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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 (USD) Filter the results in the table by unit price based on your quantity.	Qty.
Transistor Output Optocouplers WL-OCPT 80V 5KVrms 10pF Dip 4 M-Type 140816141210 Wurth Elektronik 1: $0.361 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	$0.361 $0.328 $0.292 $0.256	Min.: 1 Mult.: 1
Transistor Output Optocouplers WL-OCPT 80V 5KVrms 10pF Dip 4 M-Type 140816141310 Wurth Elektronik 1: $0.361 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	$0.361 $0.328 $0.292 $0.256	Min.: 1 Mult.: 1
Transistor Output Optocouplers WL-OCPT 80V 5KVrms 10pF Dip 4 S-Type 140816142000 Wurth Elektronik 1: $0.38 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 $0.38 $0.345 $0.307 $0.269 Reel $0.207 MouseReel Available	Min.: 1 Mult.: 1 : 1,500
Transistor Output Optocouplers WL-OCPT 80V 5KVrms 10pF Dip 4 S-Type 140816142100 Wurth Elektronik 1: $0.38 1,051In Stock	Mfr. Part No. 140816142100 Mouser Part No 710-140816142100	Wurth Elektronik	Transistor Output Optocouplers WL-OCPT 80V 5KVrms 10pF Dip 4 S-Type Learn More about Wurth Elektronik optocoupler phototransistors	Datasheet	1,051In Stock	Cut Tape $0.38 $0.345 $0.307 $0.269 Reel $0.207 MouseReel Available	Min.: 1 Mult.: 1 : 1,500
Transistor Output Optocouplers WL-OCPT 80V 5KVrms 10pF Dip 4 SL-Type 140816143000 Wurth Elektronik 1: $0.38 646In Stock	Mfr. Part No. 140816143000 Mouser Part No 710-140816143000	Wurth Elektronik	Transistor Output Optocouplers WL-OCPT 80V 5KVrms 10pF Dip 4 SL-Type Learn More about Wurth Elektronik optocoupler phototransistors	Datasheet	646In Stock	Cut Tape $0.38 $0.345 $0.307 $0.269 Reel $0.207 MouseReel Available	Min.: 1 Mult.: 1 : 1,500
Transistor Output Optocouplers WL-OCPT 80V 5KVrms 10pF Dip 4 SL-Type 140816143200 Wurth Elektronik 1: $0.38 552In Stock	Mfr. Part No. 140816143200 Mouser Part No 710-140816143200	Wurth Elektronik	Transistor Output Optocouplers WL-OCPT 80V 5KVrms 10pF Dip 4 SL-Type Learn More about Wurth Elektronik optocoupler phototransistors	Datasheet	552In Stock	Cut Tape $0.38 $0.345 $0.307 $0.269 Reel $0.207 MouseReel Available	Min.: 1 Mult.: 1 : 1,500
Transistor Output Optocouplers WL-OCPT 80V 5KVrms 10pF Dip 4 SL-Type 140816143400 Wurth Elektronik 1: $0.38 2,065In Stock	Mfr. Part No. 140816143400 Mouser Part No 710-140816143400	Wurth Elektronik	Transistor Output Optocouplers WL-OCPT 80V 5KVrms 10pF Dip 4 SL-Type Learn More about Wurth Elektronik optocoupler phototransistors	Datasheet	2,065In Stock	Cut Tape $0.38 $0.345 $0.307 $0.269 Reel $0.207 MouseReel Available	Min.: 1 Mult.: 1 : 1,500
Transistor Output Optocouplers WL-OCPT 80V 5KVrms 10pF Dip 4 SLM-Type 140816144200 Wurth Elektronik 1: $0.38 432In Stock	Mfr. Part No. 140816144200 Mouser Part No 710-140816144200	Wurth Elektronik	Transistor Output Optocouplers WL-OCPT 80V 5KVrms 10pF Dip 4 SLM-Type Learn More about Wurth Elektronik optocoupler phototransistors	Datasheet	432In Stock	Cut Tape $0.38 $0.345 $0.307 $0.269 Reel $0.207 MouseReel Available	Min.: 1 Mult.: 1 : 1,500
Transistor Output Optocouplers WL-OCPT 80V 5KVrms 10pF Dip 4 SLM-Type 140816144300 Wurth Elektronik 1: $0.38 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 $0.38 $0.345 $0.307 $0.269 Reel $0.207 MouseReel Available	Min.: 1 Mult.: 1 : 1,500
