Optocouplers/Photocouplers

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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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Types of Optocouplers/Photocouplers

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (EUR) Filter the results in the table by unit price based on your quantity.	Qty.	Vr - Reverse Voltage	Rise Time	Maximum Collector Current	Mounting Style	Package/Case	Number of Channels	Output Type
Transistor Output Optocouplers Phototransistor Out Dual CTR 40-80% ILD205T Vishay Semiconductors 1: 1,19 € 37 964In Stock	Mfr. Part No. ILD205T Mouser Part No 782-ILD205T	Vishay Semiconductors	Transistor Output Optocouplers Phototransistor Out Dual CTR 40-80%	Datasheet	37 964In Stock	Cut Tape 1,19 € 0,849 € 0,636 € 0,541 € Reel 0,483 € View 0,51 € 0,45 € 0,443 € 0,442 € MouseReel Available	Min.: 1 Mult.: 1 : 2 000	6 V	3 us	2.5 mA	SMD/SMT	SOIC-8	2 Channel	NPN Phototransistor
Transistor Output Optocouplers Phototransistor Out TCMT1102 Vishay Semiconductors 1: 0,542 € 121 790In Stock	Mfr. Part No. TCMT1102 Mouser Part No 782-TCMT1102	Vishay Semiconductors	Transistor Output Optocouplers Phototransistor Out	Datasheet	121 790In Stock	Cut Tape 0,542 € 0,372 € 0,263 € 0,223 € Reel 0,182 € View 0,202 € 0,175 € 0,158 € 0,152 € MouseReel Available	Min.: 1 Mult.: 1 : 3 000	6 V	5.5 us	50 mA	SMD/SMT	SOP-4	1 Channel	NPN Phototransistor
Transistor Output Optocouplers Photodarlington Out Single CTR >600% TCLD1000 Vishay Semiconductors 1: 0,482 € 13 493In Stock	Mfr. Part No. TCLD1000 Mouser Part No 782-TCLD1000	Vishay Semiconductors	Transistor Output Optocouplers Photodarlington Out Single CTR >600%	Datasheet	13 493In Stock	Cut Tape 0,482 € 0,359 € 0,258 € 0,231 € Reel 0,20 € View 0,223 € 0,198 € MouseReel Available	Min.: 1 Mult.: 1 : 3 000	6 V	300 us	80 mA	SMD/SMT	SOP-4	1 Channel	Photodarlington
Transistor Output Optocouplers Phototransistor Out Dual CTR 63-125% ILD615-2 Vishay Semiconductors 1: 1,38 € 4 311In Stock	Mfr. Part No. ILD615-2 Mouser Part No 782-ILD615-2	Vishay Semiconductors	Transistor Output Optocouplers Phototransistor Out Dual CTR 63-125%	Datasheet	4 311In Stock	1,38 € 0,775 € 0,736 € 0,524 € 0,515 €	Min.: 1 Mult.: 1	6 V	2.8 us	50 mA	Through Hole	PDIP-8	2 Channel	NPN Phototransistor
Transistor Output Optocouplers Phototransistor Out Single CTR >100% IL213AT Vishay Semiconductors 1: 0,886 € 4 358In Stock	Mfr. Part No. IL213AT Mouser Part No 782-IL213AT	Vishay Semiconductors	Transistor Output Optocouplers Phototransistor Out Single CTR >100%	Datasheet	4 358In Stock	Cut Tape 0,886 € 0,588 € 0,439 € 0,384 € Reel 0,29 € View 0,361 € 0,288 €	Min.: 1 Mult.: 1 : 2 000	6 V		100 mA	SMD/SMT	SOIC-Narrow-8	1 Channel	NPN Phototransistor
