Fluorescent and LED light dimmer solutions available from Littelfuse include MOSFETs and triacs for current switching. This block diagram shows
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Properly named triodes for alternating current, TRIACs act as thyristors. They serve as solid state switches in heaters, lighting controls, and motor drives for power tools and home appliances. Three versions of the ac switches exist. Sensitive TRIACs open and close low-voltage digital control circuits. Standard TRIACs ensure the continuous flow of alternating current. Alternistor TRIACs handle high-speed switching tasks that produce large inductive loads. Each TRIAC produced by Littelfuse comes in sensitive, standard, and alternistor versions. All are designed for mounting on the surface of printed circuit boards.
- High voltage capabilities, from 500 V ac to 1.2 kVa
- Surge capabilities up to 200 A
- Epoxy molding has UL 94 flammability rating of V-0
- UL Recognized
- RoHS compliant
- Passivate junctions reduce current leakage
- Designed to mount on PCBs with screws or solder
- Available with several types of terminals
- Solid state switching eliminates arcing that creates voltage
- Require small gate activation pulses each half cycle
TRIAC Parts
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TRIAC Applications
Dimmers
Refrigerators
From doors to compressors, Littelfuse provides electronic components for refrigerators. A block diagram shows how our temperature probes, reed
Water Heaters
Highly efficient and long-lived water heaters use high-performance electronic components. Depend on Littelfuse to provide contactors, capacitors,
Pumps, Heaters & Small Motors
As a simplified block diagram shows, a complex system of pumps, motors, and heaters allows coffee makers and espresso machines to grind beans,
Rice Cooker Motherboards
A simplified block diagram for a rice cooker motherboard illustrates the need for metal oxide varistors, Schottky diode rectifiers, and triacs.
