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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 (CLP) 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: $296 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	$296 $262 $243 $221 $211	Min.: 1 Mult.: 1
Transistor Output Optocouplers WL-OCPT 80V 5KVrms 10pF Dip 4 SLM-Type 140816144400 Wurth Elektronik 1: $417 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 $417 $379 $337 $295 Reel $227 MouseReel Available	Min.: 1 Mult.: 1 : 1.500
Transistor Output Optocouplers WL-OCPT 80V 5KVrms 10pF Dip 4 SL-Type 140816143300 Wurth Elektronik 1: $417 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 $417 $379 $337 $295 Reel $226 MouseReel Available	Min.: 1 Mult.: 1 : 1.500
Transistor Output Optocouplers WL-OCPT 80V 3.75KVrm 10pF SOP 4 V-Type 140356145100 Wurth Elektronik 1: $428 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 $428 $378 $347 $316 $303 Reel $287 MouseReel Available	Min.: 1 Mult.: 1 : 3.000
Transistor Output Optocouplers WL-OCPT 80V 3.75KVrm 10pF SOP 4 V-Type 140356145000 Wurth Elektronik 1: $428 5.483In 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	5.483In Stock	Cut Tape $428 $378 $347 $316 $303 Reel $287 MouseReel Available	Min.: 1 Mult.: 1 : 3.000
Transistor Output Optocouplers WL-OCPT 20CTR MIN 400CTR MAX 80V 3750VRMS Phototransistor 140214247000 Wurth Elektronik 1: $549 5.953In 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	5.953In Stock	Cut Tape $549 $384 $253 $220 $198 Reel $167 MouseReel Available	Min.: 1 Mult.: 1 : 3.000
Transistor Output Optocouplers WL-OCPT 50CTR MIN 150CTR MAX 80V 3750VRMS Phototransistor 140214247100 Wurth Elektronik 1: $549 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 $549 $384 $253 $220 $198 Reel $167 MouseReel Available	Min.: 1 Mult.: 1 : 3.000
Transistor Output Optocouplers WL-OCPT 80CTR MIN 400CTR MAX 80V 3750VRMS Phototransistor 140214247200 Wurth Elektronik 1: $549 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 $549 $384 $253 $220 $198 Reel $167 MouseReel Available	Min.: 1 Mult.: 1 : 3.000
Transistor Output Optocouplers WL-OCPT 50CTR MIN 600CTR MAX 80V 3750VRMS Phototransistor 140217147000 Wurth Elektronik 1: $549 5.741In 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	5.741In Stock	Cut Tape $549 $384 $253 $220 $198 Reel $167 MouseReel Available	Min.: 1 Mult.: 1 : 3.000
Transistor Output Optocouplers WL-OCPT 80CTR MIN 160CTR MAX 80V 3750VRMS Phototransistor 140217147100 Wurth Elektronik 1: $549 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 $549 $384 $253 $220 $198 Reel $167 MouseReel Available	Min.: 1 Mult.: 1 : 3.000
Transistor Output Optocouplers WL-OCPT 130CTR MIN 260CTR MAX 80V 3750VRMS Phototransistor 140217147200 Wurth Elektronik 1: $549 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 $549 $384 $253 $220 $198 Reel $167 MouseReel Available	Min.: 1 Mult.: 1 : 3.000
Transistor Output Optocouplers WL-OCPT 200CTR MIN 400CTR MAX 80V 3750VRMS Phototransistor 140217147300 Wurth Elektronik 1: $549 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 $549 $384 $253 $220 $198 Reel $167 MouseReel Available	Min.: 1 Mult.: 1 : 3.000
Transistor Output Optocouplers WL-OCPT 300CTR MIN 600CTR MAX 80V 3750VRMS Phototransistor 140217147400 Wurth Elektronik 1: $549 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 $549 $384 $253 $220 $198 Reel $167 MouseReel Available	Min.: 1 Mult.: 1 : 3.000
Single Color LEDs WL-SMTW Wtrclr TopVw Grn 3.2V 50mA 520nm 150141GS73130 Wurth Elektronik 1: $439 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 $439 $390 $359 $328 $311 Reel $295 MouseReel Available	Min.: 1 Mult.: 1 : 2.000
