TRIACs

A TRIAC (triode for alternating current) is a silicone semiconductor component with three terminals or legs that allow current to flow in either direction when triggered. TRIACs are a development of a similar family member the thyristor. However, unlike the thyristor which is unidirectional the TRIAC is able to control current over both halves of the sine wave making TRIACs bidirectional.
How does it work?
In basic terms a TRIAC is a low power to medium power semi-latching solid state switch. The device acts like two standard thyristors inversely connected in parallel or back to back. To activate the component a voltage needs to be applied to the gate terminal. Once the gate current is triggered a TRIAC will continue to conduct even if the supply to the gate is removed.
A TRIAC is a 4 layer silicone component that is PNPN in the positive direction and NPNP in the negative direction. The devices come in panel mount, surface mount and through hole mounting options in various package types to suit a wide variety electronics applications and circuits.
Terminals
On the TRIAC symbol there are three terminals. These terminals are,
MT1 Anode 1 (Main Terminal 1)
MT2 Anode 2 (Main Terminal 2)
Gate Terminal
Applications
TRIACs are widely used for switching and power control of AC systems. TRIACS are particularly useful in applications such as lighting dimmers as they enable the utilisation of each half-cycle of the AC wave. The solid state device can be used in a circuit as a simple on off device in a wide range of electronic applications. Some of the more common areas are,
• Temperature control
• Liquid level control
• Dimmers for domestic lighting
• Small motor control
• Speed control for electric fans

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รายละเอียดสินค้า / Description ราคา / Price Rated Average On-State Current Mounting Type Package Type Maximum Gate Trigger Current Repetitive Peak Reverse Voltage Surge Current Rating Pin Count Maximum Gate Trigger Voltage Repetitive Peak Forward Blocking Voltage Maximum Holding Current Dimensions Length Width Height
RS Stock No. 168-7877
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.BTA12-600BRG
THB43.279
Each (In a Tube of 50)
Units
12A Through Hole TO-220AB 50 mA, 100 mA 600V 126A 3 1.3V 600V 50mA 10.4 x 4.6 x 15.9mm 10.4mm 4.6mm 15.9mm
RS Stock No. 714-2580
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.BTA12-700BRG
THB56.07
Each: (In a Pack of 5)
Units
12A Through Hole TO-220AB 100mA 700V 125A 3 1.5V 700V 50mA - - - -
RS Stock No. 102-4082
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.BTA12-700BRG
THB49.99
Each (In a Tube of 50)
Units
12A Through Hole TO-220AB 100mA 700V 125A 3 1.5V 700V 50mA - - - -
RS Stock No. 878-1915
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.QK016LH6
Brand :Littelfuse
THB61.876
Each: (In a Pack of 500)
Units
16A Through Hole TO-220 80mA 1000V 200A 3 1.3V - 70mA 10.67 x 4.78 x 15.75mm 10.67mm 4.78mm 15.75mm
RS Stock No. 145-8613
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.BTA26-600BRG
THB105.05
Each (In a Tube of 30)
Units
25A Through Hole TOP3 100mA 600V 260A 3 1.3V 600V 80mA 15.5 x 4.6 x 12.85mm 15.5mm 4.6mm 12.85mm
RS Stock No. 878-1902
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.QK016LH3
Brand :Littelfuse
THB110.19
Each
