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Littlefuse Q Series Switching Thyristors
are bidirectional, solid-state protection devices designed to handle loads from 0.8 A to 40 A rms with 10 mA, 25 mA, and 50 mA IGT in operating Quadrants I, II, III and IV.
Littelfuse
developed the
Q Series Switching Thyristors
for a wide range of
AC
applications to control
AC
power either through full-cycle switching or phase control of current to the load element. The
Q Series
devices are rated to block
voltage
in the OFF condition from 200 V minimum with selected products capable of 1000 V operation. Internally-constructed, isolated packages are available for ease of
heat sinking
with highest
isolation voltage.
Features
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High voltage capability — up to 1000 V
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High surge capability — up to 200 A
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Solid-state switching eliminates arching or contact bounce that create voltage transients
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No contacts to wear out from reaction of switching events
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Electrically-isolated packages
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Glass-passivated junctions
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RoHS Compliant
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Applications
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Home appliances (lighting, heating, temperature control, alarm activation, fan speed)
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Electrical tools (for controlled actions such as motor speed, stapling event, battery charging)
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Outdoor equipment (water sprinklers, gas engine ignition, electronic displays, area lighting, sports equipment)
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View Products List
Additional Resources:
Littelfuse Power Thyristor Datasheets
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