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Optocouplers / Photocouplers

LITEON Optocouplers / Photocouplers are available in standard single, dual, and quad channels. These devices come in Dual-In Package (DIP), Small Outline Package (SOP), Shrink Small Outline Package (SSOP), and Long Small Outline Package (LSOP). The optocouplers / photocouplers are offered with transistor, triac, high speed, Darlington, IGBT drive output, and AC input configurations. These Optocouplers / Photocouplers serve various applications such as switch mode power, battery chargers, fax modems, home appliances, telecommunications, and industry controllers.

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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.
Transistor Output Optocouplers DC INPUT, 2CH LTV-827S-TA1-B LITEON 1: £0.54 6,454In Stock	Mfr. Part No. LTV-827S-TA1-B Mouser Part No 859-LTV-827S-TA1-B	LITEON	Transistor Output Optocouplers DC INPUT, 2CH Learn More about LITEON general purpose phototransistor photocouplers	Datasheet	6,454In Stock	Cut Tape £0.54 £0.368 £0.26 £0.223 Reel £0.189 View £0.185 £0.171 £0.148 £0.145	Min.: 1 Mult.: 1 : 1,000
Transistor Output Optocouplers PTR 20%, 2.5KV 4N25S-TA1 LITEON 1: £0.361 12,176In Stock	Mfr. Part No. 4N25S-TA1 Mouser Part No 859-4N25S-TA1	LITEON	Transistor Output Optocouplers PTR 20%, 2.5KV Learn More about LITEON general purpose phototransistor photocouplers	Datasheet	12,176In Stock	Cut Tape £0.361 £0.25 £0.179 £0.148 Reel £0.136 View £0.126 £0.124 £0.12 £0.107 MouseReel Available	Min.: 1 Mult.: 1 : 1,000
Transistor Output Optocouplers PTR 100%, 3.5KV 4N35S-TA1 LITEON 1: £0.353 14,226In Stock 15,000Expected 26/11/2026	Mfr. Part No. 4N35S-TA1 Mouser Part No 859-4N35S-TA1	LITEON	Transistor Output Optocouplers PTR 100%, 3.5KV Learn More about LITEON general purpose phototransistor photocouplers	Datasheet	14,226In Stock 15,000Expected 26/11/2026	Cut Tape £0.353 £0.24 £0.172 £0.141 Reel £0.128 View £0.117 £0.109 £0.106 MouseReel Available	Min.: 1 Mult.: 1 : 1,000
High Speed Optocouplers High Speed 1MBd Transistor Output 6N136S-TA1 LITEON 1: £0.705 35,381In Stock	Mfr. Part No. 6N136S-TA1 Mouser Part No 859-6N136STA1	LITEON	High Speed Optocouplers High Speed 1MBd Transistor Output Learn More about LITEON 1mbd transistor output photocoouplers	Datasheet	35,381In Stock	Cut Tape £0.705 £0.49 £0.357 £0.297 Reel £0.26 View £0.244 £0.236 £0.224 MouseReel Available	Min.: 1 Mult.: 1 : 1,000
High Speed Optocouplers High Speed 10MBd LogicGate Output 6N137 LITEON 1: £0.601 28,188In Stock	Mfr. Part No. 6N137 Mouser Part No 859-6N137	LITEON	High Speed Optocouplers High Speed 10MBd LogicGate Output Learn More about LITEON 10mbd logic gate 15mbd cmos photocouplers	Datasheet	28,188In Stock	£0.601 £0.499 £0.378 £0.32 View £0.298 £0.285 £0.271 £0.251 £0.235	Min.: 1 Mult.: 1
