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 3,208In Stock
Min.: 1
Mult.: 1
: 4,000

Wurth Elektronik Transistor Output Optocouplers WL-OCPT 35V 5KVrms 10pF Dip 4 M-Type 25In Stock
Min.: 1
Mult.: 1

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

Wurth Elektronik Transistor Output Optocouplers WL-OCPT 80V 3.75KVrm 10pF SOP 4 V-Type 4,971In Stock
Min.: 1
Mult.: 1
: 3,000

Wurth Elektronik Transistor Output Optocouplers WL-OCPT 80V 3.75KVrm 10pF SOP 4 V-Type 3,348In Stock
Min.: 1
Mult.: 1
: 3,000

Wurth Elektronik Transistor Output Optocouplers WL-OCPT 80V 5KVrms 10pF Dip 4 SL-Type 5,837In Stock
Min.: 1
Mult.: 1
: 1,500

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

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

Wurth Elektronik Transistor Output Optocouplers WL-OCPT 80CTR MIN 400CTR MAX 80V 3750VRMS Phototransistor 5,952In Stock
Min.: 1
Mult.: 1
: 3,000

Wurth Elektronik Transistor Output Optocouplers WL-OCPT 50CTR MIN 600CTR MAX 80V 3750VRMS Phototransistor 5,855In Stock
Min.: 1
Mult.: 1
: 3,000

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

Wurth Elektronik Transistor Output Optocouplers WL-OCPT 130CTR MIN 260CTR MAX 80V 3750VRMS Phototransistor 5,990In Stock
Min.: 1
Mult.: 1
: 3,000

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

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

Wurth Elektronik Single Colour LEDs WL-SUTW Wtrclr TopVw 405nm 140mW 3.4V 120 4,792In Stock
Min.: 1
Mult.: 1
: 4,000

Wurth Elektronik Single Colour LEDs WL-SUTW Wtrclr TopVw 365nm 50mW 3.6V 120D 810In Stock
8,000Expected 24/04/2026
Min.: 1
Mult.: 1
: 4,000

Wurth Elektronik Single Colour LEDs WL-SUTW Wtrclr TopVw 385nm 90mW 3.4V 120D 2,821In Stock
Min.: 1
Mult.: 1
: 4,000

Wurth Elektronik Transistor Output Optocouplers WL-OCPT DIP8 SL VCE=80V VISO=5000VRM 1,115In Stock
Min.: 1
Mult.: 1
: 1,000

Wurth Elektronik Transistor Output Optocouplers WL-OCPT 35V 5KVrms 10pF LSO 4 V-Type 14,783In Stock
Min.: 1
Mult.: 1
: 3,000

Wurth Elektronik Transistor Output Optocouplers WL-OCPT 80V 3.75KVrm 10pF SOP 4 V-Type 6,080In Stock
Min.: 1
Mult.: 1
: 3,000

Wurth Elektronik Single Colour LEDs WL-SMTW Wtrclr TopVw Blu 3.2V 50mA 470nm 579In Stock
Min.: 1
Mult.: 1
: 2,000

Wurth Elektronik Single Colour LEDs WL-SMTW Wtrclr TopVw Grn 3.2V 50mA 520nm 64In Stock
4,000Expected 08/05/2026
Min.: 1
Mult.: 1
: 2,000

Wurth Elektronik Single Colour LEDs WL-SMTW Wtrclr TopVw RED 2.4V 50mA 620nm 468In Stock
2,000Expected 15/05/2026
Min.: 1
Mult.: 1
: 2,000

Wurth Elektronik Single Colour LEDs WL-SMTW Wtrclr TopVw YEl 2.4V 50mA 620nm 3,763In Stock
Min.: 1
Mult.: 1
: 2,000

Wurth Elektronik Single Colour LEDs WL-SMTW Wtrclr TopVw YEl 2.4V 50mA 590nm 1,614In Stock
Min.: 1
Mult.: 1
: 2,000