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 (GBP) 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
Vishay Semiconductors Transistor Output Optocouplers PHOTOTRANSISTOR OUT CTR 50-150%
Datasheet
4,484In Stock
8,000On Order
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 100-200%
Datasheet
2,923In Stock
31,500On Order
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 50-300%
Datasheet
2,800In Stock
18,400On Order
MouseReel Available
Min.: 1
Mult.: 1
: 800

5 V 2.4 us 50 mA SMD/SMT SMD-4 1 Channel NPN Phototransistor

Vishay Semiconductors Transistor Output Optocouplers Phototransistor Out Dual CTR >100%
Datasheet
21,428In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2,000

6 V 3 us 2.5 mA SMD/SMT SOIC-8 2 Channel NPN Phototransistor
Vishay Semiconductors Transistor Output Optocouplers Phototransistor Out Dual CTR >100%
Datasheet
2,481In Stock
Min.: 1
Mult.: 1

6 V 2 us 100 mA Through Hole PDIP-8 2 Channel NPN Phototransistor
Vishay Semiconductors Transistor Output Optocouplers Phototransistor Out Single CTR 63-125%
Datasheet
11,216In Stock
Min.: 1
Mult.: 1

6 V 3.5 us 100 mA Through Hole SMD-4 1 Channel NPN Phototransistor
Vishay Semiconductors Transistor Output Optocouplers Phototransistor Out Single CTR 250-500%
Datasheet
4,920In Stock
Min.: 1
Mult.: 1

6 V 3.5 us 100 mA Through Hole DIP-4 1 Channel NPN Phototransistor
Vishay Semiconductors Transistor Output Optocouplers Phototransistor Out
Datasheet
Product Comments
39,970In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

6 V 3 us 50 mA SMD/SMT SOP-4 1 Channel NPN Phototransistor
Vishay Semiconductors Transistor Output Optocouplers Photodarlington Out Single CTR >600%
Datasheet
21,343In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

6 V 300 us 80 mA SMD/SMT SOP-4 1 Channel Photodarlington
Vishay Semiconductors Transistor Output Optocouplers Photodarlington Out Quad CTR >600%
Datasheet
4,459In Stock
18,000Expected 25/12/2026
MouseReel Available
Min.: 1
Mult.: 1
: 2,000

6 V 300 us 80 mA SMD/SMT SOP-16 4 Channel Photodarlington
Vishay Semiconductors Transistor Output Optocouplers Phototransistor Out
Datasheet
20,283In Stock
39,000Expected 12/03/2027
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

6 V 5.5 us 50 mA SMD/SMT SOP-4 1 Channel NPN Phototransistor
onsemi Transistor Output Optocouplers Optocoupler Phototrans No Base
Datasheet
1,092In Stock
Min.: 1
Mult.: 1

6 V 4 us 50 mA Through Hole PDIP-6 1 Channel NPN Phototransistor
onsemi Transistor Output Optocouplers Optocoupler Phototrans No Base
Datasheet
1,990In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1,000

6 V 6 us 50 mA SMD/SMT PDIP-6 Gull Wing 1 Channel NPN Phototransistor
onsemi Transistor Output Optocouplers 4-Pin Half-Pitch Mini-Flat Phototransistor Optocouplers
Datasheet
2,042In Stock
6,000Expected 13/10/2026
Min.: 1
Mult.: 1
Max.: 1,500

6 V 3 us 50 mA SMD/SMT SMD-4 1 Channel NPN Phototransistor
onsemi Transistor Output Optocouplers 4-Pin Half-Pitch Mini-Flat Phototransistor Optocouplers
Datasheet
3,059In Stock
2,500Expected 18/09/2026
MouseReel Available
Min.: 1
Mult.: 1
: 2,500

6 V 3 us 50 mA SMD/SMT SMD-4 1 Channel NPN Phototransistor
Vishay Semiconductors Transistor Output Optocouplers Phototransistor Out
Datasheet
630In 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 50-600%
Datasheet
5,613In Stock
Min.: 1
Mult.: 1

6 V 4.6 us 50 mA Through Hole DIP-4 1 Channel NPN Phototransistor
Vishay Semiconductors Transistor Output Optocouplers Phototransistor Out CTR 50-600%
Datasheet
5,326In Stock
Min.: 1
Mult.: 1

6 V 3 us 50 mA Through Hole DIP-4 1 Channel NPN Phototransistor
Vishay Semiconductors Transistor Output Optocouplers RECOMMENDED ALT SFH6
Datasheet
4,820In Stock
12,000Expected 21/10/2026
Min.: 1
Mult.: 1

6 V 3 us 50 mA Through Hole DIP-4 1 Channel NPN Phototransistor
Vishay Semiconductors Transistor Output Optocouplers Phototransistor Out Single CTR>20%
Datasheet
Product Comments
760In Stock
Min.: 1
Mult.: 1

6 V 2 us 50 mA SMD/SMT SMD-6 1 Channel NPN Phototransistor
Vishay Semiconductors Transistor Output Optocouplers Phototransistor Out
Datasheet
Product Comments
1,833In Stock
Min.: 1
Mult.: 1

6 V 100 mA Through Hole DIP-6 1 Channel NPN Phototransistor
Vishay Semiconductors Transistor Output Optocouplers NPN Phototransistor
Datasheet
Product Comments
299In Stock
2,000On Order
Min.: 1
Mult.: 1

6 V 2 us 100 mA Through Hole DIP-6 1 Channel NPN Phototransistor
Vishay Semiconductors Transistor Output Optocouplers Phototransistor Out Single CTR 40-80%
Datasheet
Product Comments
1,861In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1,000

6 V 2 us 100 mA SMD/SMT SMD-6 1 Channel NPN Phototransistor
Vishay Semiconductors Transistor Output Optocouplers NPN Phototransistor
Datasheet
Product Comments
2,587In Stock
Min.: 1
Mult.: 1

6 V 2 us 100 mA Through Hole DIP-6 1 Channel NPN Phototransistor
Vishay Semiconductors Transistor Output Optocouplers Phototransistor Out Single CTR 63-125%
Datasheet
Product Comments
1,847In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1,000

6 V 2 us 100 mA SMD/SMT SMD-6 1 Channel NPN Phototransistor