Diacs and Sidacs are bidirectional semiconductor devices used primarily in AC switching and triggering applications. Diacs, or Diode Alternating Current Switches, serve as trigger devices for triacs, allowing for smooth operation in dimmer switches and motor speed controls. Sidacs, or Silicon Diodes for Alternating Current, function similarly but offer a higher voltage breakdown, making them suitable for more demanding applications.
These components are essential in ensuring precise control and reliable performance in various electronic circuits. Renowned manufacturers like Littelfuse and STMicroelectronics produce Diacs and Sidacs with high-quality standards and excellent performance characteristics.
Incorporating Diacs and Sidacs into your designs enhances the efficiency and reliability of your AC control applications, providing essential functionality for phase control, light dimming, and motor control systems.
Select | Images | Part Number | Mfr | Description | Datasheet | Availability | Price | Qty | RFQ | Rohs | ECAD Model |
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Mfr. Part No. WS Part No. |
DIAC 30-34V 2A MINIMELF
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88,080 pieces In Stock |
MOQ:370 |
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Mfr. Part No. WS Part No. |
silicon bilateral voltage triggered switch | SIDAC 140-170V 1A DO15
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5,000 pieces In Stock |
MOQ:190 |
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Mfr. Part No. WS Part No. |
DIAC 30-34V 2A DO35
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5,000 pieces In Stock |
MOQ:850 |
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Mfr. Part No. WS Part No. |
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8,018 pieces In Stock |
MOQ:525 |
Need to verify |
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Mfr. Part No. WS Part No. |
DIAC 28-36V 2A DO35
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256,000 pieces In Stock |
MOQ:3820 |
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Mfr. Part No. WS Part No. |
DIAC 28-36V 2A MINIMELF
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284,069 pieces In Stock |
MOQ:450 |
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Mfr. Part No. WS Part No. |
SIDAC 7-9V 1A TO92
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13,739 pieces In Stock |
MOQ:40 |
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Mfr. Part No. WS Part No. |
BATTRAX PROTECT SNGL 500A DO-214 /
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319 pieces In Stock |
MOQ:180 |
Need to verify |
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Mfr. Part No. WS Part No. |
silicon bilateral voltage triggered switch | SIDAC 240-280V 1A DO15
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390 pieces In Stock |
MOQ:180 |
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Mfr. Part No. WS Part No. |
SIDAC UNI 240-260V 1A DO-15
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Low Stock |
MOQ:180 |
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Mfr. Part No. WS Part No. |
DIAC 28-36V 2A DO35
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Low Stock |
MOQ:175 |
Need to verify |
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Mfr. Part No. WS Part No. |
silicon bilateral voltage triggered switch | SIDAC 110-125V 1A DO15
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495 pieces In Stock |
MOQ:60 |
Need to verify |
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Mfr. Part No. WS Part No. |
SIDAC 240-280V 1A DO15
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Low Stock |
MOQ:180 |
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Mfr. Part No. WS Part No. |
THYRISTOR 320V 3KA TO262M-2 / 320V Off-State 3 kA Ipp TVS Thyristor TO-262M-2
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705 pieces In Stock |
MOQ:7 |
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Mfr. Part No. WS Part No. |
SIDAC 190-210V 1A UNI DO-214AC / Diac/Sidac Thyristor 190 ~ 210V DO-214AC (SMA)
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99 pieces In Stock |
MOQ:85 |
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Mfr. Part No. WS Part No. |
SIDAC 240-280V 1A DO15 / Diac/Sidac Thyristor 240 ~ 280V DO-15
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Low Stock |
MOQ:35 |
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Mfr. Part No. WS Part No. |
THYRISTOR 190V/380V 400A 6SMD GW / 190V, 380V Off-State 400 A Ipp TVS Thyristor 6-SMD, Gull Wing
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Low Stock |
MOQ:14 |
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Mfr. Part No. WS Part No. |
SIDACTOR SLIC 4CHP 500A MS013 /
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Low Stock |
MOQ:12 |
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Mfr. Part No. WS Part No. |
SIDAC 120-138V 1A TO92 / Diac/Sidac Thyristor 120 ~ 138V TO-92
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Low Stock |
MOQ:75 |
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Mfr. Part No. WS Part No. |
SIDAC 79-97V 1A TO92 / Diac/Sidac Thyristor 79 ~ 97V TO-92
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Low Stock |
MOQ:115 |
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Mfr. Part No. WS Part No. |
SIDAC MP 240-265V H.V. DO15 TR / Diac/Sidac Thyristor 240 ~ 265V DO-15
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Low Stock |
MOQ:40 |
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Mfr. Part No. WS Part No. |
THYRISTOR 270V/400V 400A 6SMD GW / 270V, 400V Off-State 400 A Ipp TVS Thyristor 6-SMD, Gull Wing
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Low Stock |
MOQ:7 |
Need to verify |
