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.

Types of Optocouplers/Photocouplers

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Results: 231
Select Image Part # Mfr. Description Datasheet Availability Pricing (SGD) Filter the results in the table by unit price based on your quantity. Qty. RoHS Vr - Reverse Voltage Rise Time Maximum Collector Current Mounting Style Package/Case Number of Channels Output Type
LITEON Transistor Output Optocouplers SO8 100-200% 3.75KV 2CH Optocoupler 10,374In Stock
Cut Tape
$1.62
$1.14
$0.845
$0.715
Reel
$0.635
Min.: 1
Mult.: 1
: 2,000
6 V 3 us SMD/SMT SOP-8 2 Channel Phototransistor
LITEON Transistor Output Optocouplers P/C LTV354TA-V-36 STD.TYPE 36,677In Stock
Cut Tape
$0.503
$0.347
$0.246
$0.20
Reel
$0.146
Min.: 1
Mult.: 1
: 3,000
18 us 50 mA SMD/SMT 1 Channel NPN Phototransistor
LITEON Transistor Output Optocouplers Optocoupler 50% 5kv 4Pin SMT 23,826In Stock
$0.598
$0.407
$0.29
$0.23
Min.: 1
Mult.: 1
6 V 18 us 50 mA SMD/SMT PDIP-4 Gull Wing 1 Channel NPN Phototransistor
LITEON Transistor Output Optocouplers P/C LTV-357T BIN A (2.0) STD. TYPE 8,989In Stock
Cut Tape
$0.694
$0.473
$0.339
$0.262
Reel
$0.19
Min.: 1
Mult.: 1
: 3,000
6 V 18 us 50 mA SMD/SMT 1 Channel NPN Phototransistor
LITEON Transistor Output Optocouplers HCEV, 160%, 5KV 4,906In Stock
Cut Tape
$0.911
$0.60
$0.401
$0.287
Reel
$0.242
Min.: 1
Mult.: 1
: 1,000
6 V 10 us 150 mA SMD/SMT PDIP-6 Gull Wing 1 Channel NPN Phototransistor
LITEON Transistor Output Optocouplers P/C LTV817B-V STD. TYPE VDE 3,547In Stock
Cut Tape
$0.653
$0.43
$0.287
$0.205
Reel
$0.174
Min.: 1
Mult.: 1
: 1,000
6 V 18 us 30 mA SMD/SMT SMD-4 1 Channel Phototransistor
LITEON Transistor Output Optocouplers OPTOCOUPLER, AC, 600%, 5KV, 4 PIN, HALOGEN-FREE, T/R 5,577In Stock
Cut Tape
$0.993
$0.651
$0.435
$0.302
Reel
$0.256
Min.: 1
Mult.: 1
: 3,000
4 V 18 us 50 mA SMD/SMT SSOP-4 1 Channel Phototransistor
LITEON Transistor Output Optocouplers HCEV, 63%, 5KV 7,720In Stock
$0.626
$0.326
$0.276
$0.219
Min.: 1
Mult.: 1
6 V 10 us 150 mA Through Hole PDIP-6 1 Channel NPN Phototransistor
LITEON Transistor Output Optocouplers Optocoupler AC input 6,191In Stock
$1.05
$0.725
$0.525
$0.43
Min.: 1
Mult.: 1
18 us 50 mA Through Hole PDIP-6 1 Channel NPN Phototransistor
LITEON Transistor Output Optocouplers HCEV, 63%, 5KV 85In Stock
Cut Tape
$0.816
$0.549
$0.39
$0.329
Reel
$0.279
Min.: 1
Mult.: 1
: 1,000
6 V 10 us 150 mA SMD/SMT PDIP-6 Gull Wing 1 Channel NPN Phototransistor
LITEON Transistor Output Optocouplers Optocoupler 784In Stock
6,000Expected 16/11/2026
Cut Tape
$0.816
$0.549
$0.39
$0.329
Reel
$0.279
Min.: 1
Mult.: 1
: 1,000
6 V 7 us 50 mA SMD/SMT PDIP-6 Gull Wing 1 Channel NPN Phototransistor
LITEON Transistor Output Optocouplers Optocoupler 5,055In Stock
$0.966
$0.628
$0.419
$0.29
