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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4N25-X000


Transistor Output Optocouplers Phototransistor Out Single CTR >20%
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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.

Vishay 1530
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AUD 0.3108
Multiples of: 1

CNY17-3S


Optocoupler; SMD; Channels:1; Out: transistor; Uinsul:5kV; Uce:70V
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Lite-On 1526
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AUD 0.2038
Multiples of: 1

H11D1


Transistor Output Optocouplers Optocoulter PTR 6 Pin 300V 5KV
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Lite-On 1523
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AUD 0.4258
Multiples of: 1

IL4218


Triac & SCR Output Optocouplers Phototriac Output Very Low Input Curr
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Vishay 1523
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AUD 2.3806
Multiples of: 1

AT3023-CuH-DE


100mA 60mA 400V 1.23V Two-way thyristor DIP-6 Triac, SCR Output Optoisolators ROHS
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AOTE 1522
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AUD 0.1538
Multiples of: 5

SFH618A-5


Transistor Output Optocouplers Phototransistor Out Single CTR 250-500%
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Vishay 1516
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AUD 0.495
Multiples of: 1563

ISP817XSM


Optocoupler; SMD; Channels:1; Out: transistor; Uinsul:5.3kV
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Isocom 1514
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AUD 0.4889
Multiples of: 1

CNY66


Transistor Output Optocouplers Phototransistor Out
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Vishay 1512
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AUD 2.4134
Multiples of: 1

PS2806-4-A


Transistor Output Optocouplers Optocoupler 16-pin SSOP
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Renesas 1510
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AUD 6.1698
Multiples of: 1

CPC1303GRTR


IXYS Integrated Circuits Transistor Output Optocouplers Dual Optocoupler High-Voltage
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IXYS 1507
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AUD 1.0819
Multiples of: 1

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