Optocouplers / Photocouplers

Optocouplers are a type of isolator that use a low-power optical signal to transmit one signal from one circuit to another independent circuit. Optocouplers are comprised of an infrared LED light source and an integrated photo detector which usually consists of a photodiode and detector circuit. This optical link or coupling provides electrical isolation between the two circuits which makes the trouble shooting and reliability of circuits more straightforward. These devices are often used to provide electrical isolation between digital signals on the same board, but they are also commonly used in medical and industrial instruments, motor control systems, and signal conditioning circuits. Optocouplers have very high input-to-output isolation voltage and low capacitance, which makes them suitable for signal transmission in high speed applications. Additionally, they manage the call back current of the circuit they are connecting, allowing them to protect against overloads.
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VOS628A-3T


Transistor Output Optocouplers Phototransistor Out CTR 100-200% IF=1MA
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Vishay 28750
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AUD 0.3924
Multiples of: 1

PS2502-1-A


Transistor Output Optocouplers Optocoupler 4-pin DIP
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Renesas 28617
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AUD 0.6248
Multiples of: 1

SFH6156-3T0


Transistor Output Optocouplers H. Relblty 5300 Vrms 100-200% CTR
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Vishay 28498
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AUD 0.4865
Multiples of: 1

TLP2761(TP,E(T


SOP-6 Logic Output Optoisolators ROHS
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Toshiba 27645
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AUD 0.7969
Multiples of: 1

PC817C-S


SOP-4-2.54mm Optocouplers - Phototransistor Output ROHS
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Youtai 27480
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AUD 0.0366
Multiples of: 10

Hot MOCD217M


Optocoupler; SMD; Channels:2; Out: transistor; 2.5kV; SO8
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ON Semiconductor 27418
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AUD 0.3772
Multiples of: 3000

TLP290-4(GB-TP,E(T


Optocouplers SO-16 RoHS
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Toshiba 26914
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AUD 0.5257
Multiples of: 1

LTV-217-A-G


Transistor Output Optocouplers OPTOCOUPLER, AC, 600%, 5KV, 4 PIN, HALOGEN-FREE, T/R
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Lite-On 26859
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AUD 0.0887
Multiples of: 5

MOC3023SM


Optotriac; 5kV; Uout:400V; without zero voltage crossing driver
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ON Semiconductor 26704
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AUD 0.3496
Multiples of: 1000

PC817B


5kV 50mA 200mV@1mA,20mA 1 6V 1.2V DC DIP-4 Transistor, Photovoltaic Output Optoisolators ROHS
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AOTE 25860
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AUD 0.029
Multiples of: 20

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