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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TLP291-4(GB-TP.E(T


Optocoupler; SMD; Ch: 4; Uinsul: 2.5kV; Uce: 80V; SO16; 50mA
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Toshiba 6293
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AUD 1.182
Multiples of: 1

VO615A-9X017T


Vishay Semiconductors Transistor Output Optocouplers Optocoupler SMD4
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Vishay 3648
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AUD 0.1776
Multiples of: 1

TLP521-4(GB,F)


DIP-16 Transistor, Photovoltaic Output Optoisolators ROHS
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Toshiba 1929
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AUD 2.5523
Multiples of: 1

FOD073LR2


High Speed Optocouplers SC LC HG Split Dar Output Coupler
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ON Semiconductor 1709
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AUD 2.373
Multiples of: 1

TLP185(GR-TPR,E(T


Optocouplers SMD-4 RoHS
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Toshiba 1708
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AUD 0.6937
Multiples of: 1

VO0601-X001T


Triac & SCR Output Optocouplers H. Speed Optocplr 10MBd 5kV/us CMR VDE
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Vishay 1707
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AUD 2.0769
Multiples of: 1

TCDT1120G


Transistor Output Optocouplers Phototransistor Out Single CTR > 40%
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Vishay 1705
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AUD 0.286
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IL250


Transistor Output Optocouplers Phototransistor Out Single CTR >50%
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Vishay 1689
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AUD 0.7731
Multiples of: 1

HCPL-0531-500E


High Speed Optocouplers 1MBd 2Ch 16mA
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Broadcom 1127
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AUD 1.4432
Multiples of: 1

TLP2366(E(T


High Speed Optocouplers
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Toshiba 848
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AUD 0.8821
Multiples of: 875

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