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 (SGD) 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 Dual CTR 100-200%
Datasheet
2,353In Stock
Min.: 1
Mult.: 1

5 V 2 us 100 mA Through Hole PDIP-6 1 Channel NPN Phototransistor
Vishay Semiconductors Transistor Output Optocouplers PHOTOTRANSISTOR OUT CTR 50-300%
Datasheet
851In Stock
4,000Expected 28/8/2026
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 CTR 50-300%
Datasheet
604In 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 Single CTR >50%
Datasheet
3,763In Stock
Min.: 1
Mult.: 1

5 V 7 us 50 mA Through Hole DIP-6 1 Channel NPN Phototransistor
Vishay Semiconductors Transistor Output Optocouplers HV Phototransistor
Datasheet
1,071In Stock
Min.: 1
Mult.: 1

6 V 50 mA Through Hole DIP-6 1 Channel NPN Phototransistor
Vishay Semiconductors Transistor Output Optocouplers Phototransistor Out Single CTR 63-125%
Datasheet
409In Stock
4,000Expected 22/9/2026
Min.: 1
Mult.: 1

6 V 3 us 100 mA SMD/SMT SMD-4 1 Channel NPN Phototransistor
Vishay Semiconductors Transistor Output Optocouplers Phototransistor Out Single CTR 160-320%
Datasheet
4,239In Stock
Min.: 1
Mult.: 1

6 V 4 us 100 mA SMD/SMT SMD-4 1 Channel NPN Phototransistor
Vishay Semiconductors Transistor Output Optocouplers RECOMMENDED ALT VO61
Datasheet
Product Comments
4,730In 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 VO61
Datasheet
1,870In Stock
Min.: 1
Mult.: 1

6 V 3 us 100 mA Through Hole PDIP-4 1 Channel NPN Phototransistor
Vishay Semiconductors Transistor Output Optocouplers Phototransistor Out Single CTR > 40-80%
Datasheet
2,899In Stock
Min.: 1
Mult.: 1

5 V 7 us 50 mA Through Hole PDIP-6 1 Channel NPN Phototransistor
Vishay Semiconductors Transistor Output Optocouplers Phototransistor Out Single CTR > 40%
Datasheet
1,546In Stock
Min.: 1
Mult.: 1

5 V 3 us 50 mA Through Hole PDIP-6 1 Channel NPN Phototransistor
Vishay Semiconductors Transistor Output Optocouplers Phototransistor Out
Datasheet
1,463In Stock
Min.: 1
Mult.: 1

6 V 3 us 50 mA Through Hole PDIP-4 1 Channel NPN Phototransistor
Vishay Semiconductors Transistor Output Optocouplers Phototransistor Out Single CTR 50-600%
Datasheet
778In Stock
Min.: 1
Mult.: 1

6 V 3 us 50 mA Through Hole PDIP-4 1 Channel NPN Phototransistor
Vishay Semiconductors Transistor Output Optocouplers Phototransistor Out Single CTR 40-80%
Datasheet
1,936In Stock
Min.: 1
Mult.: 1

6 V 3 us 50 mA Through Hole PDIP-4 1 Channel NPN Phototransistor
Vishay Semiconductors Transistor Output Optocouplers Phototransistor Out Single CTR 100-200%
Datasheet
691In Stock
4,000Expected 6/11/2026
Min.: 1
Mult.: 1

6 V 3 us 50 mA Through Hole PDIP-4 1 Channel NPN Phototransistor
Vishay Semiconductors Transistor Output Optocouplers Phototransistor Out
Datasheet
Product Comments
637In Stock
12,000Expected 14/5/2027
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 Phototransistor Out Single CTR 50-600%
Datasheet
2,341In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

6 V 3 us 50 mA SMD/SMT SOP-5 1 Channel NPN Phototransistor
Vishay Semiconductors Transistor Output Optocouplers Phototransistor Out
Datasheet
176In Stock
60,000On Order
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

6 V 5.5 us 50 mA SMD/SMT SOP-4 1 Channel NPN Phototransistor
Vishay Semiconductors Transistor Output Optocouplers Phototransistor Out
Datasheet
2,811In Stock
21,000Expected 9/10/2026
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

6 V 5.5 us 50 mA SMD/SMT SOP-4 1 Channel NPN Phototransistor
onsemi Optically Isolated Amplifiers Error amplifier Optocoupler
Datasheet
37In Stock
4,000On Order
MouseReel Available
Min.: 1
Mult.: 1
: 1,000

50 mA SMD/SMT SMD-DIP-8 1 Channel Phototransistor
onsemi Transistor Output Optocouplers 8-Pin Optocoupler 2Ch Phototransistor
Datasheet
75,804On Order
MouseReel Available
Min.: 1
Mult.: 1
Max.: 2,500
: 2,500

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
20,000On Order
MouseReel Available
Min.: 1
Mult.: 1
: 2,000

6 V 2 us 50 mA SMD/SMT SOIC-16 4 Channel NPN Phototransistor
Vishay Semiconductors Transistor Output Optocouplers Phototransistor Out
Datasheet
Product Comments
175,774On Order
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 Phototransistor Out Single CTR>100-200%
Datasheet
6,863Expected 17/9/2026
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 Phototransistor Out Single CTR>100-200%
Datasheet
Product Comments
8,000Expected 3/9/2026
Min.: 1
Mult.: 1

6 V 3 us 50 mA Through Hole PDIP-4 1 Channel NPN Phototransistor