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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.
Optical Switches, Reflective, Phototransistor Output Reflective Line Reader OPB739RWZ Optek / TT Electronics 1: £13.24 37In Stock	Mfr. Part No. OPB739RWZ Mouser Part No 828-OPB739RWZ	Optek / TT Electronics	Optical Switches, Reflective, Phototransistor Output Reflective Line Reader	Datasheet	37In Stock	£13.24 £12.47	Min.: 1 Mult.: 1
Optical Switches, Reflective, Phototransistor Output Reflective Sensor OPB740WZ Optek / TT Electronics 1: £3.20 11In Stock 800On Order	Mfr. Part No. OPB740WZ Mouser Part No 828-OPB740WZ	Optek / TT Electronics	Optical Switches, Reflective, Phototransistor Output Reflective Sensor	Datasheet	11In Stock 800On Order	£3.20 £3.07	Min.: 1 Mult.: 1
Optical Switches, Reflective, Phototransistor Output EMMITER/SENSOR ASSEM OPB742 Optek / TT Electronics 1: £2.13 25In Stock 500Expected 16/11/2026	Mfr. Part No. OPB742 Mouser Part No 828-OPB742	Optek / TT Electronics	Optical Switches, Reflective, Phototransistor Output EMMITER/SENSOR ASSEM	Datasheet	25In Stock 500Expected 16/11/2026	£2.13 £2.03	Min.: 1 Mult.: 1
Optical Switches, Reflective, Phototransistor Output Reflective Switch OPB748WZ Optek / TT Electronics 1: £4.43 49In Stock	Mfr. Part No. OPB748WZ Mouser Part No 828-OPB748WZ	Optek / TT Electronics	Optical Switches, Reflective, Phototransistor Output Reflective Switch	Datasheet	49In Stock	£4.43 £4.12	Min.: 1 Mult.: 1
Optical Switches, Reflective, Phototransistor Output Reflective Sensor OPB750T Optek / TT Electronics 1: £3.87 38In Stock 200Expected 27/11/2026	Mfr. Part No. OPB750T Mouser Part No 828-OPB750T	Optek / TT Electronics	Optical Switches, Reflective, Phototransistor Output Reflective Sensor	Datasheet	38In Stock 200Expected 27/11/2026	£3.87 £3.78	Min.: 1 Mult.: 1
Optical Switches, Reflective, Phototransistor Output Reflective Sensor OPB755TZ Optek / TT Electronics 1: £6.93 12In Stock	Mfr. Part No. OPB755TZ Mouser Part No 828-OPB755TZ	Optek / TT Electronics	Optical Switches, Reflective, Phototransistor Output Reflective Sensor	Datasheet	12In Stock	£6.93 £5.39	Min.: 1 Mult.: 1
Optical Switches, Reflective, Photo IC Output Reflective Sensor Photologic OPB760N Optek / TT Electronics 1: £3.97 53In Stock	Mfr. Part No. OPB760N Mouser Part No 828-OPB760N	Optek / TT Electronics	Optical Switches, Reflective, Photo IC Output Reflective Sensor Photologic	Datasheet	53In Stock	£3.97 £3.80	Min.: 1 Mult.: 1
Optical Switches, Reflective, Photo IC Output Emmiter/Sensor Assy OPB770TZ Optek / TT Electronics 1: £6.14 126In Stock 200Expected 18/02/2027	Mfr. Part No. OPB770TZ Mouser Part No 828-OPB770TZ	Optek / TT Electronics	Optical Switches, Reflective, Photo IC Output Emmiter/Sensor Assy	Datasheet	126In Stock 200Expected 18/02/2027	£6.14 £5.72	Min.: 1 Mult.: 1
Optical Switches, Transmissive, Phototransistor Output Wide Gap Opt Switch OPB800W55Z Optek / TT Electronics 1: £3.63 45In Stock 400Expected 16/11/2026	Mfr. Part No. OPB800W55Z Mouser Part No 828-OPB800W55Z	Optek / TT Electronics	Optical Switches, Transmissive, Phototransistor Output Wide Gap Opt Switch Learn More about Optek / TT Electronics optek tt opb800 w switches	Datasheet	45In Stock 400Expected 16/11/2026	£3.63 £3.46	Min.: 1 Mult.: 1
Optical Switches, Transmissive, Phototransistor Output Wide Gap Opt Switch OPB801L55 Optek / TT Electronics 1: £2.18 221In Stock	Mfr. Part No. OPB801L55 Mouser Part No 828-OPB801L55	Optek / TT Electronics	Optical Switches, Transmissive, Phototransistor Output Wide Gap Opt Switch	Datasheet	221In Stock	£2.18 £2.07	Min.: 1 Mult.: 1
