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. 829-4014
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.BTA25-600B
THB184.21
Each: (In a Pack of 2)
Units
25A Panel Mount RD-91 100mA 800V 260A 3 1.3V 600V 80mA 40 x 27 x 14mm 40mm 27mm 14mm
RS Stock No. 178-1386
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.BTA25-600B
THB189.53
Each (In a Bag of 25)
Units
25A Panel Mount RD-91 100mA 800V 260A 3 1.3V 600V 80mA 40 x 27 x 14mm 40mm 27mm 14mm
RS Stock No. 687-0987
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.TPDV1240RG
THB344.99
Each
Units
40A Through Hole TOP3 200mA 1200V 590A 3 1.5V 1200V - 15.5 x 4.6 x 12.85mm 15.5mm 4.6mm 12.85mm
RS Stock No. 168-6659
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.TPDV1240RG
THB297.14
Each (In a Tube of 30)
Units
40A Through Hole TOP3 200mA 1200V 590A 3 1.5V 1200V - 15.5 x 4.6 x 12.85mm 15.5mm 4.6mm 12.85mm
RS Stock No. 127-0654
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.BTA40-600B
THB254.35
Each
Units
40A Panel Mount RD-91 100mA 600V 420A 3 1.3V 600V 80mA 40 x 27 x 14mm 40mm 27mm 14mm
RS Stock No. 168-6676
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.T435-800T
THB18.72
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Units
4A Through Hole TO-220AB 35mA 800V 31A 3 1.3V 800V 35mA 10.4 x 4.6 x 9.15mm 10.4mm 4.6mm 9.15mm
RS Stock No. 102-3531
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.BTA40-600B
THB226.10
Each (In a Bag of 25)
Units
40A Panel Mount RD-91 100mA 600V 420A 3 1.3V 600V 80mA 40 x 27 x 14mm 40mm 27mm 14mm
RS Stock No. 687-1066
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.T435-800T
THB35.15
Each: (In a Pack of 5)
Units
4A Through Hole TO-220AB 35mA 800V 31A 3 1.3V 800V 35mA 10.4 x 4.6 x 9.15mm 10.4mm 4.6mm 9.15mm
RS Stock No. 166-1234
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.BT131-800
THB4.499
Each (On a Reel of 5000)
Units
1A Through Hole SPT 7mA 800V 13.8A 3 1.5V 800V 5mA 4.8 x 4.2 x 5.2mm 4.8mm 4.2mm 5.2mm
RS Stock No. 508-630
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.BT131-800
THB8.262
Each: (In a Pack of 20)
Units
1A Through Hole SPT 7mA 800V 13.8A 3 1.5V 800V 5mA 4.8 x 4.2 x 5.2mm 4.8mm 4.2mm 5.2mm
RS Stock No. 169-0637
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.BT136-600E,127
THB14.00
Each (In a Tube of 50)
Units
4A Through Hole TO-220AB 25mA 600V 27A 3 1.5V 600V 15mA 10.3 x 4.7 x 9.4mm 10.3mm 4.7mm 9.4mm
RS Stock No. 727-1120
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.BT136-600E,127
THB15.74
Each: (In a Pack of 10)
Units
4A Through Hole TO-220AB 25mA 600V 27A 3 1.5V 600V 15mA 10.3 x 4.7 x 9.4mm 10.3mm 4.7mm 9.4mm
RS Stock No. 829-0481
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.BTB24-600BRG
THB30.448
Each: (In a Pack of 5)
Units
25A Through Hole TO-220AB 100mA 800V 260A 3 1.3V 600V 80mA 10.4 x 4.6 x 15.9mm 10.4mm 4.6mm 15.9mm
RS Stock No. 687-1081
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.ACS108-6SN-TR
THB37.971
Each: (In a Pack of 10)
Units
- Surface Mount SOT-223 - - - 3+Tab - - - 6.7 x 3.7 x 1.7mm 6.7mm 3.7mm 1.7mm
RS Stock No. 178-5060
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.ACS108-6SN-TR
THB19.932
Each (On a Reel of 1000)
Units
- Surface Mount SOT-223 - - - 3+Tab - - - 6.7 x 3.7 x 1.7mm 6.7mm 3.7mm 1.7mm
RS Stock No. 145-9251
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.BTB24-600BRG
THB31.46
Each (In a Tube of 50)
Units
25A Through Hole TO-220AB 100mA 800V 260A 3 1.3V 600V 80mA 10.4 x 4.6 x 15.9mm 10.4mm 4.6mm 15.9mm
RS Stock No. 169-3287
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.BTA40-700B
THB287.64
Each
Units
40A Panel Mount RD-91 100mA 700V 315A 3 1.5V 700V 80mA 40 x 27 x 14mm 40mm 27mm 14mm
RS Stock No. 168-6661
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.TPDV840RG
THB216.50
Each (In a Tube of 30)
Units
40A Through Hole TOP3 200mA 800V 590A 3 1.5V 800V - 15.5 x 4.6 x 12.85mm 15.5mm 4.6mm 12.85mm
RS Stock No. 146-0359
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.BT134-600D,127
THB9.10
Each (In a Tube of 50)
Units
4A Through Hole SIP 10mA 600V 27A 3 1.5V 600V 10mA 7.8 x 2.8 x 11.1mm 7.8mm 2.8mm 11.1mm
RS Stock No. 102-4086
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.BTA40-800B
THB251.795
Each (In a Bag of 25)
Units
40A Panel Mount RD-91 100mA 800V 420A 3 1.3V 800V 80mA 40 x 27 x 14mm 40mm 27mm 14mm
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