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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Part #

Optical Switches, Transmissive, Phototransistor Output Energysaving Photointerrupter

RPI-441C1E
ROHM Semiconductor
1: £0.526
4,743In 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

4,743In Stock

£0.526

£0.441

£0.376

£0.338

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Min.: 1
Mult.: 1

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

RPI-0128
ROHM Semiconductor
1: £0.511
59,300In Stock

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

59,300In Stock

Cut Tape

£0.511

£0.426

£0.402

£0.351

Reel

£0.28

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Min.: 1
Mult.: 1

: 7,500

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

RPI-0226
ROHM Semiconductor
1: £0.593
5,476In Stock
6,000Expected 29/09/2026

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

5,476In Stock

6,000Expected 29/09/2026

Cut Tape

£0.593

£0.499

£0.477

£0.411

Reel

£0.408

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Min.: 1
Mult.: 1

: 2,000

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

RPR-0521RS
ROHM Semiconductor
1: £0.89
2,109In Stock

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

2,109In Stock

Cut Tape

£0.89

£0.766

£0.726

£0.65

Reel

£0.608

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MouseReel Available

Min.: 1
Mult.: 1

: 2,500

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

RPI-125
ROHM Semiconductor
1: £0.653
1,732In 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

1,732In Stock

£0.653

£0.553

£0.528

£0.464

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Min.: 1
Mult.: 1

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

RPI-221
ROHM Semiconductor
1: £0.578
360In Stock
2,000Expected 20/07/2026

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

360In Stock

2,000Expected 20/07/2026

£0.578

£0.485

£0.464

£0.42

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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
14In Stock
4,000On Order

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

14In Stock

4,000On Order

£0.555

£0.468

£0.414

£0.372

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Min.: 1
Mult.: 1

Phototransistors PHOTO SENSOR DISTANCE 6mm

RPR-220
ROHM Semiconductor
1: £0.986
582In Stock
3,000Expected 06/08/2026

Mfr. Part No.
RPR-220

Mouser Part No
755-RPR-220

ROHM Semiconductor

Phototransistors PHOTO SENSOR DISTANCE 6mm

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Datasheet

582In Stock

3,000Expected 06/08/2026

£0.986

£0.826

£0.713

£0.643

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Min.: 1
Mult.: 1

Phototransistors PHOTO Visible Ray Cut Colored Pkg

RPT-34PB3F
ROHM Semiconductor
1: £0.555
796In Stock
2,000Expected 14/07/2026

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

796In Stock

2,000Expected 14/07/2026

£0.555

£0.383

£0.28

£0.233

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Min.: 1
Mult.: 1

Phototransistors PHOTO Visible Ray Cut Colored Pkg

RPT-37PB3F
ROHM Semiconductor
1: £0.691
3,045In 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

3,045In Stock

£0.691

£0.476

£0.35

£0.293

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Min.: 1
Mult.: 1

Phototransistors PHOTO Visible Ray Cut Colored Pkg

RPT-38PB3F
ROHM Semiconductor
1: £0.705
1,222In 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

1,222In Stock

£0.705

£0.49

£0.361

£0.303

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Min.: 1
Mult.: 1

Infrared Emitters IR EMITTER FOR REMOTE CONTROLLER

SIR-34ST3F
ROHM Semiconductor
1: £0.638
4,153In 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

4,153In Stock

£0.638

£0.441

£0.322

£0.269

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Min.: 1
Mult.: 1

Infrared Emitters IR LED HIGH OUTPUT

SIR-563ST3F
ROHM Semiconductor
1: £0.691
1,784In 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

1,784In Stock

£0.691

£0.472

£0.333

£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

£0.437

£0.32

£0.267

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Min.: 1
Mult.: 1

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

RPR-359F
ROHM Semiconductor
1: £2.44
180Expected 18/08/2026

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

180Expected 18/08/2026

£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
2,000: £0.656
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

£0.656

£0.636

£0.616

Min.: 2,000
Mult.: 2,000

Infrared LEDs & Optical Sensors

Types of Opto-electronics

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