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 SO-8 PHOTO TRANS MOC205M onsemi 1: €0.473 4,045In Stock	Mfr. Part No. MOC205M Mouser Part No 512-MOC205M	onsemi	Transistor Output Optocouplers SO-8 PHOTO TRANS	Datasheet	4,045In Stock	€0.473 €0.313 €0.294 €0.261 View €0.242 €0.225 €0.224 €0.218	Min.: 1 Mult.: 1	6 V	3.2 us	150 mA	SMD/SMT	SOIC-Narrow-8	1 Channel	NPN Phototransistor
Transistor Output Optocouplers 3550 Vrms 60mA 4N35-000E Broadcom / Avago 1: €0.602 3,726In Stock	Mfr. Part No. 4N35-000E Mouser Part No 630-4N35-000E	Broadcom / Avago	Transistor Output Optocouplers 3550 Vrms 60mA Learn More about Broadcom / Avago broadcom optocouplers	Datasheet	3,726In Stock	€0.602 €0.319 €0.292 €0.249 View €0.219 €0.204 €0.194 €0.183	Min.: 1 Mult.: 1	6 V	10 us	100 mA	Through Hole	PDIP-6	1 Channel	NPN Phototransistor
Transistor Output Optocouplers Phototransistor Out Single CTR 63-125% Vishay Semiconductors CNY65A CNY65A Vishay Semiconductors 1: €2.23 13,656In Stock 2,100Expected 11/11/2026	Mfr. Part No. CNY65A Mouser Part No 782-CNY65A	Vishay Semiconductors	Transistor Output Optocouplers Phototransistor Out Single CTR 63-125% Learn More about Vishay Semiconductors vishay semi cny6xst optocouplers	Datasheet	13,656In Stock 2,100Expected 11/11/2026	€2.23 €1.47 €1.24 €1.09 View €1.02 €1.01 €0.959	Min.: 1 Mult.: 1	5 V	2.4 us	50 mA	Through Hole	DIP-4	1 Channel	NPN Phototransistor
Transistor Output Optocouplers Phototransistor Out Dual CTR 40-80% ILD205T Vishay Semiconductors 1: €1.20 35,649In Stock	Mfr. Part No. ILD205T Mouser Part No 782-ILD205T	Vishay Semiconductors	Transistor Output Optocouplers Phototransistor Out Dual CTR 40-80%	Datasheet	35,649In Stock	Cut Tape €1.20 €0.849 €0.636 €0.541 Reel €0.483 View €0.51 €0.451 €0.45 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 Phototx Coupler Quad ACPL-247-500E Broadcom / Avago 1: €1.93 24,287In Stock 46,000Expected 15/12/2026	Mfr. Part No. ACPL-247-500E Mouser Part No 630-ACPL-247-500E	Broadcom / Avago	Transistor Output Optocouplers Phototx Coupler Quad Learn More about Broadcom / Avago broadcom optocouplers	Datasheet	24,287In Stock 46,000Expected 15/12/2026	Cut Tape €1.93 €1.38 €1.07 €0.92 Reel €0.829 View €0.877 €0.778 €0.759 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	6 V	2 us	50 mA	SMD/SMT	SO-16	4 Channel	NPN Phototransistor
Transistor Output Optocouplers Phototx Coupler Quad ACPL-247-560E Broadcom / Avago 1: €2.12 19,466In Stock	Mfr. Part No. ACPL-247-560E Mouser Part No 630-ACPL-247-560E	Broadcom / Avago	Transistor Output Optocouplers Phototx Coupler Quad Learn More about Broadcom / Avago broadcom optocouplers	Datasheet	19,466In Stock	Cut Tape €2.12 €1.52 €1.17 €1.01 Reel €0.912 View €0.963 €0.869 €0.839 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	6 V	2 us	50 mA	SMD/SMT	SOIC-16	4 Channel	NPN Phototransistor
