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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EL827S1(TA)


Transistor Output Optocouplers Optocoupler Dual Ch Transistor DC Input
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Everlight 27640
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AUD 0.2825
Multiples of: 5

PS2805C-4-F3-A


CEL Transistor Output Optocouplers Quad sgl TR AC Cplr
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CEL 27578
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AUD 2.0522
Multiples of: 1

PC817C-S


SOP-4-2.54mm Optocouplers - Phototransistor Output ROHS
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Youtai 27480
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AUD 0.0366
Multiples of: 10

PC817B


SMD-4 Optocouplers - Phototransistor Output ROHS
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GOODWORK 27470
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AUD 0.0334
Multiples of: 20

Hot MOC3021M


Triac & SCR Output Optocouplers DIP-6 NON-ZERO TRIAC
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ON Semiconductor 27470
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AUD 0.3116
Multiples of: 1000

6N137M


Logic Output Optoisolator 10Mbps Open Collector 5000Vrms 1 Channel 10kV/µs (Typ) CMTI 8-DIP
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ON Semiconductor 27412
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AUD 0.6659
Multiples of: 1

AT3H4A-CuH-S


3.75kV 50mA 200mV@1mA,20mA 1 1.2V AC,DC SSOP-4 Transistor, Photovoltaic Output Optoisolators ROHS
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AOTE 27092
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AUD 0.0756
Multiples of: 10

TLP291-4(GB-TP,E,T


Optocouplers SO-16 RoHS
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Toshiba 26994
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AUD 0.5894
Multiples of: 1

MOCD217R2M


Optocoupler; SMD; Channels:2; Out: transistor; 2.5kV; SO8
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ON Semiconductor 26675
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AUD 0.5623
Multiples of: 2500

6N136M


High Speed Optocouplers High Speed 1MBd Transistor Output
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Lite-On 26516
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AUD 0.4558
Multiples of: 1

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