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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CT785GR


Optocouplers DIP-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.

CT Micro International Availability : 305
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USD 0.0607

Multiples of: 5

TLP358H(F)


Logic Output Optocouplers 6A Driver Coupler
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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 : 305
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USD 2.758

Multiples of: 1

CNY172M


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 : 299
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USD 0.1876

Multiples of: 1

LDA100S


IXYS Integrated Circuits Transistor Output Optocouplers Optocoupler Single-Transistor
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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.

IXYS Availability : 298
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USD 0.715

Multiples of: 1

FOD260LS


High Speed Optocouplers 10 Mbit/s S-CH 3.3V LG Output Optocoup
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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 : 298
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USD 0.8284

Multiples of: 1

LDA102


Transistor Output Optocouplers Optocoupler Single-Transistor
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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.

IXYS Availability : 297
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USD 0.3304

Multiples of: 1

Hot ILQ621GB


Transistor Output Optocouplers Phototransistor Out Quad CTR >100%
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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 : 297
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USD 1.19

Multiples of: 1

TLP5774H(TP,E


Logic Output Opto-couplers Gate Drive Coupler; 4A; High Temp; 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 : 296
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USD 1.1849

Multiples of: 1

6N137-300E


High Speed Optocouplers 10 Mb/s 3750Vrms
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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 : 296
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USD 1.526

Multiples of: 1

LTV-825S


Transistor Output Optocouplers Optocplr Phototrans 2-CHNL
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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 : 295
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USD 0.2321

Multiples of: 1

6N136-000E


High Speed Optocouplers 1 Mb/s 3750Vrms
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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 : 294
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USD 0.7602

Multiples of: 1

HCPL2531SDVM


Fairchild Semiconductor High Speed 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.

ON Semiconductor Availability : 294
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USD 0.9672

Multiples of: 1

HCPL2730SD


Fairchild Semiconductor High Speed Optocouplers Hi Gain Optocoupler LC Darlington 2Ch
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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 : 294
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USD 1.0764

Multiples of: 1

SFH618A-3X006


Vishay Semiconductors Transistor Output Optocouplers Phototransistor Out Single CTR>100-200%
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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 : 293
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USD 0.3622

Multiples of: 1

MOC3062M


Optotriac; 5.3kV; Uout:600V; 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 : 293
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USD 0.3835

Multiples of: 1

AT4N37-CuH-S


100mA 5kV 300mV@2mA,50mA 1 6V 1.2V DC SMD-6P 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 : 291
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USD 0.131

Multiples of: 5

AT4N29-CuH-S


100mA 5kV 1V@2mA,8mA 1 3V 1.3V DC SMD-6P 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 : 291
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USD 0.1866

Multiples of: 5

HCPL-814-00AE


Optocoupler AC-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.

Broadcom Availability : 291
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USD 0.3297

Multiples of: 100

LTV-6341W-TA1


SOP-6-6.8mm 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.

Lite-On Availability : 291
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USD 0.6643

Multiples of: 1

HCPL-2400-000E


High Speed Optocouplers 20MBd 1Ch 4mA
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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 : 291
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USD 3.64

Multiples of: 1

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