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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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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (PEN) Filter the results in the table by unit price based on your quantity.	Qty.
Transistor Output Optocouplers WL-OCPT 35V 5KVrms 10pF Dip 4 M-Type 140817141010 Wurth Elektronik 1: S/1.05 25In Stock	Mfr. Part # 140817141010 Mouser Part # 710-140817141010	Wurth Elektronik	Transistor Output Optocouplers WL-OCPT 35V 5KVrms 10pF Dip 4 M-Type Learn More about Wurth Elektronik optocoupler phototransistors	Datasheet	25In Stock	S/1.05 S/0.93 S/0.86 S/0.782 S/0.747	Min.: 1 Mult.: 1
Transistor Output Optocouplers WL-OCPT 80V 5KVrms 10pF Dip 4 SLM-Type 140816144300 Wurth Elektronik 1: S/1.48 3,000In Stock	Mfr. Part # 140816144300 Mouser Part # 710-140816144300	Wurth Elektronik	Transistor Output Optocouplers WL-OCPT 80V 5KVrms 10pF Dip 4 SLM-Type Learn More about Wurth Elektronik optocoupler phototransistors	Datasheet	3,000In Stock	Cut Tape S/1.48 S/1.34 S/1.19 S/1.05 Reel S/0.806 MouseReel Available	Min.: 1 Mult.: 1 : 1,500
Transistor Output Optocouplers WL-OCPT 80V 5KVrms 10pF Dip 4 SLM-Type 140816144400 Wurth Elektronik 1: S/1.48 326In Stock 1,500Expected 10/16/2026	Mfr. Part # 140816144400 Mouser Part # 710-140816144400	Wurth Elektronik	Transistor Output Optocouplers WL-OCPT 80V 5KVrms 10pF Dip 4 SLM-Type Learn More about Wurth Elektronik optocoupler phototransistors	Datasheet	326In Stock 1,500Expected 10/16/2026	Cut Tape S/1.48 S/1.34 S/1.19 S/1.05 Reel S/0.806 MouseReel Available	Min.: 1 Mult.: 1 : 1,500
Transistor Output Optocouplers WL-OCPT 80V 3.75KVrm 10pF SOP 4 V-Type 140356145000 Wurth Elektronik 1: S/1.52 5,481In Stock	Mfr. Part # 140356145000 Mouser Part # 710-140356145000	Wurth Elektronik	Transistor Output Optocouplers WL-OCPT 80V 3.75KVrm 10pF SOP 4 V-Type Learn More about Wurth Elektronik optocoupler phototransistors	Datasheet	5,481In Stock	Cut Tape S/1.52 S/1.34 S/1.23 S/1.12 S/1.07 Reel S/1.02 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
Transistor Output Optocouplers WL-OCPT 80V 3.75KVrm 10pF SOP 4 V-Type 140356145100 Wurth Elektronik 1: S/1.52 4,895In Stock	Mfr. Part # 140356145100 Mouser Part # 710-140356145100	Wurth Elektronik	Transistor Output Optocouplers WL-OCPT 80V 3.75KVrm 10pF SOP 4 V-Type Learn More about Wurth Elektronik optocoupler phototransistors	Datasheet	4,895In Stock	Cut Tape S/1.52 S/1.34 S/1.23 S/1.12 S/1.07 Reel S/1.02 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
Transistor Output Optocouplers WL-OCPT 80V 5KVrms 10pF Dip 4 SL-Type 140816143300 Wurth Elektronik 1: S/1.48 5,637In Stock	Mfr. Part # 140816143300 Mouser Part # 710-140816143300	Wurth Elektronik	Transistor Output Optocouplers WL-OCPT 80V 5KVrms 10pF Dip 4 SL-Type Learn More about Wurth Elektronik optocoupler phototransistors	Datasheet	5,637In Stock	Cut Tape S/1.48 S/1.34 S/1.19 S/1.05 Reel S/0.802 MouseReel Available	Min.: 1 Mult.: 1 : 1,500