Transistor Output Optocouplers Phototransistor Out Dual CTR 100-200% ILD207T Vishay Semiconductors 1: €1.20 118,686In Stock 100,000Expected 24/11/2026	Mfr. Part No. ILD207T Mouser Part No 782-ILD207T	Vishay Semiconductors	Transistor Output Optocouplers Phototransistor Out Dual CTR 100-200%	Datasheet	118,686In Stock 100,000Expected 24/11/2026	Cut Tape €1.20 €0.849 €0.636 €0.541 Reel €0.484 View €0.51 €0.451 €0.422 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 CTR 100-200% Vishay Semiconductors VO618A-3X017T VO618A-3X017T Vishay Semiconductors 1: €0.396 13,838In Stock 44,000Expected 19/11/2026	Mfr. Part No. VO618A-3X017T Mouser Part No 78-VO618A-3X017T	Vishay Semiconductors	Transistor Output Optocouplers Phototransistor Out CTR 100-200% Learn More about Vishay Semiconductors vishaysemi VOx6xxA	Datasheet	13,838In Stock 44,000Expected 19/11/2026	Cut Tape €0.396 €0.27 €0.194 €0.158 Reel €0.141 View €0.131 €0.122 €0.119 €0.114 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	6 V	3 us	50 mA	SMD/SMT	SMD-4	1 Channel	NPN Phototransistor
Transistor Output Optocouplers PHOTOTRANSISTOR OUT CTR 50-150% Vishay Semiconductors CNY64AYST CNY64AYST Vishay Semiconductors 1: €2.56 1,734In Stock	Mfr. Part No. CNY64AYST Mouser Part No 782-CNY64AYST	Vishay Semiconductors	Transistor Output Optocouplers PHOTOTRANSISTOR OUT CTR 50-150% Learn More about Vishay Semiconductors vishay semi cny6xst optocouplers	Datasheet	1,734In Stock	Cut Tape €2.56 €1.87 €1.29 €1.27 Reel €1.15 €1.11 MouseReel Available	Min.: 1 Mult.: 1 : 800	5 V	2.4 us	50 mA	SMD/SMT	DIP-4	1 Channel	NPN Phototransistor
Transistor Output Optocouplers PHOTOTRANSISTOR OUT CTR 50-150% Vishay Semiconductors CNY65AYST CNY65AYST Vishay Semiconductors 1: €2.76 6,404In Stock	Mfr. Part No. CNY65AYST Mouser Part No 782-CNY65AYST	Vishay Semiconductors	Transistor Output Optocouplers PHOTOTRANSISTOR OUT CTR 50-150% Learn More about Vishay Semiconductors vishay semi cny6xst optocouplers	Datasheet	6,404In Stock	Cut Tape €2.76 €2.01 €1.39 €1.33 Reel €1.26 View €1.21 €1.20 MouseReel Available	Min.: 1 Mult.: 1 : 800	5 V	2.4 us	50 mA	SMD/SMT	DIP-4	1 Channel	NPN Phototransistor
Transistor Output Optocouplers Phototransistor Out Single CTR 50-300% Vishay Semiconductors CNY65EXI CNY65EXI Vishay Semiconductors 1: €5.64 3,353In Stock	Mfr. Part No. CNY65EXI Mouser Part No 782-CNY65EXI	Vishay Semiconductors	Transistor Output Optocouplers Phototransistor Out Single CTR 50-300% Learn More about Vishay Semiconductors vishay semi cny6xst optocouplers	Datasheet	3,353In Stock	€5.64 €3.81 €3.59 €3.29 View €3.15 €3.12 Quote	Min.: 1 Mult.: 1	5 V	2.4 us	50 mA	Through Hole	DIP-4	1 Channel	NPN Phototransistor
Transistor Output Optocouplers Phototransistor Out Single CTR 100-200% Vishay Semiconductors IL207AT IL207AT Vishay Semiconductors 1: €0.903 9,985In Stock	Mfr. Part No. IL207AT Mouser Part No 782-IL207AT	Vishay Semiconductors	Transistor Output Optocouplers Phototransistor Out Single CTR 100-200%	Datasheet	9,985In Stock	Cut Tape €0.903 €0.632 €0.467 €0.394 Reel €0.359 View €0.37 €0.337 €0.301 €0.299 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	6 V		100 mA	SMD/SMT	SOIC-Narrow-8	1 Channel	NPN Phototransistor