Single Color LEDs WL-SMTW Wtrclr TopVw RED 2.4V 50mA 620nm 150141RS73130 Wurth Elektronik 1: $439 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 $439 $390 $359 $328 $311 Reel $295 MouseReel Available	Min.: 1 Mult.: 1 : 2.000
Single Color LEDs WL-SUTW Wtrclr TopVw 395nm 140mW 3.4V 120 153283397A212 Wurth Elektronik 1: $703 5.394In 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	5.394In Stock	Cut Tape $703 $637 $582 $505 View Reel $428 $450 $428 $428 MouseReel Available	Min.: 1 Mult.: 1 : 4.000
Transistor Output Optocouplers WL-OCPT DIP8 S VCE=80V VISO=5000VRM 140827182000 Wurth Elektronik 1: $999 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 $999 $873 $753 $661 Reel $541 MouseReel Available	Min.: 1 Mult.: 1 : 1.000
Transistor Output Optocouplers WL-OCPT DIP8 SL VCE=80V VISO=5000VRM 140827183000 Wurth Elektronik 1: $999 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 $999 $873 $753 $661 Reel $541 MouseReel Available	Min.: 1 Mult.: 1 : 1.000
Transistor Output Optocouplers WL-OCPT 35V 5KVrms 10pF LSO 4 V-Type 140100146000 Wurth Elektronik 1: $318 39.797In Stock 2.700Expected 10/9/2026	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	39.797In Stock 2.700Expected 10/9/2026	Cut Tape $318 $277 $256 $232 $222 Reel $211 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: $428 6.269In Stock 6.000Expected 10/26/2026	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	6.269In Stock 6.000Expected 10/26/2026	Cut Tape $428 $378 $347 $316 $303 Reel $287 MouseReel Available	Min.: 1 Mult.: 1 : 3.000
Single Color LEDs WL-SMTW Wtrclr TopVw Blu 3.2V 50mA 470nm 150141BS73130 Wurth Elektronik 1: $439 2.319In Stock	Mfr. Part # 150141BS73130 Mouser Part # 710-150141BS73130	Wurth Elektronik	Single Color LEDs WL-SMTW Wtrclr TopVw Blu 3.2V 50mA 470nm Learn More about Wurth Elektronik optocoupler phototransistors	Datasheet	2.319In Stock	Cut Tape $439 $390 $359 $328 $311 Reel $295 MouseReel Available	Min.: 1 Mult.: 1 : 2.000
Single Color LEDs WL-SMTW Wtrclr TopVw Ble 3.2V 50mA 470nm 150141BS73140 Wurth Elektronik 1: $439 4.111In Stock	Mfr. Part # 150141BS73140 Mouser Part # 710-150141BS73140	Wurth Elektronik	Single Color LEDs WL-SMTW Wtrclr TopVw Ble 3.2V 50mA 470nm Learn More about Wurth Elektronik optocoupler phototransistors	Datasheet	4.111In Stock	Cut Tape $439 $390 $359 $328 $311 Reel $295 MouseReel Available	Min.: 1 Mult.: 1 : 2.000
Single Color LEDs WL-SMTW Wtrclr TopVw Grn 3.2V 50mA 520nm 150141GS73140 Wurth Elektronik 1: $439 2.455In Stock 2.000Expected 10/23/2026	Mfr. Part # 150141GS73140 Mouser Part # 710-150141GS73140	Wurth Elektronik	Single Color LEDs WL-SMTW Wtrclr TopVw Grn 3.2V 50mA 520nm Learn More about Wurth Elektronik optocoupler phototransistors	Datasheet	2.455In Stock 2.000Expected 10/23/2026	Cut Tape $439 $390 $359 $328 $311 Reel $295 MouseReel Available	Min.: 1 Mult.: 1 : 2.000
Single Color LEDs WL-SMTW Wtrclr TopVw RED 2.4V 50mA 620nm 150141RS73140 Wurth Elektronik 1: $439 2.563In Stock	Mfr. Part # 150141RS73140 Mouser Part # 710-150141RS73140	Wurth Elektronik	Single Color LEDs WL-SMTW Wtrclr TopVw RED 2.4V 50mA 620nm Learn More about Wurth Elektronik optocoupler phototransistors	Datasheet	2.563In Stock	Cut Tape $439 $390 $359 $328 $311 Reel $295 MouseReel Available	Min.: 1 Mult.: 1 : 2.000
Single Color LEDs WL-SMTW Wtrclr TopVw YEl 2.4V 50mA 620nm 150141YS73130 Wurth Elektronik 1: $439 3.443In Stock 4.000Expected 10/26/2026	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	3.443In Stock 4.000Expected 10/26/2026	Cut Tape $439 $390 $359 $328 $311 Reel $295 MouseReel Available	Min.: 1 Mult.: 1 : 2.000

Optocoupler Phototransistors

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