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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FOD817CSD


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 : 75660
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USD 0.1016

Multiples of: 1000

TLP185(GB-TPR,SE(T


Transistor Output Optocouplers
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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 : 75660
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USD 0.1347

Multiples of: 3000

S2S3LA0F


Triac & SCR Output Optocouplers 5mA Ift 600V nonZC Phototriac 3Kpcs
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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 : 74478
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USD 0.5926

Multiples of: 1

VOM617A-7T


Transistor Output Optocouplers Phototransistor Out CTR 80-160% 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 : 73281
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USD 0.1277

Multiples of: 1

TLP291(V4GBTP,SE(T


Optocouplers SO4 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 : 72750
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USD 0.1445

Multiples of: 2500

PC817X3NSZW


Transistor Output Optocouplers
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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 : 72090
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USD 0.0509

Multiples of: 5

KPC357NT0CTLD


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.

Cosmo Availability : 70771
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USD 0.0511

Multiples of: 5

VOS617AT


Transistor Output Optocouplers CTR 50-600% 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 : 70036
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USD 0.1592

Multiples of: 1

TLP265J(TPL,E


Triac & SCR Output Optocouplers Non Zero Turn On 600V 70mA 3750Vrms
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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 : 69479
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USD 0.2302

Multiples of: 1

MOC3023SM


Optotriac; 5kV; Uout:400V; without zero voltage crossing driver
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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 : 68551
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USD 0.2154

Multiples of: 1000

GX817C-S


35V 5000V -55℃~+110℃ 50mA 18us@2mA,100Ω 18us@2mA,100Ω 0.1V@1mA,20mA 1 6V 1.2V Phototransistor DC 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.

GUOXIN JIAPIN SEMICONDUCTOR Availability : 68472
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USD 0.0243

Multiples of: 10

PS9121-F3-AX


CEL High Speed Optocouplers 3.3V 5pin SOP Digi OC HI CMRR NL
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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 : 66856
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USD 1.342

Multiples of: 1

TCMD1000


Transistor Output Optocouplers Photodarlington Out Single CTR >600%
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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 : 66359
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USD 0.2571

Multiples of: 1

H11L1SM


Logic Output Opto-couplers SO-6 SCHMITT TRIG
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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 : 64629
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USD 0.3185

Multiples of: 1000

TLP152(TPL,E


Logic Output Opto-couplers Gate Drive Phcplr 3750 Vrms
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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 : 64383
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USD 0.2853

Multiples of: 1

PS2805C-4-F3-A


CEL Transistor Output Optocouplers Quad sgl TR AC 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.

CEL Availability : 64369
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USD 1.2965

Multiples of: 1

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 : 54611
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USD 0.0458

Multiples of: 50

LTV-356T-C


Transistor Output Optocouplers P/C LTV-356T 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 : 50173
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USD 0.0444

Multiples of: 5

TLP185(GB-TPL,SE(T


Transistor Output Optocouplers
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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 : 8220
Ship by Mon. 05 May to Thu. 08 May Calender.png

USD 0.0698

Multiples of: 5

FOD814A


Optocoupler; THT; 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 : 3880
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USD 0.1318

Multiples of: 2000

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