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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 (GBP) Filter the results in the table by unit price based on your quantity.	Qty.
Single Colour LEDs WL-SUTW Wtrclr TopVw 365nm 50mW 3.6V 120D 153283367A212 Wurth Elektronik 1: £0.285 13,030In 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	13,030In Stock	Cut Tape £0.285 £0.255 £0.233 £0.217 View Reel £0.153 £0.162 £0.153 £0.153 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
Single Colour LEDs WL-SUTW Wtrclr TopVw 395nm 140mW 3.4V 120 153283397A212 Wurth Elektronik 1: £0.48 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 £0.48 £0.436 £0.398 £0.346 View Reel £0.292 £0.308 £0.292 £0.292 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
Transistor Output Optocouplers WL-OCPT 35V 5KVrms 10pF LSO 4 V-Type 140105146000 Wurth Elektronik 1: £0.217 1,359In Stock 3,000Expected 20/11/2026	Mfr. Part No. 140105146000 Mouser Part No 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 20/11/2026	Cut Tape £0.217 £0.189 £0.175 £0.158 £0.152 Reel £0.144 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
Transistor Output Optocouplers WL-OCPT 35V 5KVrms 10pF LSO 4 V-Type 140106146000 Wurth Elektronik 1: £0.217 4,246In Stock	Mfr. Part No. 140106146000 Mouser Part No 710-140106146000	Wurth Elektronik	Transistor Output Optocouplers WL-OCPT 35V 5KVrms 10pF LSO 4 V-Type Learn More about Wurth Elektronik optocoupler phototransistors	Datasheet	4,246In Stock	Cut Tape £0.217 £0.189 £0.175 £0.158 £0.152 Reel £0.144 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
Transistor Output Optocouplers WL-OCPT 35V 5KVrms 10pF LSO 4 V-Type 140107146000 Wurth Elektronik 1: £0.217 2,991In Stock	Mfr. Part No. 140107146000 Mouser Part No 710-140107146000	Wurth Elektronik	Transistor Output Optocouplers WL-OCPT 35V 5KVrms 10pF LSO 4 V-Type Learn More about Wurth Elektronik optocoupler phototransistors	Datasheet	2,991In Stock	Cut Tape £0.217 £0.189 £0.175 £0.158 £0.152 Reel £0.144 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
Transistor Output Optocouplers WL-OCPT 35V 5KVrms 10pF LSO 4 V-Type 140108146000 Wurth Elektronik 1: £0.217 3,810In Stock	Mfr. Part No. 140108146000 Mouser Part No 710-140108146000	Wurth Elektronik	Transistor Output Optocouplers WL-OCPT 35V 5KVrms 10pF LSO 4 V-Type Learn More about Wurth Elektronik optocoupler phototransistors	Datasheet	3,810In Stock	Cut Tape £0.217 £0.189 £0.175 £0.158 £0.152 Reel £0.144 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
Transistor Output Optocouplers WL-OCPT 35V 5KVrms 10pF LSO 4 V-Type 140109146000 Wurth Elektronik 1: £0.217 4,048In Stock	Mfr. Part No. 140109146000 Mouser Part No 710-140109146000	Wurth Elektronik	Transistor Output Optocouplers WL-OCPT 35V 5KVrms 10pF LSO 4 V-Type Learn More about Wurth Elektronik optocoupler phototransistors	Datasheet	4,048In Stock	Cut Tape £0.217 £0.189 £0.175 £0.158 £0.152 Reel £0.144 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
Transistor Output Optocouplers WL-OCPT 35V 3.75KVrm 10pF SOP 4 V-Type 140354245100 Wurth Elektronik 1: £0.292 3,100In Stock 6,000Expected 22/01/2027	Mfr. Part No. 140354245100 Mouser Part No 710-140354245100	Wurth Elektronik	Transistor Output Optocouplers WL-OCPT 35V 3.75KVrm 10pF SOP 4 V-Type Learn More about Wurth Elektronik optocoupler phototransistors	Datasheet	3,100In Stock 6,000Expected 22/01/2027	Cut Tape £0.292 £0.258 £0.237 £0.217 £0.207 Reel £0.196 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
