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

2N6073AG

Triacs THY 4A 400V TRIACR
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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

2389
Ships to you
between Fri. 10 Jul to Thu. 16 Jul

July 2026

July 2026
	S	M	T	W	T	F	S
27	28	29	30	1	2	3	4
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30	19	20	21	22	23	24	25
31	26	27	28	29	30	31	1
32	2	3	4	5	6	7	8

AUD 1.1116

Multiples of: 1

BTA06-800TWRG

Triacs 6 A IT 600/800 V 5 to 50 IGT mA
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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.

STMicroelectronics

242
Ships to you
between Fri. 10 Jul to Thu. 16 Jul

July 2026

July 2026
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27	28	29	30	1	2	3	4
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30	19	20	21	22	23	24	25
31	26	27	28	29	30	31	1
32	2	3	4	5	6	7	8

AUD 0.8358

Multiples of: 1

RS04C06-E

Thyristors - TRIACs Two-way thyristor 600V TO-220C RoHS
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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.

Haoruijia

0
6 to 16 Weeks

December 2026

December 2026
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49	29	30	1	2	3	4	5
50	6	7	8	9	10	11	12
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52	20	21	22	23	24	25	26
53	27	28	29	30	31	1	2
2	3	4	5	6	7	8	9

AUD 0.4922

Multiples of: 1

BT138B-600G

Triac; 600V; 12A; TO263; Igt: 50mA; Ufmax: 1.7V
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Luguang

0
6 to 16 Weeks

December 2026

December 2026
	S	M	T	W	T	F	S
49	29	30	1	2	3	4	5
50	6	7	8	9	10	11	12
51	13	14	15	16	17	18	19
52	20	21	22	23	24	25	26
53	27	28	29	30	31	1	2
2	3	4	5	6	7	8	9

AUD 0.4934

Multiples of: 1

JST30A-800CW

TO-220AB TRIACs ROHS
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JieJie

0
6 to 16 Weeks

December 2026

December 2026
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49	29	30	1	2	3	4	5
50	6	7	8	9	10	11	12
51	13	14	15	16	17	18	19
52	20	21	22	23	24	25	26
53	27	28	29	30	31	1	2
2	3	4	5	6	7	8	9

AUD 0.4943

Multiples of: 1

BT137X-600,127

Triacs RAIL TRIAC
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NXP

0
6 to 16 Weeks

December 2026

December 2026
	S	M	T	W	T	F	S
49	29	30	1	2	3	4	5
50	6	7	8	9	10	11	12
51	13	14	15	16	17	18	19
52	20	21	22	23	24	25	26
53	27	28	29	30	31	1	2
2	3	4	5	6	7	8	9

AUD 0.4949

Multiples of: 1

BTA204-600B,127

Triac; 600V; 4A; TO220AB; Igt: 50mA; Ifsm: 25A; 3Q,Hi-Com
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WeEn Semiconductor

0
6 to 16 Weeks

December 2026

December 2026
	S	M	T	W	T	F	S
49	29	30	1	2	3	4	5
50	6	7	8	9	10	11	12
51	13	14	15	16	17	18	19
52	20	21	22	23	24	25	26
53	27	28	29	30	31	1	2
2	3	4	5	6	7	8	9

AUD 0.4954

Multiples of: 1

BTA204-600C,127

Triac; 600V; 4A; TO220AB; Igt: 35mA; Ifsm: 25A; 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

0
6 to 16 Weeks

December 2026

December 2026
	S	M	T	W	T	F	S
49	29	30	1	2	3	4	5
50	6	7	8	9	10	11	12
51	13	14	15	16	17	18	19
52	20	21	22	23	24	25	26
53	27	28	29	30	31	1	2
2	3	4	5	6	7	8	9

AUD 0.4954

Multiples of: 1

BTA204-800C,127

Triac; 800V; 4A; TO220AB; Igt: 35mA; Ifsm: 25A; 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

0
6 to 16 Weeks

December 2026

December 2026
	S	M	T	W	T	F	S
49	29	30	1	2	3	4	5
50	6	7	8	9	10	11	12
51	13	14	15	16	17	18	19
52	20	21	22	23	24	25	26
53	27	28	29	30	31	1	2
2	3	4	5	6	7	8	9

AUD 0.4954

Multiples of: 1

BTA204-600F,127

Triac; 600V; 4A; TO220AB; Igt: 25mA; Ifsm: 25A; 3Q,Hi-Com
Icon ROHS

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

0
6 to 16 Weeks

December 2026