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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PD2401X2


IXYS Integrated Circuits Triac & SCR Output Optocouplers 500V, 1mA AC Solid State Relay
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IXYS 1111
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AUD 8.6889
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CNY171VM


Transistor Output Optocouplers Optocoupler Hi Bvceo Phototransistor
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ON Semiconductor 1109
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AUD 0.4655
Multiples of: 1

IL213AT


Transistor Output Optocouplers Phototransistor Out Single CTR >100%
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Vishay 1104
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AUD 0.5024
Multiples of: 1

VO617A-2X017T


Transistor Output Optocouplers H. Relblty 5300 Vrms 63-125% CTR, VDE
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Vishay 1100
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AUD 0.1724
Multiples of: 1

MOC3063M


100mA 60mA 600V 1.5V Two-way thyristor DIP-6 Optocouplers - Thyristor Signal Output ROHS
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Youtai 1091
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AUD 0.1537
Multiples of: 5

K824P


Transistor Output Optocouplers Phototransistor Out Dual CTR >20%
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Vishay 1089
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AUD 0.6731
Multiples of: 1

HCPL-3150-300E


Logic Output Opto-couplers 0.5A IGBT Gate Drive
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Broadcom 1089
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AUD 2.7164
Multiples of: 1

TLP170J(TP,F)


MOSFET Output Optocouplers PhotorelayMOS FET ION=2.5Amax
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Toshiba 1085
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AUD 1.3811
Multiples of: 1

HCPL-0601-000E


High Speed Optocouplers 10MBd 1Ch 5mA
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Broadcom 1082
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AUD 2.1522
Multiples of: 1

OLS449


Transistor Output Optocouplers Radiation Tolerant Phototransistor Optocoupler
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Skyworks 1079
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AUD 165.715
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