Opto-electronics – Mouser United Kingdom

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Infrared LEDs & Optical Sensors

ROHM Semiconductor Infrared LEDs and Optical Sensors include a range of optical sensors and communication devices, from IR LEDs to phototransistors and photointerrupters. ROHM Semiconductor IR LEDs and transistor sensor products are offered in packages ranging from standard T1/T1 1/4 packages to very small low profile (0.9mm) SMD top view and side view packages, all featuring ambient light resistance with wide or narrow viewing angles. These optical sensor devices are suitable for remote control transmitters, games, security, industrial applications, and proximity detection.

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Types of Opto-electronics

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Results: 19

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Part #

Optical Switches, Transmissive, Phototransistor Output PHOTOINTERRUPTER ULTRA MIN; HIGH RES

RPI-125
ROHM Semiconductor
1: £0.623
3,757In Stock

Mfr. Part No.
RPI-125

Mouser Part No
755-RPI-125

ROHM Semiconductor

Optical Switches, Transmissive, Phototransistor Output PHOTOINTERRUPTER ULTRA MIN; HIGH RES

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Datasheet

3,757In Stock

£0.623

£0.526

£0.502

£0.456

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Min.: 1
Mult.: 1

Optical Switches, Transmissive, Phototransistor Output PHOTOINTERRUPTER 3mm Gap 4.2x5.4mm

RPI-352
ROHM Semiconductor
1: £0.555
4,959In Stock

Mfr. Part No.
RPI-352

Mouser Part No
755-RPI-352

ROHM Semiconductor

Optical Switches, Transmissive, Phototransistor Output PHOTOINTERRUPTER 3mm Gap 4.2x5.4mm

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Datasheet

4,959In Stock

£0.555

£0.33

£0.32

£0.307

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Min.: 1
Mult.: 1

Optical Switches, Transmissive, Photo IC Output 0.3mm slit width photoIC

RPI-1133
ROHM Semiconductor
1: £0.986
5,926In Stock
NRND

Mfr. Part No.
RPI-1133

Mouser Part No
755-RPI-1133

NRND

ROHM Semiconductor

Optical Switches, Transmissive, Photo IC Output 0.3mm slit width photoIC

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Datasheet

5,926In Stock

£0.986

£0.73

£0.69

£0.672

Min.: 1
Mult.: 1

Optical Switches, Transmissive, Phototransistor Output 0.40mm slit width 0.7mA min., 5V

RPI-121
ROHM Semiconductor
1: £0.743
1,668In Stock
NRND

Mfr. Part No.
RPI-121

Mouser Part No
755-RPI-121

NRND

ROHM Semiconductor

Optical Switches, Transmissive, Phototransistor Output 0.40mm slit width 0.7mA min., 5V

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Datasheet

1,668In Stock

£0.743

£0.603

£0.517

£0.464

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Min.: 1
Mult.: 1

Optical Switches, Transmissive, Phototransistor Output Ultramin, SMD Type Photointerrupter

RPI-0128
ROHM Semiconductor
1: £0.511
5,527In Stock
60,000Expected 27/05/2026

Mfr. Part No.
RPI-0128

Mouser Part No
755-RPI-0128

ROHM Semiconductor

Optical Switches, Transmissive, Phototransistor Output Ultramin, SMD Type Photointerrupter

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Datasheet

5,527In Stock

60,000Expected 27/05/2026

Cut Tape

£0.511

£0.426

£0.40

£0.348

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Reel

£0.233

Min.: 1
Mult.: 1

Reel: 7,500

Optical Switches, Transmissive, Phototransistor Output Energysaving Photointerrupter

RPI-441C1E
ROHM Semiconductor
1: £0.503
5,246In Stock

Mfr. Part No.
RPI-441C1E

Mouser Part No
755-RPI-441C1E

ROHM Semiconductor

Optical Switches, Transmissive, Phototransistor Output Energysaving Photointerrupter

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Datasheet

5,246In Stock

£0.503

£0.432

£0.33

£0.312

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Min.: 1
Mult.: 1

Optical Switches, Transmissive, Phototransistor Output 50mA 5V 80mW Photointerrupter

RPI-0226
ROHM Semiconductor
1: £0.571
1,515In Stock
6,000On Order

Mfr. Part No.
RPI-0226

Mouser Part No
755-RPI-0226

ROHM Semiconductor

Optical Switches, Transmissive, Phototransistor Output 50mA 5V 80mW Photointerrupter

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Datasheet

1,515In Stock

6,000On Order

Cut Tape

£0.571

£0.479

£0.458

£0.411

Reel

£0.329

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Min.: 1
Mult.: 1

Reel: 2,000

Optical Switches, Transmissive, Phototransistor Output UltraSmall 50mA 30V 950nm Phtinterrupter

RPI-221
ROHM Semiconductor
1: £0.548
1,209In Stock

Mfr. Part No.
RPI-221

Mouser Part No
755-RPI-221

ROHM Semiconductor

Optical Switches, Transmissive, Phototransistor Output UltraSmall 50mA 30V 950nm Phtinterrupter

