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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FOD817D300W


Optocoupler; THT; Channels:1; Out: transistor; Uinsul:5kV; Uce:70V
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ON Semiconductor 2154
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AUD 0.1781
Multiples of: 1

TCLT1006


Transistor Output Optocouplers Phototransistor Out
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Vishay 2154
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AUD 0.3667
Multiples of: 1

TLP352(D4-TP1,F)


Logic Output Opto-couplers Photocoupler, Photo IC Output
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Toshiba 2147
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AUD 1.1317
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CNY17-3X006


Transistor Output Optocouplers Phototransistor Out Single CTR 100-200%
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Vishay 2141
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AUD 0.351
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PR3BMF51NSLH


Triac & SCR Output Optocouplers Solid State Relay (SSR)
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Sharp 2141
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AUD 1.0038
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TLX9304(TPL,F


Logic Output Opto-couplers IC Coupler Automotive; AEC-Q101
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Toshiba 2137
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AUD 2.9038
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ACPL-C79B-500E


Avago Technologies Optically Isolated Amplifiers Precision Iso-Amp
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Broadcom 2136
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AUD 4.8724
Multiples of: 1

MOC3083M


100mA 60mA 1.23V Two-way thyristor DIP-6 Triac, SCR Output Optoisolators ROHS
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AOTE 2134
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AUD 0.2922
Multiples of: 5

HMHA2801CR2


Fairchild Semiconductor Transistor Output Optocouplers Optocoupler Phototransistor
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ON Semiconductor 2124
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AUD 0.3317
Multiples of: 1

CNY17F-3X007T


Transistor Output Optocouplers Phototransistor Out Single CTR 100-200%
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Vishay 786
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AUD 0.3956
Multiples of: 1

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