Transistor Output Optocouplers WL-OCPT 20CTR MIN 400CTR MAX 80V 3750VRMS Phototransistor 140214247000 Wurth Elektronik 1: S/1.95 5,947In Stock New Product	Mfr. Part # 140214247000 Mouser Part # 710-140214247000 New Product	Wurth Elektronik	Transistor Output Optocouplers WL-OCPT 20CTR MIN 400CTR MAX 80V 3750VRMS Phototransistor Learn More about Wurth Elektronik optocoupler phototransistors	Datasheet	5,947In Stock	Cut Tape S/1.95 S/1.36 S/0.895 S/0.779 S/0.701 Reel S/0.592 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
Transistor Output Optocouplers WL-OCPT 50CTR MIN 150CTR MAX 80V 3750VRMS Phototransistor 140214247100 Wurth Elektronik 1: S/1.95 5,705In Stock New Product	Mfr. Part # 140214247100 Mouser Part # 710-140214247100 New Product	Wurth Elektronik	Transistor Output Optocouplers WL-OCPT 50CTR MIN 150CTR MAX 80V 3750VRMS Phototransistor Learn More about Wurth Elektronik optocoupler phototransistors	Datasheet	5,705In Stock	Cut Tape S/1.95 S/1.36 S/0.895 S/0.779 S/0.701 Reel S/0.592 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
Transistor Output Optocouplers WL-OCPT 80CTR MIN 400CTR MAX 80V 3750VRMS Phototransistor 140214247200 Wurth Elektronik 1: S/1.95 5,649In Stock New Product	Mfr. Part # 140214247200 Mouser Part # 710-140214247200 New Product	Wurth Elektronik	Transistor Output Optocouplers WL-OCPT 80CTR MIN 400CTR MAX 80V 3750VRMS Phototransistor Learn More about Wurth Elektronik optocoupler phototransistors	Datasheet	5,649In Stock	Cut Tape S/1.95 S/1.36 S/0.895 S/0.779 S/0.701 Reel S/0.592 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
Transistor Output Optocouplers WL-OCPT 50CTR MIN 600CTR MAX 80V 3750VRMS Phototransistor 140217147000 Wurth Elektronik 1: S/1.95 5,727In Stock New Product	Mfr. Part # 140217147000 Mouser Part # 710-140217147000 New Product	Wurth Elektronik	Transistor Output Optocouplers WL-OCPT 50CTR MIN 600CTR MAX 80V 3750VRMS Phototransistor Learn More about Wurth Elektronik optocoupler phototransistors	Datasheet	5,727In Stock	Cut Tape S/1.95 S/1.36 S/0.895 S/0.779 S/0.701 Reel S/0.592 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
Transistor Output Optocouplers WL-OCPT 80CTR MIN 160CTR MAX 80V 3750VRMS Phototransistor 140217147100 Wurth Elektronik 1: S/1.95 5,545In Stock New Product	Mfr. Part # 140217147100 Mouser Part # 710-140217147100 New Product	Wurth Elektronik	Transistor Output Optocouplers WL-OCPT 80CTR MIN 160CTR MAX 80V 3750VRMS Phototransistor Learn More about Wurth Elektronik optocoupler phototransistors	Datasheet	5,545In Stock	Cut Tape S/1.95 S/1.36 S/0.895 S/0.779 S/0.701 Reel S/0.592 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
Transistor Output Optocouplers WL-OCPT 130CTR MIN 260CTR MAX 80V 3750VRMS Phototransistor 140217147200 Wurth Elektronik 1: S/1.95 5,841In Stock New Product	Mfr. Part # 140217147200 Mouser Part # 710-140217147200 New Product	Wurth Elektronik	Transistor Output Optocouplers WL-OCPT 130CTR MIN 260CTR MAX 80V 3750VRMS Phototransistor Learn More about Wurth Elektronik optocoupler phototransistors	Datasheet	5,841In Stock	Cut Tape S/1.95 S/1.36 S/0.895 S/0.779 S/0.701 Reel S/0.592 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