Transistor Output Optocouplers WL-OCPT 35V 5KVrms 10pF Dip 4 Standard 140817140010 Wurth Elektronik 1: $0.27 437In Stock	Mfr. Part No. 140817140010 Mouser Part No 710-140817140010	Wurth Elektronik	Transistor Output Optocouplers WL-OCPT 35V 5KVrms 10pF Dip 4 Standard Learn More about Wurth Elektronik optocoupler phototransistors	Datasheet	437In Stock	$0.27 $0.24 $0.221 $0.201 $0.192	Min.: 1 Mult.: 1
Transistor Output Optocouplers WL-OCPT 35V 5KVrms 10pF Dip 4 Standard 140817140210 Wurth Elektronik 1: $0.27 168In Stock	Mfr. Part No. 140817140210 Mouser Part No 710-140817140210	Wurth Elektronik	Transistor Output Optocouplers WL-OCPT 35V 5KVrms 10pF Dip 4 Standard Learn More about Wurth Elektronik optocoupler phototransistors	Datasheet	168In Stock	$0.27 $0.24 $0.221 $0.201 $0.192	Min.: 1 Mult.: 1
Transistor Output Optocouplers WL-OCPT 35V 5KVrms 10pF Dip 4 Standard 140817140310 Wurth Elektronik 1: $0.27 212In Stock	Mfr. Part No. 140817140310 Mouser Part No 710-140817140310	Wurth Elektronik	Transistor Output Optocouplers WL-OCPT 35V 5KVrms 10pF Dip 4 Standard Learn More about Wurth Elektronik optocoupler phototransistors	Datasheet	212In Stock	$0.27 $0.24 $0.221 $0.201 $0.192	Min.: 1 Mult.: 1
Transistor Output Optocouplers WL-OCPT 35V 5KVrms 10pF Dip 4 Standard 140817140410 Wurth Elektronik 1: $0.27 44In Stock 200Expected 2026/10/02	Mfr. Part No. 140817140410 Mouser Part No 710-140817140410	Wurth Elektronik	Transistor Output Optocouplers WL-OCPT 35V 5KVrms 10pF Dip 4 Standard Learn More about Wurth Elektronik optocoupler phototransistors	Datasheet	44In Stock 200Expected 2026/10/02	$0.27 $0.24 $0.221 $0.201 $0.192	Min.: 1 Mult.: 1
Transistor Output Optocouplers WL-OCPT 35V 5KVrms 10pF Dip 4 M-Type 140817141310 Wurth Elektronik 1: $0.27 190In Stock	Mfr. Part No. 140817141310 Mouser Part No 710-140817141310	Wurth Elektronik	Transistor Output Optocouplers WL-OCPT 35V 5KVrms 10pF Dip 4 M-Type Learn More about Wurth Elektronik optocoupler phototransistors	Datasheet	190In Stock	$0.27 $0.24 $0.221 $0.201 $0.192	Min.: 1 Mult.: 1
Transistor Output Optocouplers WL-OCPT 35V 5KVrms 10pF Dip 4 M-Type 140817141410 Wurth Elektronik 1: $0.27 100In Stock	Mfr. Part No. 140817141410 Mouser Part No 710-140817141410	Wurth Elektronik	Transistor Output Optocouplers WL-OCPT 35V 5KVrms 10pF Dip 4 M-Type Learn More about Wurth Elektronik optocoupler phototransistors	Datasheet	100In Stock	$0.27 $0.24 $0.221 $0.201 $0.192	Min.: 1 Mult.: 1
Transistor Output Optocouplers WL-OCPT 35V 5KVrms 10pF Dip 4 S-Type 140817142000 Wurth Elektronik 1: $0.29 1,000In Stock	Mfr. Part No. 140817142000 Mouser Part No 710-140817142000	Wurth Elektronik	Transistor Output Optocouplers WL-OCPT 35V 5KVrms 10pF Dip 4 S-Type Learn More about Wurth Elektronik optocoupler phototransistors	Datasheet	1,000In Stock	Cut Tape $0.29 $0.252 $0.233 $0.211 $0.202 Reel $0.192 MouseReel Available	Min.: 1 Mult.: 1 : 1,500
Transistor Output Optocouplers WL-OCPT 35V 5KVrms 10pF Dip 4 S-Type 140817142100 Wurth Elektronik 1: $0.29 1,610In Stock 1,500Expected 2026/10/23	Mfr. Part No. 140817142100 Mouser Part No 710-140817142100	Wurth Elektronik	Transistor Output Optocouplers WL-OCPT 35V 5KVrms 10pF Dip 4 S-Type Learn More about Wurth Elektronik optocoupler phototransistors	Datasheet	1,610In Stock 1,500Expected 2026/10/23	Cut Tape $0.29 $0.252 $0.233 $0.211 $0.202 Reel $0.192 MouseReel Available	Min.: 1 Mult.: 1 : 1,500
Transistor Output Optocouplers WL-OCPT 35V 5KVrms 10pF Dip 4 S-Type 140817142200 Wurth Elektronik 1: $0.29 1,651In Stock	Mfr. Part No. 140817142200 Mouser Part No 710-140817142200	Wurth Elektronik	Transistor Output Optocouplers WL-OCPT 35V 5KVrms 10pF Dip 4 S-Type Learn More about Wurth Elektronik optocoupler phototransistors	Datasheet	1,651In Stock	Cut Tape $0.29 $0.252 $0.233 $0.211 $0.202 Reel $0.192 MouseReel Available	Min.: 1 Mult.: 1 : 1,500
