Optocouplers/Photocouplers

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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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Types of Optocouplers/Photocouplers

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (USD) 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 P/C LTV-816S-TA1-D TAPPING TYPE II LTV-816S-TA1-D LITEON 1: $0.40 12,900In Stock 12,000Expected 01/12/2026	Mfr. Part No. LTV-816S-TA1-D Mouser Part No 859-LTV-816S-TA1-D	LITEON	Transistor Output Optocouplers P/C LTV-816S-TA1-D TAPPING TYPE II Learn More about LITEON general purpose phototransistor photocouplers	Datasheet	12,900In Stock 12,000Expected 01/12/2026	Cut Tape $0.40 $0.275 $0.196 $0.16 Reel $0.147 View $0.132 $0.123 $0.119 $0.109 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	6 V	18 us	50 mA	SMD/SMT		1 Channel	NPN Phototransistor
Transistor Output Optocouplers Optocoupler 50% 5kv 4Pin SMT LTV-817S-TA1-A LITEON 1: $0.40 2,959In Stock 5,000Expected 19/10/2026	Mfr. Part No. LTV-817S-TA1-A Mouser Part No 859-LTV-817S-TA1-A	LITEON	Transistor Output Optocouplers Optocoupler 50% 5kv 4Pin SMT Learn More about LITEON general purpose phototransistor photocouplers	Datasheet	2,959In Stock 5,000Expected 19/10/2026	Cut Tape $0.40 $0.275 $0.196 $0.16 Reel $0.141 View $0.13 $0.122 $0.117 $0.109 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	6 V	18 us	50 mA	SMD/SMT	PDIP-4 Gull Wing	1 Channel	NPN Phototransistor
Transistor Output Optocouplers Optocoupler 50% 5kv 4Pin SMT LTV-817S-TA1-B LITEON 1: $0.43 487In Stock 10,000Expected 04/12/2026	Mfr. Part No. LTV-817S-TA1-B Mouser Part No 859-LTV-817S-TA1-B	LITEON	Transistor Output Optocouplers Optocoupler 50% 5kv 4Pin SMT Learn More about LITEON general purpose phototransistor photocouplers	Datasheet	487In Stock 10,000Expected 04/12/2026	Cut Tape $0.43 $0.292 $0.208 $0.169 Reel $0.145 View $0.134 $0.125 $0.119 $0.115 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	6 V	18 us	50 mA	SMD/SMT	PDIP-4 Gull Wing	1 Channel	NPN Phototransistor
Transistor Output Optocouplers Optocoupler 50% 5kv 4Pin SMT LTV-817S-TA1-C LITEON 1: $0.43 5,590In Stock	Mfr. Part No. LTV-817S-TA1-C Mouser Part No 859-LTV-817S-TA1-C	LITEON	Transistor Output Optocouplers Optocoupler 50% 5kv 4Pin SMT Learn More about LITEON general purpose phototransistor photocouplers	Datasheet	5,590In Stock	Cut Tape $0.43 $0.292 $0.208 $0.169 Reel $0.144 View $0.134 $0.123 $0.113 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	6 V	18 us	50 mA	SMD/SMT	PDIP-4 Gull Wing	1 Channel	NPN Phototransistor
Transistor Output Optocouplers Optocoupler LTV-826S-TA LITEON 1: $0.57 940In Stock 10,000Expected 16/10/2026	Mfr. Part No. LTV-826S-TA Mouser Part No 859-LTV-826S-TA	LITEON	Transistor Output Optocouplers Optocoupler Learn More about LITEON general purpose phototransistor photocouplers	Datasheet	940In Stock 10,000Expected 16/10/2026	Cut Tape $0.57 $0.395 $0.285 $0.235 Reel $0.218 View $0.197 $0.184 $0.175 $0.17 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	6 V	18 us	50 mA	SMD/SMT	PDIP-8 Gull Wing	2 Channel	NPN Phototransistor
