Transistor Output Optocouplers – Mouser South Africa

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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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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (USD) Filter the results in the table by unit price based on your quantity.	Qty.	Mounting Style	Package/Case	Number of Channels	Isolation Voltage	Output Type	Current Transfer Ratio - Min	Current Transfer Ratio - Max	If - Forward Current	Vf - Forward Voltage	Maximum Collector Emitter Voltage	Maximum Collector Current	Maximum Collector Emitter Saturation Voltage	Rise Time	Fall Time	Vr - Reverse Voltage	Pd - Power Dissipation	Minimum Operating Temperature	Maximum Operating Temperature	Packaging
Transistor Output Optocouplers P/C LTV-356T BIN B (2.0) STD. TYPE LTV-356T-B LITEON 1: $0.49 80,653In Stock	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	80,653In Stock	Cut Tape $0.49 $0.335 $0.24 $0.197 Reel $0.163 View $0.183 $0.154 $0.14 $0.136 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT		1 Channel	3750 Vrms	NPN Phototransistor	130 %	260 %	50 mA	1.4 V	80 V	50 mA	200 mV	4 us	3 us	6 V	170 mW	- 55 C	+ 110 C	Reel, Cut Tape, MouseReel
Transistor Output Optocouplers Optocoupler Phototrans LTV-357T LITEON 1: $0.43 25,813In Stock 21,000Expected 2026/12/01	Mfr. Part No. LTV-357T Mouser Part No 859-LTV-357T	LITEON	Transistor Output Optocouplers Optocoupler Phototrans Learn More about LITEON general purpose phototransistor photocouplers	Datasheet	25,813In Stock 21,000Expected 2026/12/01	Cut Tape $0.43 $0.293 $0.209 $0.171 Reel $0.141 View $0.158 $0.133 $0.121 $0.117 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	SMD-4	1 Channel	3750 Vrms	NPN Phototransistor	50 %	600 %	50 mA	1.4 V	35 V	50 mA	200 mV	18 us	18 us	6 V	170 mW	- 55 C	+ 110 C	Reel, Cut Tape, MouseReel
Transistor Output Optocouplers P/C LTV-357T BIN B (2.0) STD. TYPE LTV-357T-B LITEON 1: $0.461 14,722In Stock	Mfr. Part No. LTV-357T-B Mouser Part No 859-LTV-357T-B	LITEON	Transistor Output Optocouplers P/C LTV-357T BIN B (2.0) STD. TYPE Learn More about LITEON general purpose phototransistor photocouplers	Datasheet	14,722In Stock	Cut Tape $0.461 $0.316 $0.226 $0.185 Reel $0.154 View $0.172 $0.15 $0.127 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT		1 Channel	3750 Vrms	NPN Phototransistor	130 %	260 %	50 mA	1.4 V	35 V	50 mA	200 mV	18 us	18 us	6 V	170 mW	- 55 C	+ 110 C	Reel, Cut Tape, MouseReel
Transistor Output Optocouplers Optocoupler Phototrans LTV-358T LITEON 1: $0.561 15,168In Stock	Mfr. Part No. LTV-358T Mouser Part No 859-LTV-358T	LITEON	Transistor Output Optocouplers Optocoupler Phototrans Learn More about LITEON general purpose phototransistor photocouplers	Datasheet	15,168In Stock	Cut Tape $0.561 $0.39 $0.281 $0.233 Reel $0.194 View $0.215 $0.193 $0.18 $0.159 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	SMD-4	1 Channel	3750 Vrms	NPN Phototransistor	80 %	160 %	50 mA	1.4 V	120 V	50 mA	200 mV	18 us	18 us	6 V	170 mW	- 55 C	+ 100 C	Reel, Cut Tape, MouseReel
