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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EL357B


3.75kV 50mA 200mV@1mA,20mA 1 6V 1.2V DC SOP-4 Transistor, Photovoltaic Output Optoisolators ROHS
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AOTE 2987
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AUD 0.0677
Multiples of: 10

HCNR200-300E


Optoisolator Photovoltaic, Linearized Output 5000Vrms 1 Channel 8-DIP Gull Wing
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Broadcom 594
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AUD 4.5134
Multiples of: 1

HCPL0700R2


Fairchild Semiconductor High Speed Optocouplers Hi Gain Optocoupler 1Ch LC Darlington
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ON Semiconductor 353
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AUD 1.8619
Multiples of: 1

Hot SFH6106-1T


Transistor Output Optocouplers Phototransistor Out Single CTR > 40-80%
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Vishay 349
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AUD 0.4531
Multiples of: 1

4N27M


Transistor Output Optocouplers PTR 20%, 1.5KV
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Lite-On 348
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AUD 0.1904
Multiples of: 1

MOC3022SR2VM


Triac & SCR Output Optocouplers 6Pin 400V Optocoupl Rand Phs Triac Drvr
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ON Semiconductor 348
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AUD 0.4965
Multiples of: 1

MOC3032VM


Fairchild Semiconductor Triac & SCR Output Optocouplers 6Pin250V Optocoupler Zero Cross Triac Dr
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ON Semiconductor 346
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AUD 0.573
Multiples of: 1

SFH6106-2T


Transistor Output Optocouplers Phototransistor Out Single CTR > 63-125%
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Vishay 344
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AUD 0.426
Multiples of: 1

LTV-3120


Logic Output Opto-couplers 2.5AIGBT Gate Drive 8Pin Dip Optocoupler
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Lite-On 344
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AUD 1.3085
Multiples of: 1

TLP293-4(V4LGB.E(T


Optocoupler; SMD; Ch: 4; Uinsul: 3.75kV; Uce: 80V; SO16; 50mA
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Toshiba 343
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AUD 1.446
Multiples of: 1

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