Units
16A Through Hole TO-220 20mA 1000V 200A 3 1.3V - 35mA 10.67 x 4.78 x 15.75mm 10.67mm 4.78mm 15.75mm
RS Stock No. 484-2763
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.BT137-600,127
THB20.624
Each: (In a Pack of 5)
Units
8A Through Hole TO-220AB 70mA 600V 71A 3 1.5V 600V 20mA 10.3 x 4.7 x 9.4mm 10.3mm 4.7mm 9.4mm
RS Stock No. 657-1867
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.BT137X-800
THB19.044
Each: (In a Pack of 5)
Units
8A Through Hole TO-220F 70mA 800V 71A 3 1.5V 800V 20mA 10.3 x 4.6 x 9.3mm 10.3mm 4.6mm 9.3mm
RS Stock No. 877-2652
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.BTB41-600BRG
THB241.894
Each: (In a Pack of 5)
Units
40A Through Hole TOP3 100mA 600V 420A 3 1.3V 600V 80mA 15.5 x 4.6 x 21.1mm 15.5mm 4.6mm 21.1mm
RS Stock No. 687-0912
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.T1235-800G-TR
THB47.735
Each: (In a Pack of 2)
Units
12A Surface Mount D2PAK (TO-263) 35mA 800V 126A 3 1.3V 800V 35mA 10.28 x 9.35 x 4.6mm 10.28mm 9.35mm 4.6mm
RS Stock No. 177-5211
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.MAC15A8G
Brand :Littelfuse
THB28.967
Each (In a Box of 500)
Units
15A Through Hole TO-220AB 75mA 600V 150A 3 2.5V 600V 40mA 10.28 x 4.82 x 15.75mm 10.28mm 4.82mm 15.75mm
RS Stock No. 727-1136
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.BT138-600E,127
THB28.846
Each: (In a Pack of 5)
Units
12A Through Hole TO-220AB 25mA 600V 105A 3 1.5V 600V 30mA 10.3 x 4.7 x 9.4mm 10.3mm 4.7mm 9.4mm
RS Stock No. 168-6668
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.BTA24-600BWRG
THB67.003
Each (In a Tube of 50)
Units
25A Through Hole TO-220AB 50mA 600V 260A 3 1.3V 600V 75mA 10.4 x 4.6 x 9.3mm 10.4mm 4.6mm 9.3mm
RS Stock No. 829-2715
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.BTA10-600CRG
THB42.071
Each: (In a Pack of 10)
Units
10A Through Hole TO-220AB 50mA 800V 105A 3 1.3V 600V 25mA 10.4 x 4.6 x 15.9mm 10.4mm 4.6mm 15.9mm
RS Stock No. 168-6648
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.T1235-800G-TR
THB21.736
Each (On a Reel of 1000)
Units
12A Surface Mount D2PAK (TO-263) 35mA 800V 126A 3 1.3V 800V 35mA 10.28 x 9.35 x 4.6mm 10.28mm 9.35mm 4.6mm
RS Stock No. 687-1079
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.ACS120-7SB-TR
THB30.314
Each: (In a Pack of 5)
Units
- Surface Mount DPAK (TO-252) - - - 3 - - - 6.6 x 6.2 x 2.4mm 6.6mm 6.2mm 2.4mm
RS Stock No. 168-6678
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.ACS120-7SB-TR
THB13.168
Each (On a Reel of 2500)
Units
- Surface Mount DPAK (TO-252) - - - 3 - - - 6.6 x 6.2 x 2.4mm 6.6mm 6.2mm 2.4mm
RS Stock No. 102-3527
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.BTA24-600CWRG
THB65.131
Each (In a Tube of 50)
Units
25A Through Hole TO-220AB 35mA 600V 260A 3 1.3V 600V 50mA 10.4 x 4.6 x 9.3mm 10.4mm 4.6mm 9.3mm
RS Stock No. 102-3584
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.BTA12-600BWRG
THB40.769
Each (In a Tube of 50)
Units
12A Through Hole TO-220AB 50mA 800V 126A 3 1.3V 600V 50mA 10.4 x 4.6 x 15.9mm 10.4mm 4.6mm 15.9mm
RS Stock No. 816-7820
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.BT139-800E
THB32.03
Each: (In a Pack of 10)
Units
20A Through Hole TO-220AB 25mA 800V 170A 3 1V 800V 45mA 10.3 x 4.7 x 16mm 10.3mm 4.7mm 16mm
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