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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PS2811-4-F3-A


Transistor Output Optocouplers Optocoupler 16-pin SSOP
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Renesas 1183
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AUD 2.6597
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FOD8333V


Fairchild Semiconductor Logic Output Optocouplers
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ON Semiconductor 1183
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AUD 5.1393
Multiples of: 1

MOC3061TVM


Triac & SCR Output Optocouplers 6Pin600V Optocoupler Zero Cross Triac Dr
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ON Semiconductor 1176
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AUD 0.7317
Multiples of: 1

OPI1264


Transistor Output Optocouplers Optoisolator
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TT Electronics 1176
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AUD 4.1381
Multiples of: 1

HCPL-4100-500E


Avago Technologies Logic Output Optocouplers 20mA Current Loop
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Broadcom 1175
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AUD 6.3939
Multiples of: 1

HCPL3700V


Fairchild Semiconductor Logic Output Optocouplers Optocoupler aCDC to Logic
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ON Semiconductor 1172
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AUD 4.1206
Multiples of: 1

AM816S(B)(T1)-CG


SMD-4P Transistor, Photovoltaic Output Optoisolators ROHS
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Amicc 1170
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AUD 0.0692
Multiples of: 10

PS2533-1-A


Transistor Output Optocouplers Hi-Iso Col-Emit 1-Ch
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CEL 1169
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AUD 1.2166
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TLP241A(TP1,F


MOSFET Output Optocouplers Photo-IC 3mA 40V 5000Vrms
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Toshiba 1165
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AUD 2.1943
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MOC3020M


Optotriac; 5kV; Uout:400V; without zero voltage crossing driver
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Lite-On 1164
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AUD 0.32
Multiples of: 1

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