High Speed Optocouplers High Speed 10MBd LogicGate Output 6N137S LITEON 1: £0.684 18,665In Stock 1,900Expected 21/12/2026	Mfr. Part No. 6N137S Mouser Part No 859-6N137S	LITEON	High Speed Optocouplers High Speed 10MBd LogicGate Output Learn More about LITEON 10mbd logic gate 15mbd cmos photocouplers	Datasheet	18,665In Stock 1,900Expected 21/12/2026	£0.684 £0.475 £0.377 £0.325 View £0.303 £0.289 £0.275 £0.255 £0.238	Min.: 1 Mult.: 1
High Speed Optocouplers High Speed 10MBd LogicGate Output 6N137S-TA1 LITEON 1: £0.661 31,424In Stock 78,000On Order	Mfr. Part No. 6N137S-TA1 Mouser Part No 859-6N137STA1	LITEON	High Speed Optocouplers High Speed 10MBd LogicGate Output Learn More about LITEON 10mbd logic gate 15mbd cmos photocouplers	Datasheet	31,424In Stock 78,000On Order On Order Ship Dates Mfr. No: 6N137S-TA1 Stock: 31,424 Can Dispatch Immediately On Order: 38,000 Expected 16/11/2026 40,000 Expected 23/02/2027 Factory Lead Time: 18 Weeks	Cut Tape £0.661 £0.463 £0.34 £0.285 Reel £0.261 View £0.243 £0.228 £0.223 £0.218 MouseReel Available	Min.: 1 Mult.: 1 : 1,000
High Speed Optocouplers Darlington 100KBd Transistor Output 6N138 LITEON 1: £0.676 8,636In Stock	Mfr. Part No. 6N138 Mouser Part No 859-6N138	LITEON	High Speed Optocouplers Darlington 100KBd Transistor Output Learn More about LITEON 100kbd darlington output photocouplers	Datasheet	8,636In Stock	£0.676 £0.482 £0.349 £0.286 View £0.267 £0.255 £0.242 £0.224 £0.21	Min.: 1 Mult.: 1
High Speed Optocouplers Darlington 100KBd Transistor Output 6N138S-TA1 LITEON 1: £0.705 7,135In Stock	Mfr. Part No. 6N138S-TA1 Mouser Part No 859-6N138STA1	LITEON	High Speed Optocouplers Darlington 100KBd Transistor Output Learn More about LITEON 100kbd darlington output photocouplers	Datasheet	7,135In Stock	Cut Tape £0.705 £0.49 £0.357 £0.297 Reel £0.276 View £0.257 £0.242 £0.223 £0.217 MouseReel Available	Min.: 1 Mult.: 1 : 1,000
High Speed Optocouplers Darlington 100KBd Transistor Output 6N139 LITEON 1: £0.638 10,067In Stock 5,100Expected 24/05/2027	Mfr. Part No. 6N139 Mouser Part No 859-6N139	LITEON	High Speed Optocouplers Darlington 100KBd Transistor Output Learn More about LITEON 100kbd darlington output photocouplers	Datasheet	10,067In Stock 5,100Expected 24/05/2027	£0.638 £0.444 £0.323 £0.269 View £0.239 £0.223 £0.212 £0.202	Min.: 1 Mult.: 1
Transistor Output Optocouplers HCEV, 40%, 5KV CNY17-1S-TA1 LITEON 1: £0.473 10,520In Stock	Mfr. Part No. CNY17-1S-TA1 Mouser Part No 859-CNY17-1S-TA1	LITEON	Transistor Output Optocouplers HCEV, 40%, 5KV Learn More about LITEON general purpose phototransistor photocouplers	Datasheet	10,520In Stock	Cut Tape £0.473 £0.32 £0.227 £0.194 Reel £0.163 View £0.161 £0.149 £0.139 £0.126 MouseReel Available	Min.: 1 Mult.: 1 : 1,000
