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. 

Results: 8
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Description Datasheet Availability Pricing (SGD) Filter the results in the table by unit price based on your quantity.
Qty. RoHS Product Type
Sensing Method
Slot Width
Sensing Distance
ROHM Semiconductor Optical Switches, Transmissive, Phototransistor Output Energysaving Photointerrupter
Datasheet
4,762In Stock
Min.: 1
Mult.: 1

Optical Switches, Transmissive, Phototransistor Output Transmissive, Slotted 4 mm
ROHM Semiconductor Optical Switches, Transmissive, Phototransistor Output Ultramin, SMD Type Photointerrupter
Datasheet
59,300In Stock
Min.: 1
Mult.: 1
: 7,500

Optical Switches, Transmissive, Phototransistor Output Transmissive, Slotted 1.2 mm
ROHM Semiconductor Optical Switches, Transmissive, Phototransistor Output 50mA 5V 80mW Photointerrupter
Datasheet
8,700In Stock
6,000Expected 11/8/2026
Min.: 1
Mult.: 1
: 2,000

Optical Switches, Transmissive, Phototransistor Output Transmissive, Slotted 2 mm
ROHM Semiconductor Optical Switches, Transmissive, Phototransistor Output PHOTOINTERRUPTER ULTRA MIN; HIGH RES
Datasheet
1,732In Stock
Min.: 1
Mult.: 1

Optical Switches, Transmissive, Phototransistor Output Transmissive, Slotted 1.2 mm
ROHM Semiconductor Optical Switches, Transmissive, Phototransistor Output UltraSmall 50mA 30V 950nm Phtinterrupter
Datasheet
360In Stock
2,000Expected 20/7/2026
Min.: 1
Mult.: 1

Optical Switches, Transmissive, Phototransistor Output Transmissive, Slotted 2 mm
ROHM Semiconductor Optical Switches, Transmissive, Phototransistor Output PHOTOINTERRUPTER 3mm Gap 4.2x5.4mm
Datasheet
14In Stock
4,000On Order
Min.: 1
Mult.: 1

Optical Switches, Transmissive, Phototransistor Output Transmissive, Slotted 3 mm
ROHM Semiconductor RPR-359F
ROHM Semiconductor Optical Switches, Reflective, Phototransistor Output PHTOINTRUPTR RFLCTVE PHTOTRNSISTR 4PIN
Datasheet
180Expected 4/8/2026
Min.: 1
Mult.: 1

Optical Switches, Reflective, Phototransistor Output Reflective 3.5 mm
ROHM Semiconductor Optical Switches, Transmissive, Phototransistor Output 0.25mm slit width 0.18mA min 0.7V
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 2,000
Mult.: 2,000

Optical Switches, Transmissive, Phototransistor Output Transmissive, Slotted 0.8 mm