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-817B


Lite-On Transistor Output Optocouplers Optocoupler 50% 5kv 4Pin SMT
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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 : 23008
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USD 0.0331

Multiples of: 10

PS2811-4-F3-A


Transistor Output Optocouplers Optocoupler 16-pin SSOP
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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 : 5431
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USD 1.7375

Multiples of: 1

FOD420


Triac & SCR Output Optocouplers 600V RANDOM PHASE 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 : 5249
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USD 1.859

Multiples of: 1

KMOC3021S TL


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.

Cosmo Availability : 5218
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USD 0.1148

Multiples of: 5

IL410-X001


Triac & SCR Output Optocouplers Phototriac Output Zero Crossing
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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 : 5215
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USD 1.932

Multiples of: 1

H11L2SVM


Logic Output Optoisolator 1MHz Open Collector 4170Vrms 1 Channel CMTI 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 : 5198
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USD 0.7176

Multiples of: 1

6N137S


SOP-8 Optocouplers - Logic 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.

Youtai Availability : 5145
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USD 0.1572

Multiples of: 5

SFH640-2


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 : 5134
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USD 0.704

Multiples of: 1

RV1S2211ACCSP-10YV#SC0


Photocoupler with 8.2mm Creepage Distance 5000Vrms 4-Pin SSOP Surface Mount
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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 : 5131
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USD 0.756

Multiples of: 1

VOS617A-2X001T


Transistor Output Optocouplers CTR 63-125% 5mA
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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 : 5104
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USD 0.1584

Multiples of: 1

OPI110C


Transistor Output Optocouplers 10KV ISOLATION
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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.

TT Electronics Availability : 5080
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USD 2.618

Multiples of: 1

AT817B-FeL-M


5kV 50mA 200mV@1mA,20mA 1 6V 1.2V DC DIP-4M 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 : 5077
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USD 0.0253

Multiples of: 20

4N25M


Optocoupler; THT; Channels:1; Out: transistor; Uinsul:2.5kV; 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.

Lite-On Availability : 5044
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USD 0.1056

Multiples of: 1

CNY17F-2M


Transistor Output Optocouplers HCEV, 63%, 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.

Lite-On Availability : 5036
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USD 0.1147

Multiples of: 1

PC817X4NSZ1B


Transistor Output Optocouplers OPTOISOLATOR 5KV TRANS DIP, Optoisolator Transistor Output 1 Channel
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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 : 5029
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USD 0.2145

Multiples of: 1

PS2533L-1-F3-A


Transistor Output Optocouplers Optocoupler 4-pin 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.

Renesas Availability : 4969
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USD 0.7865

Multiples of: 1

MOC223R2M


Transistor Output Optocouplers 8pin Optocoupler Photodarlington
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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 : 4753
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USD 0.2651

Multiples of: 1

MOC213M


Optocoupler; SMD; Channels:1; Out: transistor; Uinsul: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 : 2910
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USD 0.1925

Multiples of: 3000

MOC3052M


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 : 1978
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USD 0.2582

Multiples of: 1

TLP250H(F)


Logic Output Opto-couplers Photocoupler, Photo IC 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.

Toshiba Availability : 1213
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USD 0.704

Multiples of: 1

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