nm; IR Diode Forward Current : 50mA; IR Diode Reverse Voltage : 5V Transistor Power Dissipation : 75mW; Transistor Collector Current : 20mA Photo Transistor Collector-emitter Voltage : 30V; Photo Transistor Emitter-collector Voltage : 5V Diode Power Dissipation : 100mW; Operating Temperature Range : -55~100 Celsius Degree