Optocouplers/Photocouplers – Mouser United Kingdom

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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 (GBP) 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 Single CTR 40-80% CNY17F-1 Vishay Semiconductors 1: £0.473 2,771In Stock	Mfr. Part No. CNY17F-1 Mouser Part No 782-CNY17F-1	Vishay Semiconductors	Transistor Output Optocouplers Phototransistor Out Single CTR 40-80% Learn More about Vishay Semiconductors vishay semi cny6xst optocouplers	Datasheet	2,771In Stock	£0.473 £0.276 £0.227 £0.198 View £0.193 £0.185 £0.169 £0.162 £0.153	Min.: 1 Mult.: 1	6 V	2 us	50 mA	Through Hole	PDIP-6	1 Channel	NPN Phototransistor
Transistor Output Optocouplers Phototransistor Out Single CTR 100-200% CNY17F-3X007 Vishay Semiconductors 1: £0.563 1,940In Stock	Mfr. Part No. CNY17F-3X007 Mouser Part No 782-CNY17F-3X007	Vishay Semiconductors	Transistor Output Optocouplers Phototransistor Out Single CTR 100-200% Learn More about Vishay Semiconductors vishay semi cny6xst optocouplers	Datasheet	1,940In Stock	£0.563 £0.391 £0.285 £0.238 View £0.223 £0.203 £0.191 £0.185 £0.175	Min.: 1 Mult.: 1	6 V	2 us	50 mA	SMD/SMT	SMD-6	1 Channel	NPN Phototransistor
Transistor Output Optocouplers PHOTOTRANSISTOR OUT CTR 80-240% CNY64ABST Vishay Semiconductors 1: £2.07 853In Stock	Mfr. Part No. CNY64ABST Mouser Part No 782-CNY64ABST	Vishay Semiconductors	Transistor Output Optocouplers PHOTOTRANSISTOR OUT CTR 80-240% Learn More about Vishay Semiconductors vishay semi cny6xst optocouplers	Datasheet	853In Stock	Cut Tape £2.07 £1.53 £1.13 £1.07 Reel £1.00 View £0.969 £0.952 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% CNY64AYST Vishay Semiconductors 1: £2.23 154In Stock 1,600Expected 30/10/2026	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	154In Stock 1,600Expected 30/10/2026	Cut Tape £2.23 £1.63 £1.13 £1.07 Reel £1.05 £0.969 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 100-200% CNY75GB Vishay Semiconductors 1: £0.488 940In Stock 2,000Expected 11/11/2026	Mfr. Part No. CNY75GB Mouser Part No 782-CNY75GB	Vishay Semiconductors	Transistor Output Optocouplers Phototransistor Out Single CTR 100-200% Learn More about Vishay Semiconductors vishay semi cny6xst optocouplers	Datasheet	940In Stock 2,000Expected 11/11/2026	£0.488 £0.34 £0.246 £0.204 View £0.19 £0.175 £0.163 £0.157 £0.148	Min.: 1 Mult.: 1	5 V	3 us	50 mA	Through Hole	PDIP-6	1 Channel	NPN Phototransistor
Transistor Output Optocouplers Phototransistor Out CTR 100-200% IL1207AT Vishay Semiconductors 1: £0.841 3,644In Stock	Mfr. Part No. IL1207AT Mouser Part No 782-IL1207AT	Vishay Semiconductors	Transistor Output Optocouplers Phototransistor Out CTR 100-200%	Datasheet	3,644In Stock	Cut Tape £0.841 £0.592 £0.439 £0.371 Reel £0.329 View £0.348 £0.298 £0.285 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% IL211AT Vishay Semiconductors 1: £0.788 2,115In Stock	Mfr. Part No. IL211AT Mouser Part No 782-IL211AT	Vishay Semiconductors	Transistor Output Optocouplers Phototransistor Out Single CTR >20%	Datasheet	2,115In Stock	Cut Tape £0.788 £0.528 £0.397 £0.338 Reel £0.304 View £0.323 £0.282 £0.253 £0.249 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	6 V		100 mA	SMD/SMT	SOIC-Narrow-8	1 Channel	NPN Phototransistor
Transistor Output Optocouplers Phototransistor Out Single CTR 40-80% SFH601-1 Vishay Semiconductors 1: £1.12 1,990In Stock	Mfr. Part No. SFH601-1 Mouser Part No 782-SFH601-1	Vishay Semiconductors	Transistor Output Optocouplers Phototransistor Out Single CTR 40-80%	Datasheet	1,990In Stock	£1.12 £0.788 £0.587 £0.496 View £0.464 £0.432 £0.426 £0.414	Min.: 1 Mult.: 1	6 V		50 mA	Through Hole	DIP-6	1 Channel	NPN Phototransistor
