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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HCPL-4503-000E


High Speed Optocouplers 1MBd 1Ch 16mA
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Broadcom 262
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AUD 1.3583
Multiples of: 1

ISP621-4XSM


Optocoupler; SMD; Channels:4; Out: transistor; Uinsul:5.3kV
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Isocom 259
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AUD 1.283
Multiples of: 1

EL3052(P5)


Everlight
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Everlight 257
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AUD 0.1477
Multiples of: 5

K3020PG


Triac & SCR Output Optocouplers Phototriac Output Non-Zero Crossing
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Vishay 257
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AUD 0.5288
Multiples of: 1

FOD3184SD


Logic Output Opto-couplers 3A Out, Hi-Speed Gate Drvr Optocouplr
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ON Semiconductor 257
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AUD 1.4827
Multiples of: 1

VOT8024AB-T1


Triac & SCR Output Optocouplers PhotoTRIAC 800V ZC SMD4 90 deg
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Vishay 255
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AUD 0.5204
Multiples of: 1

SFH628A-4


Transistor Output Optocouplers Phototransistor Out Single CTR 160-500%
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Vishay 255
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AUD 0.6567
Multiples of: 1

HCNW4506-000E


Logic Output Opto-couplers 1Ch 12mA 145mW
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Broadcom 184
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AUD 2.5777
Multiples of: 1

IL300-DEFG-X017T


High Linearity Optocouplers Single Linear, High Gain, Wide Bandwidth
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Vishay 164
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AUD 3.7269
Multiples of: 1

SFH618A-3


Transistor Output Optocouplers RECOMMENDED ALT 78-VO618A-3
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Vishay 161
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AUD 0.5537
Multiples of: 1

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