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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PC817X4CSP9F


SMD-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.

Sharp Availability : 0
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USD 0.0666

Multiples of: 5

EL354A


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 : 0
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USD 0.067

Multiples of: 5

EL354B


3.75kV 50mA 200mV@1mA,20mA 1 1.2V 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 : 0
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USD 0.0672

Multiples of: 5

EL3H4(A)(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 0.0673

Multiples of: 10

CYPS2501（KK-TP2）


Optocouplers SOP-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.

OCIC Availability : 0
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USD 0.0674

Multiples of: 5

LTV-816-D


New Quadratic Unclassified Data DIP-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.

Lite-On Availability : 0
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USD 0.0677

Multiples of: 5

TLP785(TELS,F


DIP-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.

Toshiba Availability : 0
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USD 0.0679

Multiples of: 5

EL357N(E)(TA)(CH)-VG


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.

Everlight Availability : 0
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USD 0.068

Multiples of: 5

TLP621GB-1


Optocouplers DIP-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.

Youtai Availability : 0
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USD 0.0686

Multiples of: 5

TLP185(GR-TPL,SE


Toshiba Transistor Output Optocouplers X36 PBF Trans Opto couplr 110C3750Vrms
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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 : 0
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USD 0.0689

Multiples of: 5

LTV-817S-L


Optocoupler; SMD; Channels:1; Out: transistor; Uinsul:5kV; Uce:35V
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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 : 0
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USD 0.0691

Multiples of: 1

ISP817CSM


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.

Isocom Availability : 0
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USD 0.0692

Multiples of: 5

TPC816S1B RAG


Transistor Output Optocouplers Photocoupler DC input 70V 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.

Taiwan Semiconductor Availability : 0
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USD 0.0704

Multiples of: 1

TPC816S1D RAG


Transistor Output Optocouplers Photocoupler DC input 70V 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.

Taiwan Semiconductor Availability : 0
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USD 0.0704

Multiples of: 1

CTH217C(V)(T1)


80V 3750V 6us@2mA,100Ω -55℃~+125℃ 8us@2mA,100Ω 50mA 0.1V@1mA,20mA 1 6V 1.24V Phototransistor DC 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.

CT Micro International Availability : 0
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USD 0.0705

Multiples of: 5

FODM121R2


Optocoupler; SMD; Channels:1; Out: transistor; 80V; Mini-flat 4pin
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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 0.0706

Multiples of: 2500

TLP781(D4-GR-TP6,F


Transistor Output Optocouplers Photo Trans Diode 5000Vrms 80V 60mA
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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 : 0
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USD 0.0709

Multiples of: 4000

TLP785(GR-TP6,F)


Toshiba Transistor Output Optocouplers Photo-IC 60mA 80V 5000 Vrms 8000 Vpk
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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 : 0
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USD 0.0711

Multiples of: 5

EL817S2(A)(TA)-G


Everlight 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.

Everlight Availability : 0
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USD 0.0714

Multiples of: 1

EL817SC(TA)-V


Transistor Output Optocouplers Optocoupler Transistor DC Input
Icon ROHS
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 0.0717

Multiples of: 5

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