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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HCPL-2731-000E


Optoisolator Darlington Output 3750Vrms 2 Channel 8-DIP
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Broadcom 516
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AUD 3.803
Multiples of: 1

4N49A


Transistor Output Optocouplers Optocoupled Isolator
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TT Electronics 234
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AUD 59.0881
Multiples of: 1

SFH615A-2X009T


Transistor Output Optocouplers H. Relblty 5300 Vrms 63-125% CTR
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Vishay 233
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AUD 0.5171
Multiples of: 1

EL354B


3.75kV 50mA 200mV@1mA,20mA 1 1.2V SOP-4 Transistor, Photovoltaic Output Optoisolators ROHS
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AOTE 232
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AUD 0.0896
Multiples of: 5

TLP5772H(D4,E


Logic Output Opto-couplers Gate Drive Coupler; 2.5A; High Temp; RoHS; VDE
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Toshiba 232
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AUD 1.8538
Multiples of: 1

ACPL-312T-000E


Logic Output Opto-couplers Gate Drive Opto
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Broadcom 232
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AUD 4.7433
Multiples of: 1

LDA111


Transistor Output Optocouplers Optocoupler Single-Transistor
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IXYS 222
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AUD 1.8224
Multiples of: 1

AT4N38-CuH-D


100mA 5kV 300mV@2mA,50mA 1 6V 1.2V DC DIP-6 Transistor, Photovoltaic Output Optoisolators ROHS
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AOTE 97
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AUD 0.1725
Multiples of: 5

HCPL-7710-000E


Logic Output Optoisolator 12.5MBd Push-Pull, Totem Pole 3750Vrms 1 Channel 10kV/µs CMTI 8-DIP
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Broadcom 87
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AUD 6.0597
Multiples of: 1

CNY65A


Transistor Output Optocouplers Phototransistor Out Single CTR 63-125%
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Vishay 0
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AUD 1.5713
Multiples of: 1050

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