Transistor Output Optocouplers Optocoupler LTV-814HS-TA1 LITEON 1: $0.58 11,960In Stock 10,000Expected 2026/10/26	Mfr. Part No. LTV-814HS-TA1 Mouser Part No 859-LTV-814HS-TA1	LITEON	Transistor Output Optocouplers Optocoupler Learn More about LITEON general purpose phototransistor photocouplers	Datasheet	11,960In Stock 10,000Expected 2026/10/26	Cut Tape $0.58 $0.401 $0.29 $0.24 Reel $0.222 View $0.201 $0.188 $0.183 $0.177 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	SMD/SMT	PDIP-4 Gull Wing	1 Channel	5000 Vrms	Phototransistor	20 %	80 %	150 mA	1.7 V	35 V	80 mA	200 mV	18 us	18 us		320 mW	- 30 C	+ 100 C	Reel, Cut Tape, MouseReel
Transistor Output Optocouplers Optocoupler LTV-816S-TA1 LITEON 1: $0.40 50,965In Stock 45,000Expected 2026/11/26	Mfr. Part No. LTV-816S-TA1 Mouser Part No 859-LTV-816S-TA1	LITEON	Transistor Output Optocouplers Optocoupler Learn More about LITEON general purpose phototransistor photocouplers	Datasheet	50,965In Stock 45,000Expected 2026/11/26	Cut Tape $0.40 $0.274 $0.195 $0.159 Reel $0.147 View $0.131 $0.122 $0.117 $0.116 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	SMD/SMT	PDIP-4 Gull Wing	1 Channel	5000 Vrms	NPN Phototransistor	50 %	600 %	50 mA	1.4 V	80 V	50 mA	200 mV	18 us	18 us	6 V	200 mW	- 55 C	+ 110 C	Reel, Cut Tape, MouseReel
Transistor Output Optocouplers P/C LTV-816S-TA1-A TAPING TYPE II LTV-816S-TA1-A LITEON 1: $0.40 49,846In Stock	Mfr. Part No. LTV-816S-TA1-A Mouser Part No 859-LTV-816S-TA1-A	LITEON	Transistor Output Optocouplers P/C LTV-816S-TA1-A TAPING TYPE II Learn More about LITEON general purpose phototransistor photocouplers	Datasheet	49,846In Stock	Cut Tape $0.40 $0.276 $0.197 $0.16 Reel $0.147 View $0.133 $0.123 $0.119 $0.115	Min.: 1 Mult.: 1 : 1,000	SMD/SMT		1 Channel	5000 Vrms	NPN Phototransistor	80 %	160 %	50 mA	1.4 V	80 V	50 mA	200 mV	18 us	18 us	6 V	200 mW	- 55 C	+ 110 C	Reel, Cut Tape
Transistor Output Optocouplers Optocoupler LTV-817S-TA1 LITEON 1: $0.40 28,292In Stock 55,000Expected 2026/10/26	Mfr. Part No. LTV-817S-TA1 Mouser Part No 859-LTV-817S-TA1	LITEON	Transistor Output Optocouplers Optocoupler Learn More about LITEON general purpose phototransistor photocouplers	Datasheet	28,292In Stock 55,000Expected 2026/10/26	Cut Tape $0.40 $0.272 $0.194 $0.158 Reel $0.14 View $0.128 $0.117 $0.115 $0.11 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	SMD/SMT	PDIP-4 Gull Wing	1 Channel	5000 Vrms	NPN Phototransistor	50 %	600 %	50 mA	1.4 V	35 V	50 mA	200 mV	18 us	18 us	6 V	200 mW	- 55 C	+ 110 C	Reel, Cut Tape, MouseReel
