Optocouplers/Photocouplers – Mouser United Kingdom

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General-Purpose Phototransistor Photocouplers

LITEON General-Purpose Phototransistor Photocouplers are designed to provide reliable optical isolation and signal transmission in a wide range of electronic applications. These LITEON devices feature a phototransistor output that enables effective switching and signal coupling between input and output circuits while maintaining electrical isolation of up to 5000V_RMS. With current transfer ratios (CTR) typically ranging from 20% to over 320%, and options for single or dual-channel configurations, the photocouplers are well-suited for use in microprocessor interfaces, control systems, and data communication circuits. Many models offer compact DIP or SOP packaging, wide operating temperature ranges, and compliance with international safety standards such as UL and VDE. The versatility, cost-effectiveness, and robust performance make these components ideal for both consumer electronics and industrial automation systems.

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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 SO8 100-200% 3.75KV 2CH Optocoupler LTV-207 LITEON 1: £0.89 10,374In Stock	Mfr. Part No. LTV-207 Mouser Part No 859-LTV-207	LITEON	Transistor Output Optocouplers SO8 100-200% 3.75KV 2CH Optocoupler Learn More about LITEON general purpose phototransistor photocouplers	Datasheet	10,374In Stock	Cut Tape £0.89 £0.627 £0.466 £0.395 Reel £0.351 View £0.372 £0.31 £0.294 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	6 V	3 us		SMD/SMT	SOP-8	2 Channel	Phototransistor
Transistor Output Optocouplers SO8 100% 3.75KV 2CH Optocoupler LTV-208 LITEON 1: £0.89 4,639In Stock	Mfr. Part No. LTV-208 Mouser Part No 859-LTV-208	LITEON	Transistor Output Optocouplers SO8 100% 3.75KV 2CH Optocoupler Learn More about LITEON general purpose phototransistor photocouplers	Datasheet	4,639In Stock	Cut Tape £0.89 £0.627 £0.466 £0.395 Reel £0.335 View £0.372 £0.31 £0.304 £0.298 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	6 V	3 us		SMD/SMT	SOP-8	2 Channel	NPN Phototransistor
Transistor Output Optocouplers Optocoupler 50% 5kv 4Pin SMT LTV-817S-D LITEON 1: £0.33 28,076In Stock	Mfr. Part No. LTV-817S-D Mouser Part No 859-LTV-817S-D	LITEON	Transistor Output Optocouplers Optocoupler 50% 5kv 4Pin SMT Learn More about LITEON general purpose phototransistor photocouplers	Datasheet	28,076In Stock	£0.33 £0.224 £0.16 £0.127 View £0.113 £0.11 £0.104 £0.095	Min.: 1 Mult.: 1	6 V	18 us	50 mA	SMD/SMT	PDIP-4 Gull Wing	1 Channel	NPN Phototransistor
Transistor Output Optocouplers OPTOCOUPLER, AC, 600%, 5KV, 4 PIN, HALOGEN-FREE, T/R LTV-217-D-G LITEON 1: £0.548 5,577In Stock	Mfr. Part No. LTV-217-D-G Mouser Part No 859-LTV-217-D-G	LITEON	Transistor Output Optocouplers OPTOCOUPLER, AC, 600%, 5KV, 4 PIN, HALOGEN-FREE, T/R Learn More about LITEON general purpose phototransistor photocouplers	Datasheet	5,577In Stock	Cut Tape £0.548 £0.36 £0.24 £0.167 Reel £0.141 View £0.153 £0.133 £0.125 £0.113 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	4 V	18 us	50 mA	SMD/SMT	SSOP-4	1 Channel	Phototransistor
Transistor Output Optocouplers HCEV, 160%, 5KV CNY17F-4S-TA LITEON 1: £0.503 4,906In Stock	Mfr. Part No. CNY17F-4S-TA Mouser Part No 859-CNY17F-4S-TA	LITEON	Transistor Output Optocouplers HCEV, 160%, 5KV Learn More about LITEON general purpose phototransistor photocouplers	Datasheet	4,906In Stock	Cut Tape £0.503 £0.331 £0.222 £0.158 Reel £0.134 View £0.13 £0.122 £0.101 £0.099 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	6 V	10 us	150 mA	SMD/SMT	PDIP-6 Gull Wing	1 Channel	NPN Phototransistor
