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 Stock No. 800-9715
Mfr. Part No.BTA12-600BW3G
BrandLittelfuse
€1.854
Each (In a Pack of 10)
units
12A Through Hole TO-220 50mA 600V 105A 3 1.7V 800V 50mA 10.28 x 4.82 x 15.75mm 10.28mm 4.82mm 15.75mm
RS Stock No. 177-5182
Mfr. Part No.BTB16-800CW3G
BrandLittelfuse
€0.938
Each (In a Tube of 50)
units
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 Stock No. 800-9768
Mfr. Part No.BTB16-800CW3G
BrandLittelfuse
€1.031
Each (In a Pack of 10)
units
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 Stock No. 103-5139
Mfr. Part No.2N6073AG
BrandLittelfuse
€0.224
Each (In a Box of 500)
units
4A Through Hole TO-225 30mA 400V 30A 3 2.5V 400V 30mA 7.74 x 2.66 x 11.04mm 7.74mm 2.66mm 11.04mm
RS Stock No. 774-3432
Mfr. Part No.2N6073AG
BrandLittelfuse
€0.24
Each (In a Pack of 5)
units
4A Through Hole TO-225 30mA 400V 30A 3 2.5V 400V 30mA 7.74 x 2.66 x 11.04mm 7.74mm 2.66mm 11.04mm
RS Stock No. 177-5197
Mfr. Part No.2N6075BG
BrandLittelfuse
€0.306
Each (In a Bag of 500)
units
4A Through Hole TO-225 5mA 600V 30A 3 2.5V 600V 15mA 7.74 x 2.66 x 11.04mm 7.74mm 2.66mm 11.04mm
RS Stock No. 878-1895
Mfr. Part No.Q6012LH5
BrandLittelfuse
€1.78
Each (In a Pack of 10)
units
12A Through Hole TO-220 50mA 600V 120A 3 1.3V - 50mA 10.67 x 4.78 x 15.75mm 10.67mm 4.78mm 15.75mm
RS Stock No. 463-331
Mfr. Part No.2N6075BG
BrandLittelfuse
€0.637
Each (In a Pack of 20)
units
4A Through Hole TO-225 5mA 600V 30A 3 2.5V 600V 15mA 7.74 x 2.66 x 11.04mm 7.74mm 2.66mm 11.04mm
RS Stock No. 124-9962
Mfr. Part No.BTA12-600BW3G
BrandLittelfuse
€1.685
Each (In a Tube of 50)
units
12A Through Hole TO-220 50mA 600V 105A 3 1.7V 800V 50mA 10.28 x 4.82 x 15.75mm 10.28mm 4.82mm 15.75mm
RS Stock No. 753-2585
Mfr. Part No.BTA16-600SW3G
BrandLittelfuse
€1.465
Each (In a Pack of 2)
units
16A Through Hole TO-220AB 10mA - 170A 3 1.3V 600V 20mA 10.28 x 4.82 x 15.75mm 10.28mm 4.82mm 15.75mm
RS Stock No. 177-5183
Mfr. Part No.MAC12DG
BrandLittelfuse
€0.567
Each (In a Tube of 50)
units
12A Through Hole TO-220AB 35mA 400V 100A 3 1.5V 800V 40mA 10.28 x 4.82 x 15.75mm 10.28mm 4.82mm 15.75mm
RS Stock No. 862-4926
Mfr. Part No.MAC15A8G
BrandLittelfuse
€1.341
Each (In a Pack of 10)
units
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 Stock No. 177-5184
Mfr. Part No.MAC12HCMG
BrandLittelfuse
€0.552
Each (In a Tube of 50)
units
12A Through Hole TO-220AB 50mA 600V 100A 3 1.5V 800V 60mA 10.28 x 4.82 x 15.75mm 10.28mm 4.82mm 15.75mm
RS Stock No. 177-5198
Mfr. Part No.2N6075AG
BrandLittelfuse
€0.306
Each (In a Box of 500)
units
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
RS Stock No. 793-1894
Mfr. Part No.L4008D6RP
BrandLittelfuse
€0.552
Each (In a Pack of 5)
units
8A Surface Mount DPAK (TO-252) 5 mA, 10 mA 400V 100A 3 1.3V 400V 10mA 6.73 x 7.49 x 2.41mm 6.73mm 7.49mm 2.41mm
RS Stock No. 862-4935
Mfr. Part No.MAC228A6G
BrandLittelfuse
€0.98
Each (In a Pack of 10)
units
8A Through Hole TO-220AB 10mA 400V 80A 3 2.5V 400V 15mA 10.53 x 4.83 x 15.75mm 10.53mm 4.83mm 15.75mm
RS Stock No. 806-2403
Mfr. Part No.MAC4DCNT4G
BrandLittelfuse
€0.819
Each (In a Pack of 20)
units
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 Stock No. 177-5195
Mfr. Part No.MAC8NG
BrandLittelfuse
€0.825
Each (In a Tube of 50)
units
8A Through Hole TO-220AB 35mA 800V 80A 3 1.5V 800V 40mA 10.28 x 4.82 x 15.75mm 10.28mm 4.82mm 15.75mm
RS Stock No. 177-5192
Mfr. Part No.MAC8SNG
BrandLittelfuse
€0.797
Each (In a Tube of 50)
units
8A Through Hole TO-220AB 5mA 800V 70A 3 1.5V 800V 10mA 10.28 x 4.82 x 15.75mm 10.28mm 4.82mm 15.75mm
RS Stock No. 171-9497
Mfr. Part No.Q6015L5TP
BrandLittelfuse
€1.48
Each (In a Tube of 500)
units
15A Through Hole TO-220AB 50mA 600V 200A 3 2V - 70mA 10.67 x 4.78 x 15.75mm 10.67mm 4.78mm 15.75mm