.hide-partial { max-height: none; } .show-more { display: none; }

Transmissive, Slotted Optical Switches

.catnav-wrapper { height: auto; overflow: visible; } .catalog-nav-tabs ul { white-space: normal; }

Types of Optical Switches

List Images

Results: 509

Applied Filters:

Sensing Method = Transmissive, Slotted

Manufacturer

Product Type

Slot Width

Sensing Distance

Reset All

Search within results

In Stock

Normally Stocked

Active

New Products

RoHS Compliant

.search-refine-wrapper { display: inline-block; min-width: 100%; } .scroll-body { overflow-x: visible; } .search-table-wrapper { overflow: visible; } .hide-partial { max-height: none; } .show-more { display: none; }

Part #

Optical Switches, Transmissive, Phototransistor Output Wide Gap Opt Switch

OPB802W55Z
Optek / TT Electronics
1: £3.82
235In Stock

Mfr. Part No.
OPB802W55Z

Mouser Part No
828-OPB802W55Z

Optek / TT Electronics

Optical Switches, Transmissive, Phototransistor Output Wide Gap Opt Switch

Learn More

Datasheet

235In Stock

£3.82

£3.62

Min.: 1
Mult.: 1

Optical Switches, Transmissive, Phototransistor Output

Transmissive, Slotted

9.5 mm

Optical Switches, Transmissive, Phototransistor Output .375" WIDE GAP 890NM

OPB810L51
Optek / TT Electronics
1: £2.24
311In Stock
500Expected 15/09/2026

Mfr. Part No.
OPB810L51

Mouser Part No
828-OPB810L51

Optek / TT Electronics

Optical Switches, Transmissive, Phototransistor Output .375" WIDE GAP 890NM

Datasheet

311In Stock

500Expected 15/09/2026

£2.24

£2.14

Min.: 1
Mult.: 1

Optical Switches, Transmissive, Phototransistor Output

Transmissive, Slotted

9.5 mm

Optical Switches, Transmissive, Phototransistor Output .21in SLOT INFRARED

OPB818
Optek / TT Electronics
1: £1.91
276In Stock
500Expected 25/09/2026

Mfr. Part No.
OPB818

Mouser Part No
828-OPB818

Optek / TT Electronics

Optical Switches, Transmissive, Phototransistor Output .21in SLOT INFRARED

Datasheet

Product Comments

276In Stock

500Expected 25/09/2026

£1.91

£1.90

Min.: 1
Mult.: 1

Optical Switches, Transmissive, Phototransistor Output

Transmissive, Slotted

5.1 mm

Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch

OPB821S10Z
Optek / TT Electronics
1: £4.26
163In Stock
100Expected 27/07/2026

Mfr. Part No.
OPB821S10Z

Mouser Part No
828-OPB821S10Z

Optek / TT Electronics

Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch

Datasheet

163In Stock

100Expected 27/07/2026

£4.26

£4.16

Min.: 1
Mult.: 1

Optical Switches, Transmissive, Phototransistor Output

Transmissive, Slotted

2.03 mm

Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch

OPB821S3Z
Optek / TT Electronics
1: £4.37
111In Stock
200Expected 26/10/2026

Mfr. Part No.
OPB821S3Z

Mouser Part No
828-OPB821S3Z

Optek / TT Electronics

Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch

Datasheet

111In Stock

200Expected 26/10/2026

£4.37

£4.16

Min.: 1
Mult.: 1

Optical Switches, Transmissive, Phototransistor Output

Transmissive, Slotted

2.03 mm

Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch Dual Channel

OPB822S
Optek / TT Electronics
1: £3.30
136In Stock

Mfr. Part No.
OPB822S

Mouser Part No
828-OPB822S

Optek / TT Electronics

Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch Dual Channel

Datasheet

136In Stock

£3.30

Min.: 1
Mult.: 1

Optical Switches, Transmissive, Phototransistor Output

Transmissive, Slotted

2.29 mm

Optical Switches, Transmissive, Phototransistor Output DUAL SLOTTED 20mA 30V

OPB822SD
Optek / TT Electronics
1: £3.63
188In Stock

Mfr. Part No.
OPB822SD

Mouser Part No
828-OPB822SD

Optek / TT Electronics

Optical Switches, Transmissive, Phototransistor Output DUAL SLOTTED 20mA 30V

Datasheet

188In Stock

£3.63

£3.54

Min.: 1
Mult.: 1

Optical Switches, Transmissive, Phototransistor Output

Transmissive, Slotted

2.29 mm

Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch

OPB825
Optek / TT Electronics
1: £1.58
685In Stock

Mfr. Part No.
OPB825

Mouser Part No
828-OPB825

Optek / TT Electronics

Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch

Datasheet

685In Stock

£1.58

£1.50

Quote

Min.: 1
Mult.: 1

Optical Switches, Transmissive, Phototransistor Output

Transmissive, Slotted

4.06 mm

Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch

OPB829DZ
Optek / TT Electronics
1: £3.09
52In Stock
400Expected 28/08/2026

Mfr. Part No.
OPB829DZ

Mouser Part No
828-OPB829DZ

Optek / TT Electronics

Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch

Datasheet

52In Stock

400Expected 28/08/2026

£3.09

£2.96

Min.: 1
Mult.: 1

Optical Switches, Transmissive, Phototransistor Output

Transmissive, Slotted

3.18 mm

Optical Switches, Transmissive, Phototransistor Output .125" SLOT INFRARED

OPB830L51
Optek / TT Electronics
1: £2.23
47In Stock

Mfr. Part No.
OPB830L51

Mouser Part No
828-OPB830L51

Optek / TT Electronics

Optical Switches, Transmissive, Phototransistor Output .125" SLOT INFRARED

Datasheet

47In Stock

£2.23

£2.09

Min.: 1
Mult.: 1

Optical Switches, Transmissive, Phototransistor Output

Transmissive, Slotted

3.18 mm

Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch

OPB830W11Z
Optek / TT Electronics
1: £4.35
69In Stock
1,800Expected 08/10/2026

Mfr. Part No.
OPB830W11Z

Mouser Part No
828-OPB830W11Z

Optek / TT Electronics

Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch

Datasheet

69In Stock

1,800Expected 08/10/2026

£4.35

£4.28

Min.: 1
Mult.: 1

Optical Switches, Transmissive, Phototransistor Output

Transmissive, Slotted

3.18 mm

Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch

OPB830W51Z
Optek / TT Electronics
1: £4.09
210In Stock
800Expected 01/09/2026

Mfr. Part No.
OPB830W51Z

Mouser Part No
828-OPB830W51Z

Optek / TT Electronics

Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch

Datasheet

210In Stock

800Expected 01/09/2026

£4.09

£4.07

£3.95

Min.: 1
Mult.: 1

Optical Switches, Transmissive, Phototransistor Output

Transmissive, Slotted

3.18 mm

Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch

OPB832W55Z
Optek / TT Electronics
1: £3.77
147In Stock

Mfr. Part No.
OPB832W55Z

Mouser Part No
828-OPB832W55Z

Optek / TT Electronics

Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch

Datasheet

147In Stock

£3.77

£3.57

Min.: 1
Mult.: 1

Optical Switches, Transmissive, Phototransistor Output

Transmissive, Slotted

3.18 mm

Optical Switches, Transmissive, Phototransistor Output SLOTTED OPTICAL SW

OPB840L11
Optek / TT Electronics
1: £2.57
201In Stock

Mfr. Part No.
OPB840L11

Mouser Part No
828-OPB840L11

Optek / TT Electronics

Optical Switches, Transmissive, Phototransistor Output SLOTTED OPTICAL SW

Datasheet

201In Stock

£2.57

£2.35

Min.: 1
Mult.: 1

Optical Switches, Transmissive, Phototransistor Output

Transmissive, Slotted

3.18 mm

Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch

OPB840W51Z
Optek / TT Electronics
1: £3.95
29In Stock
400Expected 20/07/2026

Mfr. Part No.
OPB840W51Z

Mouser Part No
828-OPB840W51Z

Optek / TT Electronics

Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch

Datasheet

29In Stock

400Expected 20/07/2026

£3.95

£3.77

Min.: 1
Mult.: 1

Optical Switches, Transmissive, Phototransistor Output

Transmissive, Slotted

3.18 mm

Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch

OPB847
Optek / TT Electronics
1: £1.95
284In Stock

Mfr. Part No.
OPB847

Mouser Part No
828-OPB847

Optek / TT Electronics

Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch

Datasheet

284In 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

Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch

OPB853A1
Optek / TT Electronics
1: £2.76
232In Stock

Mfr. Part No.
OPB853A1

Mouser Part No
828-OPB853A1

Optek / TT Electronics

Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch

Datasheet

232In Stock

£2.76

£2.64

Min.: 1
Mult.: 1

Optical Switches, Transmissive, Phototransistor Output

Transmissive, Slotted

3.18 mm

Optical Switches, Transmissive, Phototransistor Output Output Phototranstr Input Diode