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Mfr. Part No. WS Part No. |
SIDAC 130-146V 1A DO214
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Low Stock |
MOQ:70 |
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Mfr. Part No. WS Part No. |
SIDAC 190-215V 1A TO92
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Low Stock |
MOQ:21 |
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Mfr. Part No. WS Part No. |
SIDAC 110-125V 1A DO214
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15,600 pieces In Stock |
MOQ:75 |
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Mfr. Part No. WS Part No. |
SIDAC 110-130V 900MA AXIAL / Diac/Sidac Thyristor 110 ~ 130V Axial
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Low Stock |
MOQ:190 |
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Mfr. Part No. WS Part No. |
DIAC-TRIGGER DIODE, 400MW, 36V V / Diac/Sidac Thyristor 28 ~ 36V SOD-123
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18,600 pieces In Stock |
MOQ:1310 |
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Mfr. Part No. WS Part No. |
SIDACTOR G.FAST 8V 30A SOT23-6 /
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777 pieces In Stock |
MOQ:65 |
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Mfr. Part No. WS Part No. |
IC LIGHT IGNITION CIRCUIT I-PAK / Diac/Sidac Thyristor 215 ~ 255V I-PAK
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2,400 pieces In Stock |
MOQ:35 |
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Mfr. Part No. WS Part No. |
SIDAC MP 220-250V H.V. DO15 / Diac/Sidac Thyristor 220 ~ 250V DO-15
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45,000 pieces In Stock |
MOQ:75 |
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Mfr. Part No. WS Part No. |
SIDAC 110-125V 1A DO15 / Diac/Sidac Thyristor 110 ~ 125V DO-15
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Low Stock |
MOQ:70 |
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Mfr. Part No. WS Part No. |
SIDAC 142-157V 1A UNI DO-214AC
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Low Stock |
MOQ:120 |
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Mfr. Part No. WS Part No. |
SIDAC 220-250V 1A AXIAL
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3,770 pieces In Stock |
MOQ:65 |
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Mfr. Part No. WS Part No. |
SIDAC UNI 240-260V 1A DO214AC / Diac/Sidac Thyristor 240 ~ 260V DO-214AC (SMA)
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338 pieces In Stock 23 pieces Factory Stock |
MOQ:45 |
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Mfr. Part No. WS Part No. |
SIDAC 205-230V 1A DO15 / Diac/Sidac Thyristor 205 ~ 230V DO-15
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55,000 pieces In Stock |
MOQ:425 |
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Mfr. Part No. WS Part No. |
SIDAC 140-170V 1A DO15
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13,000 pieces In Stock |
MOQ:245 |
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Mfr. Part No. WS Part No. |
SIDAC 205-230V 1A DO214
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60,000 pieces In Stock |
MOQ:45 |
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Mfr. Part No. WS Part No. |
SIDAC 220-250V 1A DO214
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2,773 pieces In Stock |
MOQ:40 |
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Mfr. Part No. WS Part No. |
DIAC-TRIGGER DIODE, 400MW, 34V V
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2,800 pieces In Stock |
MOQ:230 |
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Mfr. Part No. WS Part No. |
SIDAC 104-118V 1A TO92
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200 pieces In Stock |
MOQ:75 |
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Mfr. Part No. WS Part No. |
SIDAC 95-110V 1A UNI DO-15
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Low Stock |
MOQ:75 |
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Mfr. Part No. WS Part No. |
DIAC 28-36V 1A SOT23-3
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130,000 pieces In Stock |
MOQ:310 |
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Mfr. Part No. WS Part No. |
SIDAC 104-118V 1A DO214
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1,446 pieces In Stock |
MOQ:75 |
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Mfr. Part No. WS Part No. |
SIDAC 104-118V 1A UNI DO-15
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Low Stock |
MOQ:75 |
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Mfr. Part No. WS Part No. |
SIDAC 190-210V 1A UNI DO-15
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Low Stock |
MOQ:65 |
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Mfr. Part No. WS Part No. |
SIDAC 130-146V 1A UNI DO-15
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Low Stock |
MOQ:75 |
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Mfr. Part No. WS Part No. |
SIDAC 110-125V 1A UNI DO-15
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Low Stock |
MOQ:75 |
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Mfr. Part No. WS Part No. |
silicon bilateral voltage triggered switch | SIDAC 205-230V 1A TO92
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Low Stock |
MOQ:90 |
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Mfr. Part No. WS Part No. |
Sidac High Voltage | SIDAC 120-140V 900MA AXIAL
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Low Stock |
MOQ:220 |
Need to verify |
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Mfr. Part No. WS Part No. |
silicon bilateral voltage triggered switch | SIDAC 104-118V 1A DO15
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Low Stock |
MOQ:70 |
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