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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PS2811-1-F3-A


Optocoupler; SMD; Channels:1; Out: transistor; Uinsul:2.5kV; SSOP4
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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 : 739695
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USD 0.3377

Multiples of: 1

EL817S1(B)(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 : 711873
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USD 0.0302

Multiples of: 30

H11AA1SR2M


Optocoupler; SMD; Channels:1; Out: transistor; Uinsul:7.5kV
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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.

ON Semiconductor Availability : 701310
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USD 0.2322

Multiples of: 1000

FOD817ASD


Transistor Output Optocouplers Opto Phototransistor Output SM-DIP4
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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 : 628560
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USD 0.105

Multiples of: 1000

MOC3052VM


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 : 470884
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USD 0.2989

Multiples of: 1

TLP290(GB-TP,SE(T


Optocouplers SO-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 : 460750
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USD 0.1858

Multiples of: 2500

CNY173SR2M


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 : 394790
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USD 0.1956

Multiples of: 1000

HCPL-817-500E


Transistor Output Optocouplers 5000 Vrms 50mA
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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 : 330770
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USD 0.1729

Multiples of: 1

VO617A-4X016


Vishay Semiconductors Transistor Output Optocouplers Optocuopler DIP4
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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 : 295273
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USD 0.1045

Multiples of: 1

EL817S1(C)(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 : 290980
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USD 0.0277

Multiples of: 10

PS2801C-1-F3-A


Transistor Output Optocouplers SGL Tr DC Couplr T/R versn die shrnk
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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 : 263542
Ship by Fri. 07 Nov to Tue. 11 Nov Calender.png

USD 0.2541

Multiples of: 1

VO615A-3X007T


Transistor Output Optocouplers Optcplr 100-200% CTR 10mA SMD-4
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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 : 246830
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USD 0.1051

Multiples of: 1

EL817S1(D)(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 : 242063
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USD 0.0341

Multiples of: 10

LTV-357T-B


Transistor Output Optocouplers P/C LTV-357T BIN B (2.0) STD. TYPE
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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 : 238775
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USD 0.0433

Multiples of: 5

PS2705A-1-F3-A


Transistor Output Optocouplers SGL Tr AC 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 : 233669
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USD 0.385

Multiples of: 1

Hot FOD8173SD


Transistor Output Optocouplers Opto Phototransistor Output SM-DIP4
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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 : 231420
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USD 0.1066

Multiples of: 1

PC817CS


5kV 50mA 200mV@1mA,20mA 1 6V 1.2V 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 : 213746
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USD 0.0219

Multiples of: 20

LTV-357T-C


Transistor Output Optocouplers P/C LTV-357T BIN C (2.0) STD. TYPE
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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 : 188146
Ship by Tue. 11 Nov to Mon. 17 Nov Calender.png

USD 0.0405

Multiples of: 5

MOCD217R2M


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 : 169750
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USD 0.2715

Multiples of: 2500

EL357N(C)(TA)-G


Transistor Output Optocouplers 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.

Everlight Availability : 0
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USD 0.0405

Multiples of: 35

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