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.

Results: 100
Select Image Part #
 Mfr.
Description Datasheet Availability Pricing (GBP) Filter the results in the table by unit price based on your quantity.
Qty. RoHS
Wurth Elektronik Single Colour LEDs WL-SUTW Wtrclr TopVw 395nm 140mW 3.4V 120
Datasheet
3,410In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 4,000

Wurth Elektronik Transistor Output Optocouplers WL-OCPT 80V 5KVrms 10pF Dip 4 SLM-Type
Datasheet
500In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1,500

Wurth Elektronik Transistor Output Optocouplers WL-OCPT 80V 3.75KVrm 10pF SOP 4 V-Type
Datasheet
3,458In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

Wurth Elektronik Transistor Output Optocouplers WL-OCPT 80V 3.75KVrm 10pF SOP 4 V-Type
Datasheet
5,551In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

Wurth Elektronik Transistor Output Optocouplers WL-OCPT 35V 5KVrms 10pF Dip 4 M-Type
Datasheet
33In Stock
Min.: 1
Mult.: 1

Wurth Elektronik Single Colour LEDs WL-SMTW Wtrclr TopVw Ble 3.2V 50mA 470nm
Datasheet
2,894In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 2,000

Wurth Elektronik Transistor Output Optocouplers WL-OCPT 80V 5KVrms 10pF Dip 4 SL-Type
Datasheet
6,041In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1,500

Wurth Elektronik Transistor Output Optocouplers WL-OCPT 20CTR MIN 400CTR MAX 80V 3750VRMS Phototransistor
Datasheet
5,963In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

Wurth Elektronik Transistor Output Optocouplers WL-OCPT 50CTR MIN 150CTR MAX 80V 3750VRMS Phototransistor
Datasheet
5,745In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

Wurth Elektronik Transistor Output Optocouplers WL-OCPT 80CTR MIN 400CTR MAX 80V 3750VRMS Phototransistor
Datasheet
6,000In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

Wurth Elektronik Transistor Output Optocouplers WL-OCPT 50CTR MIN 600CTR MAX 80V 3750VRMS Phototransistor
Datasheet
5,997In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

Wurth Elektronik Transistor Output Optocouplers WL-OCPT 80CTR MIN 160CTR MAX 80V 3750VRMS Phototransistor
Datasheet
5,890In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

Wurth Elektronik Transistor Output Optocouplers WL-OCPT 130CTR MIN 260CTR MAX 80V 3750VRMS Phototransistor
Datasheet
6,000In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

Wurth Elektronik Transistor Output Optocouplers WL-OCPT 200CTR MIN 400CTR MAX 80V 3750VRMS Phototransistor
Datasheet
6,000In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

Wurth Elektronik Transistor Output Optocouplers WL-OCPT 300CTR MIN 600CTR MAX 80V 3750VRMS Phototransistor
Datasheet
5,950In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

Wurth Elektronik Single Colour LEDs WL-SUTW Wtrclr TopVw 405nm 140mW 3.4V 120
Datasheet
1,426In Stock
4,000Expected 06/03/2026
MouseReel Available
Min.: 1
Mult.: 1
Reel: 4,000

Wurth Elektronik Transistor Output Optocouplers WL-OCPT 35V 5KVrms 10pF LSO 4 V-Type
Datasheet
10,273In Stock
9,000Expected 20/02/2026
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

Wurth Elektronik Single Colour LEDs WL-SMTW Wtrclr TopVw YEl 2.4V 50mA 620nm
Datasheet
5,905In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 2,000

Wurth Elektronik Transistor Output Optocouplers WL-OCPT DIP8 SL VCE=80V VISO=5000VRM
Datasheet
1,247In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1,000

Wurth Elektronik Single Colour LEDs WL-SUTW Wtrclr TopVw 385nm 90mW 3.4V 120D
Datasheet
3,026In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 4,000

Wurth Elektronik Transistor Output Optocouplers WL-OCPT 35V 5KVrms 10pF LSO 4 V-Type
Datasheet
1,087In Stock
6,000Expected 13/03/2026
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

Wurth Elektronik Transistor Output Optocouplers WL-OCPT 35V 5KVrms 10pF LSO 4 V-Type
Datasheet
315In Stock
3,000Expected 20/02/2026
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

Wurth Elektronik Transistor Output Optocouplers WL-OCPT 35V 5KVrms 10pF LSO 4 V-Type
Datasheet
2,026In Stock
3,000Expected 20/02/2026
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

Wurth Elektronik Transistor Output Optocouplers WL-OCPT 35V 3.75KVrm 10pF SOP 4 V-Type
Datasheet
3,720In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

Wurth Elektronik Transistor Output Optocouplers WL-OCPT 80V 3.75KVrm 10pF SOP 4 V-Type
Datasheet
750In Stock
6,000Expected 27/02/2026
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000