Min.: 1
Mult.: 1
6 V 7 us 50 mA Through Hole 1 Channel NPN Phototransistor
LITEON Transistor Output Optocouplers Optocoupler Phototrans 3,054In Stock
$0.898
$0.589
$0.393
$0.271
Min.: 1
Mult.: 1
6 V 7 us 50 mA SMD/SMT PDIP-6 Gull Wing 1 Channel NPN Phototransistor
LITEON Transistor Output Optocouplers PTR 20%, 2.5KV 3,890In Stock
Cut Tape
$0.966
$0.628
$0.42
$0.299
Reel
$0.253
Min.: 1
Mult.: 1
: 1,000
6 V 3 us 100 mA SMD/SMT PDIP-6 Gull Wing 1 Channel NPN Phototransistor
LITEON Transistor Output Optocouplers Optocoupler Phototrans 59In Stock
$0.898
$0.589
$0.393
$0.271
Min.: 1
Mult.: 1
6 V 7 us 50 mA Through Hole PDIP-6 1 Channel NPN Phototransistor
LITEON Transistor Output Optocouplers Optocoupler Phototrans 114,836In Stock
Cut Tape
$0.734
$0.50
$0.36
$0.296
Reel
$0.246
Min.: 1
Mult.: 1
: 3,000
18 us 50 mA SMD/SMT SMD-4 1 Channel NPN Phototransistor
LITEON Transistor Output Optocouplers PTR 50% 5KV 16 PIN 4CH Optocoupler 39,608In Stock
24,000Expected 16/11/2026
Cut Tape
$1.85
$1.30
$0.975
$0.828
Reel
$0.725
Min.: 1
Mult.: 1
: 2,000
6 V 18 us 50 mA SMD/SMT SOP-16 4 Channel NPN Phototransistor
LITEON Transistor Output Optocouplers Optocoupler AC in 4-CHNL 37,538In Stock
56,950Expected 26/11/2026
$2.46
$1.73
$1.31
$1.12
Min.: 1
Mult.: 1
18 us 50 mA SMD/SMT SMD-DIP-16 4 Channel NPN Phototransistor
LITEON Transistor Output Optocouplers Optocplr Phototrans 4-Channel 65,330In Stock
97,150On Order
$1.85
$1.23
$0.972
$0.811
Min.: 1
Mult.: 1
6 V 18 us 50 mA SMD/SMT PDIP-16 Gull Wing 4 Channel NPN Phototransistor
LITEON Transistor Output Optocouplers Optocplr Phototrans 4-CHNL 51,688In Stock
$2.05
$1.39
$1.05
$0.877
Min.: 1
Mult.: 1
6 V 18 us 50 mA Through Hole PDIP-16 4 Channel NPN Phototransistor
LITEON Transistor Output Optocouplers Optocoupler, AC 600%, 5KV, 4 PIN 125,685In Stock
Cut Tape
$0.68
$0.465
$0.335
$0.275
Reel
$0.228
Min.: 1
Mult.: 1
: 3,000
6 V 18 us 50 mA SMD/SMT SSOP-4 1 Channel NPN Phototransistor
LITEON Transistor Output Optocouplers P/C LTV-356T-TP1-B (2.0) STD. TYPE 7,831In Stock
Cut Tape
$0.394
$0.265
$0.186
$0.151
Reel
$0.141
Min.: 1
Mult.: 1
: 3,000
6 V 4 us 50 mA SMD/SMT SMD-4 1 Channel NPN Phototransistor
LITEON Transistor Output Optocouplers SO8 100% 3.75KV 2CH Optocoupler 4,639In Stock
Cut Tape
$1.62
$1.14
$0.845
$0.715
Reel
$0.607
Min.: 1
Mult.: 1
: 2,000
6 V 3 us SMD/SMT SOP-8 2 Channel NPN Phototransistor
LITEON Transistor Output Optocouplers P/C LTV-354T-A STD. TYPE 19,518In Stock
Cut Tape
$0.789
$0.541
$0.39
$0.322
Reel
$0.269
Min.: 1
Mult.: 1
: 3,000
18 us 50 mA SMD/SMT 1 Channel NPN Phototransistor
LITEON Transistor Output Optocouplers Optocoupler Phototrans 93,239In Stock
69,000Expected 30/11/2026
Cut Tape
$0.585
$0.398
$0.284
$0.233
Reel
$0.192
Min.: 1
Mult.: 1
: 3,000
6 V 4 us 50 mA SMD/SMT SMD-4 1 Channel NPN Phototransistor