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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 S-Type 140816142100 Wurth Elektronik 1: $0.38 1,031In 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	1,031In 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 252In 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	252In 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 1,963In 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	1,963In 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 35V 5KVrms 10pF Dip 4 Standard 140817140010 Wurth Elektronik 1: $0.27 422In 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	422In Stock	$0.27 $0.239 $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 $0.239 $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 202In 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	202In Stock	$0.27 $0.239 $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 200In Stock 300Expected 29/01/2027	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	200In Stock 300Expected 29/01/2027	$0.27 $0.239 $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 $0.239 $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 $0.239 $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 $0.232 $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 13/11/2026	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 13/11/2026	Cut Tape $0.29 $0.252 $0.232 $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 1,648In 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	1,648In Stock	Cut Tape $0.29 $0.252 $0.232 $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 $0.232 $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 140817142400 Wurth Elektronik 1: $0.29 1,337In Stock	Mfr. Part No. 140817142400 Mouser Part No 710-140817142400	Wurth Elektronik	Transistor Output Optocouplers WL-OCPT 35V 5KVrms 10pF Dip 4 S-Type Learn More about Wurth Elektronik optocoupler phototransistors	Datasheet	1,337In Stock	Cut Tape $0.29 $0.252 $0.232 $0.211 $0.202 Reel $0.191 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 $0.232 $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 $0.232 $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 1,659In 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	1,659In Stock	Cut Tape $0.29 $0.252 $0.232 $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 $0.232 $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 140817144200 Wurth Elektronik 1: $0.29 1,229In Stock	Mfr. Part No. 140817144200 Mouser Part No 710-140817144200	Wurth Elektronik	Transistor Output Optocouplers WL-OCPT 35V 5KVrms 10pF Dip 4 SLM-Type Learn More about Wurth Elektronik optocoupler phototransistors	Datasheet	1,229In Stock	Cut Tape $0.29 $0.252 $0.232 $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 140817144300 Wurth Elektronik 1: $0.29 468In Stock	Mfr. Part No. 140817144300 Mouser Part No 710-140817144300	Wurth Elektronik	Transistor Output Optocouplers WL-OCPT 35V 5KVrms 10pF Dip 4 SLM-Type Learn More about Wurth Elektronik optocoupler phototransistors	Datasheet	468In Stock	Cut Tape $0.29 $0.252 $0.232 $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 140817144400 Wurth Elektronik 1: $0.29 2,551In Stock	Mfr. Part No. 140817144400 Mouser Part No 710-140817144400	Wurth Elektronik	Transistor Output Optocouplers WL-OCPT 35V 5KVrms 10pF Dip 4 SLM-Type Learn More about Wurth Elektronik optocoupler phototransistors	Datasheet	2,551In Stock	Cut Tape $0.29 $0.252 $0.232 $0.211 $0.202 Reel $0.192 MouseReel Available	Min.: 1 Mult.: 1 : 1,500
Transistor Output Optocouplers WL-OCPT DIP8 M VCE=80V VISO=5000VRM 140827181010 Wurth Elektronik 1: $0.86 100In Stock	Mfr. Part No. 140827181010 Mouser Part No 710-140827181010	Wurth Elektronik	Transistor Output Optocouplers WL-OCPT DIP8 M VCE=80V VISO=5000VRM Learn More about Wurth Elektronik optocoupler phototransistors	Datasheet	100In Stock	$0.86 $0.755 $0.652 $0.572 $0.493	Min.: 1 Mult.: 1
Transistor Output Optocouplers WL-OCPT DIP8 SL VCE=80V VISO=5000VRM 140827183000 Wurth Elektronik 1: $0.91 92In Stock 1,000Expected 02/02/2027	Mfr. Part No. 140827183000 Mouser Part No 710-140827183000	Wurth Elektronik	Transistor Output Optocouplers WL-OCPT DIP8 SL VCE=80V VISO=5000VRM Learn More about Wurth Elektronik optocoupler phototransistors	Datasheet	92In Stock 1,000Expected 02/02/2027	Cut Tape $0.91 $0.795 $0.686 $0.602 Reel $0.493 MouseReel Available	Min.: 1 Mult.: 1 : 1,000

Optocoupler Phototransistors

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Optocoupler Phototransistors

Types of Opto-electronics