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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 (CHF) Filter the results in the table by unit price based on your quantity.	Qty.
Transistor Output Optocouplers WL-OCPT 80V 5KVrms 10pF Dip 4 SLM-Type 140816144400 Wurth Elektronik 1: 0.306 CHF 301In Stock 1 500Expected 22/10/2026	Mfr. Part No. 140816144400 Mouser Part No 710-140816144400	Wurth Elektronik	Transistor Output Optocouplers WL-OCPT 80V 5KVrms 10pF Dip 4 SLM-Type Learn More about Wurth Elektronik optocoupler phototransistors	Datasheet	301In Stock 1 500Expected 22/10/2026	Cut Tape 0.306 CHF 0.278 CHF 0.247 CHF 0.216 CHF Reel 0.167 CHF MouseReel Available	Min.: 1 Mult.: 1 : 1 500
Transistor Output Optocouplers WL-OCPT 80V 5KVrms 10pF Dip 4 SLM-Type 140816144300 Wurth Elektronik 1: 0.306 CHF 3 000In Stock	Mfr. Part No. 140816144300 Mouser Part No 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 0.306 CHF 0.278 CHF 0.247 CHF 0.216 CHF Reel 0.167 CHF MouseReel Available	Min.: 1 Mult.: 1 : 1 500
Transistor Output Optocouplers WL-OCPT 35V 5KVrms 10pF Dip 4 M-Type 140817141010 Wurth Elektronik 1: 0.217 CHF 25In Stock	Mfr. Part No. 140817141010 Mouser Part No 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	0.217 CHF 0.193 CHF 0.178 CHF 0.162 CHF 0.154 CHF	Min.: 1 Mult.: 1
Transistor Output Optocouplers WL-OCPT 80V 3.75KVrm 10pF SOP 4 V-Type 140356145000 Wurth Elektronik 1: 0.314 CHF 5 481In Stock	Mfr. Part No. 140356145000 Mouser Part No 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 0.314 CHF 0.277 CHF 0.255 CHF 0.232 CHF 0.222 CHF Reel 0.21 CHF MouseReel Available	Min.: 1 Mult.: 1 : 3 000
Transistor Output Optocouplers WL-OCPT 80V 3.75KVrm 10pF SOP 4 V-Type 140356145300 Wurth Elektronik 1: 0.314 CHF 4 048In Stock	Mfr. Part No. 140356145300 Mouser Part No 710-140356145300	Wurth Elektronik	Transistor Output Optocouplers WL-OCPT 80V 3.75KVrm 10pF SOP 4 V-Type Learn More about Wurth Elektronik optocoupler phototransistors	Datasheet	4 048In Stock	Cut Tape 0.314 CHF 0.277 CHF 0.255 CHF 0.232 CHF 0.222 CHF Reel 0.21 CHF 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: 0.314 CHF 4 885In Stock	Mfr. Part No. 140356145100 Mouser Part No 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 885In Stock	Cut Tape 0.314 CHF 0.277 CHF 0.255 CHF 0.232 CHF 0.222 CHF Reel 0.222 CHF MouseReel Available	Min.: 1 Mult.: 1 : 3 000
Transistor Output Optocouplers WL-OCPT 80V 5KVrms 10pF Dip 4 SL-Type 140814243100 Wurth Elektronik 1: 0.314 CHF 3 845In Stock	Mfr. Part No. 140814243100 Mouser Part No 710-140814243100	Wurth Elektronik	Transistor Output Optocouplers WL-OCPT 80V 5KVrms 10pF Dip 4 SL-Type Learn More about Wurth Elektronik optocoupler phototransistors	Datasheet	3 845In Stock	Cut Tape 0.314 CHF 0.277 CHF 0.255 CHF 0.232 CHF 0.222 CHF Reel 0.21 CHF MouseReel Available	Min.: 1 Mult.: 1 : 1 500
Transistor Output Optocouplers WL-OCPT 80V 5KVrms 10pF Dip 4 SL-Type 140816143300 Wurth Elektronik 1: 0.306 CHF 5 637In Stock	Mfr. Part No. 140816143300 Mouser Part No 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 0.306 CHF 0.278 CHF 0.247 CHF 0.216 CHF Reel 0.166 CHF MouseReel Available	Min.: 1 Mult.: 1 : 1 500