Transistor Output Optocouplers WL-OCPT 200CTR MIN 400CTR MAX 80V 3750VRMS Phototransistor 140217147300 Wurth Elektronik 1: S/1.95 5,980In Stock New Product	Mfr. Part # 140217147300 Mouser Part # 710-140217147300 New Product	Wurth Elektronik	Transistor Output Optocouplers WL-OCPT 200CTR MIN 400CTR MAX 80V 3750VRMS Phototransistor Learn More about Wurth Elektronik optocoupler phototransistors	Datasheet	5,980In Stock	Cut Tape S/1.95 S/1.36 S/0.895 S/0.779 S/0.701 Reel S/0.592 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
Transistor Output Optocouplers WL-OCPT 300CTR MIN 600CTR MAX 80V 3750VRMS Phototransistor 140217147400 Wurth Elektronik 1: S/1.95 5,626In Stock New Product	Mfr. Part # 140217147400 Mouser Part # 710-140217147400 New Product	Wurth Elektronik	Transistor Output Optocouplers WL-OCPT 300CTR MIN 600CTR MAX 80V 3750VRMS Phototransistor Learn More about Wurth Elektronik optocoupler phototransistors	Datasheet	5,626In Stock	Cut Tape S/1.95 S/1.36 S/0.895 S/0.779 S/0.701 Reel S/0.592 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
Single Color LEDs WL-SMTW Wtrclr TopVw Grn 3.2V 50mA 520nm 150141GS73130 Wurth Elektronik 1: S/1.56 11,743In Stock	Mfr. Part # 150141GS73130 Mouser Part # 710-150141GS73130	Wurth Elektronik	Single Color LEDs WL-SMTW Wtrclr TopVw Grn 3.2V 50mA 520nm Learn More about Wurth Elektronik optocoupler phototransistors	Datasheet	11,743In Stock	Cut Tape S/1.56 S/1.38 S/1.27 S/1.16 S/1.10 Reel S/1.05 MouseReel Available	Min.: 1 Mult.: 1 : 2,000
Transistor Output Optocouplers WL-OCPT DIP8 S VCE=80V VISO=5000VRM 140827182000 Wurth Elektronik 1: S/3.54 972In Stock	Mfr. Part # 140827182000 Mouser Part # 710-140827182000	Wurth Elektronik	Transistor Output Optocouplers WL-OCPT DIP8 S VCE=80V VISO=5000VRM Learn More about Wurth Elektronik optocoupler phototransistors	Datasheet	972In Stock	Cut Tape S/3.54 S/3.09 S/2.67 S/2.34 Reel S/1.92 MouseReel Available	Min.: 1 Mult.: 1 : 1,000
Transistor Output Optocouplers WL-OCPT DIP8 SL VCE=80V VISO=5000VRM 140827183000 Wurth Elektronik 1: S/3.54 1,092In Stock	Mfr. Part # 140827183000 Mouser Part # 710-140827183000	Wurth Elektronik	Transistor Output Optocouplers WL-OCPT DIP8 SL VCE=80V VISO=5000VRM Learn More about Wurth Elektronik optocoupler phototransistors	Datasheet	1,092In Stock	Cut Tape S/3.54 S/3.09 S/2.67 S/2.34 Reel S/1.92 MouseReel Available	Min.: 1 Mult.: 1 : 1,000
Transistor Output Optocouplers WL-OCPT 35V 5KVrms 10pF LSO 4 V-Type 140100146000 Wurth Elektronik 1: S/1.13 42,497In Stock	Mfr. Part # 140100146000 Mouser Part # 710-140100146000	Wurth Elektronik	Transistor Output Optocouplers WL-OCPT 35V 5KVrms 10pF LSO 4 V-Type Learn More about Wurth Elektronik optocoupler phototransistors	Datasheet	42,497In Stock	Cut Tape S/1.13 S/0.981 S/0.907 S/0.821 S/0.786 Reel S/0.747 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
Transistor Output Optocouplers WL-OCPT 35V 3.75KVrm 10pF SOP 4 V-Type 140354245000 Wurth Elektronik 1: S/1.52 10,269In Stock	Mfr. Part # 140354245000 Mouser Part # 710-140354245000	Wurth Elektronik	Transistor Output Optocouplers WL-OCPT 35V 3.75KVrm 10pF SOP 4 V-Type Learn More about Wurth Elektronik optocoupler phototransistors	Datasheet	10,269In Stock	Cut Tape S/1.52 S/1.34 S/1.23 S/1.12 S/1.07 Reel S/1.02 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
