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-247


Transistor Output Optocouplers PTR 50% 5KV 16 PIN 4CH 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 : 154037
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USD 0.243

Multiples of: 1

Hot MOCD217M


Optocoupler; SMD; Channels:2; Out: transistor; 2.5kV; SO8
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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 : 21598
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USD 0.2541

Multiples of: 3000

EL817MB-F


Optocoupler DC-IN 1-CH Transistor DC-OUT 4-Pin PDIP Tube
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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 : 19797
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USD 0.0311

Multiples of: 10

PS2505L-1-A


Transistor Output Optocouplers Hi-Iso AC Input 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 : 19723
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USD 0.3333

Multiples of: 1

PS2802-4-F3-A


Transistor Output Optocouplers Hi-Iso Darling 4-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 : 19638
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USD 1.573

Multiples of: 1

PS2815-1-F3-A


CEL Transistor Output Optocouplers Hi CTR AC Input 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 : 19474
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USD 0.4752

Multiples of: 1

PC817X3NSZWC


DIP-4 Transistor, Photovoltaic Output Optoisolators 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.

Sharp Availability : 19400
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USD 0.0449

Multiples of: 10

EL851S1(TA)


Transistor Output Optocouplers Photo Transistor SMD
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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 : 19385
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USD 0.2029

Multiples of: 5

EL814S1(TA)-V


Transistor Output Optocouplers Optocoupler Transistor AC Input
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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 : 19327
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USD 0.1029

Multiples of: 5

ITR2006ST30A/TR


SMD 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 : 19327
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USD 0.1606

Multiples of: 5

PC817A


5kV 50mA 200mV@1mA,20mA 1 6V 1.2V DC DIP-4 Transistor, Photovoltaic Output Optoisolators 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.

AOTE Availability : 19322
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USD 0.0216

Multiples of: 20

SFH615A-4X017


Vishay Semiconductors Transistor Output Optocouplers Phototransistor Out Single CTR>160-320%
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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 : 19299
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USD 0.3393

Multiples of: 1

EL817M(C)


5kV 50mA 1 1.2V DIP-4 Transistor Output Optocoupler 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 : 19234
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USD 0.0448

Multiples of: 10

EL0601(TA)


High Speed 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 : 19226
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USD 0.4203

Multiples of: 1

AT354B-CuH-S


3.75kV 50mA 80V 6V 1.4V AC,DC SOP-4 Transistor, Photovoltaic Output Optoisolators 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.

AOTE Availability : 19161
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USD 0.0575

Multiples of: 5

EL817S1(D)(TU)-G


Transistor Output 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 : 18915
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USD 0.0718

Multiples of: 5

EL0631（TA）-V


Optocouplers SO-8_3.9mm 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 : 18814
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USD 0.8034

Multiples of: 1

MOC8204SR2M


Optoisolator Transistor with Base Output 4170Vrms 1 Channel 6-SMD
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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 : 18721
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USD 0.44

Multiples of: 1

PS2501-4-A


Transistor Output Optocouplers Hi-Iso Photo 4-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 : 16470
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USD 0.9438

Multiples of: 1

MOC3041M


Optotriac; 5.3kV; Uout:400V; zero voltage crossing driver; DIP6
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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 : 5279
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USD 0.2884

Multiples of: 1

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