Transistor Output Optocouplers Optocoupler 50% 5kv 4Pin SMT LTV-817S-TA1-D LITEON 1: $0.40 67,083In Stock 48,000Expected 2026/10/14	Mfr. Part No. LTV-817S-TA1-D Mouser Part No 859-LTV-817S-TA1-D	LITEON	Transistor Output Optocouplers Optocoupler 50% 5kv 4Pin SMT Learn More about LITEON general purpose phototransistor photocouplers	Datasheet	67,083In Stock 48,000Expected 2026/10/14	Cut Tape $0.40 $0.276 $0.197 $0.16 Reel $0.143 View $0.131 $0.123 $0.117 $0.112 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	SMD/SMT	PDIP-4 Gull Wing	1 Channel	5000 Vrms	NPN Phototransistor	300 %	600 %	50 mA	1.4 V	35 V	50 mA	200 mV	18 us	18 us	6 V	200 mW	- 55 C	+ 110 C	Reel, Cut Tape, MouseReel
Transistor Output Optocouplers P/C LTV354TA-V-36 STD.TYPE LTV354TA-V-36 LITEON 1: $0.37 36,677In Stock	Mfr. Part No. LTV354TA-V-36 Mouser Part No 859-LTV354TA-V-36	LITEON	Transistor Output Optocouplers P/C LTV354TA-V-36 STD.TYPE Learn More about LITEON general purpose phototransistor photocouplers	Datasheet	36,677In Stock	Cut Tape $0.37 $0.255 $0.181 $0.147 Reel $0.121 View $0.136 $0.114 $0.105 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT		1 Channel	3750 Vrms	NPN Phototransistor	50 %	150 %	50 mA	1.4 V	35 V	50 mA	200 mV	18 us	18 us		170 mW	- 55 C	+ 100 C	Reel, Cut Tape, MouseReel
Transistor Output Optocouplers P/C LTV-214 STD. TYPE LTV-214-AK-G LITEON 1: $0.43 10,347In Stock 9,000Expected 2026/10/26	Mfr. Part No. LTV-214-AK-G Mouser Part No 859-LTV-214-AK-G	LITEON	Transistor Output Optocouplers P/C LTV-214 STD. TYPE Learn More about LITEON general purpose phototransistor photocouplers	Datasheet	10,347In Stock 9,000Expected 2026/10/26	Cut Tape $0.43 $0.292 $0.208 $0.17 Reel $0.141 View $0.158 $0.133 $0.121 $0.115	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	SMD-4	1 Channel	3750 Vrms	NPN Phototransistor	20 %	400 %	50 mA	1.2 V	80 V	50 mA	400 mV	3 us	4 us		200 mW	- 55 C	+ 110 C	Reel, Cut Tape
Transistor Output Optocouplers PTR 20%, 2.5KV 4N25 LITEON 1: $0.52 13,176In Stock	Mfr. Part No. 4N25 Mouser Part No 859-4N25	LITEON	Transistor Output Optocouplers PTR 20%, 2.5KV Learn More about LITEON general purpose phototransistor photocouplers	Datasheet	13,176In Stock	$0.52 $0.416 $0.277 $0.211 $0.131	Min.: 1 Mult.: 1	Through Hole	PDIP-6	1 Channel	2500 Vrms	NPN Phototransistor	20 %		80 mA	1.5 V	30 V	100 mA	500 mV	3 us	3 us	6 V	250 mW	- 55 C	+ 100 C	Tube
Transistor Output Optocouplers PTR 20%, 2.5KV 4N25S-TA1 LITEON 1: $0.48 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 $0.48 $0.333 $0.238 $0.197 Reel $0.181 View $0.167 $0.165 $0.16 $0.143 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	SMD/SMT	PDIP-6 Gull Wing	1 Channel	2500 Vrms	NPN Phototransistor	20 %		80 mA	1.5 V	30 V	100 mA	500 mV	3 us	3 us	6 V	250 mW	- 55 C	+ 100 C	Reel, Cut Tape, MouseReel
Transistor Output Optocouplers HCEV, 40%, 5KV CNY17-1S-TA1 LITEON 1: $0.63 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 $0.63 $0.426 $0.302 $0.258 Reel $0.217 View $0.214 $0.199 $0.185 $0.167 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	SMD/SMT	PDIP-6 Gull Wing	1 Channel	5000 Vrms	NPN Phototransistor	40 %	80 %	60 mA	1.65 V	70 V	100 mA	300 mV	2 us	11 us	6 V	250 mW	- 55 C	+ 110 C	Reel, Cut Tape, MouseReel
