SIDACs

A SIDAC – Silicon Diode Alternating Current – is a discrete on/off switch that is used to control the output power of an electrical circuit. 


Differences between SIDACs and DIACs


SIDACs are similar to DIACs (three-layer diodes that conduct electrical current) because their operation is nearly identical. However, a SIDAC is a five-layer device. In general, it has a higher break-over voltage and greater current handling capacities. SIDACs can be used directly for switching and not simply for triggering another switching device. They’re commonly used in:

  • High voltage lamps
  • High voltage power supplies
  • Pulse generators
  • Fluorescent lighting 

How do SIDACs work?


SIDACs are widely used with TRIACs to improve the operation of your power switching system. 


They remain in a non-conducting state until the voltage across your device rises to a level above the break-over voltage. At this point the device starts to conduct. 


The device will continue to conduct until the voltage falls below its holding current, at which point the device will return to its non-conducting state. It will then conduct again once the break-over voltage is exceeded.


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RS-artikelnummer 878-1892
Tillv. art.nrK2400E70
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7,115 kr
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250V 1.5V 150mA 20A - 190V Through Hole TO-92 3 5µA 4.73 x 3.68 x 4.98mm 4.73mm 3.68mm 4.98mm
RS-artikelnummer 738-3242
Tillv. art.nrP0300SAMCLRP
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- 4V 50mA 0.8A 25V 25V Surface Mount DO-214AA (SMB) 2 0.005mA 4.6 x 3.95 x 2.45mm 4.6mm 3.95mm 2.45mm
RS-artikelnummer 165-9870
Tillv. art.nrK2401GRP
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5,619 kr
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250V - 160mA 20A 190V 190V Through Hole DO-15 2 5µA 3.556 (Dia.) x 6.858mm 6.86mm 3.556 (Dia.)mm -
RS-artikelnummer 738-3214
Tillv. art.nrP0080SCLRP
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10,567 kr
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- 4V 50mA 0.8A 6V 6V Surface Mount DO-214AA (SMB) 2 0.005mA 4.6 x 3.95 x 2.45mm 4.6mm 3.95mm 2.45mm
RS-artikelnummer 738-3258
Tillv. art.nrP0300SCLRP
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10,464 kr
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- 4V 50mA 0.8A 25V 25V Surface Mount DO-214AA (SMB) 2 0.005mA 4.6 x 3.95 x 2.45mm 4.6mm 3.95mm 2.45mm
RS-artikelnummer 738-3217
Tillv. art.nrP0080SALRP
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8,427 kr
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- 4V 50mA 0.8A 6V 6V Surface Mount DO-214AA (SMB) 2 0.005mA 4.6 x 3.95 x 2.45mm 4.6mm 3.95mm 2.45mm
RS-artikelnummer 738-3248
Tillv. art.nrP3100SBLRP
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9,244 kr
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- 4V 150mA 0.8A 275V 275V Surface Mount DO-214AA (SMB) 2 0.005mA 4.6 x 3.95 x 2.45mm 4.6mm 3.95mm 2.45mm
RS-artikelnummer 738-3208
Tillv. art.nrP0080SAMCLRP
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9,42 kr
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- 4V 50mA 0.8A 6V 6V Surface Mount DO-214AA (SMB) 2 0.005mA 4.6 x 3.95 x 2.45mm 4.6mm 3.95mm 2.45mm
RS-artikelnummer 878-1889
Tillv. art.nrK2400G
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5 928,57 kr
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250V 1.5V 150mA 20A - 190V Through Hole DO-15 2 5µA 3.556 (Dia.) x 6.858mm 6.86mm 3.556 (Dia.)mm -
RS-artikelnummer 793-1885
Tillv. art.nrK2401GRP
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5,82 kr
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250V - 160mA 20A 190V 190V Through Hole DO-15 2 5µA 3.556 (Dia.) x 6.858mm 6.86mm 3.556 (Dia.)mm -
RS-artikelnummer 878-1886
Tillv. art.nrK1200G
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4 542,86 kr
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125V 1.5V 150mA 20A - 90V Through Hole DO-15 2 5µA 3.556 (Dia.) x 6.858mm 6.86mm 3.556 (Dia.)mm -
RS-artikelnummer 738-3254
Tillv. art.nrP0300SCMCLRP
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11,684 kr
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- 4V 50mA 0.8A 25V 25V Surface Mount DO-214AA (SMB) 2 0.005mA 4.6 x 3.95 x 2.45mm 4.6mm 3.95mm 2.45mm
RS-artikelnummer 738-3239
Tillv. art.nrP3100SCLRP
VarumärkeLittelfuse
10,567 kr
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- 4V 150mA 0.8A 275V 275V Surface Mount DO-214AA (SMB) 2 0.005mA 4.6 x 3.95 x 2.45mm 4.6mm 3.95mm 2.45mm
RS-artikelnummer 878-1883
Tillv. art.nrK1200E70
VarumärkeLittelfuse
7 526,51 kr
1 Pack of 2000
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125V 1.5V 150mA 20A - 90V Through Hole TO-92 3 5µA 4.73 x 3.68 x 4.98mm 4.73mm 3.68mm 4.98mm
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