About Optocouplers / Photocouplers

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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LTV-354T-A


Transistor Output Optocouplers P/C LTV-354T-A STD. TYPE
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Lite-On Availability : 252700
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USD 0.0717
Multiples of: 5

EL817S1(D)(TU)-F


Optocouplers SMD-4 RoHS
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Everlight Availability : 242063
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USD 0.0352
Multiples of: 10

FOD817CSD


Optocoupler; SMD; Channels:1; Out: transistor; Uinsul:5kV; Uce:70V
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

ON Semiconductor Availability : 241530
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USD 0.1128
Multiples of: 1000

Hot FOD8173SD


Transistor Output Optocouplers Opto Phototransistor Output SM-DIP4
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

ON Semiconductor Availability : 239768
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USD 0.1053
Multiples of: 1

EL3063


Triac & SCR Output Optocouplers 600PBV 5000Vrms -55 to +100 Op Temp
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Everlight Availability : 202252
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USD 0.0981
Multiples of: 13

EL357NB


80V 3750V 80mA 0.1V@1mA,20mA 1 6V 1.2V DC SOP-4 Optocouplers - Phototransistor Output ROHS
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Everlight Availability : 201053
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USD 0.0448
Multiples of: 10

TLP181GB-S


Optocouplers SOP-4 RoHS
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Youtai Availability : 194839
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USD 0.0656
Multiples of: 5

LTV-217-B-G


Transistor Output Optocouplers Optocoupler, AC 600%, 5KV, 4 PIN
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Lite-On Availability : 191288
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USD 0.0528
Multiples of: 5

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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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Renesas Availability : 183811
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USD 0.8682
Multiples of: 1

HCPL-181-06CE


Transistor Output Optocouplers 3750 Vrms 0.2mA
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Broadcom Availability : 180420
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USD 0.3192
Multiples of: 1

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