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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SFH615A-3X006


Transistor Output Optocouplers Phototransistor Out Single CTR>100-200%
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Vishay 293
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AUD 0.362
Multiples of: 1

4N27


Everlight Transistor Output Optocouplers Optocouplers
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Everlight 291
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AUD 0.24
Multiples of: 2

6N135-300E


High Speed Optocouplers 1 Mb/s 3750Vrms
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Broadcom 291
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AUD 1.34
Multiples of: 1

TLP293-4(E(T


Transistor Output Optocouplers
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Toshiba 291
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AUD 1.44
Multiples of: 1

LTV-817M-C


Optocouplers DIP-4 RoHS
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Lite-On 291
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AUD 0.0496
Multiples of: 10

TLP292-4(E(T


Transistor Output Optocouplers
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Toshiba 291
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AUD 4.5806
Multiples of: 10

HCNW3120-500E


Logic Output Opto-couplers 1Ch 10mA 700mW
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Broadcom 290
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AUD 2.2209
Multiples of: 1

HCPL-7800-300E


Optocoupler; SMD; Out: isolation amplifier; 3.75kV; Gull wing 8
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Broadcom 290
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AUD 12.3
Multiples of: 1

PS9905-Y-AX


CEL Logic Output Optocouplers UVLO CREEP 14.5mm HS Switch .15us MAX
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CEL 290
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AUD 14.2843
Multiples of: 1

LA212-D


SOP-4 Optocouplers - Phototransistor Output ROHS
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Letex Technology 0
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AUD 0.4042
Multiples of: 1

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