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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PS2911-1-F3-AX


OPTOCOUPLER, PHOTOTRANSISTOR, 2.5KV, SMD; No. of Channels:1 Channel; Optocoupler Case Style:SOP; No. of Pins:4Pins; Forward Current If Max:50mA; Isolation Voltage:2.5kV; CTR Min:100%; Collector Emitter Voltage V(br)ceo:40V; Product Range:-; SVHC:No SVHC (12-Jan-2017); Input Current:50mA; No. of Channels:1Channels; Optocoupler Output Type:Phototransistor; Output Voltage:40V
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Renesas 52765
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AUD 1.3549
Multiples of: 1

HCNW4503-000E


High Speed Optocouplers 1Ch 16mA 700mW
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Broadcom 586
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AUD 2.8209
Multiples of: 1

MOC3021VM


Triac & SCR Output Optocouplers 6Pin 400V Optocoupl Rand Phs Triac Drvr
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ON Semiconductor 273
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AUD 0.3776
Multiples of: 1

TLP5751H(D4TP4,E


Logic Output Opto-couplers GATE DRIVE COUPLER
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Toshiba 271
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AUD 1.4154
Multiples of: 1

HCPL-4200-000E


Logic Output Opto-couplers 20mA Current Loop
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Broadcom 270
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AUD 6.4087
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CNY17-3


Transistor Output Optocouplers 100-200CTR 5000Vrms -55 to +110 Op Temp
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Everlight 268
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AUD 0.3699
Multiples of: 2

4N28


Everlight Transistor Output Optocouplers Optocouplers
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Everlight 267
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AUD 0.2403
Multiples of: 2

HCPL-7800-300E


Optocoupler; SMD; Out: isolation amplifier; 3.75kV; Gull wing 8
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Broadcom 261
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AUD 12.3493
Multiples of: 1

AT0531-CuH-S


1Mbit/s 1.5us -0.5V~+30V 10kV/us DC SOP-8 Logic Output Optoisolators ROHS
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AOTE 237
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AUD 1.5633
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ATH11L1-CuH-S


15V 7kV DC SMD-6P Logic Output Optoisolators ROHS
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AOTE 145
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AUD 0.3226
Multiples of: 5

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