Transistor Output Optocouplers P/C LTV817B-V STD. TYPE VDE LTV817B-V LITEON 1: £0.361 5,552In Stock	Mfr. Part No. LTV817B-V Mouser Part No 859-LTV817B-V	LITEON	Transistor Output Optocouplers P/C LTV817B-V STD. TYPE VDE Learn More about LITEON general purpose phototransistor photocouplers	Datasheet	5,552In Stock	Cut Tape £0.361 £0.237 £0.158 £0.113 Reel £0.096 View £0.093 £0.087 £0.082 £0.074	Min.: 1 Mult.: 1 : 1,000	6 V	18 us	30 mA	SMD/SMT	SMD-4	1 Channel	Phototransistor
Transistor Output Optocouplers PTR 20%, 2.5KV 4N26S-TA1 LITEON 1: £0.533 3,890In Stock	Mfr. Part No. 4N26S-TA1 Mouser Part No 859-4N26S-TA1	LITEON	Transistor Output Optocouplers PTR 20%, 2.5KV Learn More about LITEON general purpose phototransistor photocouplers	Datasheet	3,890In Stock	Cut Tape £0.533 £0.347 £0.232 £0.165 Reel £0.14 View £0.136 £0.112 £0.105 £0.10 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	6 V	3 us	100 mA	SMD/SMT	PDIP-6 Gull Wing	1 Channel	NPN Phototransistor
Transistor Output Optocouplers Optocoupler Phototrans LTV-702V LITEON 1: £0.496 59In Stock	Mfr. Part No. LTV-702V Mouser Part No 859-LTV-702V	LITEON	Transistor Output Optocouplers Optocoupler Phototrans Learn More about LITEON general purpose phototransistor photocouplers	Datasheet	59In Stock	£0.496 £0.325 £0.217 £0.149 View £0.137 £0.127 £0.106 £0.099 £0.094	Min.: 1 Mult.: 1	6 V	7 us	50 mA	Through Hole	PDIP-6	1 Channel	NPN Phototransistor
Transistor Output Optocouplers Optocoupler LTV-702VB LITEON 1: £0.533 5,055In Stock	Mfr. Part No. LTV-702VB Mouser Part No 859-LTV-702VB	LITEON	Transistor Output Optocouplers Optocoupler Learn More about LITEON general purpose phototransistor photocouplers	Datasheet	5,055In Stock	£0.533 £0.347 £0.231 £0.16 View £0.147 £0.136 £0.127 £0.114 £0.105	Min.: 1 Mult.: 1	6 V	7 us	50 mA	Through Hole		1 Channel	NPN Phototransistor
Transistor Output Optocouplers Optocoupler LTV-702VS-TA1 LITEON 1: £0.45 784In Stock 6,000Expected 26/10/2026	Mfr. Part No. LTV-702VS-TA1 Mouser Part No 859-LTV-702VS-TA1	LITEON	Transistor Output Optocouplers Optocoupler Learn More about LITEON general purpose phototransistor photocouplers	Datasheet	784In Stock 6,000Expected 26/10/2026	Cut Tape £0.45 £0.303 £0.216 £0.182 Reel £0.154 View £0.148 £0.127 £0.12 £0.115 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	6 V	7 us	50 mA	SMD/SMT	PDIP-6 Gull Wing	1 Channel	NPN Phototransistor
Transistor Output Optocouplers Optocoupler Phototrans LTV-702FS LITEON 1: £0.496 3,054In Stock	Mfr. Part No. LTV-702FS Mouser Part No 859-LTV-702FS	LITEON	Transistor Output Optocouplers Optocoupler Phototrans Learn More about LITEON general purpose phototransistor photocouplers	Datasheet	3,054In Stock	£0.496 £0.325 £0.217 £0.149 View £0.137 £0.127 £0.107 £0.099 £0.095	Min.: 1 Mult.: 1	6 V	7 us	50 mA	SMD/SMT	PDIP-6 Gull Wing	1 Channel	NPN Phototransistor
Transistor Output Optocouplers HCEV, 63%, 5KV CNY17F-2 LITEON 1: £0.346 7,730In Stock	Mfr. Part No. CNY17F-2 Mouser Part No 859-CNY17F-2	LITEON	Transistor Output Optocouplers HCEV, 63%, 5KV Learn More about LITEON general purpose phototransistor photocouplers	Datasheet	7,730In Stock	£0.346 £0.18 £0.153 £0.12 View £0.111 £0.107 £0.105 £0.099	Min.: 1 Mult.: 1	6 V	10 us	150 mA	Through Hole	PDIP-6	1 Channel	NPN Phototransistor
