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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, Transmissive, Phototransistor Output Slotted Opt Switch OPB841W51Z Optek / TT Electronics 1: £4.36 3,988In Stock	Mfr. Part No. OPB841W51Z Mouser Part No 828-OPB841W51Z	Optek / TT Electronics	Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch	Datasheet	3,988In Stock	£4.36 £4.12 £4.04 £4.03	Min.: 1 Mult.: 1
Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch OPB816Z Optek / TT Electronics 1: £3.07 4,873In Stock	Mfr. Part No. OPB816Z Mouser Part No 828-OPB816Z	Optek / TT Electronics	Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch	Datasheet	4,873In Stock	£3.07	Min.: 1 Mult.: 1
Optical Switches, Transmissive, Phototransistor Output .21in SLOT INFRARED OPB848 Optek / TT Electronics 1: £1.86 9,015In Stock	Mfr. Part No. OPB848 Mouser Part No 828-OPB848	Optek / TT Electronics	Optical Switches, Transmissive, Phototransistor Output .21in SLOT INFRARED	Datasheet	9,015In Stock	£1.86 £1.67 Quote Quote	Min.: 1 Mult.: 1
Transistor Output Optocouplers Optical Isoloator OPI1264A Optek / TT Electronics 1: £2.19 7,160In Stock	Mfr. Part No. OPI1264A Mouser Part No 828-OPI1264A	Optek / TT Electronics	Transistor Output Optocouplers Optical Isoloator	Datasheet	7,160In Stock	£2.19 £2.08 £2.01 £1.95 View £1.93 Quote	Min.: 1 Mult.: 1
Single Colour LEDs Blue-Green 505 nm OVLGC0C6B9 Optek / TT Electronics 1: £0.351 38,334In Stock	Mfr. Part No. OVLGC0C6B9 Mouser Part No 828-OVLGC0C6B9	Optek / TT Electronics	Single Colour LEDs Blue-Green 505 nm	Datasheet	38,334In Stock	£0.351 £0.314 £0.299 £0.291 View £0.277 £0.269 £0.262	Min.: 1 Mult.: 1
Optical Switches, Transmissive, Photo IC Output SLOTTED W/WIRE LEADS OPB492T11Z Optek / TT Electronics 1: £3.65 3,686In Stock	Mfr. Part No. OPB492T11Z Mouser Part No 828-OPB492T11Z	Optek / TT Electronics	Optical Switches, Transmissive, Photo IC Output SLOTTED W/WIRE LEADS	Datasheet	3,686In Stock	£3.65 £3.36 £3.35	Min.: 1 Mult.: 1
Single Colour LEDs Red 623 nm OVLLR8C7 Optek / TT Electronics 1: £0.291 32,215In Stock	Mfr. Part No. OVLLR8C7 Mouser Part No 828-OVLLR8C7	Optek / TT Electronics	Single Colour LEDs Red 623 nm	Datasheet	32,215In Stock	£0.291 £0.277 £0.269 £0.254 £0.233	Min.: 1 Mult.: 1
Board Mount Hall Effect/Magnetic Sensors HALL EFFECT SENSOR OHN3140U Optek / TT Electronics 1: £8.13 330In Stock	Mfr. Part No. OHN3140U Mouser Part No 828-OHN3140U	Optek / TT Electronics	Board Mount Hall Effect/Magnetic Sensors HALL EFFECT SENSOR Learn More about Optek / TT Electronics optek high reliability sensors	Datasheet	330In Stock	£8.13 £8.12 £8.02 £4.59 View £4.14 Quote	Min.: 1 Mult.: 1
Infrared Emitters Infrared 890nm OP266A Optek / TT Electronics 1: £0.90 3,355In Stock	Mfr. Part No. OP266A Mouser Part No 828-OP266A	Optek / TT Electronics	Infrared Emitters Infrared 890nm	Datasheet	3,355In Stock	£0.90 £0.837 £0.807 £0.791 £0.786	Min.: 1 Mult.: 1
Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch OPB365P55 Optek / TT Electronics 1: £2.54 599In Stock 400Expected 01/12/2026	Mfr. Part No. OPB365P55 Mouser Part No 828-OPB365P55	Optek / TT Electronics	Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch	Datasheet	599In Stock 400Expected 01/12/2026	£2.54 £2.15	Min.: 1 Mult.: 1
Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch OPB390P11Z Optek / TT Electronics 1: £3.88 1,172In Stock	Mfr. Part No. OPB390P11Z Mouser Part No 828-OPB390P11Z	Optek / TT Electronics	Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch Learn More about Optek / TT Electronics optek tt opb380 90z switches	Datasheet	1,172In Stock	£3.88 £3.49	Min.: 1 Mult.: 1
Optical Switches, Reflective, Photo IC Output Reflective Sensor OPB720B-12Z Optek / TT Electronics 1: £12.37 296In Stock	Mfr. Part No. OPB720B-12Z Mouser Part No 828-OPB720B-12Z	Optek / TT Electronics	Optical Switches, Reflective, Photo IC Output Reflective Sensor	Datasheet	296In Stock	£12.37 £12.16 £11.45	Min.: 1 Mult.: 1
