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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SFH6106-3


Transistor Output Optocouplers Phototransistor Out Single CTR 100-200%
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Vishay 6965
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AUD 0.4187
Multiples of: 1

4N26S-TA


Transistor Output Optocouplers PTR 20%, 2.5KV
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Lite-On 6930
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AUD 0.1675
Multiples of: 1

SFH618A-2


Transistor Output Optocouplers Phototransistor Out Single CTR 63-125%
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Vishay 6887
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AUD 0.5237
Multiples of: 1

HCNR201-500E


High Linearity Optocouplers 1 Ch 60mW 25mA
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Broadcom 6877
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AUD 2.4846
Multiples of: 1

PS2811-4-A


Transistor Output Optocouplers Optocoupler 16-pin SSOP
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Renesas 6869
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AUD 6.6992
Multiples of: 1

SFH6286-2


Transistor Output Optocouplers Phototransistor Out Single CTR 63-200%
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Vishay 6848
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AUD 0.6574
Multiples of: 1

SFH690DT


Transistor Output Optocouplers Phototransistor Out Single CTR>200-400%
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Vishay 6836
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AUD 0.3842
Multiples of: 1

FOD2742BR2


Transistor Output Optocouplers Error amplifier Optocoupler
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ON Semiconductor 6836
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AUD 0.8094
Multiples of: 1

HCNR200-000E


High Linearity Optocouplers 1 Ch 60mW 25mA
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Broadcom 6812
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AUD 1.7096
Multiples of: 1

EL8171-G


35V 5kV 200mV@1mA,10mA 1 6V 1.2V DC DIP-4 Optocouplers - Phototransistor Output ROHS
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Everlight 6804
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AUD 0.2217
Multiples of: 5

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