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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MOC3082TVM


Triac & SCR Output Optocouplers Zerp Crossing 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 : 1144
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USD 0.428

Multiples of: 1

SFH640-2X007


Vishay Semiconductors 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 : 1141
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USD 0.7744

Multiples of: 1

MOC3051SM


100mA 60mA 600V 1.23V Two-way thyristor SMD-6P Triac, SCR 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 : 1134
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USD 0.115

Multiples of: 5

HCNR201-550E


High Linearity Optocouplers 1 Ch 60mW 25mA
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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 : 1133
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USD 1.694

Multiples of: 1

MOC3021TVM


Triac & SCR Output Optocouplers 6Pin 400V Optocoupl Rand Phs Triac Drvr
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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 : 1132
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USD 0.2706

Multiples of: 1

PC851XNNSZ1H


Transistor Output Optocouplers Photocoupler
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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 : 1131
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USD 0.1969

Multiples of: 5

TLP2303(TPL,E(T


SO-5-4.6mm Logic 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.

Toshiba Availability : 1131
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USD 0.5076

Multiples of: 1

CNY17-1X009T


Transistor Output Optocouplers Phototransistor Out Single CTR 40-80%
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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 : 1129
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USD 0.2739

Multiples of: 1

Hot 4N29M


Transistor Output Optocouplers 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 : 1128
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USD 0.1258

Multiples of: 1

CNY17F-2X007


Vishay Semiconductors 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 : 1125
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USD 0.2288

Multiples of: 1

TIL117SR2VM


Transistor Output Optocouplers 6-Pin Optocoupler SMT 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.

ON Semiconductor Availability : 1123
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USD 0.3283

Multiples of: 1

IL4116-X007T


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 : 1122
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USD 2.0677

Multiples of: 1

KTLP161J3 TLD


SOP-4 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 : 1120
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USD 0.3583

Multiples of: 1

OPI120


Optoisolator Transistor with Base Output 15000VDC 1 Channel Axial
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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 : 1118
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USD 10.571

Multiples of: 1

TCDT1102


Transistor Output Optocouplers Phototransistor Out
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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 : 1116
Ship by Thu. 13 Nov to Mon. 17 Nov Calender.png

USD 0.1969

Multiples of: 1

KL817S1-C-TU-F


5kV 1.2V SMD-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.

Kinglight Availability : 1115
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USD 0.0262

Multiples of: 10

H11D1S


Optoisolator Transistor with Base Output 5000Vrms 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.

Lite-On Availability : 1113
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USD 0.2874

Multiples of: 1

PD2401X2


IXYS Integrated Circuits Triac & SCR Output Optocouplers 500V, 1mA AC Solid State Relay
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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 : 1111
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USD 5.474

Multiples of: 1

CNY171VM


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 : 1109
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USD 0.2933

Multiples of: 1

LTV-846


Optocoupler; THT; Channels:4; Out: transistor; Uinsul:5kV; Uce:80V
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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 : 1083
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USD 0.3575

Multiples of: 1

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