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20 mA Optical Switches

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (EUR) Filter the results in the table by unit price based on your quantity.	Qty.	Product Type	Sensing Method	Slot Width	Sensing Distance
Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch OPB840W51Z Optek / TT Electronics 1: 4,57 € 296In Stock 600Expected 12/29/2026	Mfr. Part No. OPB840W51Z Mouser Part No 828-OPB840W51Z	Optek / TT Electronics	Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch	Datasheet	296In Stock 600Expected 12/29/2026	4,57 € 4,32 €	Min.: 1 Mult.: 1	Optical Switches, Transmissive, Phototransistor Output	Transmissive, Slotted	3.18 mm	3.18 mm
Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch OPB840W55Z Optek / TT Electronics 1: 4,19 € 703In Stock	Mfr. Part No. OPB840W55Z Mouser Part No 828-OPB840W55Z	Optek / TT Electronics	Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch	Datasheet	703In Stock	4,19 €	Min.: 1 Mult.: 1	Optical Switches, Transmissive, Phototransistor Output	Transmissive, Slotted	3.18 mm	3.18 mm
Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch OPB842W51Z Optek / TT Electronics 1: 3,99 € 1.663In Stock	Mfr. Part No. OPB842W51Z Mouser Part No 828-OPB842W51Z	Optek / TT Electronics	Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch	Datasheet	1.663In Stock	3,99 € 3,82 €	Min.: 1 Mult.: 1	Optical Switches, Transmissive, Phototransistor Output	Transmissive, Slotted	3.18 mm	3.18 mm
Optical Switches, Transmissive, Phototransistor Output Output Phototranstr Input Diode OPB855 Optek / TT Electronics 1: 1,92 € 1.103In Stock 3.000Expected 12/23/2026	Mfr. Part No. OPB855 Mouser Part No 828-OPB855	Optek / TT Electronics	Optical Switches, Transmissive, Phototransistor Output Output Phototranstr Input Diode	Datasheet	1.103In Stock 3.000Expected 12/23/2026	1,92 € 1,85 € Quote Quote	Min.: 1 Mult.: 1	Optical Switches, Transmissive, Phototransistor Output	Transmissive, Slotted	5.21 mm	5.21 mm
Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch OPB866T55 Optek / TT Electronics 1: 2,63 € 912In Stock 3.000Expected 12/7/2026	Mfr. Part No. OPB866T55 Mouser Part No 828-OPB866T55	Optek / TT Electronics	Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch	Datasheet	912In Stock 3.000Expected 12/7/2026	2,63 € 2,45 €	Min.: 1 Mult.: 1	Optical Switches, Transmissive, Phototransistor Output	Transmissive, Slotted	3.18 mm	3.18 mm
Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch OPB880L51Z Optek / TT Electronics 1: 4,33 € 416In Stock	Mfr. Part No. OPB880L51Z Mouser Part No 828-OPB880L51Z	Optek / TT Electronics	Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch Learn More about Optek / TT Electronics optek tt opb88 89z switches	Datasheet	416In Stock	4,33 € 4,00 €	Min.: 1 Mult.: 1	Optical Switches, Transmissive, Phototransistor Output	Transmissive, Slotted	3.18 mm	3.18 mm
Optical Switches, Transmissive, Phototransistor Output SLT 880 PHOTO TRAN OPB880T51Z Optek / TT Electronics 1: 4,33 € 29In Stock 1.600On Order	Mfr. Part No. OPB880T51Z Mouser Part No 828-OPB880T51Z	Optek / TT Electronics	Optical Switches, Transmissive, Phototransistor Output SLT 880 PHOTO TRAN Learn More about Optek / TT Electronics optek tt opb88 89z switches	Datasheet	29In Stock 1.600On Order	4,33 € 4,32 € 4,26 € 4,15 € 4,05 €	Min.: 1 Mult.: 1	Optical Switches, Transmissive, Phototransistor Output	Transmissive, Slotted	3.18 mm	3.18 mm
Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch OPB880T55Z Optek / TT Electronics 1: 4,21 € 423In Stock 1.200Expected 12/31/2026	Mfr. Part No. OPB880T55Z Mouser Part No 828-OPB880T55Z	Optek / TT Electronics	Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch Learn More about Optek / TT Electronics optek tt opb88 89z switches	Datasheet	423In Stock 1.200Expected 12/31/2026	4,21 € 3,97 €	Min.: 1 Mult.: 1	Optical Switches, Transmissive, Phototransistor Output	Transmissive, Slotted	3.18 mm	3.18 mm
Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch OPB890P51Z Optek / TT Electronics 1: 4,07 € 666In Stock	Mfr. Part No. OPB890P51Z Mouser Part No 828-OPB890P51Z	Optek / TT Electronics	Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch Learn More about Optek / TT Electronics optek tt opb88 89z switches	Datasheet	666In Stock	4,07 € 3,67 €	Min.: 1 Mult.: 1	Optical Switches, Transmissive, Phototransistor Output	Transmissive, Slotted	3.18 mm	3.18 mm
Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch OPB890T51Z Optek / TT Electronics 1: 4,01 € 1.277In Stock	Mfr. Part No. OPB890T51Z Mouser Part No 828-OPB890T51Z	Optek / TT Electronics	Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch Learn More about Optek / TT Electronics optek tt opb88 89z switches	Datasheet	1.277In Stock	4,01 € 3,86 €	Min.: 1 Mult.: 1	Optical Switches, Transmissive, Phototransistor Output	Transmissive, Slotted	3.18 mm	3.18 mm
Optical Switches, Transmissive, Phototransistor Output Output Phototranstr Slotted OPB891T51Z Optek / TT Electronics 1: 4,07 € 502In Stock	Mfr. Part No. OPB891T51Z Mouser Part No 828-OPB891T51Z	Optek / TT Electronics	Optical Switches, Transmissive, Phototransistor Output Output Phototranstr Slotted Learn More about Optek / TT Electronics optek tt opb88 89z switches	Datasheet	502In Stock	4,07 € 3,86 €	Min.: 1 Mult.: 1	Optical Switches, Transmissive, Phototransistor Output	Transmissive, Slotted	3.18 mm	3.18 mm
Optical Switches, Specialised Infrared Emitter 950nm MTRS9520D Marktech Optoelectronics 1: 5,24 € 12In Stock	Mfr. Part No. MTRS9520D Mouser Part No 193-MTRS9520D	Marktech Optoelectronics	Optical Switches, Specialised Infrared Emitter 950nm Learn More about Marktech Optoelectronics marktech near ir emitters	Datasheet	12In Stock	5,24 € 3,92 € 3,15 € 2,81 € 2,61 €	Min.: 1 Mult.: 1	Optical Switches, Specialized			0.5 mm to 1.5 mm
Optical Switches, Specialised 1625nm SMD Reflective Switch Flat Top MTRS5116C Marktech Optoelectronics 1: 46,96 € 1In Stock	Mfr. Part No. MTRS5116C Mouser Part No 193-MTRS5116C	Marktech Optoelectronics	Optical Switches, Specialised 1625nm SMD Reflective Switch Flat Top	Datasheet	1In Stock	46,96 € 38,62 € 34,21 €	Min.: 1 Mult.: 1	Optical Switches, Specialized	Reflective		0.5 mm to 1.5 mm
Optical Switches, Specialised Visible Emitter 660nm MTRS6660D Marktech Optoelectronics 1: 4,93 € 9In Stock	Mfr. Part No. MTRS6660D Mouser Part No 193-MTRS6660D	Marktech Optoelectronics	Optical Switches, Specialised Visible Emitter 660nm	Datasheet	9In Stock	4,93 € 3,68 € 2,95 € 2,62 € 2,43 €	Min.: 1 Mult.: 1	Optical Switches, Specialized	Reflective		0.5 mm to 1.5 mm
Optical Switches, Specialised Slotted Opt Switch OPB355T Optek / TT Electronics 1: 3,55 € 95In Stock	Mfr. Part No. OPB355T Mouser Part No 828-OPB355T	Optek / TT Electronics	Optical Switches, Specialised Slotted Opt Switch	Datasheet	95In Stock	3,55 € 3,39 €	Min.: 1 Mult.: 1	Optical Switches, Specialized	Transmissive		3.18 mm
Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch OPB360N51 Optek / TT Electronics 1: 2,14 € 65In Stock	Mfr. Part No. OPB360N51 Mouser Part No 828-OPB360N51	Optek / TT Electronics	Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch	Datasheet	65In Stock	2,14 € 2,03 €	Min.: 1 Mult.: 1	Optical Switches, Transmissive, Phototransistor Output	Transmissive, Slotted	3.18 mm	3.18 mm
Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch OPB360T55 Optek / TT Electronics 1: 2,14 € 396In Stock	Mfr. Part No. OPB360T55 Mouser Part No 828-OPB360T55	Optek / TT Electronics	Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch	Datasheet	396In Stock	2,14 € 2,05 €	Min.: 1 Mult.: 1	Optical Switches, Transmissive, Phototransistor Output	Transmissive, Slotted	3.18 mm	3.18 mm
Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch OPB365T55 Optek / TT Electronics 1: 2,69 € 233In Stock	Mfr. Part No. OPB365T55 Mouser Part No 828-OPB365T55	Optek / TT Electronics	Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch	Datasheet	233In Stock	2,69 € 2,63 €	Min.: 1 Mult.: 1	Optical Switches, Transmissive, Phototransistor Output	Transmissive, Slotted	3.18 mm	3.18 mm
Optical Switches, Transmissive, Phototransistor Output PHOTOTRANSISTOR OUT OPB370N55 Optek / TT Electronics 1: 2,40 € 20In Stock 500Expected 11/24/2026	Mfr. Part No. OPB370N55 Mouser Part No 828-OPB370N55	Optek / TT Electronics	Optical Switches, Transmissive, Phototransistor Output PHOTOTRANSISTOR OUT	Datasheet	20In Stock 500Expected 11/24/2026	2,40 € 2,29 €	Min.: 1 Mult.: 1	Optical Switches, Transmissive, Phototransistor Output	Transmissive, Slotted	3.18 mm	3.18 mm
Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch OPB380P51Z Optek / TT Electronics 1: 4,39 € 93In Stock	Mfr. Part No. OPB380P51Z Mouser Part No 828-OPB380P51Z	Optek / TT Electronics	Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch Learn More about Optek / TT Electronics optek tt opb380 90z switches	Datasheet	93In Stock	4,39 € 4,16 €	Min.: 1 Mult.: 1	Optical Switches, Transmissive, Phototransistor Output	Transmissive, Slotted	3.18 mm	3.18 mm
Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch OPB380P55Z Optek / TT Electronics 1: 4,27 € 140In Stock	Mfr. Part No. OPB380P55Z Mouser Part No 828-OPB380P55Z	Optek / TT Electronics	Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch Learn More about Optek / TT Electronics optek tt opb380 90z switches	Datasheet	140In Stock	4,27 € 4,16 €	Min.: 1 Mult.: 1	Optical Switches, Transmissive, Phototransistor Output	Transmissive, Slotted	3.18 mm	3.18 mm
Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch OPB380T55Z Optek / TT Electronics 1: 4,03 € 285In Stock	Mfr. Part No. OPB380T55Z Mouser Part No 828-OPB380T55Z	Optek / TT Electronics	Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch Learn More about Optek / TT Electronics optek tt opb380 90z switches	Datasheet	285In Stock	4,03 € 3,69 € 3,59 €	Min.: 1 Mult.: 1	Optical Switches, Transmissive, Phototransistor Output	Transmissive, Slotted	3.18 mm	3.18 mm
Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch OPB390L55Z Optek / TT Electronics 1: 4,39 € 98In Stock	Mfr. Part No. OPB390L55Z Mouser Part No 828-OPB390L55Z	Optek / TT Electronics	Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch Learn More about Optek / TT Electronics optek tt opb380 90z switches	Datasheet	98In Stock	4,39 € 4,16 €	Min.: 1 Mult.: 1	Optical Switches, Transmissive, Phototransistor Output	Transmissive, Slotted	3.18 mm	3.18 mm
Optical Switches, Transmissive, Phototransistor Output Right Angle Switch 880nm, X,Y,Z Axis OPB420AZ Optek / TT Electronics 1: 4,76 € 178In Stock	Mfr. Part No. OPB420AZ Mouser Part No 828-OPB420AZ	Optek / TT Electronics	Optical Switches, Transmissive, Phototransistor Output Right Angle Switch 880nm, X,Y,Z Axis Learn More about Optek / TT Electronics optek tt opb420 optical switches	Datasheet	178In Stock	4,76 € 4,64 €	Min.: 1 Mult.: 1	Optical Switches, Transmissive, Phototransistor Output	Transmissive, Slotted
Optical Switches, Transmissive, Phototransistor Output Right Angle Switch 880nm, X,Y,Z Axis OPB420BZ Optek / TT Electronics 1: 4,85 € 97In Stock	Mfr. Part No. OPB420BZ Mouser Part No 828-OPB420BZ	Optek / TT Electronics	Optical Switches, Transmissive, Phototransistor Output Right Angle Switch 880nm, X,Y,Z Axis Learn More about Optek / TT Electronics optek tt opb420 optical switches	Datasheet	97In Stock	4,85 € 4,62 €	Min.: 1 Mult.: 1	Optical Switches, Transmissive, Phototransistor Output	Transmissive, Slotted