Transistor Output Optocouplers Optocoupler PTR 40%, 5KV, 6PIN CNY17-2S LITEON 1: £0.405 11,104In Stock	Mfr. Part No. CNY17-2S Mouser Part No 859-CNY17-2S	LITEON	Transistor Output Optocouplers Optocoupler PTR 40%, 5KV, 6PIN Learn More about LITEON general purpose phototransistor photocouplers	Datasheet	11,104In Stock	£0.405 £0.212 £0.192 £0.163 View £0.142 £0.131 £0.124 £0.108	Min.: 1 Mult.: 1
Transistor Output Optocouplers HCEV, 100%, 5KV CNY17F-3S-TA1 LITEON 1: £0.413 12,543In Stock	Mfr. Part No. CNY17F-3S-TA1 Mouser Part No 859-CNY17F-3S-TA1	LITEON	Transistor Output Optocouplers HCEV, 100%, 5KV Learn More about LITEON general purpose phototransistor photocouplers	Datasheet	12,543In Stock	Cut Tape £0.413 £0.287 £0.207 £0.17 Reel £0.158 View £0.142 £0.122 £0.118 MouseReel Available	Min.: 1 Mult.: 1 : 1,000
Transistor Output Optocouplers Optocoupler LTV-725VS-TA1 LITEON 1: £1.11 5,355In Stock 2,000Expected 16/11/2026	Mfr. Part No. LTV-725VS-TA1 Mouser Part No 859-LTV-725VS-TA1	LITEON	Transistor Output Optocouplers Optocoupler Learn More about LITEON darlington transistor output photocouplers	Datasheet	5,355In Stock 2,000Expected 16/11/2026	Cut Tape £1.11 £0.788 £0.592 £0.505 Reel £0.475 View £0.439 £0.416 £0.403 £0.402	Min.: 1 Mult.: 1 : 1,000
Transistor Output Optocouplers Optocoupler AC input LTV-814 LITEON 1: £0.383 12,009In Stock 63,000On Order	Mfr. Part No. LTV-814 Mouser Part No 859-LTV-814	LITEON	Transistor Output Optocouplers Optocoupler AC input Learn More about LITEON general purpose phototransistor photocouplers	Datasheet	12,009In Stock 63,000On Order On Order Ship Dates Mfr. No: LTV-814 Stock: 12,009 Can Dispatch Immediately On Order: 25,300 Expected 16/11/2026 37,700 Expected 22/01/2027 Factory Lead Time: 14 Weeks	£0.383 £0.262 £0.188 £0.154 View £0.134 £0.123 £0.107	Min.: 1 Mult.: 1
Transistor Output Optocouplers Optocoupler AC input LTV-8141S LITEON 1: £0.736 7,791In Stock	Mfr. Part No. LTV-8141S Mouser Part No 859-LTV-8141S	LITEON	Transistor Output Optocouplers Optocoupler AC input Learn More about LITEON darlington transistor output photocouplers	Datasheet	7,791In Stock	£0.736 £0.513 £0.305 £0.28 View £0.275 £0.262 £0.243 £0.242	Min.: 1 Mult.: 1
Transistor Output Optocouplers Optocoupler AC input LTV-814S LITEON 1: £0.593 25,587In Stock 1,575On Order	Mfr. Part No. LTV-814S Mouser Part No 859-LTV-814S	LITEON	Transistor Output Optocouplers Optocoupler AC input Learn More about LITEON general purpose phototransistor photocouplers	Datasheet	25,587In Stock 1,575On Order	£0.593 £0.39 £0.182 £0.16 View £0.151 £0.147 £0.139 £0.126	Min.: 1 Mult.: 1
Transistor Output Optocouplers Optocoupler Phototrans LTV-816S LITEON 1: £0.465 82,506In Stock	Mfr. Part No. LTV-816S Mouser Part No 859-LTV-816S	LITEON	Transistor Output Optocouplers Optocoupler Phototrans Learn More about LITEON general purpose phototransistor photocouplers	Datasheet	82,506In Stock	£0.465 £0.303 £0.141 £0.125 View £0.117 £0.113 £0.112 £0.108 £0.107	Min.: 1 Mult.: 1
