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 (CHF) Filter the results in the table by unit price based on your quantity. Qty. RoHS
Wurth Elektronik Single Colour LEDs WL-SUTW Wtrclr TopVw 385nm 90mW 3.4V 120D 2’737In Stock
Min.: 1
Mult.: 1
: 4’000

Wurth Elektronik Transistor Output Optocouplers WL-OCPT 80V 5KVrms 10pF Dip 4 SLM-Type 1’496In Stock
Min.: 1
Mult.: 1
: 1’500

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

Wurth Elektronik Transistor Output Optocouplers WL-OCPT 80V 3.75KVrm 10pF SOP 4 V-Type 4’905In Stock
Min.: 1
Mult.: 1
: 3’000

Wurth Elektronik Transistor Output Optocouplers WL-OCPT 35V 5KVrms 10pF LSO 4 V-Type 6’572In 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 80V 5KVrms 10pF Dip 4 SL-Type 4’273In Stock
Min.: 1
Mult.: 1
: 1’500

Wurth Elektronik Transistor Output Optocouplers WL-OCPT 20CTR MIN 400CTR MAX 80V 3750VRMS Phototransistor 5’953In Stock
Min.: 1
Mult.: 1
: 3’000

Wurth Elektronik Transistor Output Optocouplers WL-OCPT 50CTR MIN 150CTR MAX 80V 3750VRMS Phototransistor 5’705In Stock
Min.: 1
Mult.: 1
: 3’000

Wurth Elektronik Transistor Output Optocouplers WL-OCPT 80CTR MIN 400CTR MAX 80V 3750VRMS Phototransistor 5’767In Stock
Min.: 1
Mult.: 1
: 3’000

Wurth Elektronik Transistor Output Optocouplers WL-OCPT 50CTR MIN 600CTR MAX 80V 3750VRMS Phototransistor 5’755In Stock
Min.: 1
Mult.: 1
: 3’000

Wurth Elektronik Transistor Output Optocouplers WL-OCPT 80CTR MIN 160CTR MAX 80V 3750VRMS Phototransistor 5’770In Stock
Min.: 1
Mult.: 1
: 3’000

Wurth Elektronik Transistor Output Optocouplers WL-OCPT 130CTR MIN 260CTR MAX 80V 3750VRMS Phototransistor 5’869In Stock
Min.: 1
Mult.: 1
: 3’000

Wurth Elektronik Transistor Output Optocouplers WL-OCPT 200CTR MIN 400CTR MAX 80V 3750VRMS Phototransistor 5’995In Stock
Min.: 1
Mult.: 1
: 3’000

Wurth Elektronik Transistor Output Optocouplers WL-OCPT 300CTR MIN 600CTR MAX 80V 3750VRMS Phototransistor 5’632In Stock
Min.: 1
Mult.: 1
: 3’000

Wurth Elektronik Single Colour LEDs WL-SUTW Wtrclr TopVw 365nm 50mW 3.6V 120D 7’253In Stock
Min.: 1
Mult.: 1
: 4’000

Wurth Elektronik Single Colour LEDs WL-SUTW Wtrclr TopVw 395nm 140mW 3.4V 120 1’751In Stock
4’000Expected 8/14/2026
Min.: 1
Mult.: 1
: 4’000

Wurth Elektronik Single Colour LEDs WL-SUTW Wtrclr TopVw 405nm 140mW 3.4V 120 3’808In Stock
Min.: 1
Mult.: 1
: 4’000

Wurth Elektronik Single Colour LEDs WL-SMTW Wtrclr TopVw Grn 3.2V 50mA 520nm 5’943In Stock
6’000Expected 7/31/2026
Min.: 1
Mult.: 1
: 2’000

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

Wurth Elektronik Transistor Output Optocouplers WL-OCPT DIP8 SL VCE=80V VISO=5000VRM 1’092In Stock
Min.: 1
Mult.: 1
: 1’000

Wurth Elektronik Transistor Output Optocouplers WL-OCPT 35V 5KVrms 10pF LSO 4 V-Type 12’771In Stock
15’000Expected 8/7/2026
Min.: 1
Mult.: 1
: 3’000

Wurth Elektronik Transistor Output Optocouplers WL-OCPT 80V 3.75KVrm 10pF SOP 4 V-Type 5’710In Stock
Min.: 1
Mult.: 1
: 3’000

Wurth Elektronik Single Colour LEDs WL-SMTW Wtrclr TopVw Blu 3.2V 50mA 470nm 2’319In Stock
Min.: 1
Mult.: 1
: 2’000

Wurth Elektronik Single Colour LEDs WL-SMTW Wtrclr TopVw Ble 3.2V 50mA 470nm 114In Stock
4’000Expected 8/28/2026
Min.: 1
Mult.: 1
: 2’000