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. TerminalsOn the TRIAC symbol there are three terminals. These terminals are,MT1 Anode 1 (Main Terminal 1)MT2 Anode 2 (Main Terminal 2)Gate TerminalApplicationsTRIACs 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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Beskrivning Pris 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-artikelnummer 714-2678
Tillv. art.nrZ0405NF 1AA2
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4A Through Hole TO-202 5mA 800V 21A 3 1.3V 800V 5mA 10.1 x 4.5 x 7.3mm 10.1mm 4.5mm 7.3mm
RS-artikelnummer 177-5199
Tillv. art.nr2N6073BG
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4A Through Hole TO-225 20mA 400V 30A 3 2.5V 400V 30mA 7.74 x 2.66 x 11.04mm 7.74mm 2.66mm 11.04mm
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Tillv. art.nrBTA12-600SWRG
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12A Through Hole TO-220AB 10mA 800V 126A 3 1.3V 600V 15mA 10.4 x 4.6 x 15.9mm 10.4mm 4.6mm 15.9mm
RS-artikelnummer 165-7490
Tillv. art.nrT1235-600G-TR
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12A Surface Mount D2PAK (TO-263) 35mA 600V - 3 1V - 35mA 10.28 x 9.35 x 4.6mm 10.28mm 9.35mm 4.6mm
RS-artikelnummer 169-7194
Tillv. art.nrMAC97A8
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0.6A Through Hole TO-92 7mA 600V 8.8A 3 2V 600V 10mA 4.2 x 4.8 x 5.2mm 4.2mm 4.8mm 5.2mm
RS-artikelnummer 714-0512
Tillv. art.nrBTB24-600BWRG
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25A Through Hole TO-220AB 50mA 600V 260A 3 1.3V 600V 75mA 10.4 x 4.6 x 9.15mm 10.4mm 4.6mm 9.15mm
RS-artikelnummer 810-7332
Tillv. art.nrBTA12-600BRG
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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-artikelnummer 103-5705
Tillv. art.nrBT139-800
6,928 kr
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16A Through Hole TO-220AB 70mA 800V 170A 3 1.5V 800V 45mA 10.3 x 4.7 x 9.4mm 10.3mm 4.7mm 9.4mm
RS-artikelnummer 168-7877
Tillv. art.nrBTA12-600BRG
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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-artikelnummer 727-1139
Tillv. art.nrBT139-600E,127
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16A Through Hole TO-220AB 25mA 600V 170A 3 1.5V 600V 45mA 10.3 x 4.7 x 9.4mm 10.3mm 4.7mm 9.4mm
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Tillv. art.nrT435-600B
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4A Surface Mount DPAK (TO-252) 35mA 600V 31A 3 1.3V - 35mA 6.6 x 6.2 x 2.4mm 6.6mm 6.2mm 2.4mm
RS-artikelnummer 102-3584
Tillv. art.nrBTA12-600BWRG
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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
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Tillv. art.nrBTA25-600B
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25A Panel Mount RD-91 100mA 800V 260A 3 1.3V 600V 80mA 40 x 27 x 14mm 40mm 27mm 14mm
RS-artikelnummer 177-5198
Tillv. art.nr2N6075AG
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4A Through Hole TO-225 10mA 600V 30A 3 2.5V 600V 15mA 7.74 x 2.66 x 11.04mm 7.74mm 2.66mm 11.04mm
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Tillv. art.nrT435-600B
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4A Surface Mount DPAK (TO-252) 35mA 600V 31A 3 1.3V - 35mA 6.6 x 6.2 x 2.4mm 6.6mm 6.2mm 2.4mm
RS-artikelnummer 145-8661
Tillv. art.nrBTA12-800BWRG
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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
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4A Through Hole TO-220ABFP 10mA 800V 32A 3 1V 800V 20mA 10.4 x 4.6 x 16.4mm 10.4mm 4.6mm 16.4mm
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6A Through Hole TO-220AB 50mA 600V 63A 3 1.3V 600V 50mA 10.4 x 4.6 x 9.15mm 10.4mm 4.6mm 9.15mm
RS-artikelnummer 878-1760
Tillv. art.nrL6004L3
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4A Through Hole TO-220 3mA 600V 40A 3 1.3V - 5mA 10.67 x 4.78 x 15.75mm 10.67mm 4.78mm 15.75mm
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40A Panel Mount RD-91 100mA 600V 420A 3 1.3V 600V 80mA 40 x 27 x 14mm 40mm 27mm 14mm
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