Transistor Output Optocouplers WL-OCPT 80V 3.75KVrm 10pF SOP 4 V-Type 140356145200 Wurth Elektronik 1: £0.292 4,648In Stock	Mfr. Part No. 140356145200 Mouser Part No 710-140356145200	Wurth Elektronik	Transistor Output Optocouplers WL-OCPT 80V 3.75KVrm 10pF SOP 4 V-Type Learn More about Wurth Elektronik optocoupler phototransistors	Datasheet	4,648In Stock	Cut Tape £0.292 £0.258 £0.237 £0.217 £0.207 Reel £0.196 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
Transistor Output Optocouplers WL-OCPT 80V 3.75KVrm 10pF SOP 4 V-Type 140356145400 Wurth Elektronik 1: £0.292 5,120In Stock	Mfr. Part No. 140356145400 Mouser Part No 710-140356145400	Wurth Elektronik	Transistor Output Optocouplers WL-OCPT 80V 3.75KVrm 10pF SOP 4 V-Type Learn More about Wurth Elektronik optocoupler phototransistors	Datasheet	5,120In Stock	Cut Tape £0.292 £0.258 £0.237 £0.217 £0.207 Reel £0.196 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
Transistor Output Optocouplers WL-OCPT 35V 3.75KVrm 10pF SOP 4 V-Type 140357145000 Wurth Elektronik 1: £0.217 5,551In Stock	Mfr. Part No. 140357145000 Mouser Part No 710-140357145000	Wurth Elektronik	Transistor Output Optocouplers WL-OCPT 35V 3.75KVrm 10pF SOP 4 V-Type Learn More about Wurth Elektronik optocoupler phototransistors	Datasheet	5,551In Stock	Cut Tape £0.217 £0.189 £0.175 £0.158 £0.152 Reel £0.144 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
Transistor Output Optocouplers WL-OCPT 35V 3.75KVrm 10pF SOP 4 V-Type 140357145100 Wurth Elektronik 1: £0.217 2,980In Stock	Mfr. Part No. 140357145100 Mouser Part No 710-140357145100	Wurth Elektronik	Transistor Output Optocouplers WL-OCPT 35V 3.75KVrm 10pF SOP 4 V-Type Learn More about Wurth Elektronik optocoupler phototransistors	Datasheet	2,980In Stock	Cut Tape £0.217 £0.189 £0.175 £0.158 £0.152 Reel £0.144 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
Transistor Output Optocouplers WL-OCPT 35V 3.75KVrm 10pF SOP 4 V-Type 140357145200 Wurth Elektronik 1: £0.217 3,754In Stock	Mfr. Part No. 140357145200 Mouser Part No 710-140357145200	Wurth Elektronik	Transistor Output Optocouplers WL-OCPT 35V 3.75KVrm 10pF SOP 4 V-Type Learn More about Wurth Elektronik optocoupler phototransistors	Datasheet	3,754In Stock	Cut Tape £0.217 £0.189 £0.175 £0.158 £0.152 Reel £0.144 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
Transistor Output Optocouplers WL-OCPT 35V 3.75KVrm 10pF SOP 4 V-Type 140357145300 Wurth Elektronik 1: £0.217 2,516In Stock 3,000Expected 27/11/2026	Mfr. Part No. 140357145300 Mouser Part No 710-140357145300	Wurth Elektronik	Transistor Output Optocouplers WL-OCPT 35V 3.75KVrm 10pF SOP 4 V-Type Learn More about Wurth Elektronik optocoupler phototransistors	Datasheet	2,516In Stock 3,000Expected 27/11/2026	Cut Tape £0.217 £0.189 £0.175 £0.158 £0.152 Reel £0.144 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
Transistor Output Optocouplers WL-OCPT 80V 5KVrms 10pF Dip 4 Standard 140814240010 Wurth Elektronik 1: £0.278 190In Stock	Mfr. Part No. 140814240010 Mouser Part No 710-140814240010	Wurth Elektronik	Transistor Output Optocouplers WL-OCPT 80V 5KVrms 10pF Dip 4 Standard Learn More about Wurth Elektronik optocoupler phototransistors	Datasheet	190In Stock	£0.278 £0.245 £0.226 £0.206 £0.196	Min.: 1 Mult.: 1
Transistor Output Optocouplers WL-OCPT 80V 5KVrms 10pF Dip 4 M-Type 140814241110 Wurth Elektronik 1: £0.278 200In Stock	Mfr. Part No. 140814241110 Mouser Part No 710-140814241110	Wurth Elektronik	Transistor Output Optocouplers WL-OCPT 80V 5KVrms 10pF Dip 4 M-Type Learn More about Wurth Elektronik optocoupler phototransistors	Datasheet	200In Stock	£0.278 £0.245 £0.226 £0.206 £0.196	Min.: 1 Mult.: 1