Transistor Output Optocouplers Optocoupler AC input LTV-733 LITEON 1: £0.578 6,191In Stock	Mfr. Part No. LTV-733 Mouser Part No 859-LTV-733	LITEON	Transistor Output Optocouplers Optocoupler AC input Learn More about LITEON general purpose phototransistor photocouplers	Datasheet	6,191In Stock	£0.578 £0.40 £0.29 £0.237 View £0.223 £0.212 £0.175 £0.173 £0.163	Min.: 1 Mult.: 1		18 us	50 mA	Through Hole	PDIP-6	1 Channel	NPN Phototransistor
Transistor Output Optocouplers PTR 100%, 3.5KV 4N35S LITEON 1: £0.496 9,067In Stock	Mfr. Part No. 4N35S Mouser Part No 859-4N35S	LITEON	Transistor Output Optocouplers PTR 100%, 3.5KV Learn More about LITEON general purpose phototransistor photocouplers	Datasheet	9,067In Stock	£0.496 £0.18 £0.14 £0.121 View £0.115 £0.113 £0.102	Min.: 1 Mult.: 1	6 V	10 us	100 mA	SMD/SMT	PDIP-6 Gull Wing	1 Channel	NPN Phototransistor
Transistor Output Optocouplers Optocoupler Phototrans LTV-354T LITEON 1: £0.405 115,502In Stock	Mfr. Part No. LTV-354T Mouser Part No 859-LTV-354T	LITEON	Transistor Output Optocouplers Optocoupler Phototrans Learn More about LITEON general purpose phototransistor photocouplers	Datasheet	115,502In Stock	Cut Tape £0.405 £0.276 £0.199 £0.163 Reel £0.136 View £0.153 £0.127 £0.119 £0.113 MouseReel Available	Min.: 1 Mult.: 1 : 3,000		18 us	50 mA	SMD/SMT	SMD-4	1 Channel	NPN Phototransistor
Transistor Output Optocouplers PTR 50% 5KV 16 PIN 4CH Optocoupler LTV-247 LITEON 1: £1.02 41,705In Stock 24,000Expected 04/11/2026	Mfr. Part No. LTV-247 Mouser Part No 859-LTV-247	LITEON	Transistor Output Optocouplers PTR 50% 5KV 16 PIN 4CH Optocoupler Learn More about LITEON general purpose phototransistor photocouplers	Datasheet	41,705In Stock 24,000Expected 04/11/2026	Cut Tape £1.02 £0.719 £0.539 £0.457 Reel £0.40 View £0.431 £0.38 £0.356 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	6 V	18 us	50 mA	SMD/SMT	SOP-16	4 Channel	NPN Phototransistor
Transistor Output Optocouplers Optocoupler AC in 4-CHNL LTV-844S LITEON 1: £1.36 32,446In Stock 63,375On Order	Mfr. Part No. LTV-844S Mouser Part No 859-LTV-844S	LITEON	Transistor Output Optocouplers Optocoupler AC in 4-CHNL Learn More about LITEON general purpose phototransistor photocouplers	Datasheet	32,446In Stock 63,375On Order On Order Ship Dates Mfr. No: LTV-844S Stock: 32,446 Can Dispatch Immediately On Order: 6,425 Expected 26/10/2026 56,950 Expected 26/11/2026 Factory Lead Time: 14 Weeks	£1.36 £0.952 £0.725 £0.621 View £0.587 £0.558 £0.533 £0.506	Min.: 1 Mult.: 1		18 us	50 mA	SMD/SMT	SMD-DIP-16	4 Channel	NPN Phototransistor
Transistor Output Optocouplers Optocplr Phototrans 4-Channel LTV-846S LITEON 1: £1.13 63,339In Stock 103,150On Order	Mfr. Part No. LTV-846S Mouser Part No 859-LTV-846S	LITEON	Transistor Output Optocouplers Optocplr Phototrans 4-Channel Learn More about LITEON general purpose phototransistor photocouplers	Datasheet	63,339In Stock 103,150On Order On Order Ship Dates Mfr. No: LTV-846S Stock: 63,339 Can Dispatch Immediately On Order: 25,800 Expected 26/10/2026 77,350 Expected 28/12/2026 Factory Lead Time: 14 Weeks	£1.13 £0.726 £0.575 £0.489 View £0.45 £0.436 £0.414 £0.388 £0.362	Min.: 1 Mult.: 1	6 V	18 us	50 mA	SMD/SMT	PDIP-16 Gull Wing	4 Channel	NPN Phototransistor
