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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PS2811-1-F3-A


Optocoupler; SMD; Channels:1; Out: transistor; Uinsul:2.5kV; SSOP4
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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 : 737231
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USD 0.3377

Multiples of: 1

FOD817D3SD


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 : 650870
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USD 0.1094

Multiples of: 1000

FOD817ASD


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 : 621770
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USD 0.105

Multiples of: 1000

MOC3052VM


Triac & SCR Output Optocouplers DIP-6 NON-ZERO TRIAC
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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 : 470884
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USD 0.2989

Multiples of: 1

TLP290(GB-TP,SE(T


Optocouplers SO-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.

Toshiba Availability : 431650
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USD 0.1852

Multiples of: 2500

H11AA1SR2M


Optocoupler; SMD; Channels:1; Out: transistor; Uinsul:7.5kV
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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 : 392850
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USD 0.2322

Multiples of: 1000

CNY173SR2M


Transistor Output Optocouplers Optocoupler Hi Bvceo Phototransistor
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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 : 388970
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USD 0.1956

Multiples of: 1000

MOC207R2M


Transistor Output Optocouplers 8-Pin Optocoupler Phototransistor
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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 : 295850
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USD 0.2045

Multiples of: 2500

VO617A-4X016


Vishay Semiconductors Transistor Output Optocouplers Optocuopler 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.

Vishay Availability : 295269
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USD 0.1078

Multiples of: 1

FODM124R2


Transistor Output Optocouplers Phototransistor Output Optocoupler
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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 : 269175
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USD 0.1455

Multiples of: 2500

PS2801C-1-F3-A


Transistor Output Optocouplers SGL Tr DC Couplr T/R versn die shrnk
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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 : 263542
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USD 0.2541

Multiples of: 1

VO615A-3X007T


Transistor Output Optocouplers Optcplr 100-200% CTR 10mA SMD-4
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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.

Vishay Availability : 246830
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USD 0.1051

Multiples of: 1

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 0.0341

Multiples of: 10

PS2705A-1-F3-A


Transistor Output Optocouplers SGL Tr AC Couplr
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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.

CEL Availability : 233669
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USD 0.385

Multiples of: 1

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 : 230450
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USD 0.1066

Multiples of: 1

MOC217R2M


Transistor Output Optocouplers 8-Pin Optocoupler Phototransistor
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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 : 220675
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USD 0.1838

Multiples of: 2500

LTV-357T-C


Transistor Output Optocouplers P/C LTV-357T BIN C (2.0) 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 : 59994
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USD 0.0384

Multiples of: 5

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 : 11741
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USD 0.0606

Multiples of: 5

HCPL-817-500E


Transistor Output Optocouplers 5000 Vrms 50mA
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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 : 2070
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USD 0.1676

Multiples of: 5

EL817S1(C)(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 : 57
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USD 0.0272

Multiples of: 1

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