About Thyristors

Thyristors

A thyristor is a type of semiconductor device that acts like a switch, allowing energy to flow in one direction only. It is a three-terminal electronic device composed of four layers of alternating P-type and N-type material that can operate in four different states: off, forward blocking, reverse blocking, and forward conducting. In its off state, the thyristor does not conduct current; in its forward blocking state, it allows current to flow in the forward direction only; in its reverse blocking state, it allows current to flow in the reverse direction only; and in its forward conducting state, it allows current to flow in either the forward or reverse direction. Thyristors can be used in many applications such as power control, over-current protection, motor speed control, and lighting dimmers.

Thyristors

Diacs

SCR Modules

SCRs

Sidacs

Thyristor Surge Protection Devices - TSPD

Triacs

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Image	Stock Code(▲▼)	Description	Manufacturer	Availability ⓘ (▲▼)	Price(AUD) (Ex. GST)(▲▼)	Enter Qty

BTA208X-1000B,127

Triac; 1kV; 8A; TO220FP; Igt: 50mA; Ifsm: 65A; 3Q,Hi-Com
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

WeEn Semiconductor

948
Ships to you
between Mon. 17 Nov to Fri. 21 Nov

November 2025

November 2025
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44	26	27	28	29	30	31	1
45	2	3	4	5	6	7	8
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47	16	17	18	19	20	21	22
48	23	24	25	26	27	28	29
49	30	1	2	3	4	5	6

AUD 0.7689

Multiples of: 1

MAC9DG

TRIAC Standard 400 V 8 A Through Hole TO-220AB
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ON Semiconductor

948
Ships to you
between Fri. 21 Nov to Tue. 25 Nov

November 2025

November 2025
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44	26	27	28	29	30	31	1
45	2	3	4	5	6	7	8
46	9	10	11	12	13	14	15
47	16	17	18	19	20	21	22
48	23	24	25	26	27	28	29
49	30	1	2	3	4	5	6

AUD 1.114

Multiples of: 1

BTA16-800SW3G

Triacs ISO TO220 16A 10MA TRIAC
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Littelfuse

948
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between Mon. 17 Nov to Fri. 21 Nov

November 2025

November 2025
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44	26	27	28	29	30	31	1
45	2	3	4	5	6	7	8
46	9	10	11	12	13	14	15
47	16	17	18	19	20	21	22
48	23	24	25	26	27	28	29
49	30	1	2	3	4	5	6

AUD 4.8222

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MCR12NG

SCRs 800V 12A
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Littelfuse

947
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between Mon. 17 Nov to Fri. 21 Nov

November 2025

November 2025
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44	26	27	28	29	30	31	1
45	2	3	4	5	6	7	8
46	9	10	11	12	13	14	15
47	16	17	18	19	20	21	22
48	23	24	25	26	27	28	29
49	30	1	2	3	4	5	6

AUD 2.6444

Multiples of: 1

BTA212-600E,127

Triac; 600V; 12A; TO220AB; Igt: 10mA; Ifsm: 95A; 3Q,Hi-Com
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

WeEn Semiconductor

946
Ships to you
between Mon. 17 Nov to Fri. 21 Nov

November 2025

November 2025
	S	M	T	W	T	F	S
44	26	27	28	29	30	31	1
45	2	3	4	5	6	7	8
46	9	10	11	12	13	14	15
47	16	17	18	19	20	21	22
48	23	24	25	26	27	28	29
49	30	1	2	3	4	5	6

AUD 1.1556

Multiples of: 1

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MAC8DG

TRIAC Standard 400 V 8 A Through Hole TO-220AB
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

ON Semiconductor

946
Ships to you
between Fri. 21 Nov to Tue. 25 Nov

November 2025

November 2025
	S	M	T	W	T	F	S
44	26	27	28	29	30	31	1
45	2	3	4	5	6	7	8
46	9	10	11	12	13	14	15
47	16	17	18	19	20	21	22
48	23	24	25	26	27	28	29
49	30	1	2	3	4	5	6

AUD 1.2257

Multiples of: 1

MCR72-3G

SCRs 100V 8A
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Littelfuse

946
Ships to you
between Mon. 17 Nov to Fri. 21 Nov

November 2025

November 2025
	S	M	T	W	T	F	S
44	26	27	28	29	30	31	1
45	2	3	4	5	6	7	8
46	9	10	11	12	13	14	15
47	16	17	18	19	20	21	22
48	23	24	25	26	27	28	29
49	30	1	2	3	4	5	6

AUD 1.5333

Multiples of: 1

SK016RTP

SCRs 1000V 16A SCR TO220
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Littelfuse

946
Ships to you
between Fri. 21 Nov to Tue. 25 Nov

November 2025

November 2025
	S	M	T	W	T	F	S
44	26	27	28	29	30	31	1
45	2	3	4	5	6	7	8
46	9	10	11	12	13	14	15
47	16	17	18	19	20	21	22
48	23	24	25	26	27	28	29
49	30	1	2	3	4	5	6

AUD 1.9556

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MAC12DG

Triacs Sensitive Gate
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Littelfuse

946
Ships to you
between Mon. 17 Nov to Fri. 21 Nov

November 2025

November 2025
	S	M	T	W	T	F	S
44	26	27	28	29	30	31	1
45	2	3	4	5	6	7	8
46	9	10	11	12	13	14	15
47	16	17	18	19	20	21	22
48	23	24	25	26	27	28	29
49	30	1	2	3	4	5	6

AUD 3.0889

Multiples of: 1

CR08AS-12B

Thyristors - TRIACs SOT-89 RoHS
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KEXIN

945
Ships to you
between Mon. 01 Dec to Thu. 04 Dec

December 2025