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Showing Results For: Optoisolators - Triac, SCR Output

Optoisolators - Triac, SCR Output

Optoisolators - Triac, SCR Output are semiconductor devices that allow bi-directional or uni-directional control of an AC source and provide isolation between the control and load circuits. Isolation is crucial for electrical appliances as they accidentally avoid or prevent dangerous faults when higher voltages are coupled to the low-voltage circuit. They combine the functionality of an Opto-Triac or an Opto-SCR with a power Triac. 

These photocouplers provide electrical isolation between a low voltage input and a high voltage output while being capable of switching the high voltage output. In addition, they are widely used for a discrete power Triac logic system on equipment, including industrial controls, solenoids, motors, solid-state relays, and consumer equipment.

How to choose these products?

They are selected based on turn-on time, on-state current, and forward voltage.

What are the alternative names for Triac and SCR?

They are also called photocouplers, optical couplers, and optocouplers.

The difference between SCR and Triac:

An SCR (Silicon Controlled Rectifier) is similar to a Triac; however, the main difference between SCR and Triac (Triode for Alternating Current) is that SCR is a uni-directional while Triac is a bi-directional semiconductor device. 

Advantages of Optoisolators - Triac, SCR Output:

 These semiconductor devices feature multiple benefits. For example, Triac can be triggered with gate pulses of positive or negative polarity and requires a single heatsink of a slightly larger size. In the case of SCR, two smaller size heatsinks and a single fuse for protection are essential.

Applications of Optoisolators - Triac, SCR Output:

These devices are commonly used anywhere in situations, specifically in a switching application needed to protect and electrically isolate two circuits. They are used in applications, including: 

  • Lamps
  • Fans 
  • Motors
  • High Voltage Ac Switching
  • Gas Pumps
  • Light Controls
  • Temperature Controls
  • AC Motor Starters
  • Washing Machines
  • Microwave Ovens 
  • Water Heaters
  • Solenoid or Valve Controls
  • Static Power Switch
  • EM Contactors 
  • AC Motor Drivers.

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Enrgtech #
Manufacturer Part No
Name
Availability
Price
Rating
Fairchild Semiconductor
MOC3021VM, Fairchild Semiconductor
1285 In Stock
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1287 +
£ 0.216
Fairchild Semiconductor
FOD4116S, Fairchild Semiconductor
263 In Stock
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Fairchild Semiconductor
MOC3063VM, Fairchild Semiconductor
21 In Stock
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1 +
£ 0.902
Fairchild Semiconductor
MOC3163VM, Fairchild Semiconductor
551 In Stock
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232 +
£ 0.773
Fairchild Semiconductor
FOD4118, Fairchild Semiconductor
270 In Stock
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123 +
£ 2.17
Fairchild Semiconductor
MOC3082SM, Fairchild Semiconductor
1285 In Stock
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601 +
£ 0.454
Fairchild Semiconductor
FOD4108S, Fairchild Semiconductor
1030 In Stock
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174 +
£ 1.50
Fairchild Semiconductor
MOC3062SR2M, Fairchild Semiconductor
711 In Stock
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713 +
£ 0.405
Fairchild Semiconductor
MOC3010M, Fairchild Semiconductor
43 In Stock
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1 +
£ 0.902
Fairchild Semiconductor
MOC3020VM, Fairchild Semiconductor
48 In Stock
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1 +
£ 0.902
Fairchild Semiconductor
MOC3041SVM, Fairchild Semiconductor
1080 In Stock
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511 +
£ 0.525
Fairchild Semiconductor
MOC3051TVM, Fairchild Semiconductor
67 In Stock
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1 +
£ 0.902
Fairchild Semiconductor
MOC3081SM, Fairchild Semiconductor
1079 In Stock
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500 +
£ 0.409
Fairchild Semiconductor
FOD410SDV, Fairchild Semiconductor
13 In Stock
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1 +
£ 0.902
Fairchild Semiconductor
FOD410SV, Fairchild Semiconductor
14 In Stock
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1 +
£ 0.902
Fairchild Semiconductor
FOD4118SD, Fairchild Semiconductor
223 In Stock
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99 +
£ 1.91
Fairchild Semiconductor
FODM3012-NF098, Fairchild Semiconductor
70 In Stock
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1 +
£ 0.902
Fairchild Semiconductor
MOC3083SR2VM, Fairchild Semiconductor
76 In Stock
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1 +
£ 0.902
Infineon Technologies
BRT21H, Infineon Technologies
59 In Stock
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1 +
£ 0.902
Fairchild Semiconductor
MOC3021SVM, Fairchild Semiconductor
1779 In Stock
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865 +
£ 0.298
Fairchild Semiconductor
MOC3032SM, Fairchild Semiconductor
454 In Stock
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200 +
£ 0.329
Fairchild Semiconductor
FOD4116SV, Fairchild Semiconductor
21 In Stock
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1 +
£ 0.902
Fairchild Semiconductor
FOD4216V, Fairchild Semiconductor
37 In Stock
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1 +
£ 0.902
Fairchild Semiconductor
FOD4116SDV, Fairchild Semiconductor
20 In Stock
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1 +
£ 0.902
Fairchild Semiconductor
FOD420SV, Fairchild Semiconductor
365 In Stock
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167 +
£ 1.60
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FAQs
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UK orders normally take between 2/3 working days. International orders normally take between 3/5 working days for all products including Optoisolators - Triac, SCR Output.
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