Transistor Output Optocouplers Optocoupler AC in 4-CHNL LTV-844HS LITEON 1: $1.61 770In Stock	Mfr. Part No. LTV-844HS Mouser Part No 859-LTV-844HS	LITEON	Transistor Output Optocouplers Optocoupler AC in 4-CHNL Learn More about LITEON general purpose phototransistor photocouplers	Datasheet	770In Stock	$1.61 $1.02 $0.861 $0.737 View $0.663 $0.622 $0.597 $0.575	Min.: 1 Mult.: 1		18 us	80 mA	SMD/SMT	PDIP-16 Gull Wing	4 Channel	Phototransistor
Transistor Output Optocouplers Optocoupler LTV-852S-TA1 LITEON 1: $0.91 286In Stock	Mfr. Part No. LTV-852S-TA1 Mouser Part No 859-LTV-852S-TA1	LITEON	Transistor Output Optocouplers Optocoupler Learn More about LITEON darlington transistor output photocouplers	Datasheet	286In Stock	Cut Tape $0.91 $0.632 $0.459 $0.382 Reel $0.344 View $0.319 $0.298 $0.279	Min.: 1 Mult.: 1 : 1,000	6 V	300 us	150 mA	SMD/SMT	PDIP-4 Gull Wing	1 Channel	Photodarlington
Transistor Output Optocouplers P/C LTV356TB-V STD. TYPE (VDE) LTV356TB-V LITEON 1: $0.37 1,118In Stock 6,000Expected 26/10/2026	Mfr. Part No. LTV356TB-V Mouser Part No 859-LTV356TB-V	LITEON	Transistor Output Optocouplers P/C LTV356TB-V STD. TYPE (VDE) Learn More about LITEON general purpose phototransistor photocouplers	Datasheet	1,118In Stock 6,000Expected 26/10/2026	Cut Tape $0.37 $0.254 $0.18 $0.147 Reel $0.121 View $0.136 $0.111 $0.103 $0.099 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	6 V	18 us	50 mA	SMD/SMT		1 Channel	NPN Phototransistor
Transistor Output Optocouplers P/C LTV826STA1-V TAPPING TYPE II, VDE LTV826STA1-V LITEON 1: $0.76 1,729In Stock	Mfr. Part No. LTV826STA1-V Mouser Part No 859-LTV826STA1-V	LITEON	Transistor Output Optocouplers P/C LTV826STA1-V TAPPING TYPE II, VDE Learn More about LITEON general purpose phototransistor photocouplers	Datasheet	1,729In Stock	Cut Tape $0.76 $0.529 $0.386 $0.322 Reel $0.30 View $0.273 $0.252 $0.239 $0.232	Min.: 1 Mult.: 1 : 1,000	6 V	18 us	50 mA	SMD/SMT		2 Channel	NPN Phototransistor
Triac & SCR Output Optocouplers Optocoupler TRIAC MOC3020 LITEON 1: $0.72 7,896In Stock	Mfr. Part No. MOC3020 Mouser Part No 859-MOC3020	LITEON	Triac & SCR Output Optocouplers Optocoupler TRIAC Learn More about LITEON moc30x triac output photocouplers	Datasheet	7,896In Stock	$0.72 $0.555 $0.393 $0.339 View $0.242 $0.224	Min.: 1 Mult.: 1				Through Hole	DIP-6	1 Channel	PhotoTriac
Triac & SCR Output Optocouplers Optocoupler TRIAC MOC3020S LITEON 1: $0.65 4,485In Stock	Mfr. Part No. MOC3020S Mouser Part No 859-MOC3020S	LITEON	Triac & SCR Output Optocouplers Optocoupler TRIAC Learn More about LITEON moc30x triac output photocouplers	Datasheet	4,485In Stock	$0.65 $0.344 $0.314 $0.268 View $0.235 $0.218 $0.201 $0.19	Min.: 1 Mult.: 1				SMD/SMT	SMD-6 Gull Wing	1 Channel	PhotoTriac