Transistor Output Optocouplers RECOMMENDED ALT VO61 Vishay Semiconductors SFH610A-2 SFH610A-2 Vishay Semiconductors 1: €0.963 6,834In Stock	Mfr. Part No. SFH610A-2 Mouser Part No 782-SFH610A-2	Vishay Semiconductors	Transistor Output Optocouplers RECOMMENDED ALT VO61 Learn More about Vishay Semiconductors vishay sfh610a sfh6106	Datasheet	6,834In Stock	€0.963 €0.678 €0.503 €0.425 View €0.399 €0.378 €0.377 €0.337 €0.323	Min.: 1 Mult.: 1	6 V	3 us	100 mA	Through Hole	DIP-4	1 Channel	NPN Phototransistor
Transistor Output Optocouplers Phototransistor Out Single CTR>100-200% Vishay Semiconductors SFH617A-3X006 SFH617A-3X006 Vishay Semiconductors 1: €0.869 8,000In Stock	Mfr. Part No. SFH617A-3X006 Mouser Part No 782-SFH617A-3X006	Vishay Semiconductors	Transistor Output Optocouplers Phototransistor Out Single CTR>100-200%	Datasheet	8,000In Stock	€0.869 €0.61 €0.451 €0.379 View €0.356 €0.336 €0.302 €0.29 €0.286	Min.: 1 Mult.: 1	6 V	3 us	50 mA	Through Hole	PDIP-4	1 Channel	NPN Phototransistor
Transistor Output Optocouplers Phototransistor Out Single CTR 160-320% SFH6186-4 Vishay Semiconductors 1: €0.774 6,372In Stock	Mfr. Part No. SFH6186-4 Mouser Part No 782-SFH6186-4	Vishay Semiconductors	Transistor Output Optocouplers Phototransistor Out Single CTR 160-320% Learn More about Vishay Semiconductors vishay sfh618 optocouplers	Datasheet	6,372In Stock	€0.774 €0.543 €0.398 €0.333 View €0.313 €0.29 €0.28 €0.256 €0.255	Min.: 1 Mult.: 1	6 V	3.5 us	100 mA	Through Hole	SMD-4	1 Channel	NPN Phototransistor
Transistor Output Optocouplers Phototransistor Out Single CTR 250-500% SFH6186-5T Vishay Semiconductors 1: €0.791 5,769In Stock	Mfr. Part No. SFH6186-5T Mouser Part No 782-SFH6186-5T	Vishay Semiconductors	Transistor Output Optocouplers Phototransistor Out Single CTR 250-500% Learn More about Vishay Semiconductors vishay sfh618 optocouplers	Datasheet	5,769In Stock	Cut Tape €0.791 €0.554 €0.408 €0.342 Reel €0.321 View €0.297 €0.283 €0.275 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	6 V	3.5 us	100 mA	SMD/SMT	SMD-4	1 Channel	NPN Phototransistor
Transistor Output Optocouplers Phototransistor Out Quad CTR 50-300% SFH6916 Vishay Semiconductors 1: €2.36 4,132In Stock	Mfr. Part No. SFH6916 Mouser Part No 782-SFH6916	Vishay Semiconductors	Transistor Output Optocouplers Phototransistor Out Quad CTR 50-300%	Datasheet	4,132In Stock	€2.36 €1.50 €1.27 €1.18 View €1.12 €1.11 €1.08 €1.01	Min.: 1 Mult.: 1	6 V	5.5 us	100 mA	SMD/SMT	SSOP-16	4 Channel	NPN Phototransistor
Transistor Output Optocouplers Phototransistor Out Single CTR 200-400% Vishay Semiconductors TCLT1009 TCLT1009 Vishay Semiconductors 1: €0.679 15,619In Stock	Mfr. Part No. TCLT1009 Mouser Part No 782-TCLT1009	Vishay Semiconductors	Transistor Output Optocouplers Phototransistor Out Single CTR 200-400%	Datasheet	15,619In Stock	Cut Tape €0.679 €0.468 €0.331 €0.274 Reel €0.238 View €0.255 €0.23 €0.219 €0.215 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	6 V	3 us	50 mA	SMD/SMT	SOP-4	1 Channel	NPN Phototransistor
