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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Description 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庫存編號 738-3239
製造零件編號P3100SCLRP
BrandLittelfuse
TWD41.00
/個 (每包:10個)
單位
- 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庫存編號 738-3217
製造零件編號P0080SALRP
BrandLittelfuse
TWD23.80
/個 (每包:10個)
單位
- 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庫存編號 793-1885
製造零件編號K2401GRP
BrandLittelfuse
TWD45.00
/個 (每包:5個)
單位
250V - 160mA 20A 190V 190V Through Hole DO-15 2 5µA 3.556 (Dia.) x 6.858mm 6.86mm 3.556 (Dia.)mm -
RS庫存編號 738-3258
製造零件編號P0300SCLRP
BrandLittelfuse
TWD40.60
/個 (每包:10個)
單位
- 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庫存編號 878-1886
製造零件編號K1200G
BrandLittelfuse
TWD20,197.00
1 包 1000 套
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庫存編號 878-1883
製造零件編號K1200E70
BrandLittelfuse
TWD25,760.00
1 包 2000 套
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庫存編號 878-1889
製造零件編號K2400G
BrandLittelfuse
TWD26,360.00
1 包 1000 套
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庫存編號 738-3254
製造零件編號P0300SCMCLRP
BrandLittelfuse
TWD41.00
/個 (每包:10個)
單位
- 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庫存編號 738-3248
製造零件編號P3100SBLRP
BrandLittelfuse
TWD37.00
/個 (每包:10個)
單位
- 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庫存編號 878-1892
製造零件編號K2400E70
BrandLittelfuse
TWD26.30
/個 (每包:50個)
單位
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庫存編號 738-3208
製造零件編號P0080SAMCLRP
BrandLittelfuse
TWD23.60
/個 (每包:10個)
單位
- 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庫存編號 165-9870
製造零件編號K2401GRP
BrandLittelfuse
TWD25.80
個 (在毎卷:5000)
單位
250V - 160mA 20A 190V 190V Through Hole DO-15 2 5µA 3.556 (Dia.) x 6.858mm 6.86mm 3.556 (Dia.)mm -
RS庫存編號 738-3214
製造零件編號P0080SCLRP
BrandLittelfuse
TWD30.60
/個 (每包:10個)
單位
- 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庫存編號 738-3210
製造零件編號P0080SCMCLRP
BrandLittelfuse
TWD43.70
/個 (每包:10個)
單位
- 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庫存編號 738-3220
製造零件編號P3100SALRP
BrandLittelfuse
TWD17.40
/個 (每包:10個)
單位
- 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庫存編號 738-3242
製造零件編號P0300SAMCLRP
BrandLittelfuse
TWD29.30
/個 (每包:10個)
單位
- 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