Transistor Output Optocouplers DIP-8 DUAL PH TRANS MCT62 onsemi 1: 0,869 € 19 267In Stock	Mfr. Part No. MCT62 Mouser Part No 512-MCT62	onsemi	Transistor Output Optocouplers DIP-8 DUAL PH TRANS	Datasheet	19 267In Stock	0,869 € 0,607 € 0,444 € 0,37 € 0,347 €	Min.: 1 Mult.: 1 Max.: 1 000	25 V	2.4 us	30 mA	Through Hole	PDIP-8	2 Channel	NPN Phototransistor
Transistor Output Optocouplers RECOMMENDED ALT VO61 SFH617A-4X016 Vishay Semiconductors 1: 0,929 € 7 393In Stock	Mfr. Part No. SFH617A-4X016 Mouser Part No 782-SFH617A-4X016	Vishay Semiconductors	Transistor Output Optocouplers RECOMMENDED ALT VO61	Datasheet	7 393In Stock	0,929 € 0,654 € 0,429 € 0,377 € View 0,359 € 0,342 € 0,316 € 0,309 €	Min.: 1 Mult.: 1	6 V	4.6 us	50 mA	Through Hole	PDIP-4	1 Channel	NPN Phototransistor
Transistor Output Optocouplers 4PN DIP Photo Xstr Output Optocoupler FOD817SD onsemi 1: 0,456 € 13 530In Stock	Mfr. Part No. FOD817SD Mouser Part No 512-FOD817SD	onsemi	Transistor Output Optocouplers 4PN DIP Photo Xstr Output Optocoupler	Datasheet	13 530In Stock	Cut Tape 0,456 € 0,311 € 0,224 € 0,185 € Reel 0,135 € MouseReel Available	Min.: 1 Mult.: 1 Max.: 1 000 : 1 000	6 V	18 us	50 mA	SMD/SMT	SMD-4	1 Channel	NPN Phototransistor
Transistor Output Optocouplers PHOTO TRANS 4N25SM onsemi 1: 0,628 € 50 897In Stock	Mfr. Part No. 4N25SM Mouser Part No 512-4N25SM	onsemi	Transistor Output Optocouplers PHOTO TRANS	Datasheet	50 897In Stock	0,628 € 0,347 € 0,317 € 0,265 € 0,247 €	Min.: 1 Mult.: 1 Max.: 1 000	6 V			SMD/SMT	PDIP-6 Gull Wing	1 Channel	NPN Phototransistor
Transistor Output Optocouplers SO-8 DUAL PH TRAN MCT62S onsemi 1: 0,86 € 11 945In Stock	Mfr. Part No. MCT62S Mouser Part No 512-MCT62S	onsemi	Transistor Output Optocouplers SO-8 DUAL PH TRAN	Datasheet	11 945In Stock	0,86 € 0,486 € 0,446 € 0,377 € 0,353 €	Min.: 1 Mult.: 1 Max.: 1 000	25 V	2.4 us	30 mA	SMD/SMT	PDIP-8 Gull Wing	2 Channel	NPN Phototransistor
Transistor Output Optocouplers Optocoupler Phototransistor MCT2EM onsemi 1: 0,447 € 10 848In Stock	Mfr. Part No. MCT2EM Mouser Part No 512-MCT2EM	onsemi	Transistor Output Optocouplers Optocoupler Phototransistor	Datasheet	10 848In Stock	0,447 € 0,292 € 0,236 € 0,201 € 0,194 €	Min.: 1 Mult.: 1 Max.: 1 000	6 V			Through Hole	PDIP-6	1 Channel	NPN Phototransistor
Transistor Output Optocouplers Optocoupler Phototransistor 4N36M onsemi 1: 0,576 € 8 795In Stock	Mfr. Part No. 4N36M Mouser Part No 512-4N36M	onsemi	Transistor Output Optocouplers Optocoupler Phototransistor	Datasheet	8 795In Stock	0,576 € 0,347 € 0,26 € 0,222 € 0,197 €	Min.: 1 Mult.: 1 Max.: 1 000	6 V			Through Hole	PDIP-6	1 Channel	NPN Phototransistor
Transistor Output Optocouplers RECOMMENDED ALT SFH6 VO617A-3X017T Vishay Semiconductors 1: 0,378 € 101 204In Stock	Mfr. Part No. VO617A-3X017T Mouser Part No 78-VO617A-3X017T	Vishay Semiconductors	Transistor Output Optocouplers RECOMMENDED ALT SFH6 Learn More about Vishay Semiconductors vishaysemi VOx6xxA	Datasheet	101 204In Stock	Cut Tape 0,378 € 0,26 € 0,186 € 0,152 € Reel 0,14 € View 0,126 € 0,117 € 0,114 € MouseReel Available	Min.: 1 Mult.: 1 : 1 000	6 V	4.6 us	50 mA	SMD/SMT	SMD-4	1 Channel	NPN Phototransistor