Triac & SCR Output Optocouplers Optocoupler TRIAC MOC3020S-TA LITEON 1: $0.66 6,761In Stock	Mfr. Part No. MOC3020S-TA Mouser Part No 859-MOC3020S-TA	LITEON	Triac & SCR Output Optocouplers Optocoupler TRIAC Learn More about LITEON moc30x triac output photocouplers	Datasheet	6,761In Stock	Cut Tape $0.66 $0.458 $0.332 $0.275 Reel $0.256 View $0.232 $0.217 $0.212 $0.204 MouseReel Available	Min.: 1 Mult.: 1 : 1,000				SMD/SMT	SMD-6 Gull Wing	1 Channel	PhotoTriac
Triac & SCR Output Optocouplers Optocoupler TRIAC MOC3023S-TA LITEON 1: $0.68 426In Stock	Mfr. Part No. MOC3023S-TA Mouser Part No 859-MOC3023S-TA	LITEON	Triac & SCR Output Optocouplers Optocoupler TRIAC Learn More about LITEON moc30x triac output photocouplers	Datasheet	426In Stock	Cut Tape $0.68 $0.47 $0.341 $0.282 Reel $0.258 View $0.236 $0.221 $0.205 $0.196 MouseReel Available	Min.: 1 Mult.: 1 : 1,000				SMD/SMT	SMD-6 Gull Wing	1 Channel	PhotoTriac
Triac & SCR Output Optocouplers 10MBd, dual, open-drain LITEON LTV-063L LTV-063L LITEON 1: $2.03 4,000In Stock New At Mouser	Mfr. Part No. LTV-063L Mouser Part No 859-LTV-063L New At Mouser	LITEON	Triac & SCR Output Optocouplers 10MBd, dual, open-drain Learn More about LITEON lite on optocouplers	Datasheet	4,000In Stock	Cut Tape $2.03 $1.46 $1.11 $0.957 Reel $0.864 View $0.908 $0.81 $0.79	Min.: 1 Mult.: 1 : 2,000
Transistor Output Optocouplers PTR 20%, 2.5KV 4N25M LITEON 1: $0.46 4,316In Stock	Mfr. Part No. 4N25M Mouser Part No 859-4N25M	LITEON	Transistor Output Optocouplers PTR 20%, 2.5KV Learn More about LITEON general purpose phototransistor photocouplers	Datasheet	4,316In Stock	$0.46 $0.24 $0.217 $0.184 View $0.159 $0.143 $0.135 $0.126	Min.: 1 Mult.: 1	6 V	3 us	100 mA	Through Hole	PDIP-6	1 Channel	NPN Phototransistor
Transistor Output Optocouplers PTR 20%, 2.5KV 4N25S LITEON 1: $0.55 7,155In Stock	Mfr. Part No. 4N25S Mouser Part No 859-4N25S	LITEON	Transistor Output Optocouplers PTR 20%, 2.5KV Learn More about LITEON general purpose phototransistor photocouplers	Datasheet	7,155In Stock	$0.55 $0.24 $0.186 $0.179 View $0.171 $0.166 $0.153 $0.148	Min.: 1 Mult.: 1	6 V	3 us	100 mA	SMD/SMT	PDIP-6 Gull Wing	1 Channel	NPN Phototransistor
Transistor Output Optocouplers PTR 20%, 2.5KV 4N26 LITEON 1: $0.44 5,644In Stock	Mfr. Part No. 4N26 Mouser Part No 859-4N26	LITEON	Transistor Output Optocouplers PTR 20%, 2.5KV Learn More about LITEON general purpose phototransistor photocouplers	Datasheet	5,644In Stock	$0.44 $0.226 $0.205 $0.167 View $0.15 $0.147 $0.138 $0.131 $0.122	Min.: 1 Mult.: 1	6 V	3 us	100 mA	Through Hole	PDIP-6	1 Channel	NPN Phototransistor
Transistor Output Optocouplers PTR 20%, 2.5KV 4N26M LITEON 1: $0.66 4,969In Stock	Mfr. Part No. 4N26M Mouser Part No 859-4N26M	LITEON	Transistor Output Optocouplers PTR 20%, 2.5KV Learn More about LITEON general purpose phototransistor photocouplers	Datasheet	4,969In Stock	$0.66 $0.433 $0.289 $0.199 View $0.183 $0.17 $0.139 $0.131 $0.125	Min.: 1 Mult.: 1	6 V	3 us	100 mA	Through Hole	PDIP-6	1 Channel	NPN Phototransistor