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 Wide Gap Opt Switch OPB802W55Z Optek / TT Electronics 1: £3.82 192In 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	192In Stock	£3.82 £3.62	Min.: 1 Mult.: 1
Optical Switches, Transmissive, Phototransistor Output .375" WIDE GAP 890NM OPB810L51 Optek / TT Electronics 1: £2.24 466In Stock 400On Order	Mfr. Part No. OPB810L51 Mouser Part No 828-OPB810L51	Optek / TT Electronics	Optical Switches, Transmissive, Phototransistor Output .375" WIDE GAP 890NM	Datasheet	466In Stock 400On Order	£2.24 £2.14	Min.: 1 Mult.: 1
Optical Switches, Transmissive, Phototransistor Output .375" SLOT OPAQUE WIRE LEADS OPB810W51Z Optek / TT Electronics 1: £3.73 139In 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	139In Stock 1,400Expected 26/11/2026	£3.73 £3.72 £3.60	Min.: 1 Mult.: 1
Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch OPB817Z Optek / TT Electronics 1: £3.59 245In Stock	Mfr. Part No. OPB817Z Mouser Part No 828-OPB817Z	Optek / TT Electronics	Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch	Datasheet	245In Stock	£3.59 £3.43	Min.: 1 Mult.: 1
Optical Switches, Transmissive, Phototransistor Output 1.25in SLOT IR OPB819Z Optek / TT Electronics 1: £4.78 214In Stock	Mfr. Part No. OPB819Z Mouser Part No 828-OPB819Z	Optek / TT Electronics	Optical Switches, Transmissive, Phototransistor Output 1.25in SLOT IR	Datasheet	214In Stock	£4.78 £4.57	Min.: 1 Mult.: 1
Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch OPB821S3Z Optek / TT Electronics 1: £4.37 200In Stock	Mfr. Part No. OPB821S3Z Mouser Part No 828-OPB821S3Z	Optek / TT Electronics	Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch	Datasheet	200In Stock	£4.37 £4.16	Min.: 1 Mult.: 1
Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch Dual Channel OPB822S Optek / TT Electronics 1: £3.35 230In Stock	Mfr. Part No. OPB822S Mouser Part No 828-OPB822S	Optek / TT Electronics	Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch Dual Channel	Datasheet	230In Stock	£3.35 £3.30	Min.: 1 Mult.: 1
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 Slotted Opt Switch Dual Channel OPB826S Optek / TT Electronics 1: £5.69 169In Stock	Mfr. Part No. OPB826S Mouser Part No 828-OPB826S	Optek / TT Electronics	Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch Dual Channel	Datasheet	169In Stock	£5.69 £5.50	Min.: 1 Mult.: 1
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 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 .125" SLOT INFRARED OPB830L51 Optek / TT Electronics 1: £2.19 2In Stock 400Expected 27/11/2026	Mfr. Part No. OPB830L51 Mouser Part No 828-OPB830L51	Optek / TT Electronics	Optical Switches, Transmissive, Phototransistor Output .125" SLOT INFRARED	Datasheet	2In Stock 400Expected 27/11/2026	£2.19 £2.09	Min.: 1 Mult.: 1
Optical Switches, Transmissive, Phototransistor Output Output Phototranstr Input Diode OPB830W55Z Optek / TT Electronics 1: £3.66 5In 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	5In Stock 3,200On Order On Order Ship Dates Mfr. No: OPB830W55Z Stock: 5 Can Dispatch Immediately On Order: 1,000 Expected 29/12/2026 2,200 Expected 10/02/2027 Factory Lead Time: 16 Weeks	£3.66 £3.59	Min.: 1 Mult.: 1
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

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