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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 Wide Gap Opt Switch OPB801W55Z Optek / TT Electronics 1: £3.88 3In Stock	Mfr. Part No. OPB801W55Z Mouser Part No 828-OPB801W55Z	Optek / TT Electronics	Optical Switches, Transmissive, Phototransistor Output Wide Gap Opt Switch Learn More about Optek / TT Electronics optek tt opb800 w switches	Datasheet	3In Stock	£3.88 £3.66	Min.: 1 Mult.: 1	Optical Switches, Transmissive, Phototransistor Output	Transmissive, Slotted	9.5 mm	9.5 mm
Optical Switches, Transmissive, Phototransistor Output Wide Gap Opt Switch OPB802W55Z Optek / TT Electronics 1: £3.82 212In Stock	Mfr. Part No. OPB802W55Z Mouser Part No 828-OPB802W55Z	Optek / TT Electronics	Optical Switches, Transmissive, Phototransistor Output Wide Gap Opt Switch Learn More about Optek / TT Electronics optek tt opb800 w switches	Datasheet	212In Stock	£3.82 £3.62	Min.: 1 Mult.: 1	Optical Switches, Transmissive, Phototransistor Output	Transmissive, Slotted	9.5 mm	9.5 mm
Optical Switches, Transmissive, Phototransistor Output .375" SLOT OPAQUE WIRE LEADS OPB810W51Z Optek / TT Electronics 1: £3.73 149In Stock 1,400Expected 26/11/2026	Mfr. Part No. OPB810W51Z Mouser Part No 828-OPB810W51Z	Optek / TT Electronics	Optical Switches, Transmissive, Phototransistor Output .375" SLOT OPAQUE WIRE LEADS Learn More about Optek / TT Electronics optek tt opb800 w switches	Datasheet	149In Stock 1,400Expected 26/11/2026	£3.73 £3.72 £3.60	Min.: 1 Mult.: 1	Optical Switches, Transmissive, Phototransistor Output	Transmissive, Slotted	9.5 mm	9.5 mm
Optical Switches, Transmissive, Phototransistor Output 1.25in SLOT IR OPB819Z Optek / TT Electronics 1: £4.78 216In Stock	Mfr. Part No. OPB819Z Mouser Part No 828-OPB819Z	Optek / TT Electronics	Optical Switches, Transmissive, Phototransistor Output 1.25in SLOT IR	Datasheet	216In Stock	£4.78 £4.57	Min.: 1 Mult.: 1	Optical Switches, Transmissive, Phototransistor Output	Transmissive, Slotted	31.75 mm	31.75 mm
Optical Switches, Transmissive, Phototransistor Output DUAL SLOTTED 20mA 30V OPB822SD Optek / TT Electronics 1: £3.71 2In Stock 200Expected 04/02/2027	Mfr. Part No. OPB822SD Mouser Part No 828-OPB822SD	Optek / TT Electronics	Optical Switches, Transmissive, Phototransistor Output DUAL SLOTTED 20mA 30V	Datasheet	2In Stock 200Expected 04/02/2027	£3.71 £3.54	Min.: 1 Mult.: 1	Optical Switches, Transmissive, Phototransistor Output	Transmissive, Slotted	2.29 mm	2.29 mm
Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch OPB825 Optek / TT Electronics 1: £1.58 582In Stock	Mfr. Part No. OPB825 Mouser Part No 828-OPB825	Optek / TT Electronics	Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch	Datasheet	582In Stock	£1.58 £1.42	Min.: 1 Mult.: 1	Optical Switches, Transmissive, Phototransistor Output	Transmissive, Slotted	4.06 mm	4.06 mm
Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch OPB825A Optek / TT Electronics 1: £1.60 164In Stock 1,000Expected 24/11/2026	Mfr. Part No. OPB825A Mouser Part No 828-OPB825A	Optek / TT Electronics	Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch	Datasheet	164In Stock 1,000Expected 24/11/2026	£1.60 £1.53 Quote Quote	Min.: 1 Mult.: 1	Optical Switches, Transmissive, Phototransistor Output	Transmissive, Slotted	4.06 mm	4.06 mm
Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch OPB827A Optek / TT Electronics 1: £2.65 6In Stock	Mfr. Part No. OPB827A Mouser Part No 828-OPB827A	Optek / TT Electronics	Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch	Datasheet	6In Stock	£2.65 £2.25 £1.96	Min.: 1 Mult.: 1	Optical Switches, Transmissive, Phototransistor Output	Transmissive, Slotted	3.05 mm	3.05 mm
Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch OPB829DZ Optek / TT Electronics 1: £3.09 208In Stock 400Expected 16/12/2026	Mfr. Part No. OPB829DZ Mouser Part No 828-OPB829DZ	Optek / TT Electronics	Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch	Datasheet	208In Stock 400Expected 16/12/2026	£3.09 £2.96	Min.: 1 Mult.: 1	Optical Switches, Transmissive, Phototransistor Output	Transmissive, Slotted	3.18 mm	3.18 mm
Optical Switches, Transmissive, Phototransistor Output .125" SLOT INFRARED OPB830L51 Optek / TT Electronics 1: £2.19 7In Stock 400Expected 20/11/2026	Mfr. Part No. OPB830L51 Mouser Part No 828-OPB830L51	Optek / TT Electronics	Optical Switches, Transmissive, Phototransistor Output .125" SLOT INFRARED	Datasheet	7In Stock 400Expected 20/11/2026	£2.19 £2.09	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 OPB830W55Z Optek / TT Electronics 1: £3.66 41In Stock 3,200On Order	Mfr. Part No. OPB830W55Z Mouser Part No 828-OPB830W55Z	Optek / TT Electronics	Optical Switches, Transmissive, Phototransistor Output Output Phototranstr Input Diode	Datasheet	41In Stock 3,200On Order On Order Ship Dates Mfr. No: OPB830W55Z Stock: 41 Can Dispatch Immediately On Order: 1,000 Expected 29/12/2026 2,200 Expected 08/02/2027 Factory Lead Time: 16 Weeks	£3.66 £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 OPB832W55Z Optek / TT Electronics 1: £3.77 118In Stock	Mfr. Part No. OPB832W55Z Mouser Part No 828-OPB832W55Z	Optek / TT Electronics	Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch	Datasheet	118In Stock	£3.77 £3.57	Min.: 1 Mult.: 1	Optical Switches, Transmissive, Phototransistor Output	Transmissive, Slotted	3.18 mm	3.18 mm