OPB855
Optek / TT Electronics
1: £1.68
478In Stock
1,450Expected 24/09/2026

Mfr. Part No.
OPB855

Mouser Part No
828-OPB855

Optek / TT Electronics

Optical Switches, Transmissive, Phototransistor Output Output Phototranstr Input Diode

Datasheet

478In Stock

1,450Expected 24/09/2026

£1.68

£1.62

Quote

Min.: 1
Mult.: 1

Optical Switches, Transmissive, Phototransistor Output

Transmissive, Slotted

5.21 mm

Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch

OPB861T55
Optek / TT Electronics
1: £2.37
171In Stock

Mfr. Part No.
OPB861T55

Mouser Part No
828-OPB861T55

Optek / TT Electronics

Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch

Datasheet

171In Stock

£2.37

£2.08

Min.: 1
Mult.: 1

Optical Switches, Transmissive, Phototransistor Output

Transmissive, Slotted

3.18 mm

Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch

OPB865T55
Optek / TT Electronics
1: £2.42
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

£2.42

Min.: 1
Mult.: 1

Optical Switches, Transmissive, Phototransistor Output

Transmissive, Slotted

3.18 mm

Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch

OPB870T51
Optek / TT Electronics
1: £2.03
441In Stock

Mfr. Part No.
OPB870T51

Mouser Part No
828-OPB870T51

Optek / TT Electronics

Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch

Datasheet

441In Stock

£2.03

Min.: 1
Mult.: 1

Optical Switches, Transmissive, Phototransistor Output

Transmissive, Slotted

3.18 mm

Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch

OPB880L51Z
Optek / TT Electronics
1: £3.70
116In Stock
400Expected 07/09/2026

Mfr. Part No.
OPB880L51Z

Mouser Part No
828-OPB880L51Z

Optek / TT Electronics

Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch

Learn More

Datasheet

116In Stock

400Expected 07/09/2026

£3.70

£3.42

£3.40

Min.: 1
Mult.: 1

Optical Switches, Transmissive, Phototransistor Output

Transmissive, Slotted

3.18 mm

Optical Switches, Transmissive, Phototransistor Output SLTTD OPTICAL SWITCH

OPB880T11Z
Optek / TT Electronics
1: £4.16
67In Stock

Mfr. Part No.
OPB880T11Z

Mouser Part No
828-OPB880T11Z

Optek / TT Electronics

Optical Switches, Transmissive, Phototransistor Output SLTTD OPTICAL SWITCH

Learn More

Datasheet

67In Stock

£4.16

£3.75

Min.: 1
Mult.: 1

Optical Switches, Transmissive, Phototransistor Output

Transmissive, Slotted

3.18 mm

Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch

OPB880T55Z
Optek / TT Electronics
1: £3.68
149In Stock
800Expected 20/07/2026

Mfr. Part No.
OPB880T55Z

Mouser Part No
828-OPB880T55Z

Optek / TT Electronics

Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch

Learn More

Datasheet

149In Stock

800Expected 20/07/2026

£3.68

£3.47

Min.: 1
Mult.: 1

Optical Switches, Transmissive, Phototransistor Output

Transmissive, Slotted

3.18 mm

Transmissive, Slotted Optical Switches

Types of Optical Switches

Customer Service Office

Company

Resources

Support

0.5 mm
0.8 mm
1.1 mm
1.2 mm
2 mm
2.03 mm
2.29 mm
2.54 mm
2.79 mm
2.8 mm
3 mm
3.05 mm
3.1 mm
3.175 mm
3.18 mm
3.2 mm
3.3 mm
3.4 mm
3.5 mm
3.6 mm

1.1 mm
1.2 mm
2 mm
2.03 mm
2.29 mm
2.54 mm
2.8 mm
3 mm
3.05 mm
3.18 mm
3.2 mm
3.4 mm
3.6 mm
3.8 mm
3.94 mm
4 mm
4.06 mm
4.83 mm
5 mm
5.1 mm