Transistor Output Optocouplers Phototransistor Out Single CTR 40-80% SFH615A-1 Vishay Semiconductors 1: 0,542 € 20 432In Stock	Mfr. Part No. SFH615A-1 Mouser Part No 782-SFH615A-1	Vishay Semiconductors	Transistor Output Optocouplers Phototransistor Out Single CTR 40-80%	Datasheet	20 432In Stock	0,542 € 0,396 € 0,307 € 0,251 € View 0,241 € 0,234 € 0,225 € 0,224 €	Min.: 1 Mult.: 1	6 V	2 us	50 mA	Through Hole	PDIP-4	1 Channel	NPN Phototransistor
Optically Isolated Amplifiers Error amplifier Optocoupler FOD2741AS onsemi 1: 1,37 € 3 313In Stock End of Life	Mfr. Part No. FOD2741AS Mouser Part No 512-FOD2741AS End of Life	onsemi	Optically Isolated Amplifiers Error amplifier Optocoupler	Datasheet	3 313In Stock	1,37 € 0,955 € 0,825 € 0,723 € 0,707 €	Min.: 1 Mult.: 1 Max.: 1 000			50 mA	SMD/SMT	SMD-DIP-8	1 Channel	NPN Phototransistor
Transistor Output Optocouplers Phototransistor Out Single CTR 63-125% CNY17-2. Vishay Semiconductors 1: 0,688 € 1 335In Stock	Mfr. Part No. CNY17-2. Mouser Part No 782-CNY17-2.	Vishay Semiconductors	Transistor Output Optocouplers Phototransistor Out Single CTR 63-125% Learn More about Vishay Semiconductors vishay semi cny6xst optocouplers	Datasheet	1 335In Stock	0,688 € 0,395 € 0,329 € 0,272 € View 0,249 € 0,218 € 0,203 € 0,194 € 0,182 €	Min.: 1 Mult.: 1	6 V	2 us	100 mA	Through Hole	DIP-6	1 Channel	NPN Phototransistor
Transistor Output Optocouplers Phototransistor Out Single CTR 130-260% TCET1108G Vishay Semiconductors 1: 0,559 € 1 447In Stock	Mfr. Part No. TCET1108G Mouser Part No 782-TCET1108G	Vishay Semiconductors	Transistor Output Optocouplers Phototransistor Out Single CTR 130-260%	Datasheet	1 447In Stock	0,559 € 0,378 € 0,269 € 0,223 € View 0,204 € 0,192 € 0,165 € 0,163 € 0,157 €	Min.: 1 Mult.: 1	6 V	3 us	50 mA	Through Hole	DIP-4	1 Channel	NPN Phototransistor
Transistor Output Optocouplers Phototransistor Out Single CTR>10% 4N27-X009 Vishay Semiconductors 1: 0,654 € 623In Stock	Mfr. Part No. 4N27-X009 Mouser Part No 782-4N27-X009	Vishay Semiconductors	Transistor Output Optocouplers Phototransistor Out Single CTR>10%	Datasheet	623In Stock	0,654 € 0,453 € 0,329 € 0,27 € View 0,252 € 0,224 € 0,218 € 0,211 € 0,204 €	Min.: 1 Mult.: 1	6 V	2 us	50 mA	SMD/SMT	SMD-6	1 Channel	NPN Phototransistor
Transistor Output Optocouplers Phototransistor Out Single CTR>100-200% SFH601-3X016 Vishay Semiconductors 1: 1,42 € 641In Stock	Mfr. Part No. SFH601-3X016 Mouser Part No 782-SFH601-3X016	Vishay Semiconductors	Transistor Output Optocouplers Phototransistor Out Single CTR>100-200%	Datasheet	641In Stock	1,42 € 1,01 € 0,745 € 0,623 € View 0,579 € 0,516 €	Min.: 1 Mult.: 1	6 V		50 mA	Through Hole	PDIP-6	1 Channel	NPN Phototransistor
