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
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Description Datasheet Availability Pricing (CHF) 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 Optically Isolated Amplifiers Isolated Error Amp Optocoupler
Datasheet
1’937In Stock
Min.: 1
Mult.: 1

50 mA Through Hole PDIP-8 1 Channel Phototransistor
onsemi Transistor Output Optocouplers Phototransistor
Datasheet
2’142In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1’000

6 V 100 mA SMD/SMT SMD-DIP-6 1 Channel NPN Phototransistor
Vishay Semiconductors Transistor Output Optocouplers Phototransistor Out Single CTR 63-125%
Datasheet
Product Comments
4’423In Stock
Min.: 1
Mult.: 1

6 V 2 us 50 mA Through Hole PDIP-6 1 Channel NPN Phototransistor
onsemi Transistor Output Optocouplers SO-8 PHOTO TRANS
Datasheet
3’992In Stock
Min.: 1
Mult.: 1
Max.: 320

6 V 3.2 us 150 mA SMD/SMT SOIC-Narrow-8 1 Channel NPN Phototransistor
onsemi Transistor Output Optocouplers SO-8 PHOTO TRANS
Datasheet
4’051In Stock
Min.: 1
Mult.: 1

6 V 3.2 us 150 mA SMD/SMT SOIC-Narrow-8 1 Channel NPN Phototransistor
Vishay Semiconductors Transistor Output Optocouplers Phototransistor Out Single CTR>100%
Datasheet
Product Comments
3’422In Stock
Min.: 1
Mult.: 1

6 V 50 mA SMD/SMT SMD-6 1 Channel NPN Phototransistor
Vishay Semiconductors Transistor Output Optocouplers Phototransistor Out Dual CTR 40-80%
Datasheet
38’714In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2’000

6 V 3 us 2.5 mA SMD/SMT SOIC-8 2 Channel NPN Phototransistor
onsemi Transistor Output Optocouplers SO-8 DUAL CH PHOTO
Datasheet
65’859In Stock
Min.: 1
Mult.: 1
Max.: 440

6 V 3.2 us 150 mA SMD/SMT SOIC-Narrow-8 2 Channel NPN Phototransistor
Broadcom / Avago Transistor Output Optocouplers Phototx Coupler Quad
Datasheet
47’549In Stock
46’000Expected 12/15/2026
MouseReel Available
Min.: 1
Mult.: 1
: 2’000

6 V 2 us 50 mA SMD/SMT SO-16 4 Channel NPN Phototransistor
Vishay Semiconductors Transistor Output Optocouplers PHOTOTRANSISTOR OUT CTR 50-150%
Datasheet
1’936In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 800

5 V 2.4 us 50 mA SMD/SMT DIP-4 1 Channel NPN Phototransistor
Vishay Semiconductors Transistor Output Optocouplers Phototransistor Out Single CTR 63-125%
Datasheet
9’925In Stock
Min.: 1
Mult.: 1

5 V 2.4 us 50 mA Through Hole DIP-4 1 Channel NPN Phototransistor
Vishay Semiconductors Transistor Output Optocouplers PHOTOTRANSISTOR OUT CTR 50-150%
Datasheet
4’594In Stock
8’000Expected 9/25/2026
MouseReel Available
Min.: 1
Mult.: 1
: 800

5 V 2.4 us 50 mA SMD/SMT DIP-4 1 Channel NPN Phototransistor
Vishay Semiconductors Transistor Output Optocouplers Phototransistor Out Single CTR 50-300%
Datasheet
3’739In Stock
Min.: 1
Mult.: 1

5 V 2.4 us 50 mA Through Hole DIP-4 1 Channel NPN Phototransistor

Vishay Semiconductors Transistor Output Optocouplers Phototransistor Out Single CTR 100-200%
Datasheet
10’672In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2’000

6 V 100 mA SMD/SMT SOIC-Narrow-8 1 Channel NPN Phototransistor

Vishay Semiconductors Transistor Output Optocouplers Photodarlington Out Single CTR >500%
Datasheet
3’737In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2’000

6 V 100 mA SMD/SMT SOIC-Narrow-8 1 Channel Photodarlington
Vishay Semiconductors Transistor Output Optocouplers Phototransistor Out Single CTR>100-200%
Datasheet
3’379In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1’000

6 V 50 mA SMD/SMT PDIP-6 Gull Wing 1 Channel NPN Phototransistor
Vishay Semiconductors Transistor Output Optocouplers RECOMMENDED ALT VO61
Datasheet
7’259In Stock
Min.: 1
Mult.: 1

6 V 3 us 100 mA Through Hole DIP-4 1 Channel NPN Phototransistor
Vishay Semiconductors Transistor Output Optocouplers Phototransistor Out Single CTR 160-320%
Datasheet
5’988In Stock
Min.: 1
Mult.: 1

6 V 4 us 100 mA Through Hole DIP-4 1 Channel NPN Phototransistor
Vishay Semiconductors Transistor Output Optocouplers RECOMMENDED ALT VO61
Datasheet
Product Comments
5’370In Stock
Min.: 1
Mult.: 1

6 V 2 us 50 mA Through Hole PDIP-4 1 Channel NPN Phototransistor
Vishay Semiconductors Transistor Output Optocouplers Phototransistor Out Single CTR 250-500%
Datasheet
8’585In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1’000

6 V 3.5 us 100 mA SMD/SMT SMD-4 1 Channel NPN Phototransistor
Vishay Semiconductors Transistor Output Optocouplers Phototransistor Out Quad CTR 50-300%
Datasheet
5’711In Stock
Min.: 1
Mult.: 1

6 V 5.5 us 100 mA SMD/SMT SSOP-16 4 Channel NPN Phototransistor
Vishay Semiconductors Transistor Output Optocouplers Phototransistor Out Single CTR 200-400%
Datasheet
Product Comments
6’823In Stock
9’000Expected 8/18/2026
MouseReel Available
Min.: 1
Mult.: 1
: 3’000

6 V 3 us 50 mA SMD/SMT SOP-4 1 Channel NPN Phototransistor
onsemi Optically Isolated Amplifiers Error amplifier Optocoupler
Datasheet
4’153In Stock
Min.: 1
Mult.: 1

50 mA SMD/SMT SOIC-8 1 Channel NPN Phototransistor
onsemi Transistor Output Optocouplers PHOTO DARL
Datasheet
14’330In Stock
MouseReel Available
Min.: 1
Mult.: 1
Max.: 1’350
: 1’000

3 V 150 mA SMD/SMT SMD-DIP-6 1 Channel Photodarlington
onsemi Transistor Output Optocouplers Optocoupler Phototransistor
Datasheet
6’645In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1’000

6 V SMD/SMT SMD-DIP-6 1 Channel NPN Phototransistor