Single Colour LEDs WL-SUTW Wtrclr TopVw 385nm 90mW 3.4V 120D 153283387A212 Wurth Elektronik 1: 0.515 CHF 2 585In Stock	Mfr. Part No. 153283387A212 Mouser Part No 710-153283387A212	Wurth Elektronik	Single Colour LEDs WL-SUTW Wtrclr TopVw 385nm 90mW 3.4V 120D Learn More about Wurth Elektronik optocoupler phototransistors	Datasheet	2 585In Stock	Cut Tape 0.515 CHF 0.475 CHF 0.427 CHF 0.371 CHF View Reel 0.314 CHF 0.33 CHF 0.314 CHF 0.314 CHF MouseReel Available	Min.: 1 Mult.: 1 : 4 000
Transistor Output Optocouplers WL-OCPT 20CTR MIN 400CTR MAX 80V 3750VRMS Phototransistor 140214247000 Wurth Elektronik 1: 0.402 CHF 5 947In Stock New Product	Mfr. Part No. 140214247000 Mouser Part No 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 0.402 CHF 0.282 CHF 0.185 CHF 0.161 CHF 0.145 CHF Reel 0.123 CHF MouseReel Available	Min.: 1 Mult.: 1 : 3 000
Transistor Output Optocouplers WL-OCPT 50CTR MIN 150CTR MAX 80V 3750VRMS Phototransistor 140214247100 Wurth Elektronik 1: 0.402 CHF 5 705In Stock New Product	Mfr. Part No. 140214247100 Mouser Part No 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 0.402 CHF 0.282 CHF 0.185 CHF 0.161 CHF 0.145 CHF Reel 0.123 CHF MouseReel Available	Min.: 1 Mult.: 1 : 3 000
Transistor Output Optocouplers WL-OCPT 80CTR MIN 400CTR MAX 80V 3750VRMS Phototransistor 140214247200 Wurth Elektronik 1: 0.402 CHF 5 649In Stock New Product	Mfr. Part No. 140214247200 Mouser Part No 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 0.402 CHF 0.282 CHF 0.185 CHF 0.161 CHF 0.145 CHF Reel 0.123 CHF MouseReel Available	Min.: 1 Mult.: 1 : 3 000
Transistor Output Optocouplers WL-OCPT 50CTR MIN 600CTR MAX 80V 3750VRMS Phototransistor 140217147000 Wurth Elektronik 1: 0.402 CHF 5 727In Stock New Product	Mfr. Part No. 140217147000 Mouser Part No 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 0.402 CHF 0.282 CHF 0.185 CHF 0.161 CHF 0.145 CHF Reel 0.123 CHF MouseReel Available	Min.: 1 Mult.: 1 : 3 000
Transistor Output Optocouplers WL-OCPT 80CTR MIN 160CTR MAX 80V 3750VRMS Phototransistor 140217147100 Wurth Elektronik 1: 0.402 CHF 5 545In Stock New Product	Mfr. Part No. 140217147100 Mouser Part No 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 0.402 CHF 0.282 CHF 0.185 CHF 0.161 CHF 0.145 CHF Reel 0.123 CHF MouseReel Available	Min.: 1 Mult.: 1 : 3 000
Transistor Output Optocouplers WL-OCPT 130CTR MIN 260CTR MAX 80V 3750VRMS Phototransistor 140217147200 Wurth Elektronik 1: 0.402 CHF 5 841In Stock New Product	Mfr. Part No. 140217147200 Mouser Part No 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 0.402 CHF 0.282 CHF 0.185 CHF 0.161 CHF 0.145 CHF Reel 0.123 CHF MouseReel Available	Min.: 1 Mult.: 1 : 3 000
Transistor Output Optocouplers WL-OCPT 200CTR MIN 400CTR MAX 80V 3750VRMS Phototransistor 140217147300 Wurth Elektronik 1: 0.402 CHF 5 980In Stock New Product	Mfr. Part No. 140217147300 Mouser Part No 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 0.402 CHF 0.282 CHF 0.185 CHF 0.161 CHF 0.145 CHF Reel 0.123 CHF MouseReel Available	Min.: 1 Mult.: 1 : 3 000
Transistor Output Optocouplers WL-OCPT 300CTR MIN 600CTR MAX 80V 3750VRMS Phototransistor 140217147400 Wurth Elektronik 1: 0.402 CHF 5 626In Stock New Product	Mfr. Part No. 140217147400 Mouser Part No 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 0.402 CHF 0.282 CHF 0.185 CHF 0.161 CHF 0.145 CHF Reel 0.123 CHF MouseReel Available	Min.: 1 Mult.: 1 : 3 000
