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

20 mA Bulk Optical Switches

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

Types of Optical Switches

List Images

Results: 210

Applied Filters:

If - Forward Current = 20 mA Packaging = Bulk

Manufacturer

Product Type

Sensing Method

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 Slotted Opt Switch

OPB840L55
Optek / TT Electronics
1: 2,65 €
500Expected 10/16/2026

Mfr. Part No.
OPB840L55

Mouser Part No
828-OPB840L55

Optek / TT Electronics

Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch

Datasheet

500Expected 10/16/2026

2,65 €

2,50 €

Min.: 1
Mult.: 1

Optical Switches, Transmissive, Phototransistor Output

Transmissive, Slotted

3.18 mm

Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch

OPB842W55Z
Optek / TT Electronics
1: 4,17 €
1.137On Order

Mfr. Part No.
OPB842W55Z

Mouser Part No
828-OPB842W55Z

Optek / TT Electronics

Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch

Datasheet

1.137On Order

4,17 €

3,94 €

Min.: 1
Mult.: 1

Optical Switches, Transmissive, Phototransistor Output

Transmissive, Slotted

3.18 mm

Optical Switches, Transmissive, Phototransistor Output 1.25in SLOT IR

OPB819Z
Optek / TT Electronics
1: 5,48 €
216Expected 9/22/2026

Mfr. Part No.
OPB819Z

Mouser Part No
828-OPB819Z

Optek / TT Electronics

Optical Switches, Transmissive, Phototransistor Output 1.25in SLOT IR

Datasheet

216Expected 9/22/2026

5,48 €

5,23 €

Min.: 1
Mult.: 1

Optical Switches, Transmissive, Phototransistor Output

Transmissive, Slotted

31.75 mm

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

OPB822S
Optek / TT Electronics
1: 3,78 €
230Expected 11/5/2026

Mfr. Part No.
OPB822S

Mouser Part No
828-OPB822S

Optek / TT Electronics

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

Datasheet

230Expected 11/5/2026

3,78 €

Min.: 1
Mult.: 1

Optical Switches, Transmissive, Phototransistor Output

Transmissive, Slotted

2.29 mm

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

OPB826SD
Optek / TT Electronics
1: 8,54 €
98Expected 11/19/2026

Mfr. Part No.
OPB826SD

Mouser Part No
828-OPB826SD

Optek / TT Electronics

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

Datasheet

98Expected 11/19/2026

8,54 €

8,16 €

Min.: 1
Mult.: 1

Optical Switches, Transmissive, Phototransistor Output

Transmissive, Slotted

2.54 mm

Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch

OPB882T55Z
Optek / TT Electronics
1: 4,14 €
190Expected 10/21/2026

Mfr. Part No.
OPB882T55Z

Mouser Part No
828-OPB882T55Z

Optek / TT Electronics

Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch

Learn More

Datasheet

190Expected 10/21/2026

4,14 €

3,76 €

Min.: 1
Mult.: 1

Optical Switches, Transmissive, Phototransistor Output

Transmissive, Slotted

3.18 mm

Optical Switches, Reflective, Phototransistor Output Reflective 940/PTR 1.6V Max 4.1mm space

LTH-1550-06
LITEON
5.000: 0,445 €
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
LTH-1550-06

Mouser Part No
859-LTH-1550-06

LITEON

Optical Switches, Reflective, Phototransistor Output Reflective 940/PTR 1.6V Max 4.1mm space

Datasheet

Non-Stocked Lead-Time 12 Weeks

0,445 €

0,416 €

0,406 €

Min.: 5.000
Mult.: 250

Optical Switches, Reflective, Phototransistor Output

Reflective

3.81 mm

Optical Switches, Reflective, Phototransistor Output Reflective 940/PTR 1.6V Max 6.9mm space

LTH-1650-01
LITEON
5.000: 0,314 €
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
LTH-1650-01

Mouser Part No
859-LTH-1650-01

LITEON

Optical Switches, Reflective, Phototransistor Output Reflective 940/PTR 1.6V Max 6.9mm space

Datasheet

Non-Stocked Lead-Time 12 Weeks

0,314 €

0,292 €

0,285 €

Min.: 5.000
Mult.: 5.000

Optical Switches, Reflective, Phototransistor Output

Reflective

3.81 mm

Optical Switches, Transmissive, Phototransistor Output Photointerrupter 940/PTR, w/ARM