Transistor Output Optocouplers Phototransistor Out Single CTR 100-200% SFH601-3 Vishay Semiconductors 1: £1.03 1,107In Stock	Mfr. Part No. SFH601-3 Mouser Part No 782-SFH601-3	Vishay Semiconductors	Transistor Output Optocouplers Phototransistor Out Single CTR 100-200%	Datasheet	1,107In Stock	£1.03 £0.59 £0.501 £0.441 View £0.411 £0.388 £0.375	Min.: 1 Mult.: 1	6 V		50 mA	Through Hole	DIP-6	1 Channel	NPN Phototransistor
Transistor Output Optocouplers Phototransistor Out Single CTR > 63-125% SFH6106-2T Vishay Semiconductors 1: £0.736 2,640In Stock	Mfr. Part No. SFH6106-2T Mouser Part No 782-SFH6106-2T	Vishay Semiconductors	Transistor Output Optocouplers Phototransistor Out Single CTR > 63-125% Learn More about Vishay Semiconductors vishay sfh610a sfh6106	Datasheet	2,640In Stock	Cut Tape £0.736 £0.515 £0.38 £0.32 Reel £0.299 View £0.273 £0.258 £0.252 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	6 V	3 us	100 mA	SMD/SMT	SMD-4	1 Channel	NPN Phototransistor
Transistor Output Optocouplers Phototransistor Out Single CTR>100-200% SFH6106-3X001T Vishay Semiconductors 1: £0.788 489In Stock 1,000Expected 02/11/2026	Mfr. Part No. SFH6106-3X001T Mouser Part No 782-SFH6106-3X001T	Vishay Semiconductors	Transistor Output Optocouplers Phototransistor Out Single CTR>100-200% Learn More about Vishay Semiconductors vishay sfh610a sfh6106	Datasheet	489In Stock 1,000Expected 02/11/2026	Cut Tape £0.788 £0.553 £0.409 £0.346 Reel £0.324 View £0.297 £0.28 £0.272 £0.263 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	6 V	3 us	100 mA	SMD/SMT	SMD-4	1 Channel	NPN Phototransistor
Transistor Output Optocouplers Phototransistor Out Single CTR 160-320% SFH6106-4 Vishay Semiconductors 1: £0.684 4,566In Stock	Mfr. Part No. SFH6106-4 Mouser Part No 782-SFH6106-4	Vishay Semiconductors	Transistor Output Optocouplers Phototransistor Out Single CTR 160-320% Learn More about Vishay Semiconductors vishay sfh610a sfh6106	Datasheet	4,566In Stock	£0.684 £0.476 £0.35 £0.293 View £0.275 £0.259 £0.242 £0.231 £0.219	Min.: 1 Mult.: 1	6 V	4 us	100 mA	SMD/SMT	SMD-4	1 Channel	NPN Phototransistor
Transistor Output Optocouplers Phototransistor Out Single CTR>160-320% SFH6106-4T Vishay Semiconductors 1: £0.705 3,082In Stock	Mfr. Part No. SFH6106-4T Mouser Part No 782-SFH6106-4T	Vishay Semiconductors	Transistor Output Optocouplers Phototransistor Out Single CTR>160-320% Learn More about Vishay Semiconductors vishay sfh610a sfh6106	Datasheet	3,082In Stock	Cut Tape £0.705 £0.501 £0.366 £0.32 Reel £0.299 View £0.273 £0.251 £0.244 £0.24 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	6 V	4 us	100 mA	SMD/SMT	SMD-4	1 Channel	NPN Phototransistor
Transistor Output Optocouplers Phototransistor Out Single CTR>160-320% SFH6156-4X001T Vishay Semiconductors 1: £0.45 2,650In Stock	Mfr. Part No. SFH6156-4X001T Mouser Part No 782-SFH6156-4X001T	Vishay Semiconductors	Transistor Output Optocouplers Phototransistor Out Single CTR>160-320%	Datasheet	2,650In Stock	Cut Tape £0.45 £0.309 £0.223 £0.185 Reel £0.172 View £0.171 £0.145 £0.141 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	6 V	4 us	100 mA	SMD/SMT	SMD-4	1 Channel	NPN Phototransistor
Transistor Output Optocouplers RECOMMENDED ALT VO61 SFH615A-3 Vishay Semiconductors 1: £0.571 2,626In Stock 4,000Expected 19/11/2026	Mfr. Part No. SFH615A-3 Mouser Part No 782-SFH615A-3	Vishay Semiconductors	Transistor Output Optocouplers RECOMMENDED ALT VO61	Datasheet	2,626In Stock 4,000Expected 19/11/2026	£0.571 £0.40 £0.255 £0.225 View £0.222 £0.217 £0.192 £0.187	Min.: 1 Mult.: 1	6 V	3 us	50 mA	Through Hole	DIP-4	1 Channel	NPN Phototransistor
Transistor Output Optocouplers RECOMMENDED ALT VO61 SFH615A-4 Vishay Semiconductors 1: £0.623 3,927In Stock	Mfr. Part No. SFH615A-4 Mouser Part No 782-SFH615A-4	Vishay Semiconductors	Transistor Output Optocouplers RECOMMENDED ALT VO61	Datasheet	3,927In Stock	£0.623 £0.432 £0.316 £0.265 View £0.248 £0.233 £0.227 £0.207 £0.196	Min.: 1 Mult.: 1	6 V	4 us	50 mA	Through Hole	PDIP-4	1 Channel	NPN Phototransistor
