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

Q4008L4

Triacs 400V 8A 25-25-25mA
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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

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 1.7568

Multiples of: 500

S6006RS2TP

SCRs 600V 6A 200uA
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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

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 1.7589

Multiples of: 1000

NTE56040

Triac; 500V; 4A; 10/25mA; THT; sensitive gate; tube; 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.

NTE

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 1.7657

Multiples of: 1

NTE56051

Triac; 500V; 8A; 5/10mA; THT; logic level; tube; 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.

NTE

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 1.7657

Multiples of: 1

Q8008RH4TP

Triacs 800V 8A ALTNSTR 35-35-35 mA 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

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 1.7681

Multiples of: 500

S6015L53

SCRs 15A 600V
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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

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 1.7728

Multiples of: 500

SJ6020R2TP

SCRs 20A High Temp Thyristor
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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

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 1.7745

Multiples of: 1

Q8006LH4

Thyristor TRIAC 800V 85A 3-Pin(3+Tab) TO-220AB Isolated
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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

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 1.7747

Multiples of: 1

BCR5PM-12LA(#B00)

Thyristor TRIAC 600V 50A 3-Pin(3+Tab) TO-220F
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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.

Renesas

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 1.775

Multiples of: 1

BTA41-1200B

TO-3P TRIACs 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.

SLKORMICRO

0
6 to 16 Weeks

December 2026