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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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

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 : 97000
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USD 0.0983

Multiples of: 1000

4N37SR2M


Transistor Output Optocouplers 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 : 10340
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USD 0.1972

Multiples of: 1

H11AA1M


Transistor Output Optocouplers 6PDIP AC PhotoXstr 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 : 6790
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USD 0.25

Multiples of: 1000

CNY17F3SR2VM


Transistor Output Optocouplers Optocoupler Phototrans No Base
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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 : 6790
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USD 0.2764

Multiples of: 1000

EL817S1(A)(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 : 6760
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USD 0.0369

Multiples of: 10

PS2706-1-F3-A


Transistor Output Optocouplers Hi-Iso Darling 1-Ch
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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 : 6738
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USD 0.5038

Multiples of: 1

PS2801C-1-A


Transistor Output Optocouplers SNGL Tr DC 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 : 6734
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USD 1.0328

Multiples of: 1

LTV-8141


Optoisolator Darlington Output 5000Vrms 1 Channel 4-DIP
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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 : 6685
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USD 0.2255

Multiples of: 1

ELD207(TA)-V


Everlight Transistor Output Optocouplers Optocouplers
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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 : 6625
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USD 0.1924

Multiples of: 5

TLP185(GR-TPR,E(T


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.

Toshiba Availability : 6588
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USD 0.3926

Multiples of: 1

FOD814A300


Optoisolator Transistor Output 5000Vrms 1 Channel 4-DIP
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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 : 6501
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USD 0.13

Multiples of: 1

LTV-M501


High Speed Optocouplers SOP-5 High Speed Phototranistr Output
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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 : 6356
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USD 0.2982

Multiples of: 1

LTV-3120S-TA1


Logic Output Opto-couplers 2.5AIGBT Gate Drive 8Pin SMT 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.

Lite-On Availability : 6233
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USD 0.425

Multiples of: 1

MOCD217R2VM


Transistor Output Optocouplers 8-Pin Optocoupler LC 2Ch Phototrans
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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 : 6077
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USD 0.3135

Multiples of: 1

TLP2361(V4-TPL,E


High Speed Optocouplers Photo-IC 6V 125degC 3750 Vrms
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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 : 4989
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USD 0.3289

Multiples of: 1

SFH690BT


Transistor Output Optocouplers Phototransistor Out Single CTR 100-300%
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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 : 4893
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USD 0.2029

Multiples of: 5

SFH615A-2X019T


Transistor Output Optocouplers Phototransistor Out Single CTR > 63-125%
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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 : 4809
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USD 0.341

Multiples of: 1

LTV-356T


Optocoupler; SMD; Channels:1; Out: transistor; Uinsul:3.75kV
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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 : 431
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USD 0.0588

Multiples of: 5

ELM3054(TA)-V


Triac & SCR Output Optocouplers Triac Driver SMD (Random-Phase)
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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 : 0
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USD 0.2911

Multiples of: 1

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