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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 (SGD) Filter the results in the table by unit price based on your quantity.	Qty.
Single Colour LEDs WL-SUTW Wtrclr TopVw 395nm 140mW 3.4V 120 153283397A212 Wurth Elektronik 1: $0.87 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 $0.87 $0.789 $0.721 $0.626 View Reel $0.53 $0.558 $0.53 $0.53 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
Transistor Output Optocouplers WL-OCPT 35V 5KVrms 10pF LSO 4 V-Type 140105146000 Wurth Elektronik 1: $0.394 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 $0.394 $0.343 $0.317 $0.287 $0.275 Reel $0.261 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
Transistor Output Optocouplers WL-OCPT 35V 5KVrms 10pF LSO 4 V-Type 140106146000 Wurth Elektronik 1: $0.394 4,436In 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	4,436In Stock	Cut Tape $0.394 $0.343 $0.317 $0.287 $0.275 Reel $0.261 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
Transistor Output Optocouplers WL-OCPT 35V 5KVrms 10pF LSO 4 V-Type 140107146000 Wurth Elektronik 1: $0.394 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 $0.394 $0.343 $0.317 $0.287 $0.275 Reel $0.261 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
Transistor Output Optocouplers WL-OCPT 35V 5KVrms 10pF LSO 4 V-Type 140108146000 Wurth Elektronik 1: $0.394 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 $0.394 $0.343 $0.317 $0.287 $0.275 Reel $0.261 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
Transistor Output Optocouplers WL-OCPT 35V 5KVrms 10pF LSO 4 V-Type 140109146000 Wurth Elektronik 1: $0.394 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 $0.394 $0.343 $0.317 $0.287 $0.275 Reel $0.261 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: $0.53 3,301In Stock 6,000Expected 22/1/2027	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	3,301In Stock 6,000Expected 22/1/2027	Cut Tape $0.53 $0.468 $0.43 $0.392 $0.375 Reel $0.355 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: $0.53 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 $0.53 $0.468 $0.43 $0.392 $0.375 Reel $0.355 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: $0.53 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 $0.53 $0.468 $0.43 $0.392 $0.375 Reel $0.355 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: $0.394 5,562In 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	5,562In Stock	Cut Tape $0.394 $0.343 $0.317 $0.287 $0.275 Reel $0.261 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: $0.394 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 $0.394 $0.343 $0.317 $0.287 $0.275 Reel $0.261 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: $0.394 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 $0.394 $0.343 $0.317 $0.287 $0.275 Reel $0.261 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: $0.394 2,516In Stock 3,000Expected 20/11/2026	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 20/11/2026	Cut Tape $0.394 $0.343 $0.317 $0.287 $0.275 Reel $0.261 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
Transistor Output Optocouplers WL-OCPT 35V 3.75KVrm 10pF SOP 4 V-Type 140357145400 Wurth Elektronik 1: $0.394 2,047In Stock 15,000On Order	Mfr. Part No. 140357145400 Mouser Part No 710-140357145400	Wurth Elektronik	Transistor Output Optocouplers WL-OCPT 35V 3.75KVrm 10pF SOP 4 V-Type Learn More about Wurth Elektronik optocoupler phototransistors	Datasheet	2,047In Stock 15,000On Order On Order Ship Dates Mfr. No: 140357145400 Stock: 2,047 Can Dispatch Immediately On Order: 6,000 Expected 10/11/2026 9,000 Expected 25/1/2027 Factory Lead Time: 14 Weeks	Cut Tape $0.394 $0.343 $0.317 $0.287 $0.275 Reel $0.261 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
Transistor Output Optocouplers WL-OCPT 80V 5KVrms 10pF Dip 4 Standard 140814240010 Wurth Elektronik 1: $0.503 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	$0.503 $0.445 $0.409 $0.373 $0.355	Min.: 1 Mult.: 1
Transistor Output Optocouplers WL-OCPT 80V 5KVrms 10pF Dip 4 M-Type 140814241110 Wurth Elektronik 1: $0.503 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	$0.503 $0.445 $0.409 $0.373 $0.355	Min.: 1 Mult.: 1
Transistor Output Optocouplers WL-OCPT 80V 5KVrms 10pF Dip 4 SL-Type 140814243000 Wurth Elektronik 1: $0.53 1,034In 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	1,034In Stock	Cut Tape $0.53 $0.468 $0.43 $0.392 $0.375 Reel $0.355 MouseReel Available	Min.: 1 Mult.: 1 : 1,500
Transistor Output Optocouplers WL-OCPT 80V 5KVrms 10pF Dip 4 SL-Type 140814243100 Wurth Elektronik 1: $0.53 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 $0.53 $0.468 $0.43 $0.392 $0.375 Reel $0.355 MouseReel Available	Min.: 1 Mult.: 1 : 1,500
Transistor Output Optocouplers WL-OCPT 80V 5KVrms 10pF Dip 4 Standard 140816140110 Wurth Elektronik 1: $0.49 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	$0.49 $0.446 $0.397 $0.348	Min.: 1 Mult.: 1
Transistor Output Optocouplers WL-OCPT 80V 5KVrms 10pF Dip 4 Standard 140816140210 Wurth Elektronik 1: $0.49 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	$0.49 $0.446 $0.397 $0.348	Min.: 1 Mult.: 1
Transistor Output Optocouplers WL-OCPT 80V 5KVrms 10pF Dip 4 Standard 140816140410 Wurth Elektronik 1: $0.49 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	$0.49 $0.446 $0.397 $0.348	Min.: 1 Mult.: 1
Transistor Output Optocouplers WL-OCPT 80V 5KVrms 10pF Dip 4 M-Type 140816141010 Wurth Elektronik 1: $0.49 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	$0.49 $0.446 $0.397 $0.348	Min.: 1 Mult.: 1
Transistor Output Optocouplers WL-OCPT 80V 5KVrms 10pF Dip 4 M-Type 140816141210 Wurth Elektronik 1: $0.49 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	$0.49 $0.446 $0.397 $0.348	Min.: 1 Mult.: 1
Transistor Output Optocouplers WL-OCPT 80V 5KVrms 10pF Dip 4 M-Type 140816141310 Wurth Elektronik 1: $0.49 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	$0.49 $0.446 $0.397 $0.348	Min.: 1 Mult.: 1
Transistor Output Optocouplers WL-OCPT 80V 5KVrms 10pF Dip 4 S-Type 140816142000 Wurth Elektronik 1: $0.517 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 $0.517 $0.469 $0.418 $0.366 Reel $0.282 MouseReel Available	Min.: 1 Mult.: 1 : 1,500

Optocoupler Phototransistors

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Optocoupler Phototransistors

Types of Opto-electronics