About: Quadrac

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A QUADRAC is a special type of thyristor which combines a DIAC and a TRIAC in a single package. The DIAC is the triggering device for the TRIAC. Thyristors are four-layer (PNPN) semiconductor devices that act as switches, rectifiers or voltage regulators in a variety of applications. When triggered, thyristors turn on and become low-resistance current paths. They remain so even after the trigger is removed, and until the current is reduced to a certain level (or until they are triggered off). Diacs are bi-directional diodes that switch AC voltages and trigger triacs or silicon-controlled rectifiers (SCRs). Except for a small leakage current, diacs do not conduct until the breakover voltage is reached. Triacs are three-terminal, silicon devices that function as two SCRs configured in an inv

Attributes	Values
rdf:type	yago:WikicatSolidStateSwitches yago:Artifact100021939 yago:Control103096960 yago:Device103183080 yago:Instrumentality103575240 yago:Mechanism103738472 yago:Object100002684 yago:PhysicalEntity100001930 yago:Switch104372370 yago:Whole100003553
rdfs:label	Quadrac (en)
rdfs:comment	A QUADRAC is a special type of thyristor which combines a DIAC and a TRIAC in a single package. The DIAC is the triggering device for the TRIAC. Thyristors are four-layer (PNPN) semiconductor devices that act as switches, rectifiers or voltage regulators in a variety of applications. When triggered, thyristors turn on and become low-resistance current paths. They remain so even after the trigger is removed, and until the current is reduced to a certain level (or until they are triggered off). Diacs are bi-directional diodes that switch AC voltages and trigger triacs or silicon-controlled rectifiers (SCRs). Except for a small leakage current, diacs do not conduct until the breakover voltage is reached. Triacs are three-terminal, silicon devices that function as two SCRs configured in an inv (en)
dcterms:subject	Solid state switches
Wikipage page ID	26106381 (xsd:integer)
Wikipage revision ID	1053079989 (xsd:integer)
Link from a Wikipage to another Wikipage	Electric current DIAC Voltage Integrated circuit Silicon-controlled rectifier Solid state switches Junction temperature Alternating current Diode Rectifier Root mean square Voltage regulator TRIAC Zener effect Semiconductor Thyristor Reverse voltage Leakage current
Link from a Wikipage to an external page	https://www.littelfuse.com/~/media/electronics/datasheets/switching_thyristors/littelfuse_thyristor_q6012lth1led_datasheet.pdf.pdf https://web.archive.org/web/20091107040540/http:/semiconductors.globalspec.com/LearnMore/Semiconductors/Discrete/Thyristors/Quadracs
sameAs	Quadrac Quadrac Quadrac Quadrac
dbp:wikiPageUsesTemplate	dbt:No_footnotes dbt:Sources
has abstract	A QUADRAC is a special type of thyristor which combines a DIAC and a TRIAC in a single package. The DIAC is the triggering device for the TRIAC. Thyristors are four-layer (PNPN) semiconductor devices that act as switches, rectifiers or voltage regulators in a variety of applications. When triggered, thyristors turn on and become low-resistance current paths. They remain so even after the trigger is removed, and until the current is reduced to a certain level (or until they are triggered off). Diacs are bi-directional diodes that switch AC voltages and trigger triacs or silicon-controlled rectifiers (SCRs). Except for a small leakage current, diacs do not conduct until the breakover voltage is reached. Triacs are three-terminal, silicon devices that function as two SCRs configured in an inverse, parallel arrangement. They provide load current during both halves of the AC supply voltage. By combining the functions of diacs and triacs, QUADRACs eliminate the need to buy and assemble discrete parts. QUADRACs are used in lighting control, speed control, and temperature modulation control applications. They carry performance specifications such as peak repetitive off voltage, peak repetitive reverse voltage, root mean square (RMS) on-state current, and temperature junction. Peak repetitive off voltage is the maximum, instantaneous value of the off-state voltage that occurs across a thyristor, including all repetitive transient voltages and excluding all non-transient voltages. Peak repetitive reverse voltage is the maximum peak reverse voltage that may be applied continuously to the main terminals (anode and cathode) of QUADRACs. RMS on-state current is the maximum RMS current allowed for the specified use-case temperature. Temperature junction for QUADRACs is expressed as a full-required range. (en)
gold:hypernym	Type
prov:wasDerivedFrom	wikipedia-en:Quadrac?oldid=1053079989&ns=0
page length (characters) of wiki page	3168 (xsd:nonNegativeInteger)
foaf:isPrimaryTopicOf	wikipedia-en:Quadrac
is Link from a Wikipage to another Wikipage of	Electrical ballast DIAC TRIAC Thyristor
is foaf:primaryTopic of	wikipedia-en:Quadrac

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