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 (CRC) 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 Opto Phototransistor Output SM-DIP4 13 953In Stock
8 000Expected 8/19/2026
Min.: 1
Mult.: 1
Max.: 630

6 V 18 us 50 mA SMD/SMT SMD-4 1 Channel NPN Phototransistor
onsemi Transistor Output Optocouplers Opto Phototransistor Output SM-DIP4 23 091In Stock
32 000Expected 9/8/2026
Min.: 1
Mult.: 1
Max.: 1 410
: 1 000

6 V 18 us 50 mA SMD/SMT SMD-4 1 Channel NPN Phototransistor
onsemi Transistor Output Optocouplers Phototransistor Output 23 101In Stock
Min.: 1
Mult.: 1
Max.: 690
: 1 000

6 V 18 us 50 mA SMD/SMT SMD-4 1 Channel NPN Phototransistor
onsemi Transistor Output Optocouplers Phototransistor Output 19 765In Stock
Min.: 1
Mult.: 1
Max.: 1 000
: 1 000

6 V 18 us 50 mA SMD/SMT SMD-4 1 Channel NPN Phototransistor
onsemi Transistor Output Optocouplers OPTO LIGHTING 7 220In Stock
Min.: 1
Mult.: 1
Max.: 260

6 V 300 us 150 mA Through Hole DIP-4 1 Channel Photodarlington
onsemi Transistor Output Optocouplers OPTO LIGHTING 4 301In Stock
Min.: 1
Mult.: 1
Max.: 210

6 V 300 us 150 mA Through Hole DIP-4 1 Channel Photodarlington
onsemi Transistor Output Optocouplers OPTO LIGHTING 16 627In Stock
13 000Expected 10/26/2026
Min.: 1
Mult.: 1
Max.: 2 000
: 1 000

6 V 300 us 150 mA SMD/SMT SMT-4 1 Channel Photodarlington
onsemi Transistor Output Optocouplers 4Pin DIP Photo Darl Optocoupler 7 292In Stock
18 000On Order
Min.: 1
Mult.: 1
Max.: 1 250
: 1 000

6 V 300 us 150 mA SMD/SMT SMT-4 1 Channel Photodarlington
onsemi Transistor Output Optocouplers Optocoupler Phototransistor 10 927In Stock
Min.: 1
Mult.: 1
Max.: 410

6 V Through Hole PDIP-6 1 Channel NPN Phototransistor
onsemi Transistor Output Optocouplers Hi Volt Photodarling 5 783In Stock
Min.: 1
Mult.: 1
Max.: 420
: 1 000

6 V SMD/SMT PDIP-6 Gull Wing 1 Channel Photodarlington
onsemi Transistor Output Optocouplers 4-Pin Half-Pitch Mini-Flat Phototransistor Optocouplers 24 393In Stock
Min.: 1
Mult.: 1
Max.: 5 000
: 2 500

6 V 3 us 50 mA SMD/SMT SMD-4 1 Channel NPN Phototransistor
onsemi Transistor Output Optocouplers Optocoupler Phototransistor 12 242In Stock
Min.: 1
Mult.: 1
Max.: 360

6 V Through Hole PDIP-6 1 Channel NPN Phototransistor
onsemi Transistor Output Optocouplers DIP-8 DUAL PH TRANS 11 615In Stock
8 000Expected 9/8/2026
Min.: 1
Mult.: 1
Max.: 430

25 V 2.4 us 30 mA Through Hole PDIP-8 2 Channel NPN Phototransistor
onsemi Transistor Output Optocouplers SO-8 DUAL PH TRAN 12 470In Stock
Min.: 1
Mult.: 1
Max.: 1 000

25 V 2.4 us 30 mA SMD/SMT PDIP-8 Gull Wing 2 Channel NPN Phototransistor
onsemi Transistor Output Optocouplers 8-Pin Optocoupler Dual Ch Phototrans 12 755In Stock
12 000Expected 10/13/2026
Min.: 1
Mult.: 1
Max.: 3 000
: 1 000

25 V 2.4 us 30 mA SMD/SMT PDIP-8 Gull Wing 2 Channel NPN Phototransistor
onsemi Transistor Output Optocouplers SO-8 PHOTO TRANS 34 099In Stock
Min.: 1
Mult.: 1
Max.: 1 200

6 V 3.2 us 150 mA SMD/SMT SOIC-Narrow-8 1 Channel NPN Phototransistor
onsemi Transistor Output Optocouplers 8-Pin Optocoupler Phototransistor 14 508In Stock
12 500Expected 3/19/2027
Min.: 1
Mult.: 1
Max.: 1 590
: 2 500

6 V 3.2 us 150 mA SMD/SMT SOIC-Narrow-8 1 Channel NPN Phototransistor
onsemi Transistor Output Optocouplers 8-Pin Optocoupler Phototransistor 7 726In Stock
Min.: 1
Mult.: 1
: 2 500

6 V 3.2 us 150 mA SMD/SMT SOIC-Narrow-8 1 Channel NPN Phototransistor
onsemi Transistor Output Optocouplers Hi Volt Phototrans 18 000In Stock
Min.: 1
Mult.: 1

6 V 100 mA Through Hole PDIP-6 1 Channel NPN Phototransistor
onsemi Transistor Output Optocouplers SO-8 DUAL CH PHOTO 6 976In Stock
6 000On Order
Min.: 1
Mult.: 1
Max.: 990

6 V 3.2 us 150 mA SMD/SMT SOIC-Narrow-8 2 Channel NPN Phototransistor
onsemi Transistor Output Optocouplers SO-8 DUAL CH PHOTO 5 644In Stock
6 000Expected 1/5/2027
Min.: 1
Mult.: 1
Max.: 300

6 V 3.2 us 150 mA SMD/SMT SOIC-Narrow-8 2 Channel NPN Phototransistor
onsemi Transistor Output Optocouplers SO-8 DUAL CHAN OPTOC 16 121In Stock
15 000Expected 8/25/2026
Min.: 1
Mult.: 1
Max.: 1 490
: 2 500

6 V 3.2 us 150 mA SMD/SMT SOIC-Narrow-8 2 Channel NPN Phototransistor
onsemi Transistor Output Optocouplers SO-8 DUAL CH PHOTO 14 311In Stock
12 000Expected 1/22/2027
Min.: 1
Mult.: 1
Max.: 460

6 V 3.2 us 150 mA SMD/SMT SOIC-Narrow-8 2 Channel NPN Phototransistor
onsemi Transistor Output Optocouplers SO-8 DUAL CH PHOTO 12 684In Stock
Min.: 1
Mult.: 1
Max.: 320

6 V 8 us 150 mA SMD/SMT SOIC-Narrow-8 2 Channel Photodarlington
Broadcom / Avago Transistor Output Optocouplers 3000Vrms 50% CTR 23 270In Stock
Min.: 1
Mult.: 1
: 3 000

6 V 2 us 50 mA SMD/SMT SOIC-4 1 Channel NPN Phototransistor