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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Description Datasheet Availability Pricing (EUR) Filter the results in the table by unit price based on your quantity.
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Wurth Elektronik Single Colour LEDs WL-SMTW Wtrclr TopVw YEl 2.4V 50mA 620nm
Datasheet
1,443In Stock
6,000Expected 04/09/2026
MouseReel Available
Min.: 1
Mult.: 1
: 2,000

Wurth Elektronik Single Colour LEDs WL-SMTW Wtrclr TopVw YEl 2.4V 50mA 590nm
Datasheet
1,314In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2,000

Wurth Elektronik Single Colour LEDs WL-SUTW Wtrclr TopVw 365nm 50mW 3.6V 120D
Datasheet
7,006In Stock
8,000Expected 04/09/2026
MouseReel Available
Min.: 1
Mult.: 1
: 4,000

Wurth Elektronik Single Colour LEDs WL-SUTW Wtrclr TopVw 385nm 90mW 3.4V 120D
Datasheet
2,668In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 4,000

Wurth Elektronik Single Colour LEDs WL-SUTW Wtrclr TopVw 395nm 140mW 3.4V 120
Datasheet
1,735In Stock
4,000On Order
MouseReel Available
Min.: 1
Mult.: 1
: 4,000

Wurth Elektronik Single Colour LEDs WL-SUTW Wtrclr TopVw 405nm 140mW 3.4V 120
Datasheet
3,704In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 4,000

Wurth Elektronik Transistor Output Optocouplers WL-OCPT 35V 5KVrms 10pF LSO 4 V-Type
Datasheet
1,419In Stock
3,000Expected 16/10/2026
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

Wurth Elektronik Transistor Output Optocouplers WL-OCPT 35V 5KVrms 10pF LSO 4 V-Type
Datasheet
3,221In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

Wurth Elektronik Transistor Output Optocouplers WL-OCPT 35V 5KVrms 10pF LSO 4 V-Type
Datasheet
3,819In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

Wurth Elektronik Transistor Output Optocouplers WL-OCPT 35V 5KVrms 10pF LSO 4 V-Type
Datasheet
4,086In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

Wurth Elektronik Transistor Output Optocouplers WL-OCPT 80V 3.75KVrm 10pF SOP 4 V-Type
Datasheet
5,490In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

Wurth Elektronik Transistor Output Optocouplers WL-OCPT 80V 3.75KVrm 10pF SOP 4 V-Type
Datasheet
4,088In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

Wurth Elektronik Transistor Output Optocouplers WL-OCPT 80V 3.75KVrm 10pF SOP 4 V-Type
Datasheet
2,212In Stock
3,000Expected 28/08/2026
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

Wurth Elektronik Transistor Output Optocouplers WL-OCPT 35V 3.75KVrm 10pF SOP 4 V-Type
Datasheet
2,826In Stock
3,000Expected 11/09/2026
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

Wurth Elektronik Transistor Output Optocouplers WL-OCPT 35V 3.75KVrm 10pF SOP 4 V-Type
Datasheet
3,082In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

Wurth Elektronik Transistor Output Optocouplers WL-OCPT 35V 3.75KVrm 10pF SOP 4 V-Type
Datasheet
773In Stock
3,000On Order
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

Wurth Elektronik Transistor Output Optocouplers WL-OCPT 35V 3.75KVrm 10pF SOP 4 V-Type
Datasheet
2,534In Stock
3,000Expected 13/11/2026
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

Wurth Elektronik Transistor Output Optocouplers WL-OCPT 35V 3.75KVrm 10pF SOP 4 V-Type
Datasheet
4,369In Stock
6,000Expected 28/08/2026
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

Wurth Elektronik Transistor Output Optocouplers WL-OCPT 80V 5KVrms 10pF Dip 4 Standard
Datasheet
190In Stock
Min.: 1
Mult.: 1

Wurth Elektronik Transistor Output Optocouplers WL-OCPT 80V 5KVrms 10pF Dip 4 M-Type
Datasheet
141In Stock
Min.: 1
Mult.: 1

Wurth Elektronik Transistor Output Optocouplers WL-OCPT 80V 5KVrms 10pF Dip 4 SL-Type
Datasheet
1,034In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1,500

Wurth Elektronik Transistor Output Optocouplers WL-OCPT 80V 5KVrms 10pF Dip 4 Standard
Datasheet
144In Stock
Min.: 1
Mult.: 1

Wurth Elektronik Transistor Output Optocouplers WL-OCPT 80V 5KVrms 10pF Dip 4 Standard
Datasheet
158In Stock
Min.: 1
Mult.: 1

Wurth Elektronik Transistor Output Optocouplers WL-OCPT 80V 5KVrms 10pF Dip 4 Standard
Datasheet
459In Stock
500Expected 28/08/2026
Min.: 1
Mult.: 1

Wurth Elektronik Transistor Output Optocouplers WL-OCPT 80V 5KVrms 10pF Dip 4 M-Type
Datasheet
149In Stock
Min.: 1
Mult.: 1