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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Description 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庫存編號 123-1472
製造零件編號FT0407MH TU
HK$2.988
/個 (每包:20個)
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4A Through Hole TO-220AB 5mA 600V - 3 1.3V 600V 15mA 10.36 x 4.67 x 15.35mm 10.36mm 4.67mm 15.35mm
RS庫存編號 177-5221
製造零件編號MAC4DCNT4G
BrandLittelfuse
HK$5.819
個 (在毎卷:2500)
單位
4A Surface Mount DPAK (TO-252) 35mA 800V 40A 3 1.3V 800V 35mA 6.73 x 6.22 x 2.38mm 6.73mm 6.22mm 2.38mm
RS庫存編號 177-5177
製造零件編號MAC12MG
BrandLittelfuse
HK$6.863
毎管:50 個
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12A Through Hole TO-220AB 35mA 600V 100A 3 1.5V 600V 40mA 10.28 x 4.82 x 15.75mm 10.28mm 4.82mm 15.75mm
RS庫存編號 168-6241
製造零件編號Z00607MA 1BA2
HK$1.254
個 (以毎袋:2500)
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0.8A Through Hole TO-92 7mA 600V 9.5A 3 1.3V 600V 5mA 4.7 x 3.7 x 4.4mm 4.7mm 3.7mm 4.4mm
RS庫存編號 714-2628
製造零件編號BTB08-600BWRG
HK$10.986
/個 (每包:5個)
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8A Through Hole TO-220AB 50mA 600V 84A 3 1.3V 600V 50mA 10.4 x 4.6 x 9.15mm 10.4mm 4.6mm 9.15mm
RS庫存編號 168-6652
製造零件編號T1250-600G-TR
HK$4.807
個 (在毎卷:1000)
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12A Surface Mount D2PAK (TO-263) 50mA 600V 126A 3 1.3V 600V 50mA 10.28 x 9.35 x 4.6mm 10.28mm 9.35mm 4.6mm
RS庫存編號 127-0654
製造零件編號BTA40-600B
HK$69.19
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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
RS庫存編號 124-2292
製造零件編號BT136-600D,127
HK$4.155
毎管:50 個
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4A Through Hole TO-220AB 10mA 600V 27A 3 1.5V 600V 10mA 10.3 x 4.7 x 9.4mm 10.3mm 4.7mm 9.4mm
RS庫存編號 170-2412
製造零件編號FT2514MH TU
HK$6.61
毎管:50 個
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25A Through Hole TO-220AB 35mA 600V - 3 1.3V 600V 35mA 10.36 x 4.67 x 15.35mm 10.36mm 4.67mm 15.35mm
RS庫存編號 486-5205
製造零件編號Z0107MN 5AA4
HK$5.448
/個 (每包:5個)
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1A Surface Mount SOT-223 7mA 600V 8.5A 3+Tab 1.3V 600V 10mA 6.5 x 3.5 x 1.8mm 6.5mm 3.5mm 1.8mm
RS庫存編號 484-2814
製造零件編號BT139-800
HK$7.722
/個 (每包:5個)
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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庫存編號 178-1398
製造零件編號BTA26-800BRG
HK$33.628
毎管:30 個
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25A Through Hole TOP3 100mA 800V 260A 3 1.3V 800V 80mA 15.5 x 4.6 x 21.1mm 15.5mm 4.6mm 21.1mm
RS庫存編號 800-9768
製造零件編號BTB16-800CW3G
BrandLittelfuse
HK$8.889
/個 (每包:10個)
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16A Through Hole TO-220 35mA 800V 170A 3 1.7V 800V 50mA 10.28 x 4.82 x 15.75mm 10.28mm 4.82mm 15.75mm
RS庫存編號 168-9403
製造零件編號BT139X-600,127
HK$6.341
毎管:50 個
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16A Through Hole TO-220F 70mA 600V 170A 3 1.5V 600V 45mA 10.3 x 4.6 x 9.3mm 10.3mm 4.6mm 9.3mm
RS庫存編號 198-4319
製造零件編號BTA140-800,127
HK$12.15
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25A Through Hole TO-220AB 70mA 800V 209A 3 1.5V 800V 30mA 10.3 x 4.7 x 9.4mm 10.3mm 4.7mm 9.4mm
RS庫存編號 145-9186
製造零件編號BTB16-600CWRG
HK$12.162
毎管:50 個
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16A Through Hole TO-220AB 35mA 600V 168A 3 1.3V 600V 35mA 10.4 x 4.6 x 9.3mm 10.4mm 4.6mm 9.3mm
RS庫存編號 171-9494
製造零件編號Q4004L3TP
BrandLittelfuse
HK$8.09
毎管:500 個
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4A Through Hole TO-220AB 10mA 400V 55A 3 1.3V - 20mA 10.67 x 4.78 x 15.75mm 10.67mm 4.78mm 15.75mm
RS庫存編號 163-9822
製造零件編號T3050H-6G-TR
HK$21.384
/個 (每包:5個)
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30A Surface Mount D2PAK 50mA 600V 284A 2 + Tab 1V - 75mA 10.28 x 9.35 x 4.6mm 10.28mm 9.35mm 4.6mm
RS庫存編號 687-0925
製造零件編號T435-600B-TR
HK$6.125
/個 (每包:10個)
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4A Surface Mount DPAK (TO-252) 35mA 600V 31A 3 1.3V 600V 35mA 6.6 x 6.2 x 2.4mm 6.6mm 6.2mm 2.4mm
RS庫存編號 687-1047
製造零件編號BTA16-600CWRG
HK$15.426
/個 (每包:5個)
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16A Through Hole TO-220AB 35mA 600V 168A 3 1.3V 600V 35mA 10.4 x 4.6 x 9.3mm 10.4mm 4.6mm 9.3mm