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 Photodarlington Out Single CTR > 1000%
Datasheet
2,155Expected 9/9/2026
MouseReel Available
Min.: 1
Mult.: 1
: 1,000

6 V 125 mA SMD/SMT SMD-4 1 Channel Photodarlington
onsemi Transistor Output Optocouplers Hi Volt Phototrans
Datasheet
6,500On Order
MouseReel Available
Min.: 1
Mult.: 1
: 1,000

6 V 100 mA SMD/SMT SMD-DIP-6 1 Channel NPN Phototransistor
Broadcom / Avago Transistor Output Optocouplers 5000 Vrms 50% CTR
Datasheet
9,094On Order
Min.: 1
Mult.: 1

6 V 18 us 50 mA SMD/SMT PDIP-16 Gull Wing 4 Channel NPN Phototransistor
Vishay Semiconductors Transistor Output Optocouplers Phototransistor Out Single CTR >100%
Datasheet
Product Comments
25,950Expected 17/12/2026
MouseReel Available
Min.: 1
Mult.: 1
: 1,000

6 V 50 mA SMD/SMT SMD-6 1 Channel NPN Phototransistor
Vishay Semiconductors Transistor Output Optocouplers PHOTOTRANSISTOR OUT CTR 100-300%
Datasheet
3,600On 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 CTR 80-240%
Datasheet
3,960On 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 CTR 100-300
Datasheet
6,241On 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 Photodarlington Out Single CTR > 1000%
Datasheet
7,869On Order
MouseReel Available
Min.: 1
Mult.: 1
: 1,000

6 V 125 mA SMD/SMT SMD-4 1 Channel Photodarlington
Vishay Semiconductors Transistor Output Optocouplers Phototransistor Out Single CTR 50-300%
Datasheet
Product Comments
39,638On Order
MouseReel Available
Min.: 1
Mult.: 1
: 2,000

6 V 3 us 100 mA SMD/SMT SOP-4 1 Channel NPN Phototransistor
Vishay Semiconductors Transistor Output Optocouplers Phototransistor Out Single CTR>200-400%
Datasheet
Product Comments
7,787Expected 2/10/2026
MouseReel Available
Min.: 1
Mult.: 1
: 2,000

6 V 3 us 100 mA SMD/SMT SOP-4 1 Channel NPN Phototransistor
Vishay Semiconductors Transistor Output Optocouplers Phototransistor Out
Datasheet
37,725On 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
11,915In Stock
24,000Expected 23/10/2026
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

6 V 5.5 us 50 mA SMD/SMT SOP-4 1 Channel NPN Phototransistor
onsemi Transistor Output Optocouplers 0.4" Optocoupler Phototransistor
Datasheet
4,000On Order
Min.: 1
Mult.: 1
Max.: 460

6 V Through Hole PDIP-6 1 Channel NPN Phototransistor
Vishay Semiconductors Transistor Output Optocouplers Phototransistor Out
Datasheet
6,000On Order
Min.: 1
Mult.: 1

6 V 100 mA Through Hole DIP-6 1 Channel NPN Phototransistor
Vishay Semiconductors Transistor Output Optocouplers Phototransistor Out Single CTR > 100%
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 1
Mult.: 1

6 V 50 mA Through Hole PDIP-6 1 Channel NPN Phototransistor
onsemi Transistor Output Optocouplers 6-Pin DIP General Purpose Photodarlington Optocoupler
Datasheet
Lead-Time 40 Weeks
Min.: 1
Mult.: 1

3 V 150 mA SMD/SMT SMD-DIP-6 1 Channel Photodarlington
Broadcom / Avago Transistor Output Optocouplers 5000 Vrms 50% CTR
Datasheet
Non-Stocked Lead-Time 20 Weeks
Min.: 8,900
Mult.: 50

6 V 18 us 50 mA SMD/SMT PDIP-8 Gull Wing 2 Channel NPN Phototransistor
Vishay Semiconductors Transistor Output Optocouplers Phototransistor Out Single CTR 63-125%
Datasheet
Product Comments
Non-Stocked
Min.: 1
Mult.: 1

6 V 2 us 50 mA Through Hole DIP-6 1 Channel NPN Phototransistor
Vishay Semiconductors Transistor Output Optocouplers Photodarlington Out Single CTR >200%
Datasheet
Non-Stocked
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 > 40-80%
Datasheet
Non-Stocked
Min.: 4,000
Mult.: 4,000

6 V 100 mA SMD/SMT SMD-4 1 Channel NPN Phototransistor
Vishay Semiconductors Transistor Output Optocouplers RECOMMENDED ALT VO61
Datasheet
Non-Stocked
Min.: 4,000
Mult.: 4,000

6 V 3 us 100 mA Through Hole DIP-4 1 Channel NPN Phototransistor
Vishay Semiconductors Transistor Output Optocouplers Phototransistor Out Single CTR > 40-80%
Datasheet
Product Comments
Non-Stocked
Min.: 4,000
Mult.: 4,000

6 V 100 mA SMD/SMT SMD-4 1 Channel NPN Phototransistor
Vishay Semiconductors Transistor Output Optocouplers Phototransistor Out Single CTR > 63-125%
Datasheet
Non-Stocked
Min.: 1
Mult.: 1

5 V 4.2 us 50 mA Through Hole PDIP-6 1 Channel NPN Phototransistor
onsemi Optically Isolated Amplifiers Error Amp Coupler Transistor Output
Datasheet
Non-Stocked Lead-Time 53 Weeks
Min.: 1
Mult.: 1

50 mA SMD/SMT SMD-DIP-8 1 Channel Phototransistor