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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SFH615A-3


Transistor Output Optocouplers RECOMMENDED ALT 78-VO615A-3
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Vishay 3523
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AUD 0.2672
Multiples of: 1

SFH1617A-2


Transistor Output Optocouplers Phototransistor Out Single CTR > 63-125%
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Vishay 3517
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AUD 0.5581
Multiples of: 1

FODM1007


Transistor Output Optocouplers TRANSISTOR OUTPUT
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ON Semiconductor 3506
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AUD 0.5378
Multiples of: 1

TCET1108


Transistor Output Optocouplers Phototransistor Out
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Vishay 3502
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AUD 0.2602
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VO615A-1


Transistor Output Optocouplers H.Temp Phototrnstr 40-80 % CTR
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Vishay 3501
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AUD 0.4502
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HCPL2630SDM


High Speed Optocouplers HIGHSPEED TRANSISTOR optocouplers
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ON Semiconductor 3486
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AUD 2.1921
Multiples of: 1

TCET1114G


Transistor Output Optocouplers Phototransistor Out Single CTR>160-320%
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Vishay 3481
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AUD 0.3597
Multiples of: 1

6N136S


Lite-On High Speed Optocouplers High Speed 1MBd Transistor Output
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Lite-On 3474
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AUD 0.4156
Multiples of: 1

AT817D-FeL-SE


5kV 50mA 200mV@1mA,20mA 1 6V 1.2V DC SMD-4P Transistor, Photovoltaic Output Optoisolators ROHS
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AOTE 3467
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AUD 0.0397
Multiples of: 10

VO615A-5


Transistor Output Optocouplers DIP-4 OPTOCPL 50-150% CTR -E3
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Vishay 3467
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AUD 0.1729
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