Transistor Output Optocouplers Phototransistor Out Single CTR 200-400% Vishay Semiconductors TCLT1109 TCLT1109 Vishay Semiconductors 1: €0.662 10,230In Stock 6,000Expected 17/11/2026	Mfr. Part No. TCLT1109 Mouser Part No 782-TCLT1109	Vishay Semiconductors	Transistor Output Optocouplers Phototransistor Out Single CTR 200-400%	Datasheet	10,230In Stock 6,000Expected 17/11/2026	Cut Tape €0.662 €0.463 €0.338 €0.282 Reel €0.239 View €0.263 €0.227 €0.222 €0.206 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	6 V	3 us	50 mA	SMD/SMT	SOP-5	1 Channel	NPN Phototransistor
Transistor Output Optocouplers Photodarlington Out Single CTR >600% TCMD1000 Vishay Semiconductors 1: €0.843 12,894In Stock 24,000Expected 11/12/2026	Mfr. Part No. TCMD1000 Mouser Part No 782-TCMD1000	Vishay Semiconductors	Transistor Output Optocouplers Photodarlington Out Single CTR >600%	Datasheet	12,894In Stock 24,000Expected 11/12/2026	Cut Tape €0.843 €0.59 €0.435 €0.366 Reel €0.313 View €0.343 €0.299 €0.291 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 TCMT1100 Vishay Semiconductors 1: €0.542 11,780In Stock 39,000On Order	Mfr. Part No. TCMT1100 Mouser Part No 782-TCMT1100	Vishay Semiconductors	Transistor Output Optocouplers Phototransistor Out	Datasheet	11,780In Stock 39,000On Order	Cut Tape €0.542 €0.358 €0.262 €0.221 Reel €0.189 View €0.206 €0.179 €0.174 €0.17 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 Phototransistor Out TCMT1104 Vishay Semiconductors 1: €0.542 16,091In Stock	Mfr. Part No. TCMT1104 Mouser Part No 782-TCMT1104	Vishay Semiconductors	Transistor Output Optocouplers Phototransistor Out	Datasheet	16,091In Stock	Cut Tape €0.542 €0.372 €0.269 €0.223 Reel €0.204 View €0.207 €0.189 €0.176 €0.16 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	6 V	5.5 us	50 mA	SMD/SMT	SOP-4	1 Channel	NPN Phototransistor
Optically Isolated Amplifiers Error amplifier Optocoupler FOD2741AS onsemi 1: €1.75 3,167In Stock End of Life	Mfr. Part No. FOD2741AS Mouser Part No 512-FOD2741AS End of Life	onsemi	Optically Isolated Amplifiers Error amplifier Optocoupler	Datasheet	3,167In Stock	€1.75 €1.03 €0.955 €0.817 View €0.775 €0.738 €0.684 €0.66	Min.: 1 Mult.: 1			50 mA	SMD/SMT	SMD-DIP-8	1 Channel	NPN Phototransistor
Transistor Output Optocouplers Optocoupler Photodarlington 4N32M onsemi 1: €0.929 12,711In Stock	Mfr. Part No. 4N32M Mouser Part No 512-4N32M	onsemi	Transistor Output Optocouplers Optocoupler Photodarlington	Datasheet	12,711In Stock	€0.929 €0.642 €0.499 €0.415 View €0.39 €0.366 €0.322 €0.301	Min.: 1 Mult.: 1	3 V		150 mA	Through Hole	PDIP-6	1 Channel	Photodarlington
Transistor Output Optocouplers PHOTO DARL 4N33SR2M onsemi 1: €0.86 8,477In Stock 21,000On Order	Mfr. Part No. 4N33SR2M Mouser Part No 512-4N33SR2M	onsemi	Transistor Output Optocouplers PHOTO DARL	Datasheet	8,477In Stock 21,000On Order On Order Ship Dates Mfr. No: 4N33SR2M Stock: 8,477 Can Dispatch Immediately On Order: 9,000 Expected 29/12/2026 12,000 Expected 22/01/2027 Factory Lead Time: 24 Weeks	Cut Tape €0.86 €0.60 €0.439 €0.392 Reel €0.333 View €0.276 €0.265 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	3 V		150 mA	SMD/SMT	SMD-DIP-6	1 Channel	Photodarlington