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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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Select	Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (USD) Filter the results in the table by unit price based on your quantity.	Qty.	RoHS
	Phototransistors PHOTO Visible Ray Cut Colored Pkg RPT-37PB3F ROHM Semiconductor 1: $0.93 A tariff of 70% may be applied if shipping to the United States. 3,045In Stock	Mfr. Part # RPT-37PB3F Mouser Part # 755-RPT-37PB3F	ROHM Semiconductor	Phototransistors PHOTO Visible Ray Cut Colored Pkg Learn More about ROHM Semiconductor rohm optical sensors touchless switches	Datasheet	3,045In Stock	$0.93 $0.647 $0.385 $0.334 View $0.317 $0.305 $0.293 A tariff of 70% may be applied if shipping to the United States.	Min.: 1 Mult.: 1
	Photo IC Sensors ALS w/prx 1.8V logic w/ IrLED driver RPR-0521RS ROHM Semiconductor 1: $1.60 A tariff of 70% may be applied if shipping to the United States. 969In Stock 7,500Expected 10/16/2026	Mfr. Part # RPR-0521RS Mouser Part # 755-RPR-0521RS	ROHM Semiconductor	Photo IC Sensors ALS w/prx 1.8V logic w/ IrLED driver Learn More about ROHM Semiconductor rohm rpr 0521rs sensors	Datasheet	969In Stock 7,500Expected 10/16/2026	Cut Tape $1.60 $1.21 $1.01 $0.887 $0.838 Reel $0.802 MouseReel Available A tariff of 70% may be applied if shipping to the United States.	Min.: 1 Mult.: 1 : 2,500
	Phototransistors PHOTO Visible Ray Cut Colored Pkg RPT-34PB3F ROHM Semiconductor 1: $0.76 A tariff of 19% may be applied if shipping to the United States. 995In Stock 2,000Expected 12/10/2026	Mfr. Part # RPT-34PB3F Mouser Part # 755-RPT-34PB3F	ROHM Semiconductor	Phototransistors PHOTO Visible Ray Cut Colored Pkg Learn More about ROHM Semiconductor rohmopticalsensors	Datasheet	995In Stock 2,000Expected 12/10/2026	$0.76 $0.526 $0.383 $0.32 View $0.299 $0.254 $0.243 $0.234 $0.225 A tariff of 19% may be applied if shipping to the United States.	Min.: 1 Mult.: 1
	Phototransistors PHOTO Visible Ray Cut Colored Pkg RPT-38PB3F ROHM Semiconductor 1: $0.95 A tariff of 70% may be applied if shipping to the United States. 1,192In Stock	Mfr. Part # RPT-38PB3F Mouser Part # 755-RPT-38PB3F	ROHM Semiconductor	Phototransistors PHOTO Visible Ray Cut Colored Pkg Learn More about ROHM Semiconductor rohmopticalsensors	Datasheet	1,192In Stock	$0.95 $0.665 $0.49 $0.412 View $0.386 $0.358 $0.335 $0.316 $0.302 A tariff of 70% may be applied if shipping to the United States.	Min.: 1 Mult.: 1
	Infrared Emitters IR EMITTER FOR REMOTE CONTROLLER SIR-34ST3F ROHM Semiconductor 1: $0.91 A tariff of 120% may be applied if shipping to the United States. 3,642In Stock	Mfr. Part # SIR-34ST3F Mouser Part # 755-SIR-34ST3F	ROHM Semiconductor	Infrared Emitters IR EMITTER FOR REMOTE CONTROLLER Learn More about ROHM Semiconductor rohmopticalsensors	Datasheet	3,642In Stock	$0.91 $0.633 $0.46 $0.377 View $0.352 $0.335 $0.311 $0.29 $0.273 A tariff of 120% may be applied if shipping to the United States.	Min.: 1 Mult.: 1
	Infrared Emitters IR LED HIGH OUTPUT SIR-563ST3F ROHM Semiconductor 1: $0.94 A tariff of 120% may be applied if shipping to the United States. 1,013In Stock	Mfr. Part # SIR-563ST3F Mouser Part # 755-SIR-563ST3F	ROHM Semiconductor	Infrared Emitters IR LED HIGH OUTPUT Learn More about ROHM Semiconductor rohmopticalsensors	Datasheet	1,013In Stock	$0.94 $0.655 $0.48 $0.403 View $0.391 $0.356 $0.334 $0.317 $0.302 A tariff of 120% may be applied if shipping to the United States.	Min.: 1 Mult.: 1
	Infrared Emitters IR LED FOR REMOTE CONTROLLER SIR-56ST3F ROHM Semiconductor 1: $0.91 A tariff of 120% may be applied if shipping to the United States. 711In Stock	Mfr. Part # SIR-56ST3F Mouser Part # 755-SIR-56ST3F	ROHM Semiconductor	Infrared Emitters IR LED FOR REMOTE CONTROLLER Learn More about ROHM Semiconductor rohmopticalsensors	Datasheet	711In Stock	$0.91 $0.63 $0.458 $0.375 View $0.302 $0.294 $0.286 $0.275 $0.266 A tariff of 120% may be applied if shipping to the United States.	Min.: 1 Mult.: 1
	Optical Switches, Reflective, Phototransistor Output PHTOINTRUPTR RFLCTVE PHTOTRNSISTR 4PIN ROHM Semiconductor RPR-359F RPR-359F ROHM Semiconductor 1: $3.47 A tariff of 70% may be applied if shipping to the United States. 180Expected 9/21/2026	Mfr. Part # RPR-359F Mouser Part # 755-RPR-359F	ROHM Semiconductor	Optical Switches, Reflective, Phototransistor Output PHTOINTRUPTR RFLCTVE PHTOTRNSISTR 4PIN Learn More about ROHM Semiconductor rohmopticalsensors	Datasheet	180Expected 9/21/2026	$3.47 $2.53 $1.87 $1.64 A tariff of 70% may be applied if shipping to the United States.	Min.: 1 Mult.: 1