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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FOD814SD


Optocoupler; SMD; Channels:1; Out: transistor; Uinsul:5kV; Uce:70V
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ON Semiconductor 295
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AUD 0.3741
Multiples of: 5

4N22


Optek TT Electronics Transistor Output Optocouplers Optocoupled Isolator
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TT Electronics 212
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AUD 54.6683
Multiples of: 1

HCPL-4502-000E


High Speed Optocouplers 1MBd 1Ch 16mA
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Broadcom 210
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AUD 3.2889
Multiples of: 1

LTV-T350S-TA1


500ns 15V~30V 25kV/us DC - Optocouplers - Logic Output ROHS
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Lite-On 209
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AUD 0.8626
Multiples of: 1

TLP290(TP,SE(T


SOIC-4 Transistor, Photovoltaic Output Optoisolators ROHS
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Toshiba 207
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AUD 0.5293
Multiples of: 1

HCPL-M456-500E


Avago Technologies Logic Output Optocouplers 1MBd 3750Vdc
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Broadcom 207
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AUD 0.9167
Multiples of: 1

ACPL-247-560E


Transistor Output Optocouplers Phototx Coupler Quad
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Broadcom 207
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AUD 1.3662
Multiples of: 1

PS2502L-4-A


Transistor Output Optocouplers Hi-Iso Darling 4-Ch
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CEL 203
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AUD 2.6148
Multiples of: 1

OR-6N136S-TA1


80V 5kV 50mA 100mV@1mA,20mA 1 6V 1.2V DC SOP-8 Optocouplers - Phototransistor Output ROHS
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Orient 202
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AUD 0.3567
Multiples of: 5

4N25-X007T


Vishay Semiconductors Transistor Output Optocouplers Phototransistor Out Single CTR>20%
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Vishay 202
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AUD 0.3824
Multiples of: 1

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