Single Color LEDs WL-SMTW Wtrclr TopVw RED 2.4V 50mA 620nm 150141RS73130 Wurth Elektronik 1: S/1.56 7,053In Stock 6,000Expected 10/23/2026	Mfr. Part # 150141RS73130 Mouser Part # 710-150141RS73130	Wurth Elektronik	Single Color LEDs WL-SMTW Wtrclr TopVw RED 2.4V 50mA 620nm Learn More about Wurth Elektronik optocoupler phototransistors	Datasheet	7,053In Stock 6,000Expected 10/23/2026	Cut Tape S/1.56 S/1.38 S/1.27 S/1.16 S/1.10 Reel S/1.05 MouseReel Available	Min.: 1 Mult.: 1 : 2,000
Single Color LEDs WL-SMTW Wtrclr TopVw YEl 2.4V 50mA 620nm 150141YS73130 Wurth Elektronik 1: S/1.56 7,443In Stock	Mfr. Part # 150141YS73130 Mouser Part # 710-150141YS73130	Wurth Elektronik	Single Color LEDs WL-SMTW Wtrclr TopVw YEl 2.4V 50mA 620nm Learn More about Wurth Elektronik optocoupler phototransistors	Datasheet	7,443In Stock	Cut Tape S/1.56 S/1.38 S/1.27 S/1.16 S/1.10 Reel S/1.05 MouseReel Available	Min.: 1 Mult.: 1 : 2,000
Single Color LEDs WL-SUTW Wtrclr TopVw 395nm 140mW 3.4V 120 153283397A212 Wurth Elektronik 1: S/2.49 5,384In Stock	Mfr. Part # 153283397A212 Mouser Part # 710-153283397A212	Wurth Elektronik	Single Color LEDs WL-SUTW Wtrclr TopVw 395nm 140mW 3.4V 120 Learn More about Wurth Elektronik optocoupler phototransistors	Datasheet	5,384In Stock	Cut Tape S/2.49 S/2.26 S/2.06 S/1.79 View Reel S/1.52 S/1.60 S/1.52 S/1.52 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
Transistor Output Optocouplers WL-OCPT 35V 5KVrms 10pF LSO 4 V-Type 140105146000 Wurth Elektronik 1: S/1.13 1,359In Stock 3,000Expected 11/13/2026	Mfr. Part # 140105146000 Mouser Part # 710-140105146000	Wurth Elektronik	Transistor Output Optocouplers WL-OCPT 35V 5KVrms 10pF LSO 4 V-Type Learn More about Wurth Elektronik optocoupler phototransistors	Datasheet	1,359In Stock 3,000Expected 11/13/2026	Cut Tape S/1.13 S/0.981 S/0.907 S/0.821 S/0.786 Reel S/0.747 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
Transistor Output Optocouplers WL-OCPT 35V 5KVrms 10pF LSO 4 V-Type 140106146000 Wurth Elektronik 1: S/1.13 4,546In Stock	Mfr. Part # 140106146000 Mouser Part # 710-140106146000	Wurth Elektronik	Transistor Output Optocouplers WL-OCPT 35V 5KVrms 10pF LSO 4 V-Type Learn More about Wurth Elektronik optocoupler phototransistors	Datasheet	4,546In Stock	Cut Tape S/1.13 S/0.981 S/0.907 S/0.821 S/0.786 Reel S/0.747 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
Transistor Output Optocouplers WL-OCPT 35V 5KVrms 10pF LSO 4 V-Type 140107146000 Wurth Elektronik 1: S/1.13 3,121In Stock	Mfr. Part # 140107146000 Mouser Part # 710-140107146000	Wurth Elektronik	Transistor Output Optocouplers WL-OCPT 35V 5KVrms 10pF LSO 4 V-Type Learn More about Wurth Elektronik optocoupler phototransistors	Datasheet	3,121In Stock	Cut Tape S/1.13 S/0.981 S/0.907 S/0.821 S/0.786 Reel S/0.747 MouseReel Available	Min.: 1 Mult.: 1 : 3,000

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