Transistor Output Optocouplers WL-OCPT 35V 5KVrms 10pF Dip 4 S-Type 140817142300 Wurth Elektronik 1: $0.29 189In Stock	Mfr. Part No. 140817142300 Mouser Part No 710-140817142300	Wurth Elektronik	Transistor Output Optocouplers WL-OCPT 35V 5KVrms 10pF Dip 4 S-Type Learn More about Wurth Elektronik optocoupler phototransistors	Datasheet	189In Stock	Cut Tape $0.29 $0.252 $0.233 $0.211 $0.202 Reel $0.192 MouseReel Available	Min.: 1 Mult.: 1 : 1,500
Transistor Output Optocouplers WL-OCPT 35V 5KVrms 10pF Dip 4 SL-Type 140817143100 Wurth Elektronik 1: $0.29 1,401In Stock	Mfr. Part No. 140817143100 Mouser Part No 710-140817143100	Wurth Elektronik	Transistor Output Optocouplers WL-OCPT 35V 5KVrms 10pF Dip 4 SL-Type Learn More about Wurth Elektronik optocoupler phototransistors	Datasheet	1,401In Stock	Cut Tape $0.29 $0.252 $0.233 $0.211 $0.202 Reel $0.192 MouseReel Available	Min.: 1 Mult.: 1 : 1,500
Transistor Output Optocouplers WL-OCPT 35V 5KVrms 10pF Dip 4 SL-Type 140817143200 Wurth Elektronik 1: $0.29 714In Stock 3,000Expected 2026/10/23	Mfr. Part No. 140817143200 Mouser Part No 710-140817143200	Wurth Elektronik	Transistor Output Optocouplers WL-OCPT 35V 5KVrms 10pF Dip 4 SL-Type Learn More about Wurth Elektronik optocoupler phototransistors	Datasheet	714In Stock 3,000Expected 2026/10/23	Cut Tape $0.29 $0.252 $0.233 $0.211 $0.202 Reel $0.192 MouseReel Available	Min.: 1 Mult.: 1 : 1,500
Transistor Output Optocouplers WL-OCPT 35V 5KVrms 10pF Dip 4 SL-Type 140817143300 Wurth Elektronik 1: $0.29 2,720In Stock	Mfr. Part No. 140817143300 Mouser Part No 710-140817143300	Wurth Elektronik	Transistor Output Optocouplers WL-OCPT 35V 5KVrms 10pF Dip 4 SL-Type Learn More about Wurth Elektronik optocoupler phototransistors	Datasheet	2,720In Stock	Cut Tape $0.29 $0.252 $0.233 $0.211 $0.202 Reel $0.192 MouseReel Available	Min.: 1 Mult.: 1 : 1,500
Transistor Output Optocouplers WL-OCPT 35V 5KVrms 10pF Dip 4 SL-Type 140817143400 Wurth Elektronik 1: $0.29 1,674In Stock	Mfr. Part No. 140817143400 Mouser Part No 710-140817143400	Wurth Elektronik	Transistor Output Optocouplers WL-OCPT 35V 5KVrms 10pF Dip 4 SL-Type Learn More about Wurth Elektronik optocoupler phototransistors	Datasheet	1,674In Stock	Cut Tape $0.29 $0.252 $0.233 $0.211 $0.202 Reel $0.192 MouseReel Available	Min.: 1 Mult.: 1 : 1,500
Transistor Output Optocouplers WL-OCPT 35V 5KVrms 10pF Dip 4 SLM-Type 140817144000 Wurth Elektronik 1: $0.29 4,495In Stock	Mfr. Part No. 140817144000 Mouser Part No 710-140817144000	Wurth Elektronik	Transistor Output Optocouplers WL-OCPT 35V 5KVrms 10pF Dip 4 SLM-Type Learn More about Wurth Elektronik optocoupler phototransistors	Datasheet	4,495In Stock	Cut Tape $0.29 $0.252 $0.233 $0.211 $0.202 Reel $0.192 MouseReel Available	Min.: 1 Mult.: 1 : 1,500
Transistor Output Optocouplers WL-OCPT 35V 5KVrms 10pF Dip 4 SLM-Type 140817144100 Wurth Elektronik 1: $0.29 1,015In Stock	Mfr. Part No. 140817144100 Mouser Part No 710-140817144100	Wurth Elektronik	Transistor Output Optocouplers WL-OCPT 35V 5KVrms 10pF Dip 4 SLM-Type Learn More about Wurth Elektronik optocoupler phototransistors	Datasheet	1,015In Stock	Cut Tape $0.29 $0.252 $0.233 $0.211 $0.202 Reel $0.192 MouseReel Available	Min.: 1 Mult.: 1 : 1,500

Optocoupler Phototransistors

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