Transistor Output Optocouplers Fiber Optic Isolator 66mm iso dist Side Looker, Transistor OPI1280-066 Optek / TT Electronics 1: £4.93 772In Stock	Mfr. Part No. OPI1280-066 Mouser Part No 828-OPI1280-066	Optek / TT Electronics	Transistor Output Optocouplers Fiber Optic Isolator 66mm iso dist Side Looker, Transistor	Datasheet	772In Stock	£4.93 £4.36 £4.32	Min.: 1 Mult.: 1
Single Colour LEDs Red 631 nm OVLGS0C8B9 Optek / TT Electronics 1: £0.187 39,448In Stock	Mfr. Part No. OVLGS0C8B9 Mouser Part No 828-OVLGS0C8B9	Optek / TT Electronics	Single Colour LEDs Red 631 nm	Datasheet	39,448In Stock	£0.187 £0.164 £0.163 £0.15 View £0.142 £0.135	Min.: 1 Mult.: 1
Level Sensors Calibration Circuit With OPB350L250 OCB350L250Z Optek / TT Electronics 1: £18.70 116In Stock	Mfr. Part No. OCB350L250Z Mouser Part No 828-OCB350L250Z	Optek / TT Electronics	Level Sensors Calibration Circuit With OPB350L250 Learn More about Optek / TT Electronics optek tt sensor calibration boards	Datasheet	116In Stock	£18.70 £18.10 £17.38	Min.: 1 Mult.: 1
Infrared Emitters Infrared 935nm OP140D Optek / TT Electronics 1: £0.553 3,828In Stock	Mfr. Part No. OP140D Mouser Part No 828-OP140D	Optek / TT Electronics	Infrared Emitters Infrared 935nm	Datasheet	3,828In Stock	£0.553 £0.525 £0.508 £0.495	Min.: 1 Mult.: 1
Infrared Emitters Infrared 935nm OP168FB Optek / TT Electronics 1: £0.829 5,032In Stock	Mfr. Part No. OP168FB Mouser Part No 828-OP168FB	Optek / TT Electronics	Infrared Emitters Infrared 935nm	Datasheet	5,032In Stock	£0.829 £0.777 £0.754 £0.732 View £0.726 £0.718	Min.: 1 Mult.: 1
Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch OPB390T55Z Optek / TT Electronics 1: £3.70 690In Stock	Mfr. Part No. OPB390T55Z Mouser Part No 828-OPB390T55Z	Optek / TT Electronics	Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch Learn More about Optek / TT Electronics optek tt opb380 90z switches	Datasheet	690In Stock	£3.70 £3.50 £3.49 £3.46 £3.42	Min.: 1 Mult.: 1
Optical Switches, Reflective, Phototransistor Output EMMITER/SENSOR ASSEM OPB710 Optek / TT Electronics 1: £6.75 514In Stock	Mfr. Part No. OPB710 Mouser Part No 828-OPB710	Optek / TT Electronics	Optical Switches, Reflective, Phototransistor Output EMMITER/SENSOR ASSEM	Datasheet	514In Stock	£6.75 £6.55 £6.40	Min.: 1 Mult.: 1
Optical Switches, Transmissive, Phototransistor Output Wd Gap Opt Switch OPB811L55 Optek / TT Electronics 1: £1.98 1,062In Stock	Mfr. Part No. OPB811L55 Mouser Part No 828-OPB811L55	Optek / TT Electronics	Optical Switches, Transmissive, Phototransistor Output Wd Gap Opt Switch	Datasheet	1,062In Stock	£1.98 £1.87	Min.: 1 Mult.: 1
Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch OPB870N11 Optek / TT Electronics 1: £2.34 602In Stock	Mfr. Part No. OPB870N11 Mouser Part No 828-OPB870N11	Optek / TT Electronics	Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch	Datasheet	602In Stock	£2.34 £2.15 £2.14 £2.10 £2.09	Min.: 1 Mult.: 1
Single Colour LEDs Blue 470 nm OVLFB3C7 Optek / TT Electronics 1: £0.262 18,720In Stock	Mfr. Part No. OVLFB3C7 Mouser Part No 828-OVLFB3C7	Optek / TT Electronics	Single Colour LEDs Blue 470 nm	Datasheet	18,720In Stock	£0.262 £0.249 £0.247 £0.246 View £0.239 £0.235 £0.227 £0.223	Min.: 1 Mult.: 1
Infrared Emitters Infrared 850nm OP234 Optek / TT Electronics 1: £4.02 988In Stock	Mfr. Part No. OP234 Mouser Part No 828-OP234	Optek / TT Electronics	Infrared Emitters Infrared 850nm	Datasheet	988In Stock	£4.02 £3.79 £3.65 £3.62	Min.: 1 Mult.: 1
Phototransistors Photo Transistor OP800WSL Optek / TT Electronics 1: £2.50 771In Stock 2,000Expected 03/12/2026	Mfr. Part No. OP800WSL Mouser Part No 828-OP800WSL	Optek / TT Electronics	Phototransistors Photo Transistor	Datasheet	771In Stock 2,000Expected 03/12/2026	£2.50 £2.49 £2.48 £2.40	Min.: 1 Mult.: 1
Photo IC Sensors Photologic Sensor OPL583 Optek / TT Electronics 1: £1.78 1,781In Stock	Mfr. Part No. OPL583 Mouser Part No 828-OPL583	Optek / TT Electronics	Photo IC Sensors Photologic Sensor	Datasheet	1,781In Stock	£1.78 £1.70 £1.68 Quote Quote	Min.: 1 Mult.: 1

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