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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PS2561DL-1Y-F3-A


CEL Transistor Output Optocouplers BV=5000Vr.m.s 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.

CEL Availability : 5837
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USD 0.3238

Multiples of: 1

OR-357C


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.

Orient Availability : 5820
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USD 0.0292

Multiples of: 10

LTV-356T-C


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.

Youtai Availability : 5820
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USD 0.0364

Multiples of: 10

EL357B


3.75kV 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 : 5820
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USD 0.0437

Multiples of: 10

OR-3H4B-TP-G


80V 3750V 50mA 0.1V@1mA,20mA 1 6V 1.2V AC 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.

Orient Availability : 5820
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USD 0.0438

Multiples of: 5

LTV-354T-A


3.75kV 50mA 200mV@1mA,20mA 1 1.4V AC,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 : 5820
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USD 0.0462

Multiples of: 10

MTLP181GB


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.

MSKSEMI Availability : 5820
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USD 0.0471

Multiples of: 10

SL-1009


80V 5000V 50mA 0.3V@1mA,10mA 1 6V 1.25V DC SOP-4-2.54mm 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.

SLKORMICRO Availability : 5820
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USD 0.0666

Multiples of: 1

PC817X3CSP9F


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 : 5820
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USD 0.084

Multiples of: 5

4N26S-TA


Transistor Output Optocouplers PTR 20%, 2.5KV
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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 : 5820
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USD 0.0898

Multiples of: 1000

TLP781(GB,F)


Toshiba Transistor Output Optocouplers Transistor Coupler CTR=100-600% BVS=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.

Toshiba Availability : 5820
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USD 0.1187

Multiples of: 5

VOS617A-4T


Vishay Semiconductors Transistor Output Optocouplers CTR 160-320% 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 : 5820
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USD 0.1295

Multiples of: 3000

VOL617A-3T


Vishay Semiconductors Transistor Output Optocouplers Optocoupler LSOP4
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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 : 5820
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USD 0.1308

Multiples of: 3000

FOD814A3SD


Optocoupler; SMD; Channels:1; Out: transistor; Uinsul:5kV; Uce:70V
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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 : 5820
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USD 0.1356

Multiples of: 1000

VOL617A-4X001T


Transistor Output Optocouplers Phototransistor Out CTR 100-200% IF=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 : 5820
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USD 0.1639

Multiples of: 1

VOL617AT


Transistor Output Optocouplers CPLR
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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 : 5820
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USD 0.1704

Multiples of: 1

4N35SVM


Transistor Output Optocouplers 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 : 5820
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USD 0.1838

Multiples of: 1000

VOL618AT


Transistor Output Optocouplers CPLR
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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 : 5820
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USD 0.2285

Multiples of: 1

FOD817CS


Optocoupler; SMD; Channels:1; Out: transistor; Uinsul:5kV; Uce:70V
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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 : 3686
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USD 0.1425

Multiples of: 250

MOC217M


Transistor Output Optocouplers SO-8 PHOTO TRANS
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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 : 1152
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USD 0.1642

Multiples of: 1

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