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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รายละเอียดสินค้า / Description ราคา / Price Maximum Breakover Voltage Peak On-State Voltage Maximum Holding Current Surge Current Rating Repetitive Peak Reverse Voltage Repetitive Peak Forward Blocking Voltage Mounting Type Package Type Pin Count Repetitive Peak Off-State Current Dimensions Length Width Height
RS Stock No. 878-1892
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.K2400E70
Brand :Littelfuse
THB32.333
Each: (In a Pack of 50)
Units
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 Stock No. 738-3208
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.P0080SAMCLRP
Brand :Littelfuse
THB25.662
Each: (In a Pack of 10)
Units
- 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 Stock No. 165-9870
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.K2401GRP
Brand :Littelfuse
THB32.479
Each (On a Reel of 5000)
Units
250V - 160mA 20A 190V 190V Through Hole DO-15 2 5µA 3.556 (Dia.) x 6.858mm 6.86mm 3.556 (Dia.)mm -
RS Stock No. 738-3258
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.P0300SCLRP
Brand :Littelfuse
THB39.228
Each: (In a Pack of 10)
Units
- 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 Stock No. 793-1885
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.K2401GRP
Brand :Littelfuse
THB51.664
Each: (In a Pack of 5)
Units
250V - 160mA 20A 190V 190V Through Hole DO-15 2 5µA 3.556 (Dia.) x 6.858mm 6.86mm 3.556 (Dia.)mm -
RS Stock No. 738-3242
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.P0300SAMCLRP
Brand :Littelfuse
THB25.451
Each: (In a Pack of 10)
Units
- 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 Stock No. 878-1889
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.K2400G
Brand :Littelfuse
THB25,088.26
1 Pack of 1000
Pack(s)
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 Stock No. 738-3214
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.P0080SCLRP
Brand :Littelfuse
THB32.704
Each: (In a Pack of 10)
Units
- 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 Stock No. 738-3248
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.P3100SBLRP
Brand :Littelfuse
THB47.588
Each: (In a Pack of 10)
Units
- 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 Stock No. 878-1886
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.K1200G
Brand :Littelfuse
THB26,570.90
1 Pack of 1000
Pack(s)
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 Stock No. 738-3239
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.P3100SCLRP
Brand :Littelfuse
THB46.428
Each: (In a Pack of 10)
Units
- 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 Stock No. 878-1883
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.K1200E70
Brand :Littelfuse
THB38,122.02
1 Pack of 2000
Pack(s)
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
RS Stock No. 738-3210
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.P0080SCMCLRP
Brand :Littelfuse
THB49.852
Each: (In a Pack of 10)
Units
- 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 Stock No. 738-3254
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.P0300SCMCLRP
Brand :Littelfuse
THB48.212
Each: (In a Pack of 10)
Units
- 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 Stock No. 738-3220
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.P3100SALRP
Brand :Littelfuse
THB20.27
Each: (In a Pack of 10)
Units
- 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 Stock No. 738-3217
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.P0080SALRP
Brand :Littelfuse
THB20.905
Each: (In a Pack of 10)
Units
- 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
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