Transistor Output Optocouplers WL-OCPT 80V 5KVrms 10pF Dip 4 SL-Type 140814243000 Wurth Elektronik 1: £0.292 834In Stock	Mfr. Part No. 140814243000 Mouser Part No 710-140814243000	Wurth Elektronik	Transistor Output Optocouplers WL-OCPT 80V 5KVrms 10pF Dip 4 SL-Type Learn More about Wurth Elektronik optocoupler phototransistors	Datasheet	834In Stock	Cut Tape £0.292 £0.258 £0.237 £0.217 £0.207 Reel £0.196 MouseReel Available	Min.: 1 Mult.: 1 : 1,500
Transistor Output Optocouplers WL-OCPT 80V 5KVrms 10pF Dip 4 SL-Type 140814243100 Wurth Elektronik 1: £0.292 3,795In 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	3,795In Stock	Cut Tape £0.292 £0.258 £0.237 £0.217 £0.207 Reel £0.196 MouseReel Available	Min.: 1 Mult.: 1 : 1,500
Transistor Output Optocouplers WL-OCPT 80V 5KVrms 10pF Dip 4 Standard 140816140110 Wurth Elektronik 1: £0.271 142In Stock	Mfr. Part No. 140816140110 Mouser Part No 710-140816140110	Wurth Elektronik	Transistor Output Optocouplers WL-OCPT 80V 5KVrms 10pF Dip 4 Standard Learn More about Wurth Elektronik optocoupler phototransistors	Datasheet	142In Stock	£0.271 £0.246 £0.219 £0.192	Min.: 1 Mult.: 1
Transistor Output Optocouplers WL-OCPT 80V 5KVrms 10pF Dip 4 Standard 140816140210 Wurth Elektronik 1: £0.271 158In Stock	Mfr. Part No. 140816140210 Mouser Part No 710-140816140210	Wurth Elektronik	Transistor Output Optocouplers WL-OCPT 80V 5KVrms 10pF Dip 4 Standard Learn More about Wurth Elektronik optocoupler phototransistors	Datasheet	158In Stock	£0.271 £0.246 £0.219 £0.192	Min.: 1 Mult.: 1
Transistor Output Optocouplers WL-OCPT 80V 5KVrms 10pF Dip 4 Standard 140816140410 Wurth Elektronik 1: £0.271 959In Stock	Mfr. Part No. 140816140410 Mouser Part No 710-140816140410	Wurth Elektronik	Transistor Output Optocouplers WL-OCPT 80V 5KVrms 10pF Dip 4 Standard Learn More about Wurth Elektronik optocoupler phototransistors	Datasheet	959In Stock	£0.271 £0.246 £0.219 £0.192	Min.: 1 Mult.: 1
Transistor Output Optocouplers WL-OCPT 80V 5KVrms 10pF Dip 4 M-Type 140816141010 Wurth Elektronik 1: £0.271 149In Stock	Mfr. Part No. 140816141010 Mouser Part No 710-140816141010	Wurth Elektronik	Transistor Output Optocouplers WL-OCPT 80V 5KVrms 10pF Dip 4 M-Type Learn More about Wurth Elektronik optocoupler phototransistors	Datasheet	149In Stock	£0.271 £0.246 £0.219 £0.192	Min.: 1 Mult.: 1
Transistor Output Optocouplers WL-OCPT 80V 5KVrms 10pF Dip 4 M-Type 140816141210 Wurth Elektronik 1: £0.271 462In Stock	Mfr. Part No. 140816141210 Mouser Part No 710-140816141210	Wurth Elektronik	Transistor Output Optocouplers WL-OCPT 80V 5KVrms 10pF Dip 4 M-Type Learn More about Wurth Elektronik optocoupler phototransistors	Datasheet	462In Stock	£0.271 £0.246 £0.219 £0.192	Min.: 1 Mult.: 1
Transistor Output Optocouplers WL-OCPT 80V 5KVrms 10pF Dip 4 M-Type 140816141310 Wurth Elektronik 1: £0.271 166In Stock	Mfr. Part No. 140816141310 Mouser Part No 710-140816141310	Wurth Elektronik	Transistor Output Optocouplers WL-OCPT 80V 5KVrms 10pF Dip 4 M-Type Learn More about Wurth Elektronik optocoupler phototransistors	Datasheet	166In Stock	£0.271 £0.246 £0.219 £0.192	Min.: 1 Mult.: 1
Transistor Output Optocouplers WL-OCPT 80V 5KVrms 10pF Dip 4 S-Type 140816142000 Wurth Elektronik 1: £0.285 879In Stock	Mfr. Part No. 140816142000 Mouser Part No 710-140816142000	Wurth Elektronik	Transistor Output Optocouplers WL-OCPT 80V 5KVrms 10pF Dip 4 S-Type Learn More about Wurth Elektronik optocoupler phototransistors	Datasheet	879In Stock	Cut Tape £0.285 £0.259 £0.23 £0.202 Reel £0.155 MouseReel Available	Min.: 1 Mult.: 1 : 1,500

Optocoupler Phototransistors

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Optocoupler Phototransistors

Types of Opto-electronics