Transistor Output Optocouplers WL-OCPT DIP8 S VCE=80V VISO=5000VRM 140827182000 Wurth Elektronik 1: 0.733 CHF 972In Stock	Mfr. Part No. 140827182000 Mouser Part No 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 0.733 CHF 0.64 CHF 0.552 CHF 0.485 CHF Reel 0.397 CHF MouseReel Available	Min.: 1 Mult.: 1 : 1 000
Transistor Output Optocouplers WL-OCPT 35V 5KVrms 10pF LSO 4 V-Type 140100146000 Wurth Elektronik 1: 0.233 CHF 42 362In Stock	Mfr. Part No. 140100146000 Mouser Part No 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 362In Stock	Cut Tape 0.233 CHF 0.203 CHF 0.187 CHF 0.169 CHF 0.163 CHF Reel 0.154 CHF 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: 0.314 CHF 9 958In Stock	Mfr. Part No. 140354245000 Mouser Part No 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	9 958In Stock	Cut Tape 0.314 CHF 0.277 CHF 0.255 CHF 0.232 CHF 0.222 CHF Reel 0.21 CHF MouseReel Available	Min.: 1 Mult.: 1 : 3 000
Single Colour LEDs WL-SMTW Wtrclr TopVw Grn 3.2V 50mA 520nm 150141GS73130 Wurth Elektronik 1: 0.322 CHF 11 693In Stock	Mfr. Part No. 150141GS73130 Mouser Part No 710-150141GS73130	Wurth Elektronik	Single Colour LEDs WL-SMTW Wtrclr TopVw Grn 3.2V 50mA 520nm Learn More about Wurth Elektronik optocoupler phototransistors	Datasheet	11 693In Stock	Cut Tape 0.322 CHF 0.285 CHF 0.263 CHF 0.241 CHF 0.227 CHF Reel 0.216 CHF MouseReel Available	Min.: 1 Mult.: 1 : 2 000
Single Colour LEDs WL-SMTW Wtrclr TopVw RED 2.4V 50mA 620nm 150141RS73130 Wurth Elektronik 1: 0.322 CHF 6 753In Stock 6 000Expected 26/10/2026	Mfr. Part No. 150141RS73130 Mouser Part No 710-150141RS73130	Wurth Elektronik	Single Colour LEDs WL-SMTW Wtrclr TopVw RED 2.4V 50mA 620nm Learn More about Wurth Elektronik optocoupler phototransistors	Datasheet	6 753In Stock 6 000Expected 26/10/2026	Cut Tape 0.322 CHF 0.285 CHF 0.263 CHF 0.241 CHF 0.227 CHF Reel 0.216 CHF MouseReel Available	Min.: 1 Mult.: 1 : 2 000
Single Colour LEDs WL-SMTW Wtrclr TopVw YEl 2.4V 50mA 620nm 150141YS73130 Wurth Elektronik 1: 0.322 CHF 7 443In Stock	Mfr. Part No. 150141YS73130 Mouser Part No 710-150141YS73130	Wurth Elektronik	Single Colour LEDs WL-SMTW Wtrclr TopVw YEl 2.4V 50mA 620nm Learn More about Wurth Elektronik optocoupler phototransistors	Datasheet	7 443In Stock	Cut Tape 0.322 CHF 0.285 CHF 0.263 CHF 0.241 CHF 0.227 CHF Reel 0.216 CHF MouseReel Available	Min.: 1 Mult.: 1 : 2 000
Single Colour LEDs WL-SUTW Wtrclr TopVw 365nm 50mW 3.6V 120D 153283367A212 Wurth Elektronik 1: 0.306 CHF 13 367In Stock	Mfr. Part No. 153283367A212 Mouser Part No 710-153283367A212	Wurth Elektronik	Single Colour LEDs WL-SUTW Wtrclr TopVw 365nm 50mW 3.6V 120D Learn More about Wurth Elektronik optocoupler phototransistors	Datasheet	13 367In Stock	Cut Tape 0.306 CHF 0.273 CHF 0.25 CHF 0.233 CHF View Reel 0.164 CHF 0.173 CHF 0.164 CHF 0.164 CHF MouseReel Available	Min.: 1 Mult.: 1 : 4 000
Single Colour LEDs WL-SUTW Wtrclr TopVw 395nm 140mW 3.4V 120 153283397A212 Wurth Elektronik 1: 0.515 CHF 5 324In Stock	Mfr. Part No. 153283397A212 Mouser Part No 710-153283397A212	Wurth Elektronik	Single Colour LEDs WL-SUTW Wtrclr TopVw 395nm 140mW 3.4V 120 Learn More about Wurth Elektronik optocoupler phototransistors	Datasheet	5 324In Stock	Cut Tape 0.515 CHF 0.467 CHF 0.427 CHF 0.371 CHF View Reel 0.314 CHF 0.33 CHF 0.314 CHF 0.314 CHF MouseReel Available	Min.: 1 Mult.: 1 : 4 000

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