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.

Learn More

Results: 250
Select Image Part # Mfr. Description Datasheet Availability Pricing (EUR) 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
Broadcom / Avago Transistor Output Optocouplers 3000Vrms 50% CTR 22.389In Stock
Cut Tape
0,636 €
0,444 €
0,323 €
0,269 €
Reel
0,228 €
Min.: 1
Mult.: 1
: 3.000
6 V 2 us 50 mA SMD/SMT SOIC-4 1 Channel NPN Phototransistor
Broadcom / Avago Transistor Output Optocouplers DC Phototx Coupler 13.810In Stock
12.000Expected 2/9/2027
Cut Tape
1,11 €
0,78 €
0,582 €
0,495 €
Reel
0,439 €
Min.: 1
Mult.: 1
: 2.000
6 V 2 us 50 mA SMD/SMT SOIC-8 2 Channel NPN Phototransistor
Broadcom / Avago Transistor Output Optocouplers 5000 Vrms 50mA 20.836In Stock
0,576 €
0,389 €
0,275 €
0,228 €
Min.: 1
Mult.: 1
6 V 18 us 50 mA Through Hole PDIP-4 Gull Wing 1 Channel NPN Phototransistor
Vishay Semiconductors Transistor Output Optocouplers PHOTOTRANSISTOR OUT CTR 50-300% 4.619In Stock
Cut Tape
2,29 €
1,81 €
1,25 €
1,19 €
Reel
1,11 €
1,02 €
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% 5.431In Stock
19.950On Order
2,40 €
1,56 €
1,32 €
1,14 €
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 Dual CTR >100% 13.522In Stock
Cut Tape
1,20 €
0,849 €
0,636 €
0,541 €
Reel
0,445 €
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% 2.095In Stock
1,63 €
1,01 €
0,886 €
0,785 €
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%
6.167In Stock
0,869 €
0,61 €
0,451 €
0,379 €
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 250-500% 4.914In Stock
0,929 €
0,654 €
0,484 €
0,409 €
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 Single CTR 50-300%
23.628In Stock
16.000On Order
Cut Tape
0,602 €
0,466 €
0,339 €
0,28 €
Reel
0,238 €
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%
7.565In Stock
Cut Tape
0,714 €
0,495 €
0,362 €
0,303 €
Reel
0,267 €
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
39.444In Stock
Cut Tape
0,525 €
0,375 €
0,285 €
0,25 €
Reel
0,219 €
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 Dual CTR >500% 13.218In Stock
Cut Tape
1,62 €
1,16 €
0,877 €
0,755 €
Reel
0,68 €
Min.: 1
Mult.: 1
: 2.000
6 V SMD/SMT SOIC-Narrow-8 2 Channel Photodarlington
onsemi Transistor Output Optocouplers Optocoupler Phototrans No Base 1.092In Stock
0,576 €
0,41 €
0,308 €
0,263 €
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 1.990In Stock
Cut Tape
0,576 €
0,41 €
0,307 €
0,27 €
Reel
0,229 €
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 5.525In Stock
Cut Tape
0,705 €
0,49 €
0,356 €
0,292 €
Reel
0,243 €
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 CTR 50-600% 5.060In Stock
0,361 €
0,249 €
0,178 €
0,145 €
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% 3.832In Stock
4.000On Order
0,396 €
0,27 €
0,194 €
0,158 €
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%
725In Stock
0,636 €
0,453 €
0,33 €
0,275 €
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
1.782In Stock
0,662 €
0,378 €
0,329 €
0,282 €
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>20%
1.998In Stock
Cut Tape
0,679 €
0,474 €
0,347 €
0,289 €
Reel
0,27 €
Min.: 1
Mult.: 1
: 1.000
6 V 50 mA SMD/SMT SMD-6 1 Channel NPN Phototransistor
Vishay Semiconductors Transistor Output Optocouplers NPN Phototransistor
1.821In Stock
0,602 €
0,334 €
0,294 €
0,252 €
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%
1.846In Stock
Cut Tape
0,714 €
0,495 €
0,362 €
0,303 €
Reel
0,283 €
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
3.710In Stock
1.750Expected 11/17/2026
0,611 €
0,519 €
0,384 €
0,318 €
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%
1.497In Stock
Cut Tape
0,714 €
0,495 €
0,362 €
0,303 €
Reel
0,283 €
Min.: 1
Mult.: 1
: 1.000
6 V 2 us 100 mA SMD/SMT SMD-6 1 Channel NPN Phototransistor