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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H11L1SR2M


Optocoupler; SMD; Channels:1; Out: Schmitt trigger; 1Mbps
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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 : 3375600
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USD 0.325

Multiples of: 1000

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 : 869543
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USD 0.3206

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 0.0293

Multiples of: 30

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 : 410310
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USD 0.214

Multiples of: 1000

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 : 379764
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USD 0.0371

Multiples of: 35

MOC207R2M


Transistor Output Optocouplers 8-Pin Optocoupler 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 : 371025
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USD 0.2094

Multiples of: 2500

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 : 361213
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USD 0.0468

Multiples of: 5

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 0.1674

Multiples of: 1

HCPL-817-50BE


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 : 315250
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USD 0.1762

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 : 295151
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USD 0.029

Multiples of: 20

EL3H7(B)(TA)-G


Transistor Output Optocouplers 130-260CTR 3750Vrms -55 to +110 Op Temp
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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 : 260057
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USD 0.0443

Multiples of: 50

MOC3041


MOC3041 OPTO TRIAC T/HOLE
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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 : 0
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USD 0.951

Multiples of: 1

053000AB


6N136 #1801 PCNCCNPOC#82 DIP
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Vishay Availability : 0
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USD 0.9738

Multiples of: 1

PC725V


PC725V OPTOCOUPLER T/HOLE
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Sharp Availability : 0
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USD 1.0236

Multiples of: 1

HCPL-2601


HCPL-2601 #1801 PCNCCNPOC#82 T/HOLE
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ON Semiconductor Availability : 0
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USD 1.0282

Multiples of: 1

TLP5214


OPTOCOUPLER, GATE DRIVE, LSOP-16
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Toshiba Availability : 0
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USD 1.072

Multiples of: 1

PC847XJ0000F


PHOTOCOUPLER 4CH OUT 16-DIP PHOTOCOUPLER
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Sharp Availability : 0
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USD 1.2392

Multiples of: 1

HCPL-2531


HCPL-2531 #1801 PCNCCNPOC#82 T/HOLE
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ON Semiconductor Availability : 0
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USD 1.2512

Multiples of: 1

431392HB


TLP620-4 COUPLER TRANS 4 CH 5
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Toshiba Availability : 0
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USD 1.315

Multiples of: 1

HCPL-0630


OPTOISO 3.75KV 2CH OPEN COLL 8SO
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Broadcom Availability : 0
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USD 4.3271

Multiples of: 1

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