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Transmissive, Slotted Optical Switches

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Sensing Method = Transmissive, Slotted

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (GBP) 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: £3.99 296In Stock 600Expected 29/12/2026	Mfr. Part No. OPB840W51Z Mouser Part No 828-OPB840W51Z	Optek / TT Electronics	Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch	Datasheet	296In Stock 600Expected 29/12/2026	£3.99 £3.77	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: £3.66 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	£3.66	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: £3.48 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	£3.48 £3.33	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: £1.68 1,103In Stock 3,000Expected 23/12/2026	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 23/12/2026	£1.68 £1.62 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: £2.30 912In Stock 3,000Expected 07/12/2026	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 07/12/2026	£2.30 £2.14	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: £3.78 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	£3.78 £3.49	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: £3.68 423In Stock 1,200Expected 31/12/2026	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 31/12/2026	£3.68 £3.47	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: £3.55 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	£3.55 £3.20	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: £3.50 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	£3.50 £3.37	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: £3.55 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	£3.55 £3.37	Min.: 1 Mult.: 1	Optical Switches, Transmissive, Phototransistor Output	Transmissive, Slotted	3.18 mm	3.18 mm
Optical Switches, Transmissive, Photo IC Output Optical Switch Photologic OPB120B Optek / TT Electronics 1: £4.18 273In Stock	Mfr. Part No. OPB120B Mouser Part No 828-OPB120B	Optek / TT Electronics	Optical Switches, Transmissive, Photo IC Output Optical Switch Photologic	Datasheet	273In Stock	£4.18 £4.02	Min.: 1 Mult.: 1	Optical Switches, Transmissive, Photo IC Output	Transmissive, Slotted	2.03 mm
Optical Switches, Transmissive, Photo IC Output Photologic Slotted Optical Switch OPB491T11Z Optek / TT Electronics 1: £3.62 1,003In Stock	Mfr. Part No. OPB491T11Z Mouser Part No 828-OPB491T11Z	Optek / TT Electronics	Optical Switches, Transmissive, Photo IC Output Photologic Slotted Optical Switch	Datasheet	1,003In Stock	£3.62	Min.: 1 Mult.: 1	Optical Switches, Transmissive, Photo IC Output	Transmissive, Slotted	3.18 mm
Optical Switches, Transmissive, Photo IC Output Photologic Slotted Opt Switch OPB615 Optek / TT Electronics 1: £1.74 960In Stock	Mfr. Part No. OPB615 Mouser Part No 828-OPB615	Optek / TT Electronics	Optical Switches, Transmissive, Photo IC Output Photologic Slotted Opt Switch	Datasheet	960In Stock	£1.74 £1.65 £1.56	Min.: 1 Mult.: 1	Optical Switches, Transmissive, Photo IC Output	Transmissive, Slotted	3.81 mm
Optical Switches, Transmissive, Photo IC Output Photologic Slotted Opt Switch OPB618 Optek / TT Electronics 1: £1.68 3,220In Stock	Mfr. Part No. OPB618 Mouser Part No 828-OPB618	Optek / TT Electronics	Optical Switches, Transmissive, Photo IC Output Photologic Slotted Opt Switch	Datasheet	3,220In Stock	£1.68 £1.61	Min.: 1 Mult.: 1	Optical Switches, Transmissive, Photo IC Output	Transmissive, Slotted	3.81 mm
Optical Switches, Transmissive, Photo IC Output Output Photologic Input Diode OPB625 Optek / TT Electronics 1: £1.81 3,063In Stock	Mfr. Part No. OPB625 Mouser Part No 828-OPB625	Optek / TT Electronics	Optical Switches, Transmissive, Photo IC Output Output Photologic Input Diode	Datasheet	3,063In Stock	£1.81 £1.68	Min.: 1 Mult.: 1	Optical Switches, Transmissive, Photo IC Output	Transmissive, Slotted	4.83 mm
