Optocouplers for AC/DC Power Supplies

Isolation is critical to protect both an electronics system and the user from potentially hazardous voltages, or where a high level of electrical isolation between electronics systems is necessary. Digital isolators are known for their speed of data transmission, high level of magnetic immunity, and long life expectancy.

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Results: 249
Select Image Part # Mfr. Description Datasheet Availability Pricing (IDR) Filter the results in the table by unit price based on your quantity. Qty. RoHS Vr - Reverse Voltage Rise Time Maximum Collector Current Mounting Style Package/Case Number of Channels Output Type
onsemi Transistor Output Optocouplers Phototransistor Output 54In Stock
Min.: 1
Mult.: 1
: 2.000

5 V 4 us 50 mA Through Hole PDIP-4 1 Channel NPN Phototransistor
onsemi Transistor Output Optocouplers Opto Phototransistor Output SM-DIP4 2.753In Stock
Min.: 1
Mult.: 1

5 V 4 us 50 mA SMD/SMT SMD-4 1 Channel NPN Phototransistor
onsemi Transistor Output Optocouplers Phototransistor Output 3.105In Stock
Min.: 1
Mult.: 1

6 V 18 us 50 mA Through Hole PDIP-4 1 Channel NPN Phototransistor
onsemi Transistor Output Optocouplers TRANSISTOR OUTPUT SMD LEAD BEND 4.007In Stock
Min.: 1
Mult.: 1
Max.: 2.000

6 V 18 us 50 mA SMD/SMT SMD-4 1 Channel NPN Phototransistor
onsemi Transistor Output Optocouplers 4PN DIP Photo Xstr Output Optocoupler 11.165In Stock
Min.: 1
Mult.: 1
Max.: 2.000

6 V 18 us 50 mA SMD/SMT SMD-4 1 Channel NPN Phototransistor
onsemi Transistor Output Optocouplers OPTO LIGHTING 1.406In Stock
2.000Expected 23/10/2026
Min.: 1
Mult.: 1
Max.: 210

6 V 300 us 150 mA SMD/SMT SMT-4 1 Channel Photodarlington
onsemi Transistor Output Optocouplers Phototrans Ouput MFP Input 1.302In Stock
25.000Expected 06/10/2026
Min.: 1
Mult.: 1
Max.: 400
: 2.500

6 V 3 us 80 mA SMD/SMT SMD-4 1 Channel NPN Phototransistor
onsemi Transistor Output Optocouplers Full pitch MFP PhotoTrans Ouput 8In Stock
3.000Expected 06/10/2026
Min.: 1
Mult.: 1

6 V 3 us 80 mA SMD/SMT SMD-4 1 Channel NPN Phototransistor
onsemi Transistor Output Optocouplers Phototransistor Output Optocoupler 4.810In Stock
6.000Expected 19/01/2028
Min.: 1
Mult.: 1
Max.: 440

6 V 3 us 80 mA SMD/SMT SMD-4 1 Channel NPN Phototransistor
onsemi Transistor Output Optocouplers Phototransistor Output Optocoupler 3.708In Stock
15.000On Order
Min.: 1
Mult.: 1
Max.: 2.500
: 2.500

6 V 3 us 80 mA SMD/SMT SMD-4 1 Channel NPN Phototransistor
onsemi Transistor Output Optocouplers Phototransistor Output Optocoupler 447In Stock
24.000On Order
Min.: 1
Mult.: 1
Max.: 3.000

6 V 3 us 80 mA SMD/SMT SMD-4 1 Channel NPN Phototransistor
onsemi Transistor Output Optocouplers Optocoupler Phototransistor 3.389In Stock
3.000Expected 02/09/2026
Min.: 1
Mult.: 1
Max.: 1.000

6 V SMD/SMT SMD-DIP-6 1 Channel NPN Phototransistor
onsemi Transistor Output Optocouplers Optocoupler Phototransistor 1.618In Stock
Min.: 1
Mult.: 1

6 V Through Hole PDIP-6 1 Channel NPN Phototransistor
onsemi Transistor Output Optocouplers Optocoupler Phototransistor 486In Stock
Min.: 1
Mult.: 1
Max.: 1.000

6 V Through Hole PDIP-6 1 Channel NPN Phototransistor
onsemi Transistor Output Optocouplers LC Phototransistor 766In Stock
Min.: 1
Mult.: 1

6 V 50 mA SMD/SMT SMD-DIP-6 1 Channel NPN Phototransistor
onsemi Transistor Output Optocouplers 0.4" Optocoupler Phototransistor 779In Stock
Min.: 1
Mult.: 1

6 V Through Hole PDIP-6 1 Channel NPN Phototransistor
onsemi Transistor Output Optocouplers Photodarlington 146In Stock
1.000Expected 27/10/2026
Min.: 1
Mult.: 1

3 V 150 mA SMD/SMT PDIP-6 Gull Wing 1 Channel Photodarlington
onsemi Transistor Output Optocouplers Hi Volt Phototrans 200In Stock
900Expected 02/09/2026
Min.: 1
Mult.: 1
Max.: 210

6 V 100 mA Through Hole PDIP-6 1 Channel NPN Phototransistor
onsemi MOSFET Output Optocouplers ANALOG FET 1.399In Stock
Min.: 1
Mult.: 1
Max.: 120

5 V SMD/SMT SMD-6 Gull Wing 1 Channel Photo MOSFET
onsemi MOSFET Output Optocouplers ANALOG FET 964In Stock
Min.: 1
Mult.: 1

5 V SMD/SMT SMD-6 Gull Wing 1 Channel Photo MOSFET
onsemi Transistor Output Optocouplers Hi Volt Photodarling 275In Stock
4.000Expected 08/12/2026
Min.: 1
Mult.: 1
Max.: 200

6 V Through Hole PDIP-6 1 Channel Photodarlington
onsemi Transistor Output Optocouplers Hi Volt Photodarling 1.852In Stock
Min.: 1
Mult.: 1
Max.: 190

6 V SMD/SMT SMD-DIP-6 1 Channel Photodarlington
onsemi Transistor Output Optocouplers 4-Pin Half-Pitch Mini-Flat Phototransistor Optocouplers 2.421In Stock
3.000Expected 13/10/2026
Min.: 1
Mult.: 1
Max.: 320

6 V 3 us 50 mA SMD/SMT SMD-4 1 Channel NPN Phototransistor
onsemi Transistor Output Optocouplers DIP-8 DUAL PH TRANS 4.047In Stock
1.000Expected 13/10/2026
Min.: 1
Mult.: 1
Max.: 1.000

25 V 2.4 us 30 mA Through Hole PDIP-8 2 Channel NPN Phototransistor
onsemi Transistor Output Optocouplers SO-8 DUAL PH TRAN 260In Stock
Min.: 1
Mult.: 1

25 V 2.4 us 30 mA SMD/SMT SMD-DIP-8 2 Channel NPN Phototransistor