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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PS8501-AX


CEL High Speed Optocouplers SGL Tr DC 1Mbps HI CMMR
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CEL 394
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AUD 2.4885
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EL825


Transistor Output Optocouplers Photo Darlington Thru-Hole
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Everlight 392
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AUD 0.5022
Multiples of: 1

FOD817DS


Optocoupler; SMD; Channels:1; Out: transistor; Uinsul:5kV; Uce:70V
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ON Semiconductor 390
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AUD 0.3867
Multiples of: 1

6N135


High Speed Optocouplers HS Phototransistor
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Vishay 389
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AUD 0.9622
Multiples of: 1

6N135-300E


High Speed Optocouplers 1 Mb/s 3750Vrms
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Broadcom 388
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AUD 1.3778
Multiples of: 1

OR-357B-S-TP-G


80V 5000V 50mA 0.1V@1mA,20mA 1 6V 1.2V DC SOP-4 Optocouplers - Phototransistor Output ROHS
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Orient 388
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AUD 0.0482
Multiples of: 10

LTV-817M-B


Optocouplers DIP-4 RoHS
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Lite-On 388
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AUD 0.0641
Multiples of: 10

VOL628A-3T


Transistor Output Optocouplers AC Input, Phtotrnstr 100-200% CTR
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Vishay 388
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AUD 0.351
Multiples of: 1

MOC3061SR2VM


Fairchild Semiconductor Triac & SCR Output Optocouplers 6Pin600V Optocoupler Zero Cross Triac Dr
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ON Semiconductor 388
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AUD 0.6239
Multiples of: 1

CNY75GC


Transistor Output Optocouplers Phototransistor Out Single CTR 160-320%
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Vishay 386
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AUD 0.3511
Multiples of: 1

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