Transistor Output Optocouplers Optocoupler PTR 40%, 5KV, 6PIN CNY17-2S LITEON 1: $0.54 11,214In 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	11,214In Stock	$0.54 $0.283 $0.256 $0.217 View $0.19 $0.174 $0.165 $0.144	Min.: 1 Mult.: 1	SMD/SMT		1 Channel	5000 Vrms	NPN Phototransistor	63 %	125 %	60 mA	1.65 V	70 V	100 mA	400 mV	3 us	14 us	6 V	250 mW	- 55 C	+ 110 C	Tube
Transistor Output Optocouplers 20% 3.75KV 4 Pin AC Optocoupler LTV-214 LITEON 1: $0.761 6,429In Stock	Mfr. Part No. LTV-214 Mouser Part No 859-LTV-214	LITEON	Transistor Output Optocouplers 20% 3.75KV 4 Pin AC Optocoupler Learn More about LITEON general purpose phototransistor photocouplers	Datasheet	6,429In Stock	Cut Tape $0.761 $0.528 $0.385 $0.321 Reel $0.27 View $0.30 $0.257 $0.24 $0.226 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	SSOP-4	1 Channel	3750 Vrms	NPN Phototransistor	20 %	400 %	50 mA	1.4 V	80 V	50 mA	400 mV	2 us	3 us	6 V	200 mW	- 55 C	+ 110 C	Reel, Cut Tape, MouseReel
Transistor Output Optocouplers Optocoupler AC input LTV-814 LITEON 1: $0.511 10,471In Stock 31,300On 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	10,471In Stock 31,300On Order On Order Ship Dates Mfr. No: LTV-814 Stock: 10,471 Can Dispatch Immediately On Order: 6,000 Expected 2026/10/07 25,300 Expected 2026/11/26 Factory Lead Time: 14 Weeks	$0.511 $0.349 $0.25 $0.205 View $0.178 $0.164 $0.142	Min.: 1 Mult.: 1	Through Hole	PDIP-4	1 Channel	5000 Vrms	NPN Phototransistor	20 %	300 %	50 mA	1.4 V	35 V	50 mA	200 mV	18 us	18 us		200 mW	- 30 C	+ 100 C	Tube
Transistor Output Optocouplers Optocoupler Phototrans LTV-816S LITEON 1: $0.62 34,008In Stock 52,300On Order	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	34,008In Stock 52,300On Order On Order Ship Dates Mfr. No: LTV-816S Stock: 34,008 Can Dispatch Immediately On Order: 25,500 Expected 2026/10/07 26,800 Expected 2026/10/21 Factory Lead Time: 14 Weeks	$0.62 $0.404 $0.188 $0.166 View $0.156 $0.151 $0.149 $0.144 $0.143	Min.: 1 Mult.: 1	SMD/SMT	PDIP-4 Gull Wing	1 Channel	5000 Vrms	NPN Phototransistor	50 %	600 %	50 mA	1.4 V	80 V	50 mA	200 mV	18 us	18 us	6 V	200 mW	- 55 C	+ 110 C	Tube
Transistor Output Optocouplers Optocoupler Phototrans LTV-817 LITEON 1: $0.39 26,043In Stock	Mfr. Part No. LTV-817 Mouser Part No 859-LTV-817	LITEON	Transistor Output Optocouplers Optocoupler Phototrans Learn More about LITEON general purpose phototransistor photocouplers	Datasheet	26,043In Stock	$0.39 $0.264 $0.187 $0.144 View $0.13 $0.126 $0.117 $0.114 $0.104	Min.: 1 Mult.: 1	SMD/SMT	PDIP-4	1 Channel	5000 Vrms	NPN Phototransistor	50 %	600 %	50 mA	1.4 V	35 V	50 mA	200 mV	18 us	18 us	6 V	200 mW	- 55 C	+ 110 C	Tube