Transistor Output Optocouplers RECOMMENDED ALT VO61 SFH617A-1 Vishay Semiconductors 1: £0.668 3,952In Stock	Mfr. Part No. SFH617A-1 Mouser Part No 782-SFH617A-1	Vishay Semiconductors	Transistor Output Optocouplers RECOMMENDED ALT VO61	Datasheet	3,952In Stock	£0.668 £0.478 £0.357 £0.305 View £0.286 £0.274 £0.244 £0.23 £0.223	Min.: 1 Mult.: 1	6 V	2 us	50 mA	Through Hole	PDIP-4	1 Channel	NPN Phototransistor
Transistor Output Optocouplers RECOMMENDED ALT VO61 SFH617A-3 Vishay Semiconductors 1: £0.684 622In Stock 4,000Expected 29/10/2026	Mfr. Part No. SFH617A-3 Mouser Part No 782-SFH617A-3	Vishay Semiconductors	Transistor Output Optocouplers RECOMMENDED ALT VO61	Datasheet	622In Stock 4,000Expected 29/10/2026	£0.684 £0.543 £0.413 £0.365 View £0.345 £0.335 £0.251	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>100-200% SFH617A-3X007T Vishay Semiconductors 1: £0.811 3,282In Stock	Mfr. Part No. SFH617A-3X007T Mouser Part No 782-SFH617A-3X007T	Vishay Semiconductors	Transistor Output Optocouplers Phototransistor Out Single CTR>100-200%	Datasheet	3,282In Stock	Cut Tape £0.811 £0.571 £0.423 £0.357 Reel £0.334 View £0.306 £0.29 £0.284 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 Single CTR 100-200% SFH6186-3T Vishay Semiconductors 1: £0.751 2,752In Stock 4,000Expected 27/10/2026	Mfr. Part No. SFH6186-3T Mouser Part No 782-SFH6186-3T	Vishay Semiconductors	Transistor Output Optocouplers Phototransistor Out Single CTR 100-200% Learn More about Vishay Semiconductors vishay sfh618 optocouplers	Datasheet	2,752In Stock 4,000Expected 27/10/2026	Cut Tape £0.751 £0.523 £0.386 £0.317 Reel £0.259 View £0.256 £0.221 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 Single CTR 160-320% SFH6186-4 Vishay Semiconductors 1: £0.676 2,399In Stock 4,000Expected 30/10/2026	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	2,399In Stock 4,000Expected 30/10/2026	£0.676 £0.471 £0.346 £0.29 View £0.272 £0.255 £0.243 £0.235 £0.223	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 160-320% SFH6186-4T Vishay Semiconductors 1: £0.751 2,887In Stock	Mfr. Part No. SFH6186-4T Mouser Part No 782-SFH6186-4T	Vishay Semiconductors	Transistor Output Optocouplers Phototransistor Out Single CTR 160-320% Learn More about Vishay Semiconductors vishay sfh618 optocouplers	Datasheet	2,887In Stock	Cut Tape £0.751 £0.523 £0.386 £0.325 Reel £0.304 View £0.278 £0.263 £0.258 £0.257 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 Optocoupler Phototransistor 4N25SR2VM onsemi 1: £0.608 958In Stock	Mfr. Part No. 4N25SR2VM Mouser Part No 512-4N25SR2VM	onsemi	Transistor Output Optocouplers Optocoupler Phototransistor	Datasheet	958In Stock	Cut Tape £0.608 £0.424 £0.308 £0.252 Reel £0.236 View £0.224 £0.213 £0.197 £0.185 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	6 V			SMD/SMT	SMD-DIP-6	1 Channel	NPN Phototransistor
Transistor Output Optocouplers Optocoupler Phototransistor 4N25VM onsemi 1: £0.623 768In Stock	Mfr. Part No. 4N25VM Mouser Part No 512-4N25VM	onsemi	Transistor Output Optocouplers Optocoupler Phototransistor	Datasheet	768In Stock	£0.623 £0.438 £0.319 £0.26 View £0.244 £0.232 £0.221 £0.204 £0.191	Min.: 1 Mult.: 1	6 V			Through Hole	PDIP-6	1 Channel	NPN Phototransistor
Transistor Output Optocouplers Optocoupler Phototransistor 4N26M onsemi 1: £0.608 1,120In Stock	Mfr. Part No. 4N26M Mouser Part No 512-4N26M	onsemi	Transistor Output Optocouplers Optocoupler Phototransistor	Datasheet	1,120In Stock	£0.608 £0.424 £0.308 £0.252 View £0.236 £0.224 £0.213 £0.197 £0.185	Min.: 1 Mult.: 1	6 V			Through Hole	PDIP-6	1 Channel	NPN Phototransistor