Optical Switches, Transmissive, Phototransistor Output SLOTTED OPTICAL SW OPB840L11 Optek / TT Electronics 1: £2.57 9In Stock 500Expected 05/02/2027	Mfr. Part No. OPB840L11 Mouser Part No 828-OPB840L11	Optek / TT Electronics	Optical Switches, Transmissive, Phototransistor Output SLOTTED OPTICAL SW	Datasheet	9In Stock 500Expected 05/02/2027	£2.57 £2.47	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 OPB840W11Z Optek / TT Electronics 1: £4.85 195In Stock 800Expected 27/01/2027	Mfr. Part No. OPB840W11Z Mouser Part No 828-OPB840W11Z	Optek / TT Electronics	Optical Switches, Transmissive, Phototransistor Output Output Phototranstr Input Diode	Datasheet	195In Stock 800Expected 27/01/2027	£4.85 £4.59	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 OPB841W55Z Optek / TT Electronics 1: £4.37 231In Stock	Mfr. Part No. OPB841W55Z Mouser Part No 828-OPB841W55Z	Optek / TT Electronics	Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch	Datasheet	231In Stock	£4.37 £4.08 £3.91 £3.79 £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 OPB847 Optek / TT Electronics 1: £1.95 229In Stock	Mfr. Part No. OPB847 Mouser Part No 828-OPB847	Optek / TT Electronics	Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch	Datasheet	229In Stock	£1.95 £1.85	Min.: 1 Mult.: 1	Optical Switches, Transmissive, Phototransistor Output	Transmissive, Slotted	2.54 mm
Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch OPB852A1 Optek / TT Electronics 1: £2.08 93In Stock	Mfr. Part No. OPB852A1 Mouser Part No 828-OPB852A1	Optek / TT Electronics	Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch	Datasheet	93In Stock	£2.08 £1.96	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 OPB853A1 Optek / TT Electronics 1: £2.76 190In Stock	Mfr. Part No. OPB853A1 Mouser Part No 828-OPB853A1	Optek / TT Electronics	Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch	Datasheet	190In Stock	£2.76 £2.64	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 OPB861T55 Optek / TT Electronics 1: £2.09 51In Stock	Mfr. Part No. OPB861T55 Mouser Part No 828-OPB861T55	Optek / TT Electronics	Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch	Datasheet	51In Stock	£2.09 £2.08	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 OPB865N11 Optek / TT Electronics 1: £2.69 370In Stock	Mfr. Part No. OPB865N11 Mouser Part No 828-OPB865N11	Optek / TT Electronics	Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch	Datasheet	370In Stock	£2.69	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 OPB865T55 Optek / TT Electronics 1: £2.49 163In Stock	Mfr. Part No. OPB865T55 Mouser Part No 828-OPB865T55	Optek / TT Electronics	Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch	Datasheet	163In Stock	£2.49 £2.42	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 OPB870N51 Optek / TT Electronics 1: £2.02 380In Stock 500Expected 25/12/2026	Mfr. Part No. OPB870N51 Mouser Part No 828-OPB870N51	Optek / TT Electronics	Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch	Datasheet	380In Stock 500Expected 25/12/2026	£2.02 £1.91	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 OPB870N55 Optek / TT Electronics 1: £2.02 183In Stock	Mfr. Part No. OPB870N55 Mouser Part No 828-OPB870N55	Optek / TT Electronics	Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch	Datasheet	183In Stock	£2.02 £1.91	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 OPB870T51 Optek / TT Electronics 1: £2.03 246In Stock	Mfr. Part No. OPB870T51 Mouser Part No 828-OPB870T51	Optek / TT Electronics	Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch	Datasheet	246In Stock	£2.03	Min.: 1 Mult.: 1	Optical Switches, Transmissive, Phototransistor Output	Transmissive, Slotted	3.18 mm	3.18 mm
Optical Switches, Transmissive, Phototransistor Output SLTTD OPTICAL SWITCH OPB880T11Z Optek / TT Electronics 1: £4.16 42In Stock 200Expected 29/12/2026	Mfr. Part No. OPB880T11Z Mouser Part No 828-OPB880T11Z	Optek / TT Electronics	Optical Switches, Transmissive, Phototransistor Output SLTTD OPTICAL SWITCH Learn More about Optek / TT Electronics optek tt opb88 89z switches	Datasheet	42In Stock 200Expected 29/12/2026	£4.16 £3.95	Min.: 1 Mult.: 1	Optical Switches, Transmissive, Phototransistor Output	Transmissive, Slotted	3.18 mm	3.18 mm