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 5000VRMS. 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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Description Datasheet Availability Pricing (SGD) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model 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
LITEON Transistor Output Optocouplers P/C LTV-356T BIN B (2.0) STD. TYPE
Datasheet
1,498In Stock
49,560Expected 19/3/2026
MouseReel Available
Min.: 1
Mult.: 1
Reel: 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
LITEON Transistor Output Optocouplers P/C LTV-356T BIN C (2.0) STD. TYPE
Datasheet
8,584In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

SMD/SMT 1 Channel 3750 Vrms NPN Phototransistor 200 % 400 % 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
LITEON Transistor Output Optocouplers P/C LTV-356T BIN D (2.0) STD. TYPE
Datasheet
7,551In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

SMD/SMT 1 Channel 3750 Vrms NPN Phototransistor 50 % 600 % 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
LITEON Transistor Output Optocouplers P/C LTV-357T BIN A (2.0) STD. TYPE
Datasheet
6,050In Stock
Min.: 1
Mult.: 1
Reel: 3,000

SMD/SMT 1 Channel 3750 Vrms NPN Phototransistor 80 % 160 % 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
LITEON Transistor Output Optocouplers P/C LTV-357T BIN B (2.0) STD. TYPE
Datasheet
5,936In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 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
LITEON Transistor Output Optocouplers P/C LTV-357T BIN C (2.0) STD. TYPE
Datasheet
6,136In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

SMD/SMT 1 Channel 3750 Vrms NPN Phototransistor 200 % 400 % 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
LITEON Transistor Output Optocouplers P/C LTV-357T BIN D (2.0) STD. TYPE
Datasheet
3,403In Stock
6,000Expected 23/3/2026
Min.: 1
Mult.: 1
Reel: 3,000

SMD/SMT 1 Channel 3750 Vrms NPN Phototransistor 300 % 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
LITEON Transistor Output Optocouplers Optocoupler AC input
Datasheet
4,470In Stock
10,000Expected 20/4/2026
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
LITEON Transistor Output Optocouplers P/C LTV-814 BIN A STD.TYPE
Datasheet
1,266In Stock
Min.: 1
Mult.: 1

Through Hole 1 Channel 5000 Vrms NPN Phototransistor 50 % 50 mA 1.4 V 35 V 50 mA 200 mV 18 us 18 us 200 mW - 30 C + 100 C Tube
LITEON Transistor Output Optocouplers Optocoupler AC input
Datasheet
1,262In Stock
5,000Expected 11/2/2026
Min.: 1
Mult.: 1

Through Hole PDIP-4 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 Tube
LITEON Transistor Output Optocouplers Optocoupler AC input
Datasheet
2,921In Stock
Min.: 1
Mult.: 1

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 Tube
LITEON Transistor Output Optocouplers Optocoupler AC input
Datasheet
4,703In Stock
9,200Expected 19/2/2026
Min.: 1
Mult.: 1

SMD/SMT PDIP-4 Gull Wing 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 - 50 C + 100 C Tube
LITEON Transistor Output Optocouplers Optocoupler
Datasheet
41In Stock
34,000Expected 14/4/2026
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1,000

SMD/SMT PDIP-4 Gull Wing 1 Channel 5000 Vrms NPN Phototransistor 20 % 300 % 20 mA 1.4 V 35 V 50 mA 200 mV 18 us 18 us 200 mW - 30 C + 110 C Reel, Cut Tape, MouseReel
LITEON Transistor Output Optocouplers P/C LTV-814S-TA1 TAPPING TYPE II
Datasheet
3,290In Stock
10,000Expected 17/4/2026
Min.: 1
Mult.: 1

SMD/SMT 1 Channel 5000 Vrms NPN Phototransistor 20 % 300 % 20 mA 1.2 V 35 V 50 mA 200 mV 4 us 3 us 200 mW - 50 C + 110 C Reel
LITEON Transistor Output Optocouplers Optocoupler Phototrans
Datasheet
10,535In Stock
Min.: 1
Mult.: 1

Through Hole PDIP-4 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
LITEON Transistor Output Optocouplers Optocoupler
Datasheet
2,770In Stock
Min.: 1
Mult.: 1

Through Hole PDIP-4 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
LITEON Transistor Output Optocouplers P/C LTV-816S-B SMD TYPE
Datasheet
742In Stock
Min.: 1
Mult.: 1

SMD/SMT 1 Channel 5000 Vrms NPN Phototransistor 130 % 260 % 50 mA 1.4 V 80 V 50 mA 200 mV 18 us 18 us 6 V 200 mW - 55 C + 110 C Tube
LITEON Transistor Output Optocouplers Optocoupler
Datasheet
11,535In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 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
LITEON Transistor Output Optocouplers P/C LTV-816S-TA1-A TAPING TYPE II
Datasheet
10,922In Stock
Min.: 1
Mult.: 1
Reel: 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
LITEON Transistor Output Optocouplers P/C LTV-816S-TA1-B TAPPING TYPE II
Datasheet
5,000In Stock
Min.: 1
Mult.: 1
Reel: 1,000

SMD/SMT 1 Channel 5000 Vrms NPN Phototransistor 130 % 260 % 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
LITEON Transistor Output Optocouplers P/C LTV-816S-TA1-D TAPPING TYPE II
Datasheet
702In Stock
5,000Expected 19/3/2026
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1,000

SMD/SMT 1 Channel 5000 Vrms NPN Phototransistor 300 % 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
LITEON Transistor Output Optocouplers Optocoupler Phototrans
Datasheet
7,178In Stock
20,000Expected 16/4/2026
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
LITEON Transistor Output Optocouplers Optocoupler Phototrans
Datasheet
8,766In Stock
Min.: 1
Mult.: 1

Through Hole PDIP-4 1 Channel 5000 Vrms NPN Phototransistor 80 % 160 % 50 mA 1.4 V 35 V 50 mA 200 mV 18 us 18 us 6 V 200 mW - 55 C + 110 C Tube
LITEON Transistor Output Optocouplers Optocoupler 50% 5kv 4Pin SMT
Datasheet
8,806In Stock
500Expected 19/2/2026
Min.: 1
Mult.: 1

Through Hole PDIP-4 1 Channel 5000 Vrms NPN Phototransistor 130 % 260 % 50 mA 1.4 V 35 V 50 mA 200 mV 18 us 18 us 6 V 200 mW - 55 C + 110 C Tube
LITEON Transistor Output Optocouplers Optocoupler 50% 5kv 4Pin
Datasheet
2,454In Stock
Min.: 1
Mult.: 1

SMD/SMT PDIP-4 1 Channel 5000 Vrms NPN Phototransistor 200 % 400 % 50 mA 1.4 V 35 V 50 mA 200 mV 18 us 18 us 6 V 200 mW - 55 C + 110 C Tube