Transistor Output Optocouplers Optocoupler 50% 5kv 4Pin SMT LTV-817B LITEON 1: £0.63 14,891In Stock 4,600Expected 29/12/2026	Mfr. Part No. LTV-817B Mouser Part No 859-LTV-817B	LITEON	Transistor Output Optocouplers Optocoupler 50% 5kv 4Pin SMT Learn More about LITEON general purpose phototransistor photocouplers	Datasheet	14,891In Stock 4,600Expected 29/12/2026	£0.63 £0.423 £0.194 £0.134 View £0.122 £0.114 £0.107 £0.10 £0.092	Min.: 1 Mult.: 1
Transistor Output Optocouplers Optocoupler Phototrans LTV-817S LITEON 1: £0.368 30,014In Stock 39,000Expected 21/12/2026	Mfr. Part No. LTV-817S Mouser Part No 859-LTV-817S	LITEON	Transistor Output Optocouplers Optocoupler Phototrans Learn More about LITEON general purpose phototransistor photocouplers	Datasheet	30,014In Stock 39,000Expected 21/12/2026	£0.368 £0.251 £0.13 £0.118 View £0.113 £0.11 £0.107 £0.10 £0.092	Min.: 1 Mult.: 1
Transistor Output Optocouplers Optocoupler LTV-817S-TA LITEON 1: £0.33 57,748In Stock	Mfr. Part No. LTV-817S-TA Mouser Part No 859-LTV-817S-TA	LITEON	Transistor Output Optocouplers Optocoupler Learn More about LITEON general purpose phototransistor photocouplers	Datasheet	57,748In Stock	Cut Tape £0.33 £0.224 £0.16 £0.13 Reel £0.118 View £0.107 £0.10 £0.096 £0.089 MouseReel Available	Min.: 1 Mult.: 1 : 1,000
Transistor Output Optocouplers Optocoupler AC in 2-CHNL LTV-824 LITEON 1: £0.803 7,417In Stock	Mfr. Part No. LTV-824 Mouser Part No 859-LTV-824	LITEON	Transistor Output Optocouplers Optocoupler AC in 2-CHNL Learn More about LITEON general purpose phototransistor photocouplers	Datasheet	7,417In Stock	£0.803 £0.521 £0.417 £0.341 View £0.32 £0.304 £0.289 £0.268 £0.251	Min.: 1 Mult.: 1
Transistor Output Optocouplers Optocoupler LTV-8241 LITEON 1: £1.13 3,425In Stock	Mfr. Part No. LTV-8241 Mouser Part No 859-LTV-8241	LITEON	Transistor Output Optocouplers Optocoupler Learn More about LITEON darlington transistor output photocouplers	Datasheet	3,425In Stock	£1.13 £0.652 £0.595 £0.504 View £0.458 £0.448 £0.428 £0.398	Min.: 1 Mult.: 1
Transistor Output Optocouplers Optocoupler LTV-824S-TA1 LITEON 1: £0.721 7,470In Stock	Mfr. Part No. LTV-824S-TA1 Mouser Part No 859-LTV-824S-TA1	LITEON	Transistor Output Optocouplers Optocoupler Learn More about LITEON general purpose phototransistor photocouplers	Datasheet	7,470In Stock	Cut Tape £0.721 £0.501 £0.369 £0.31 Reel £0.291 View £0.265 £0.25 £0.241 £0.233 MouseReel Available	Min.: 1 Mult.: 1 : 1,000
Transistor Output Optocouplers Optocplr Phototrans 2-CHNL LTV-827 LITEON 1: £0.405 17,818In Stock	Mfr. Part No. LTV-827 Mouser Part No 859-LTV-827	LITEON	Transistor Output Optocouplers Optocplr Phototrans 2-CHNL Learn More about LITEON general purpose phototransistor photocouplers	Datasheet	17,818In Stock	£0.405 £0.368 £0.26 £0.215 View £0.196 £0.185 £0.171 £0.16 £0.148	Min.: 1 Mult.: 1

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Optocouplers / Photocouplers

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