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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FODM3063


Optotriac; 3.75kV; triac; Mini-flat 4pin; Channels:1
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ON Semiconductor 3783
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AUD 0.6396
Multiples of: 1

SFH615AA-X007


Transistor Output Optocouplers Phototransistor Out Single CTR > 50-600%
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Vishay 3406
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AUD 0.3713
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FOD8384


Fairchild Semiconductor Logic Output Optocouplers
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ON Semiconductor 3397
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AUD 4.2451
Multiples of: 1

PS2761B-1-F3-L-A


Optocoupler DC-IN 1-CH Transistor DC-OUT 4-Pin SOP T/R
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CEL 3395
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AUD 0.1737
Multiples of: 25

VOM617A-6X001T


Transistor Output Optocouplers SOP-4 CPLR 250-500% CTR 5MAVDE
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Vishay 3393
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AUD 0.2378
Multiples of: 1

CNY17F4SR2M


Transistor Output Optocouplers Optocoupler Phototrans No Base
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ON Semiconductor 3393
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AUD 0.3822
Multiples of: 1

VO610A-1


Transistor Output Optocouplers Phototransistor Out CTR 40-80%
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Vishay 3364
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AUD 0.2216
Multiples of: 1

LTV-8241S


Transistor Output Optocouplers Optocoupler AC in 2-CHNL
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Lite-On 2814
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AUD 0.7519
Multiples of: 1

VOS615A-2X001T


Transistor Output Optocouplers CTR 63-125% 10MA
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Vishay 2738
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AUD 0.2459
Multiples of: 1

CNY17-4


Optoisolator Transistor with Base Output 5000Vrms 1 Channel 6-DIP
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Lite-On 1261
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AUD 0.1875
Multiples of: 65

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