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-0611-000E


High Speed Optocouplers 10MBd 1Ch 5mA
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Broadcom 1554
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AUD 2.6444
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VO617A-9


Vishay Semiconductors Transistor Output Optocouplers Phototransistor Out Single CTR 200-400%
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Vishay 1553
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AUD 0.1625
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4N35-X019T


Transistor Output Optocouplers Phototransistor Out Single CTR>100%
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Vishay 1553
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AUD 0.461
Multiples of: 1

PS2513L-1-F3-A


Transistor Output Optocouplers SGL Tr LW Input COUPLR
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CEL 1552
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AUD 0.696
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TCDT1100G


Transistor Output Optocouplers Phototransistor Out Single CTR > 40%
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Vishay 1550
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AUD 0.344
Multiples of: 1

6N135M


High Speed Optocouplers High Speed 1MBd Transistor Output
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Lite-On 1544
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AUD 0.4326
Multiples of: 1

H11D1-X007T


Transistor Output Optocouplers Phototransistor Out Single CTR > 20%
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Vishay 1543
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AUD 1.2222
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TCDT1123G


Transistor Output Optocouplers Phototransistor Out Single CTR>100-200%
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Vishay 1539
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AUD 0.3195
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TLP2761(E(T


High Speed Optocouplers
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Toshiba 1539
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AUD 1.3138
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Hot FOD8342TR2


Logic Output Opto-couplers 3.0A, HighSpeed Gate Drive Optocoupler
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ON Semiconductor 1531
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AUD 0.8143
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