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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EL817MB-F


Optocoupler DC-IN 1-CH Transistor DC-OUT 4-Pin PDIP Tube
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Everlight 19797
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AUD 0.0494
Multiples of: 10

PS2505L-1-A


Transistor Output Optocouplers Hi-Iso AC Input 1-Ch
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CEL 19723
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AUD 0.529
Multiples of: 1

PS2802-4-F3-A


Transistor Output Optocouplers Hi-Iso Darling 4-Ch
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CEL 19638
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AUD 2.4968
Multiples of: 1

PS2815-1-F3-A


CEL Transistor Output Optocouplers Hi CTR AC Input 1-Ch
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CEL 19474
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AUD 0.7543
Multiples of: 1

PC817X3NSZWC


DIP-4 Transistor, Photovoltaic Output Optoisolators ROHS
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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.

Sharp 19400
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AUD 0.0713
Multiples of: 10

EL851S1(TA)


Transistor Output Optocouplers Photo Transistor SMD
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Everlight 19385
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AUD 0.322
Multiples of: 5

EL814S1(TA)-V


Transistor Output Optocouplers Optocoupler Transistor AC Input
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Everlight 19327
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AUD 0.1633
Multiples of: 5

ITR2006ST30A/TR


SMD Optocouplers - Phototransistor Output ROHS
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Everlight 19327
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AUD 0.255
Multiples of: 5

PC817A


5kV 50mA 200mV@1mA,20mA 1 6V 1.2V DC DIP-4 Transistor, Photovoltaic Output Optoisolators ROHS
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AOTE 19322
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AUD 0.0343
Multiples of: 20

Hot MOCD217M


Optocoupler; SMD; Channels:2; Out: transistor; 2.5kV; SO8
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ON Semiconductor 5732
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AUD 0.4079
Multiples of: 1

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