Transistor Output Optocouplers Optocoupler 50% 5kv 4Pin SMT LTV-817D LITEON 1: $0.57 14,272In Stock 15,400Expected 2026/12/03	Mfr. Part No. LTV-817D Mouser Part No 859-LTV-817D	LITEON	Transistor Output Optocouplers Optocoupler 50% 5kv 4Pin SMT Learn More about LITEON general purpose phototransistor photocouplers	Datasheet	14,272In Stock 15,400Expected 2026/12/03	$0.57 $0.376 $0.25 $0.173 View $0.159 $0.147 $0.138 $0.13 $0.11	Min.: 1 Mult.: 1	Through Hole	PDIP-4	1 Channel	5000 Vrms	NPN Phototransistor	300 %	600 %	20 mA	1.4 V	35 V	50 mA	200 mV	18 us	18 us	6 V	200 mW	- 30 C	+ 100 C	Tube
Transistor Output Optocouplers Optocoupler Phototrans LTV-817S LITEON 1: $0.49 34,365In Stock 39,000Expected 2026/12/21	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	34,365In Stock 39,000Expected 2026/12/21	$0.49 $0.335 $0.173 $0.157 View $0.151 $0.147 $0.142 $0.134 $0.122	Min.: 1 Mult.: 1	SMD/SMT	PDIP-4 Gull Wing	1 Channel	5000 Vrms	NPN Phototransistor	50 %	600 %	50 mA	1.4 V	35 V	50 mA	200 mV	18 us	18 us	6 V	200 mW	- 55 C	+ 110 C	Tube
Transistor Output Optocouplers Optocoupler 50% 5kv 4Pin SMT LTV-817S-D LITEON 1: $0.44 28,313In 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	28,313In Stock	$0.44 $0.299 $0.213 $0.169 View $0.15 $0.147 $0.138 $0.127	Min.: 1 Mult.: 1	SMD/SMT	PDIP-4 Gull Wing	1 Channel	5000 Vrms	NPN Phototransistor	300 %	600 %	50 mA	1.4 V	35 V	50 mA	200 mV	18 us	18 us	6 V	200 mW	- 55 C	+ 110 C	Tube
Transistor Output Optocouplers Optocoupler LTV-817S-TA LITEON 1: $0.44 43,454In Stock 14,500Expected 2026/10/12	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	43,454In Stock 14,500Expected 2026/10/12	Cut Tape $0.44 $0.299 $0.213 $0.187 Reel $0.166 View $0.154 $0.144 $0.14 $0.136 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	SMD/SMT	PDIP-4 Gull Wing	1 Channel	5000 Vrms	NPN Phototransistor	50 %	600 %	50 mA	1.4 V	35 V	50 mA	200 mV	18 us	18 us	6 V	200 mW	- 55 C	+ 110 C	Reel, Cut Tape, MouseReel
Transistor Output Optocouplers Optocoupler AC in 2-CHNL LTV-824 LITEON 1: $1.11 7,642In 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	7,642In Stock	$1.11 $0.741 $0.556 $0.455 View $0.426 $0.405 $0.385 $0.357 $0.335	Min.: 1 Mult.: 1	Through Hole	PDIP-8	2 Channel	5000 Vrms	NPN Phototransistor	20 %	300 %	50 mA	1.4 V	35 V	50 mA	200 mV	18 us	18 us		200 mW	- 30 C	+ 100 C	Tube
Transistor Output Optocouplers Optocoupler LTV-826S-TA1 LITEON 1: $0.64 14,545In Stock 3,000Expected 2026/10/06	Mfr. Part No. LTV-826S-TA1 Mouser Part No 859-LTV-826S-TA1	LITEON	Transistor Output Optocouplers Optocoupler Learn More about LITEON general purpose phototransistor photocouplers	Datasheet	14,545In Stock 3,000Expected 2026/10/06	Cut Tape $0.64 $0.445 $0.322 $0.267 Reel $0.248 View $0.226 $0.213 $0.19 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	SMD/SMT	PDIP-8 Gull Wing	2 Channel	5000 Vrms	NPN Phototransistor	50 %	600 %	50 mA	1.4 V	80 V	50 mA	200 mV	18 us	18 us	6 V	200 mW	- 30 C	+ 100 C	Reel, Cut Tape, MouseReel