LTH-306-09
LITEON
2.000: 0,429 €
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
LTH-306-09

Mouser Part No
859-LTH-306-09

LITEON

Optical Switches, Transmissive, Phototransistor Output Photointerrupter 940/PTR, w/ARM

Datasheet

Non-Stocked Lead-Time 12 Weeks

0,429 €

0,405 €

0,384 €

0,358 €

0,347 €

Min.: 2.000
Mult.: 250

Optical Switches, Transmissive, Phototransistor Output

Transmissive, Actuator Type

2.8 mm

Optical Switches, Reflective, Phototransistor Output Visible Emitter 574nm

MTRS5750
Marktech Optoelectronics
1: 5,59 €
Non-Stocked

Mfr. Part No.
MTRS5750

Mouser Part No
193-MTRS5750

Marktech Optoelectronics

Optical Switches, Reflective, Phototransistor Output Visible Emitter 574nm

Datasheet

Non-Stocked

5,59 €

4,20 €

3,39 €

3,03 €

2,81 €

Min.: 1
Mult.: 1

Optical Switches, Reflective, Phototransistor Output

Reflective

0.5 mm to 1.5 mm

Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch

OPB360L51
Optek / TT Electronics
500: 2,03 €
Non-Stocked

Mfr. Part No.
OPB360L51

Mouser Part No
828-OPB360L51

Optek / TT Electronics

Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch

Datasheet

Non-Stocked

2,03 €

Min.: 500
Mult.: 500

Optical Switches, Transmissive, Phototransistor Output

Transmissive, Slotted

3.18 mm

Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch

OPB360L55
Optek / TT Electronics
500: 2,01 €
Non-Stocked

Mfr. Part No.
OPB360L55

Mouser Part No
828-OPB360L55

Optek / TT Electronics

Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch

Datasheet

Non-Stocked

2,01 €

Quote

Min.: 500
Mult.: 500

Optical Switches, Transmissive, Phototransistor Output

Transmissive, Slotted

3.18 mm

Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch

OPB365N51
Optek / TT Electronics
1.000: 2,61 €
Non-Stocked Lead-Time 16 Weeks

Mfr. Part No.
OPB365N51

Mouser Part No
828-OPB365N51

Optek / TT Electronics

Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch

Datasheet

Non-Stocked Lead-Time 16 Weeks

2,61 €

Min.: 1.000
Mult.: 1.000

Optical Switches, Transmissive, Phototransistor Output

Transmissive, Slotted

3.18 mm

Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch

OPB370T11
Optek / TT Electronics
500: 2,39 €
Non-Stocked

Mfr. Part No.
OPB370T11

Mouser Part No
828-OPB370T11

Optek / TT Electronics

Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch

Datasheet

Non-Stocked

2,39 €

Min.: 500
Mult.: 500

Optical Switches, Transmissive, Phototransistor Output

Transmissive, Slotted

3.18 mm

Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch

OPB370T55
Optek / TT Electronics
500: 2,32 €
Non-Stocked Lead-Time 16 Weeks

Mfr. Part No.
OPB370T55

Mouser Part No
828-OPB370T55

Optek / TT Electronics

Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch

Datasheet

Non-Stocked Lead-Time 16 Weeks

2,32 €

Min.: 500
Mult.: 500

Optical Switches, Transmissive, Phototransistor Output

Transmissive, Slotted

3.18 mm

Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch

OPB375L11
Optek / TT Electronics
1: 2,52 €
Non-Stocked

Mfr. Part No.
OPB375L11

Mouser Part No
828-OPB375L11

Optek / TT Electronics

Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch

Datasheet

Non-Stocked

2,52 €

2,45 €

Min.: 1
Mult.: 1

Optical Switches, Transmissive, Phototransistor Output

Transmissive, Slotted

3.18 mm

Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch

OPB375T55
Optek / TT Electronics
500: 2,07 €
Non-Stocked

Mfr. Part No.
OPB375T55

Mouser Part No
828-OPB375T55

Optek / TT Electronics

Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch

Datasheet

Non-Stocked

2,07 €

Min.: 500
Mult.: 500

Optical Switches, Transmissive, Phototransistor Output

Transmissive, Slotted

3.18 mm

Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch

OPB380L55Z
Optek / TT Electronics
200: 4,21 €
Non-Stocked

Mfr. Part No.
OPB380L55Z

Mouser Part No
828-OPB380L55Z

Optek / TT Electronics

Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch

Learn More

Datasheet

Non-Stocked

4,21 €

Min.: 200
Mult.: 200

Optical Switches, Transmissive, Phototransistor Output

Transmissive, Slotted

3.18 mm

Optical Switches, Transmissive, Phototransistor Output SLOTTED OPTIC SWITCH

OPB380N11Z
Optek / TT Electronics
1: 5,09 €
Non-Stocked Lead-Time 16 Weeks

Mfr. Part No.
OPB380N11Z

Mouser Part No
828-OPB380N11Z

Optek / TT Electronics

Optical Switches, Transmissive, Phototransistor Output SLOTTED OPTIC SWITCH

Learn More

Datasheet

Non-Stocked Lead-Time 16 Weeks

5,09 €

4,11 €

Min.: 1
Mult.: 1

Optical Switches, Transmissive, Phototransistor Output

Transmissive, Slotted

3.18 mm

Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch

OPB390L11Z
Optek / TT Electronics
1: 4,46 €
Non-Stocked Lead-Time 16 Weeks

Mfr. Part No.
OPB390L11Z

Mouser Part No
828-OPB390L11Z

Optek / TT Electronics

Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch

Learn More

Datasheet

Non-Stocked Lead-Time 16 Weeks

4,46 €

4,25 €

Min.: 1
Mult.: 1

Optical Switches, Transmissive, Phototransistor Output

Transmissive, Slotted

3.18 mm

Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch

OPB390T11Z
Optek / TT Electronics
200: 4,55 €
Non-Stocked

Mfr. Part No.
OPB390T11Z

Mouser Part No
828-OPB390T11Z

Optek / TT Electronics

Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch

Learn More

Datasheet

Non-Stocked

4,55 €

4,47 €

4,39 €

Min.: 200
Mult.: 200

Optical Switches, Transmissive, Phototransistor Output

Transmissive, Slotted

3.18 mm

Optical Switches, Transmissive, Phototransistor Output Wide Gap Opt Switch

OPB802L55
Optek / TT Electronics
1: 2,42 €
Non-Stocked Lead-Time 16 Weeks

Mfr. Part No.
OPB802L55

Mouser Part No
828-OPB802L55

Optek / TT Electronics

Optical Switches, Transmissive, Phototransistor Output Wide Gap Opt Switch

Datasheet

Non-Stocked Lead-Time 16 Weeks

2,42 €

2,35 €

Min.: 1
Mult.: 1

Optical Switches, Transmissive, Phototransistor Output

Transmissive, Slotted

9.5 mm

Optical Switches, Transmissive, Phototransistor Output Wd Gap Opt Switch

OPB812L55
Optek / TT Electronics
1: 2,31 €
Non-Stocked

Mfr. Part No.
OPB812L55

Mouser Part No
828-OPB812L55

Optek / TT Electronics

Optical Switches, Transmissive, Phototransistor Output Wd Gap Opt Switch

Datasheet

Non-Stocked

2,31 €

Min.: 1
Mult.: 1

Optical Switches, Transmissive, Phototransistor Output

Transmissive, Slotted

9.5 mm

Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch

OPB820S3
Optek / TT Electronics
500: 3,31 €
Non-Stocked

Mfr. Part No.
OPB820S3

Mouser Part No
828-OPB820S3

Optek / TT Electronics

Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch

Datasheet

Non-Stocked

3,31 €

Min.: 500
Mult.: 500

Optical Switches, Transmissive, Phototransistor Output

Transmissive, Slotted

2.03 mm

Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch with wires

OPB821TX
Optek / TT Electronics
100: 301,20 €
Non-Stocked

Mfr. Part No.
OPB821TX

Mouser Part No
828-OPB821TX

Optek / TT Electronics

Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch with wires

Datasheet

Non-Stocked

301,20 €

Min.: 100
Mult.: 100

Optical Switches, Transmissive, Phototransistor Output

Transmissive, Slotted

2.03 mm

20 mA Bulk Optical Switches

Types of Optical Switches

Customer Service Office

Company

Resources

Support

0.2 mm to 4 mm
0.5 mm to 1.5 mm
1.27 mm
2.03 mm
2.29 mm
2.54 mm
2.8 mm
3.05 mm
3.18 mm
3.8 mm
3.81 mm
3.94 mm
4.06 mm
5 mm
5.1 mm
5.2 mm
5.21 mm
6 mm
9.5 mm
22.86 mm