Transistor Output Optocouplers Phototransistor Out Single CTR>160-320% TCET1114G Vishay Semiconductors 1: 0,662 € 3 432In Stock	Mfr. Part No. TCET1114G Mouser Part No 782-TCET1114G	Vishay Semiconductors	Transistor Output Optocouplers Phototransistor Out Single CTR>160-320%	Datasheet	3 432In Stock	0,662 € 0,448 € 0,318 € 0,263 € View 0,242 € 0,227 € 0,193 € 0,192 € 0,184 €	Min.: 1 Mult.: 1	6 V	3 us	50 mA	Through Hole	DIP-4	1 Channel	NPN Phototransistor
Transistor Output Optocouplers Phototransistor Out CTR 160-320% IL1208AT Vishay Semiconductors 1: 1,26 € 1 453In Stock	Mfr. Part No. IL1208AT Mouser Part No 782-IL1208AT	Vishay Semiconductors	Transistor Output Optocouplers Phototransistor Out CTR 160-320%	Datasheet	1 453In Stock	Cut Tape 1,26 € 0,886 € 0,656 € 0,548 € Reel 0,427 € View 0,509 € 0,418 € 0,417 € MouseReel Available	Min.: 1 Mult.: 1 : 2 000	6 V		100 mA	SMD/SMT	SOIC-8	1 Channel	NPN Phototransistor
Transistor Output Optocouplers Phototransistor Out Single CTR>20% 4N38-X009T Vishay Semiconductors 1: 0,714 € 998In Stock 1 000Expected 08/10/2026	Mfr. Part No. 4N38-X009T Mouser Part No 782-4N38-X009T	Vishay Semiconductors	Transistor Output Optocouplers Phototransistor Out Single CTR>20%	Datasheet	998In Stock 1 000Expected 08/10/2026	Cut Tape 0,714 € 0,491 € 0,357 € 0,295 € Reel 0,27 € View 0,246 € 0,23 € 0,225 € MouseReel Available	Min.: 1 Mult.: 1 : 1 000	6 V		50 mA	SMD/SMT	SMD-6	1 Channel	NPN Phototransistor
Transistor Output Optocouplers Phototransistor Out Single CTR>160-320% SFH617A-4X001 Vishay Semiconductors 1: 0,929 € 2 593In Stock	Mfr. Part No. SFH617A-4X001 Mouser Part No 782-SFH617A-4X001	Vishay Semiconductors	Transistor Output Optocouplers Phototransistor Out Single CTR>160-320%	Datasheet	2 593In Stock	0,929 € 0,649 € 0,475 € 0,396 € View 0,372 € 0,363 € 0,304 € 0,297 € 0,284 €	Min.: 1 Mult.: 1	6 V	4.6 us	50 mA	Through Hole	PDIP-4	1 Channel	NPN Phototransistor
Transistor Output Optocouplers Phototrans Ouput MFP Input FODM121AR2V onsemi 1: 0,568 € 1 690In Stock	Mfr. Part No. FODM121AR2V Mouser Part No 512-FODM121AR2V	onsemi	Transistor Output Optocouplers Phototrans Ouput MFP Input Learn More about onsemi fairchild fodm121 124 2701 2705	Datasheet	1 690In Stock	Cut Tape 0,568 € 0,39 € 0,298 € 0,247 € Reel 0,212 € View 0,226 € 0,196 € 0,19 € MouseReel Available	Min.: 1 Mult.: 1 : 2 500	6 V	3 us	80 mA	SMD/SMT	SMD-4	1 Channel	NPN Phototransistor
Transistor Output Optocouplers 4PN DIP Photo Xstr Output Optocoupler FOD817S onsemi 1: 0,335 € 10 930In Stock	Mfr. Part No. FOD817S Mouser Part No 512-FOD817S	onsemi	Transistor Output Optocouplers 4PN DIP Photo Xstr Output Optocoupler	Datasheet	10 930In Stock	0,335 € 0,234 € 0,156 € 0,124 € View 0,116 € 0,104 €	Min.: 1 Mult.: 1 Max.: 2 000	6 V	18 us	50 mA	SMD/SMT	SMD-4	1 Channel	NPN Phototransistor