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

...
顯示內容 隱藏內容

篩選條件

正在檢視 81 - 100,共 611 項產品
Results per page
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 180-7116
製造零件編號VO3063
BrandVishay
HK$11.196
/個 (每包:10個)
單位
- Through Hole DIP 5mA 6V 1 (Non-Reptitive)A 6 22V 600V - 9 x 6.4 x 3.5mm 9mm 6.4mm 3.5mm
RS庫存編號 862-4926
製造零件編號MAC15A8G
BrandLittelfuse
HK$11.81
/個 (每包:10個)
單位
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庫存編號 829-3985
製造零件編號T835T-6I
HK$12.247
/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 165-7489
製造零件編號T2535-600G-TR
HK$12.49
個 (在毎卷:1000)
單位
25A Surface Mount D2PAK (TO-263) 35mA 600V 260A 3 1.3V 600V 80mA 10.28 x 9.35 x 4.6mm 10.28mm 9.35mm 4.6mm
RS庫存編號 687-1029
製造零件編號BTA24-600BWRG
HK$20.57
/個 (每包:2個)
單位
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庫存編號 829-3900
製造零件編號T1650H-6T
HK$12.864
/個 (每包:5個)
單位
16A Through Hole TO-220AB 50mA 600V 168A 3 1V 600V 75mA 10.4 x 4.6 x 15.9mm 10.4mm 4.6mm 15.9mm
RS庫存編號 171-9673
製造零件編號Q4004L3TP
BrandLittelfuse
HK$13.092
/個 (每包:5個)
單位
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 485-8651
製造零件編號T835-600G
HK$13.308
/個 (每包:5個)
單位
8A Surface Mount D2PAK (TO-263) 35mA 600V 84A 3 1.3V 600V 35mA 10.28 x 9.35 x 4.6mm 10.28mm 9.35mm 4.6mm
RS庫存編號 168-6659
製造零件編號TPDV1240RG
HK$78.28
毎管:30 個
單位
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庫存編號 792-0730
製造零件編號BTA208X-600E,127
HK$6.441
/個 (每包:10個)
單位
8A Through Hole TO-220F 10mA 600V 71A 3 1.5V 600V 12mA 10.3 x 4.6 x 15.8mm 10.3mm 4.6mm 15.8 (With Tab)mm
RS庫存編號 168-8658
製造零件編號T1610H-6T
HK$8.611
毎管:50 個
單位
16A Through Hole TO-220AB 10mA 600V 168A 3 1.3V 600V 15mA 10.4 x 4.6 x 15.9mm 10.4mm 4.6mm 15.9mm
RS庫存編號 168-6094
製造零件編號BTA12-600CRG
HK$10.241
毎管:50 個
單位
12A Through Hole TO-220AB 50mA 600V 126A 3 1.3V 600V 25mA 10.4 x 4.6 x 9.3mm 10.4mm 4.6mm 9.3mm
RS庫存編號 168-8604
製造零件編號T1650H-6I
HK$11.721
毎管:50 個
單位
16A Through Hole TO-220AB 50mA 600V 168A 3 1V 600V 75mA 10.4 x 4.6 x 15.9mm 10.4mm 4.6mm 15.9mm
RS庫存編號 177-4921
製造零件編號TMA166S-L
HK$14.943
個 (以毎袋:500)
單位
- Through Hole TO-220F 30mA 600V 168A 3 1.5V 600V - 10 x 4.2 x 8.5mm 10mm 4.2mm 8.5mm
RS庫存編號 188-8530
製造零件編號BTB41-800BRG
HK$50.235
/個 (每包:2個)
單位
41A Through Hole TOP 50mA - 420A 3 - 800V 80mA 15.5 x 4.6 x 21.1mm 15.5mm 4.6mm 21.1mm
RS庫存編號 330-5493
製造零件編號BT138X-600E,127
HK$8.28
單位
12A Through Hole TO-220F 25mA 600V 105A 3 1.5V 600V 30mA 10.3 x 4.6 x 9.3mm 10.3mm 4.6mm 9.3mm
RS庫存編號 168-6839
製造零件編號BTA12-600SWRG
HK$10.87
毎管:50 個
單位
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庫存編號 714-2558
製造零件編號BTA06-600CRG
HK$12.432
/個 (每包:5個)
單位
6A Through Hole TO-220AB 25mA 800V 63A 3 1.3V 800V 25mA 10.4 x 4.6 x 15.9mm 10.4mm 4.6mm 15.9mm
RS庫存編號 177-5206
製造零件編號T2500DG
BrandLittelfuse
HK$7.53
個 (以毎盒:500)
單位
6A Through Hole TO-220AB 60mA 400V 60A 3 2.5V 400V 30mA 10.28 x 4.82 x 15.75mm 10.28mm 4.82mm 15.75mm
RS庫存編號 165-7418
製造零件編號T435-600B-TR
HK$2.981
個 (在毎卷:2500)
單位
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