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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AT3H4B-CuH-S


3.75kV 50mA 200mV@1mA,20mA 1 1.2V AC,DC SSOP-4 Transistor, Photovoltaic Output Optoisolators ROHS
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AOTE 84283
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AUD 0.0689
Multiples of: 10

KPS28010BTLD


Optocouplers SOP-4_P1.27 RoHS
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Cosmo 64999
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AUD 0.1124
Multiples of: 5

EL3021S1(TA)


Triac & SCR Output Optocouplers 400PBV 5000Vrms -55 to +100 Op Temp
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Everlight 63811
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AUD 0.184
Multiples of: 5

VOS628A-X001T


Transistor Output Optocouplers CTR 50-600% 1MA
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Vishay 62750
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AUD 0.4187
Multiples of: 1

CNY17-3


Transistor Output Optocouplers NPN Phototransistor
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Vishay 60694
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AUD 0.3267
Multiples of: 1

PS9121-F3-AX


CEL High Speed Optocouplers 3.3V 5pin SOP Digi OC HI CMRR NL
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CEL 59580
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AUD 2.0194
Multiples of: 1

MOC3063SM


Triac & SCR Output Optocouplers 6P OPTO TRIAC
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ON Semiconductor 57112
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AUD 0.5153
Multiples of: 1

PC817X2YIPW


Sharp Microelectronics
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Sharp 56614
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AUD 0.0786
Multiples of: 5

LTV-846S


Transistor Output Optocouplers Optocplr Phototrans 4-Channel
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Lite-On 3151
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AUD 0.6186
Multiples of: 1

H11L1SM


Logic Output Opto-couplers SO-6 SCHMITT TRIG
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ON Semiconductor 362
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AUD 0.4052
Multiples of: 1

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