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 714-2603
製造零件編號BTA40-800B
HK$79.50
單位
40A Panel Mount RD-91 100mA 800V 420A 3 1.3V 800V 80mA 40 x 27 x 14mm 40mm 27mm 14mm
RS庫存編號 177-7335
製造零件編號BTA212-600B,127
HK$7.27
單位
12A Through Hole TO-220AB 50mA 600V 105A 3 1.5V 600V 60mA 10.3 x 4.7 x 9.4mm 10.3mm 4.7mm 9.4mm
RS庫存編號 178-5154
製造零件編號T405Q-600B-TR
HK$3.18
個 (在毎卷:2500)
單位
4A Surface Mount DPAK (TO-252) 10mA 600V 38A 3 1.5V 600V 10mA 6.6 x 6.2 x 2.4mm 6.6mm 6.2mm 2.4mm
RS庫存編號 792-0734
製造零件編號BTA312-800C
HK$7.528
/個 (每包:10個)
單位
12A Through Hole TO-220AB 35mA 800V 110A 3 1.5V 800V 35mA 10.3 x 4.7 x 16mm 10.3mm 4.7mm 16 (With Tab)mm
RS庫存編號 714-2609
製造零件編號BTA26-800CWRG
HK$39.70
單位
25A Through Hole TOP3 35mA 800V 260A 3 1.3V 800V 50mA 15.5 x 4.6 x 12.85mm 15.5mm 4.6mm 12.85mm
RS庫存編號 829-3985
製造零件編號T835T-6I
HK$11.652
/個 (每包:10個)
單位
8A Through Hole TO-220AB 35mA - 63A 3 1.3V - 40mA 10.4 x 4.6 x 15.9mm 10.4mm 4.6mm 15.9mm
RS庫存編號 168-6671
製造零件編號T1635-600G
HK$16.523
毎管:50 個
單位
16A Surface Mount D2PAK (TO-263) 35mA 600V 168A 3 1.3V 600V 35mA 10.28 x 9.35 x 4.6mm 10.28mm 9.35mm 4.6mm
RS庫存編號 800-9730
製造零件編號BTA16-800BW3G
BrandLittelfuse
HK$15.012
/個 (每包:10個)
單位
16A Through Hole TO-220 50mA 800V 170A 3 1.7V 800V 60mA 10.28 x 4.82 x 15.75mm 10.28mm 4.82mm 15.75mm
RS庫存編號 124-2292
製造零件編號BT136-600D,127
HK$4.155
毎管:50 個
單位
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 792-0721
製造零件編號BTA2008W-600D
HK$2.637
/個 (每包:20個)
單位
0.8A Surface Mount SOT-223 5mA 600V 9A 3+Tab - 600V - 6.7 x 3.7 x 1.8mm 6.7mm 3.7mm 1.8mm
RS庫存編號 791-7986
製造零件編號T635T-8T
HK$8.80
/個 (每包:10個)
單位
6A Through Hole TO-220AB 35mA 800V 47A 3 1.3V 800V 40mA 10.4 x 4.6 x 15.75mm 10.4mm 4.6mm 15.75mm
RS庫存編號 145-9207
製造零件編號BTA08-600CRG
HK$11.486
毎管:50 個
單位
8A Through Hole TO-220AB 50mA - - 3 1.3V 600V 25mA 10.4 x 4.6 x 15.9mm 10.4mm 4.6mm 15.9mm
RS庫存編號 110-6576
製造零件編號ACST310-8FP
HK$6.181
/個 (每包:10個)
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3A Through Hole TO-220ABFP 10mA 800V 21A 3 1.1V 800V 20mA 10.4 x 4.6 x 16.4mm 10.4mm 4.6mm 16.4mm
RS庫存編號 124-9963
製造零件編號BTA12-600CW3G
BrandLittelfuse
HK$13.583
毎管:50 個
單位
12A Through Hole TO-220 35mA 600V 105A 3 1.7V 800V 45mA 10.28 x 4.82 x 15.75mm 10.28mm 4.82mm 15.75mm
RS庫存編號 486-3215
製造零件編號T435-600T
HK$7.80
/個 (每包:5個)
單位
4A Through Hole TO-220AB 35mA 600V 31A 3 1.3V 600V 35mA 10.4 x 4.6 x 9.15mm 10.4mm 4.6mm 9.15mm
RS庫存編號 102-3582
製造零件編號BTB10-600BWRG
HK$8.722
毎管:50 個
單位
10A Through Hole TO-220AB 50mA 600V 105A 3 1.3V 600V 50mA 10.4 x 4.6 x 9.15mm 10.4mm 4.6mm 9.15mm
RS庫存編號 800-9724
製造零件編號BTA12-600CW3G
BrandLittelfuse
HK$13.583
/個 (每包:10個)
單位
12A Through Hole TO-220 35mA 600V 105A 3 1.7V 800V 45mA 10.28 x 4.82 x 15.75mm 10.28mm 4.82mm 15.75mm
RS庫存編號 165-8513
製造零件編號BTA225-800B
HK$7.546
毎管:50 個
單位
25A Through Hole TO-220AB 50mA 800V 209A 3 1.5V 800V 60mA 10.3 x 4.5 x 15.8mm 10.3mm 4.5mm 15.8mm
RS庫存編號 687-1088
製造零件編號ACS102-6T1-TR
HK$6.912
/個 (每包:10個)
單位
- Surface Mount SOIC - - - 8 - - - 5 x 4 x 1.25mm 5mm 4mm 1.25mm
RS庫存編號 714-2653
製造零件編號T410-600B
HK$8.154
/個 (每包:10個)
單位
4A Surface Mount DPAK (TO-252) 10mA 600V 31A 3 1.3V 600V 15mA 6.6 x 6.2 x 2.4mm 6.6mm 6.2mm 2.4mm