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 Optocoupler Phototrans
Datasheet
15,189In Stock
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
LITEON Transistor Output Optocouplers Optocoupler
Datasheet
42,560In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 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 Optocoupler
Datasheet
30,417In Stock
33,000Expected 28/9/2026
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
LITEON Transistor Output Optocouplers P/C LTV-816S-TA1-A TAPING TYPE II
Datasheet
29,860In Stock
25,000On Order
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
LITEON Transistor Output Optocouplers Optocoupler
Datasheet
54,061In Stock
5,000Expected 23/10/2026
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
LITEON Transistor Output Optocouplers Optocoupler
Datasheet
19,717In Stock
5,000Expected 23/10/2026
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 35 V 50 mA 200 mV 18 us 18 us 6 V 200 mW - 30 C + 100 C Reel, Cut Tape, MouseReel
LITEON Transistor Output Optocouplers P/C LTV354TA-V-36 STD.TYPE
Datasheet
36,687In Stock
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
LITEON Transistor Output Optocouplers P/C LTV-214 STD. TYPE
Datasheet
4,392In Stock
15,000On Order
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
LITEON Transistor Output Optocouplers PTR 20%, 2.5KV
Datasheet
15,699In Stock
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
LITEON Transistor Output Optocouplers PTR 20%, 2.5KV
Datasheet
12,176In Stock
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
LITEON Transistor Output Optocouplers PTR 100%, 3.5KV
Datasheet
17,081In Stock
Min.: 1
Mult.: 1

Through Hole PDIP-6 1 Channel 3550 Vrms NPN Phototransistor 100 % 60 mA 1.5 V 30 V 100 mA 300 mV 10 us 10 us 6 V 350 mW - 55 C + 100 C Tube
LITEON Transistor Output Optocouplers PTR 100%, 3.5KV
Datasheet
14,302In Stock
13,000Expected 2/11/2026
MouseReel Available
Min.: 1
Mult.: 1
: 1,000

SMD/SMT PDIP-6 Gull Wing 1 Channel 3550 Vrms NPN Phototransistor 100 % 60 mA 1.5 V 30 V 100 mA 300 mV 10 us 10 us 6 V 350 mW - 55 C + 100 C Reel, Cut Tape, MouseReel
LITEON Transistor Output Optocouplers HCEV, 100%, 5KV
Datasheet
9,316In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1,000

SMD/SMT PDIP-6 Gull Wing 1 Channel 5000 Vrms NPN Phototransistor 100 % 200 % 60 mA 1.65 V 70 V 100 mA 300 mV 3 us 14 us 6 V 250 mW - 55 C + 110 C Reel, Cut Tape, MouseReel
LITEON Transistor Output Optocouplers 20% 3.75KV 4 Pin AC Optocoupler
Datasheet
6,439In Stock
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
LITEON Transistor Output Optocouplers Optocoupler AC input
Datasheet
27,411In Stock
6,000Expected 6/11/2026
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 Optocoupler Phototrans
Datasheet
22,286In Stock
27,000Expected 26/10/2026
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
LITEON Transistor Output Optocouplers Optocoupler 50% 5kv 4Pin SMT
Datasheet
28,593In Stock
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
LITEON Transistor Output Optocouplers Optocoupler
Datasheet
24,207In Stock
47,000On Order
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
LITEON Transistor Output Optocouplers Optocoupler AC in 2-CHNL
Datasheet
8,296In Stock
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
LITEON Transistor Output Optocouplers Optocoupler AC in 4-CHNL
Datasheet
25,535In Stock
3,450On Order
Min.: 1
Mult.: 1

Through Hole PDIP-16 4 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 Optocoupler AC in 4-CHNL
Datasheet
10,532In Stock
39,100Expected 28/9/2026
Min.: 1
Mult.: 1

SMD/SMT SMD-DIP-16 4 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 Optocplr Phototrans 4-CHNL
Datasheet
28,298In Stock
30,350On Order
Min.: 1
Mult.: 1

Through Hole PDIP-16 4 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 - 30 C + 100 C Tube
LITEON Transistor Output Optocouplers Optocplr Phototrans 4-CHNL
Datasheet
16,905In Stock
Min.: 1
Mult.: 1

SMD/SMT SMD-16 4 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 - 30 C + 100 C Tube
LITEON Transistor Output Optocouplers Optocplr Phototrans 4-CHNL
Datasheet
12,697In Stock
Min.: 1
Mult.: 1

Through Hole PDIP-16 4 Channel 5000 Vrms Phototransistor 50 % 400 % 50 mA 1.4 V 35 V 50 mA 200 mV 4 us 3 us 6 V 170 mW - 25 C + 100 C Tube
LITEON Transistor Output Optocouplers Optocoupler, AC 600%, 5KV, 4 PIN
Datasheet
20,946In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

SMD/SMT SSOP-4 1 Channel 3750 Vrms NPN Phototransistor 50 % 600 % 50 mA 1.4 V 80 V 50 mA 400 mV 18 us 18 us 6 V 200 mW - 55 C + 110 C Reel, Cut Tape, MouseReel