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Datasheet

1,209In Stock

£0.548

£0.463

£0.442

£0.40

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Min.: 1
Mult.: 1

Phototransistors PHOTO SENSOR DISTANCE 6mm

RPR-220
ROHM Semiconductor
1: £0.934
1,050In Stock
3,000Expected 26/03/2026

Mfr. Part No.
RPR-220

Mouser Part No
755-RPR-220

ROHM Semiconductor

Phototransistors PHOTO SENSOR DISTANCE 6mm

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Datasheet

1,050In Stock

3,000Expected 26/03/2026

£0.934

£0.796

£0.766

£0.693

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Min.: 1
Mult.: 1

Phototransistors PHOTO Visible Ray Cut Colored Pkg

RPT-34PB3F
ROHM Semiconductor
1: £0.54
1,967In Stock

Mfr. Part No.
RPT-34PB3F

Mouser Part No
755-RPT-34PB3F

ROHM Semiconductor

Phototransistors PHOTO Visible Ray Cut Colored Pkg

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Datasheet

1,967In Stock

£0.54

£0.375

£0.273

£0.228

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Min.: 1
Mult.: 1

Phototransistors PHOTO Visible Ray Cut Colored Pkg

RPT-37PB3F
ROHM Semiconductor
1: £0.443
3,105In Stock

Mfr. Part No.
RPT-37PB3F

Mouser Part No
755-RPT-37PB3F

ROHM Semiconductor

Phototransistors PHOTO Visible Ray Cut Colored Pkg

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Datasheet

3,105In Stock

£0.443

£0.333

£0.27

£0.249

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Min.: 1
Mult.: 1

Phototransistors PHOTO Visible Ray Cut Colored Pkg

RPT-38PB3F
ROHM Semiconductor
1: £0.691
1,327In Stock

Mfr. Part No.
RPT-38PB3F

Mouser Part No
755-RPT-38PB3F

ROHM Semiconductor

Phototransistors PHOTO Visible Ray Cut Colored Pkg

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Datasheet

1,327In Stock

£0.691

£0.48

£0.354

£0.298

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Min.: 1
Mult.: 1

Infrared Emitters IR EMITTER FOR REMOTE CONTROLLER

SIR-34ST3F
ROHM Semiconductor
1: £0.63
4,391In Stock

Mfr. Part No.
SIR-34ST3F

Mouser Part No
755-SIR-34ST3F

ROHM Semiconductor

Infrared Emitters IR EMITTER FOR REMOTE CONTROLLER

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Datasheet

4,391In Stock

£0.63

£0.436

£0.32

£0.26

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Min.: 1
Mult.: 1

Infrared Emitters IR LED HIGH OUTPUT

SIR-563ST3F
ROHM Semiconductor
1: £0.646
1,934In Stock

Mfr. Part No.
SIR-563ST3F

Mouser Part No
755-SIR-563ST3F

ROHM Semiconductor

Infrared Emitters IR LED HIGH OUTPUT

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Datasheet

1,934In Stock

£0.646

£0.45

£0.334

£0.282

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Min.: 1
Mult.: 1

Infrared Emitters IR LED FOR REMOTE CONTROLLER

SIR-56ST3F
ROHM Semiconductor
1: £0.63
711In Stock

Mfr. Part No.
SIR-56ST3F

Mouser Part No
755-SIR-56ST3F

ROHM Semiconductor

Infrared Emitters IR LED FOR REMOTE CONTROLLER

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Datasheet

711In Stock

£0.63

£0.433

£0.318

£0.265

£0.228

Min.: 1
Mult.: 1

Photo IC Sensors ALS w/prx 1.8V logic w/ IrLED driver

RPR-0521RS
ROHM Semiconductor
1: £1.45
7,490On Order

Mfr. Part No.
RPR-0521RS

Mouser Part No
755-RPR-0521RS

ROHM Semiconductor

Photo IC Sensors ALS w/prx 1.8V logic w/ IrLED driver

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Datasheet

7,490On Order

Cut Tape

£1.45

£0.995

£0.747

£0.64

Reel

£0.574

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MouseReel Available

Min.: 1
Mult.: 1

Reel: 2,500

Optical Switches, Reflective, Phototransistor Output PHTOINTRUPTR RFLCTVE PHTOTRNSISTR 4PIN

RPR-359F
ROHM Semiconductor
1: £2.44
180On Order

Mfr. Part No.
RPR-359F

Mouser Part No
755-RPR-359F

ROHM Semiconductor

Optical Switches, Reflective, Phototransistor Output PHTOINTRUPTR RFLCTVE PHTOTRNSISTR 4PIN

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Datasheet

180On Order

£2.44

£1.79

£1.31

£1.23

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Min.: 1
Mult.: 1

Optical Switches, Transmissive, Phototransistor Output 0.25mm slit width 0.18mA min 0.7V

RPI-122
ROHM Semiconductor
1: £1.56
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
RPI-122

Mouser Part No
755-RPI-122

ROHM Semiconductor

Optical Switches, Transmissive, Phototransistor Output 0.25mm slit width 0.18mA min 0.7V

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Datasheet

Non-Stocked Lead-Time 12 Weeks

£1.56

£1.12

£0.849

£0.727

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Min.: 1
Mult.: 1

Optical Switches, Transmissive, Phototransistor Output Ultramin, High Res Photointerrupter

RPI-130
ROHM Semiconductor
Non-Stocked Lead-Time 12 Weeks
NRND

Mfr. Part No.
RPI-130

Mouser Part No
755-RPI-130

NRND

ROHM Semiconductor

Optical Switches, Transmissive, Phototransistor Output Ultramin, High Res Photointerrupter

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

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Infrared LEDs & Optical Sensors

Types of Opto-electronics

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