Optical Switches, Transmissive, Photo IC Output Slotted Opt Switch OPB900W55Z Optek / TT Electronics 1: £5.05 1,998In Stock	Mfr. Part No. OPB900W55Z Mouser Part No 828-OPB900W55Z	Optek / TT Electronics	Optical Switches, Transmissive, Photo IC Output Slotted Opt Switch	Datasheet	1,998In Stock	£5.05 £4.92	Min.: 1 Mult.: 1	Optical Switches, Transmissive, Photo IC Output	Transmissive, Slotted	9.5 mm
Optical Switches, Transmissive, Photo IC Output .050 APERTURE OPAQUE OPB910W55Z Optek / TT Electronics 1: £5.19 297In Stock	Mfr. Part No. OPB910W55Z Mouser Part No 828-OPB910W55Z	Optek / TT Electronics	Optical Switches, Transmissive, Photo IC Output .050 APERTURE OPAQUE	Datasheet	297In Stock	£5.19 £4.69	Min.: 1 Mult.: 1	Optical Switches, Transmissive, Photo IC Output	Transmissive, Slotted	9.5 mm
Optical Switches, Transmissive, Photo IC Output Slotted Opt Switch OPB916BOCZ Optek / TT Electronics 1: £4.17 504In Stock	Mfr. Part No. OPB916BOCZ Mouser Part No 828-OPB916BOCZ	Optek / TT Electronics	Optical Switches, Transmissive, Photo IC Output Slotted Opt Switch	Datasheet	504In Stock	£4.17 £3.97	Min.: 1 Mult.: 1	Optical Switches, Transmissive, Photo IC Output	Transmissive, Slotted	5.08 mm
Optical Switches, Transmissive, Photo IC Output .13in SLOT INFRARED OPB930W55Z Optek / TT Electronics 1: £4.61 771In Stock	Mfr. Part No. OPB930W55Z Mouser Part No 828-OPB930W55Z	Optek / TT Electronics	Optical Switches, Transmissive, Photo IC Output .13in SLOT INFRARED	Datasheet	771In Stock	£4.61 £4.60 £4.58 £4.50 View £4.43 £4.36	Min.: 1 Mult.: 1	Optical Switches, Transmissive, Photo IC Output	Transmissive, Slotted	3.18 mm
Optical Switches, Transmissive, Photo IC Output OPEN COLLECTOR 880nm OPB931W51Z Optek / TT Electronics 1: £4.92 554In Stock	Mfr. Part No. OPB931W51Z Mouser Part No 828-OPB931W51Z	Optek / TT Electronics	Optical Switches, Transmissive, Photo IC Output OPEN COLLECTOR 880nm	Datasheet	554In Stock	£4.92 £4.91 £4.62 £4.58	Min.: 1 Mult.: 1	Optical Switches, Transmissive, Photo IC Output	Transmissive, Slotted	3.18 mm
Optical Switches, Transmissive, Photo IC Output Slotted Opt Switch OPB933W51Z Optek / TT Electronics 1: £4.78 270In Stock	Mfr. Part No. OPB933W51Z Mouser Part No 828-OPB933W51Z	Optek / TT Electronics	Optical Switches, Transmissive, Photo IC Output Slotted Opt Switch	Datasheet	270In Stock	£4.78 £4.53	Min.: 1 Mult.: 1	Optical Switches, Transmissive, Photo IC Output	Transmissive, Slotted	3.18 mm
Optical Switches, Transmissive, Photo IC Output Slotted Opt Switch OPB940W51Z Optek / TT Electronics 1: £4.58 766In Stock	Mfr. Part No. OPB940W51Z Mouser Part No 828-OPB940W51Z	Optek / TT Electronics	Optical Switches, Transmissive, Photo IC Output Slotted Opt Switch	Datasheet	766In Stock	£4.58 £4.50	Min.: 1 Mult.: 1	Optical Switches, Transmissive, Photo IC Output	Transmissive, Slotted	3.18 mm
Optical Switches, Transmissive, Photo IC Output Slotted Opt Switch Photologic OPB970N11 Optek / TT Electronics 1: £3.08 756In Stock	Mfr. Part No. OPB970N11 Mouser Part No 828-OPB970N11	Optek / TT Electronics	Optical Switches, Transmissive, Photo IC Output Slotted Opt Switch Photologic	Datasheet	756In Stock	£3.08 £2.92	Min.: 1 Mult.: 1	Optical Switches, Transmissive, Photo IC Output	Transmissive, Slotted	3.18 mm
Optical Switches, Transmissive, Photo IC Output Slotted Opt Switch Photologic OPB970N51 Optek / TT Electronics 1: £2.98 904In Stock	Mfr. Part No. OPB970N51 Mouser Part No 828-OPB970N51	Optek / TT Electronics	Optical Switches, Transmissive, Photo IC Output Slotted Opt Switch Photologic	Datasheet	904In Stock	£2.98 £2.66	Min.: 1 Mult.: 1	Optical Switches, Transmissive, Photo IC Output	Transmissive, Slotted	3.18 mm
Optical Switches, Transmissive, Photo IC Output BASE MOUNT OPAQUE OPB971N51 Optek / TT Electronics 1: £2.71 814In Stock	Mfr. Part No. OPB971N51 Mouser Part No 828-OPB971N51	Optek / TT Electronics	Optical Switches, Transmissive, Photo IC Output BASE MOUNT OPAQUE	Datasheet	814In Stock	£2.71 £2.65	Min.: 1 Mult.: 1	Optical Switches, Transmissive, Photo IC Output	Transmissive, Slotted	3.18 mm