Transistor Output Optocouplers Optocplr Phototrans 4-CHNL LTV-847 LITEON 1: £1.13 52,317In Stock	Mfr. Part No. LTV-847 Mouser Part No 859-LTV-847	LITEON	Transistor Output Optocouplers Optocplr Phototrans 4-CHNL Learn More about LITEON general purpose phototransistor photocouplers	Datasheet	52,317In Stock	£1.13 £0.766 £0.581 £0.485 View £0.455 £0.427 £0.407 £0.376 £0.352	Min.: 1 Mult.: 1	6 V	18 us	50 mA	Through Hole	PDIP-16	4 Channel	NPN Phototransistor
Transistor Output Optocouplers Optocoupler, AC 600%, 5KV, 4 PIN LTV-217-C-G LITEON 1: £0.375 125,685In Stock	Mfr. Part No. LTV-217-C-G Mouser Part No 859-LTV217CG	LITEON	Transistor Output Optocouplers Optocoupler, AC 600%, 5KV, 4 PIN Learn More about LITEON general purpose phototransistor photocouplers	Datasheet	125,685In Stock	Cut Tape £0.375 £0.257 £0.185 £0.152 Reel £0.126 View £0.141 £0.12 £0.109 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	6 V	18 us	50 mA	SMD/SMT	SSOP-4	1 Channel	NPN Phototransistor
Transistor Output Optocouplers P/C LTV-356T-TP1-B (2.0) STD. TYPE LTV-356T-TP1-B LITEON 1: £0.217 7,941In Stock	Mfr. Part No. LTV-356T-TP1-B Mouser Part No 859-LTV-356T-TP1-B	LITEON	Transistor Output Optocouplers P/C LTV-356T-TP1-B (2.0) STD. TYPE Learn More about LITEON general purpose phototransistor photocouplers	Datasheet	7,941In Stock	Cut Tape £0.217 £0.147 £0.103 £0.083 Reel £0.078 View £0.071 £0.057 £0.054	Min.: 1 Mult.: 1 : 3,000	6 V	4 us	50 mA	SMD/SMT	SMD-4	1 Channel	NPN Phototransistor
Transistor Output Optocouplers P/C LTV-354T-A STD. TYPE LTV-354T-A LITEON 1: £0.436 19,518In Stock	Mfr. Part No. LTV-354T-A Mouser Part No 859-LTV-354T-A	LITEON	Transistor Output Optocouplers P/C LTV-354T-A STD. TYPE Learn More about LITEON general purpose phototransistor photocouplers	Datasheet	19,518In Stock	Cut Tape £0.436 £0.299 £0.216 £0.178 Reel £0.148 View £0.166 £0.141 £0.139 £0.127 MouseReel Available	Min.: 1 Mult.: 1 : 3,000		18 us	50 mA	SMD/SMT		1 Channel	NPN Phototransistor
Transistor Output Optocouplers Optocoupler Phototrans LTV-356T LITEON 1: £0.323 105,374In Stock 69,000Expected 16/11/2026	Mfr. Part No. LTV-356T Mouser Part No 859-LTV-356T	LITEON	Transistor Output Optocouplers Optocoupler Phototrans Learn More about LITEON general purpose phototransistor photocouplers	Datasheet	105,374In Stock 69,000Expected 16/11/2026	Cut Tape £0.323 £0.22 £0.157 £0.128 Reel £0.106 View £0.119 £0.10 £0.091 £0.088 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	6 V	4 us	50 mA	SMD/SMT	SMD-4	1 Channel	NPN Phototransistor
Transistor Output Optocouplers P/C LTV-356T BIN B (2.0) STD. TYPE LTV-356T-B LITEON 1: £0.368 42,029In Stock 63,000Expected 04/01/2027	Mfr. Part No. LTV-356T-B Mouser Part No 859-LTV-356T-B	LITEON	Transistor Output Optocouplers P/C LTV-356T BIN B (2.0) STD. TYPE Learn More about LITEON general purpose phototransistor photocouplers	Datasheet	42,029In Stock 63,000Expected 04/01/2027	Cut Tape £0.368 £0.251 £0.18 £0.148 Reel £0.122 View £0.137 £0.115 £0.105 £0.102 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	6 V	4 us	50 mA	SMD/SMT		1 Channel	NPN Phototransistor
Transistor Output Optocouplers P/C LTV-356T BIN C (2.0) STD. TYPE LTV-356T-C LITEON 1: £0.346 13,244In Stock	Mfr. Part No. LTV-356T-C Mouser Part No 859-LTV-356T-C	LITEON	Transistor Output Optocouplers P/C LTV-356T BIN C (2.0) STD. TYPE Learn More about LITEON general purpose phototransistor photocouplers	Datasheet	13,244In Stock	Cut Tape £0.346 £0.237 £0.169 £0.139 Reel £0.123 View £0.129 £0.116 £0.10 £0.097 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	6 V	4 us	50 mA	SMD/SMT		1 Channel	NPN Phototransistor