Optocoupler Phototransistors

Würth Elektronik Optocoupler Phototransistors feature 5kV isolation voltage, fast switching time, and good stability of inner isolation. The WL-OCPT series provides an IR LED and phototransistor in one package. These modules offer a stable current transfer ratio (CTR) in a full operating temperature range with different CTR binnings available. Würth Elektronik Optocoupler Phototransistors are ideal for power supplies, office equipment, instrumental applications, computers, and microprocessors.

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Description Datasheet Availability Pricing (TWD) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Product
Mounting Style
Package / Case
Wavelength/Color Temperature
Luminous Intensity
Luminous Flux/Radiant Flux
If - Forward Current
Vf - Forward Voltage
Power Rating
Lens Color
Lens Dimensions
Lens Shape
Lens Transparency
Series
Packaging
Wurth Elektronik Single Color LEDs WL-SUTW Wtrclr TopVw 385nm 90mW 3.4V 120D
Datasheet
2,693In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 4,000

UV LEDs (Ultraviolet) SMD/SMT 1411 (3528 metric) 385 nm 90 mW 100 mA 3.4 V 400 mW Water Clear Square WL-SUTW Reel, Cut Tape, MouseReel
Wurth Elektronik Single Color LEDs WL-SMTW Wtrclr TopVw Grn 3.2V 50mA 520nm
Datasheet
11,743In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2,000

Green LEDs SMD/SMT PLCC-4 515 nm 5 cd 50 mA 3.2 V 360 mW White 2.4 mm Round Flat Water Clear WL-SMTW Reel, Cut Tape, MouseReel
Wurth Elektronik Single Color LEDs WL-SMTW Wtrclr TopVw Blu 3.2V 50mA 470nm
Datasheet
2,319In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2,000

Blue LEDs SMD/SMT PLCC-4 465 nm 1 cd 50 mA 3.2 V 350 mW White 2.4 mm Round Water Clear WL-SMTW Reel, Cut Tape, MouseReel
Wurth Elektronik Single Color LEDs WL-SMTW Wtrclr TopVw Ble 3.2V 50mA 470nm
Datasheet
114In Stock
4,000Expected 8/28/2026
MouseReel Available
Min.: 1
Mult.: 1
: 2,000

Blue LEDs SMD/SMT PLCC-4 465 nm 1 cd 50 mA 3.2 V 240 mW White 2.4 mm Round Water Clear WL-SMTW Reel, Cut Tape, MouseReel
Wurth Elektronik Single Color LEDs WL-SMTW Wtrclr TopVw Grn 3.2V 50mA 520nm
Datasheet
2,965In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2,000

Green LEDs SMD/SMT PLCC-4 515 nm 5 cd 50 mA 3.2 V 240 mW White 2.4 mm Round Flat Water Clear WL-SMTW Reel, Cut Tape, MouseReel
Wurth Elektronik Single Color LEDs WL-SMTW Wtrclr TopVw RED 2.4V 50mA 620nm
Datasheet
2,672In Stock
6,000Expected 8/21/2026
MouseReel Available
Min.: 1
Mult.: 1
: 2,000

Red LEDs SMD/SMT PLCC-4 630 nm 3 cd 50 mA 2.4 V 280 mW White 2.4 mm Round Flat Water Clear WL-SMTW Reel, Cut Tape, MouseReel
Wurth Elektronik Single Color LEDs WL-SMTW Wtrclr TopVw RED 2.4V 50mA 620nm
Datasheet
3,573In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2,000

Red LEDs SMD/SMT PLCC-4 630 nm 3 cd 50 mA 2.4 V 240 mW White 2.4 mm Round Flat Water Clear WL-SMTW Reel, Cut Tape, MouseReel
Wurth Elektronik Single Color LEDs WL-SMTW Wtrclr TopVw YEl 2.4V 50mA 620nm
Datasheet
1,443In Stock
2,000Expected 8/28/2026
MouseReel Available
Min.: 1
Mult.: 1
: 2,000

Yellow LEDs SMD/SMT PLCC-4 592 nm 2 cd 50 mA 2.4 V 280 mW White 2.4 mm Round Flat Water Clear WL-SMTW Reel, Cut Tape, MouseReel
Wurth Elektronik Single Color LEDs WL-SMTW Wtrclr TopVw YEl 2.4V 50mA 590nm
Datasheet
1,314In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2,000

Yellow LEDs SMD/SMT PLCC-4 592 nm 2 cd 50 mA 2.4 V 240 mW White 2.4 mm Round Flat Water Clear WL-SMTW Reel, Cut Tape, MouseReel
Wurth Elektronik Single Color LEDs WL-SUTW Wtrclr TopVw 365nm 50mW 3.6V 120D
Datasheet
7,006In Stock
8,000Expected 9/4/2026
MouseReel Available
Min.: 1
Mult.: 1
: 4,000

UV LEDs (Ultraviolet) SMD/SMT SMD-2 365 nm 90 mW 60 mA 3.6 V 240 mW Colorless 3.5 mm x 2.8 mm Rectangular Water Clear WL-SUTW Reel, Cut Tape, MouseReel
Wurth Elektronik Single Color LEDs WL-SUTW Wtrclr TopVw 395nm 140mW 3.4V 120
Datasheet
1,751In Stock
4,000Expected 8/21/2026
MouseReel Available
Min.: 1
Mult.: 1
: 4,000

UV LEDs (Ultraviolet) SMD/SMT 1411 (3528 metric) 395 nm 140 mW 150 mA 3.4 V 600 mW Water Clear Square WL-SUTW Reel, Cut Tape, MouseReel
Wurth Elektronik Single Color LEDs WL-SUTW Wtrclr TopVw 405nm 140mW 3.4V 120
Datasheet
3,704In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 4,000

UV LEDs (Ultraviolet) SMD/SMT 1411 (3528 metric) 405 nm 140 mW 150 mA 3.4 V 600 mW Water Clear Square WL-SUTW Reel, Cut Tape, MouseReel