Transistor Output Optocouplers PTR 20%, 2.5KV 4N26S LITEON 1: $0.46 7,856In Stock	Mfr. Part No. 4N26S Mouser Part No 859-4N26S	LITEON	Transistor Output Optocouplers PTR 20%, 2.5KV Learn More about LITEON general purpose phototransistor photocouplers	Datasheet	7,856In Stock	$0.46 $0.24 $0.217 $0.184 View $0.183 $0.17 $0.16 $0.136 $0.127	Min.: 1 Mult.: 1	6 V	3 us	100 mA	SMD/SMT	PDIP-6 Gull Wing	1 Channel	NPN Phototransistor
Transistor Output Optocouplers CTR 10%, 1.5KV 4N27 LITEON 1: $0.44 249In Stock 6,240Expected 06/10/2026	Mfr. Part No. 4N27 Mouser Part No 859-4N27	LITEON	Transistor Output Optocouplers CTR 10%, 1.5KV Learn More about LITEON general purpose phototransistor photocouplers	Datasheet	249In Stock 6,240Expected 06/10/2026	$0.44 $0.226 $0.205 $0.169 View $0.15 $0.147 $0.133 $0.127 $0.119	Min.: 1 Mult.: 1	6 V	3 us	100 mA	Through Hole	PDIP-6	1 Channel	NPN Phototransistor
Transistor Output Optocouplers PTR 20%, 1.5KV 4N27M LITEON 1: $0.66 359In Stock	Mfr. Part No. 4N27M Mouser Part No 859-4N27M	LITEON	Transistor Output Optocouplers PTR 20%, 1.5KV Learn More about LITEON general purpose phototransistor photocouplers	Datasheet	359In Stock	$0.66 $0.433 $0.289 $0.199 View $0.183 $0.17 $0.139 $0.132 $0.122	Min.: 1 Mult.: 1	6 V	3 us	100 mA	Through Hole	PDIP-6	1 Channel	NPN Phototransistor
Transistor Output Optocouplers PTR 10%, 0.5KV 4N28 LITEON 1: $0.44 585In Stock 6,240Expected 05/10/2026	Mfr. Part No. 4N28 Mouser Part No 859-4N28	LITEON	Transistor Output Optocouplers PTR 10%, 0.5KV Learn More about LITEON general purpose phototransistor photocouplers	Datasheet	585In Stock 6,240Expected 05/10/2026	$0.44 $0.226 $0.205 $0.173 View $0.15 $0.135 $0.128 $0.12	Min.: 1 Mult.: 1	6 V	3 us	100 mA	Through Hole	PDIP-6	1 Channel	NPN Phototransistor
Transistor Output Optocouplers PTR 100%, 3.5KV 4N35 LITEON 1: $0.64 12,573In Stock 13,195Expected 23/11/2026	Mfr. Part No. 4N35 Mouser Part No 859-4N35	LITEON	Transistor Output Optocouplers PTR 100%, 3.5KV Learn More about LITEON general purpose phototransistor photocouplers	Datasheet	12,573In Stock 13,195Expected 23/11/2026	$0.64 $0.353 $0.276 $0.192 View $0.176 $0.164 $0.153 $0.144 $0.131	Min.: 1 Mult.: 1	6 V	10 us	100 mA	Through Hole	PDIP-6	1 Channel	NPN Phototransistor
Transistor Output Optocouplers PTR 100%, 3.5KV 4N35M LITEON 1: $0.49 6,217In Stock	Mfr. Part No. 4N35M Mouser Part No 859-4N35M	LITEON	Transistor Output Optocouplers PTR 100%, 3.5KV Learn More about LITEON general purpose phototransistor photocouplers	Datasheet	6,217In Stock	$0.49 $0.254 $0.23 $0.195 View $0.169 $0.161 $0.138 $0.129	Min.: 1 Mult.: 1	6 V	10 us	100 mA	Through Hole	PDIP-6	1 Channel	NPN Phototransistor
Transistor Output Optocouplers PTR 100%, 3.5KV 4N35S LITEON 1: $0.66 9,082In 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	9,082In Stock	$0.66 $0.24 $0.186 $0.179 View $0.174 $0.168 $0.163 $0.15	Min.: 1 Mult.: 1	6 V	10 us	100 mA	SMD/SMT	PDIP-6 Gull Wing	1 Channel	NPN Phototransistor