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

LJ4008D8RP

Triacs 8A 800V Sens Triacs TO-252 D-PAK
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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

2425
Ships to you
between Thu. 02 Jul to Wed. 08 Jul

July 2026

July 2026
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27	28	29	30	1	2	3	4
28	5	6	7	8	9	10	11
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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 1.4162

Multiples of: 1

L4004D3RP

Littelfuse Triacs 400V 4A Sensing 3-3-3-3mA
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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

2425
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between Thu. 02 Jul to Wed. 08 Jul

July 2026

July 2026
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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 1.3634

Multiples of: 1

MCR8DSMT4G

TO-252(DPAK) 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.

Littelfuse

2425
Ships to you
between Thu. 02 Jul to Wed. 08 Jul

July 2026

July 2026
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28	5	6	7	8	9	10	11
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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 1.6557

Multiples of: 1

BT151

TO-252 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.

Juxing Electronic Technology

2420
Ships to you
between Thu. 16 Jul to Tue. 21 Jul

July 2026

July 2026
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28	5	6	7	8	9	10	11
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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 0.1094

Multiples of: 5

MCR12DSMT4G

SCRs 600V 12A
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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

2420
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between Thu. 02 Jul to Wed. 08 Jul

July 2026

July 2026
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28	5	6	7	8	9	10	11
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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 1.5013

Multiples of: 1

SK006DRP

Littelfuse SCRs 6A 1000V
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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

2410
Ships to you
between Wed. 08 Jul to Fri. 10 Jul

July 2026

July 2026
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28	5	6	7	8	9	10	11
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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 1.3703

Multiples of: 1

BTA24-600B

Triac; 600V; 25A; 50/100mA; THT; bulk; TO220-3
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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.

CDIL

2397
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between Thu. 02 Jul to Wed. 08 Jul

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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 1.198

Multiples of: 1

Q6040J7TP

Triacs Altnstr 600V 40A Iso 100(1-3)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.

Littelfuse

2316
Ships to you
between Wed. 08 Jul to Fri. 10 Jul

July 2026

July 2026
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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 13.4357

Multiples of: 1

K2400G

220V~250V 10uA DO-15 Diacs Trigger Diode 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.

Littelfuse

1828
Ships to you
between Wed. 08 Jul to Fri. 10 Jul

July 2026

July 2026
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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 1.144

Multiples of: 1

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S8065KTP

SCRs SCR 800V 65A Iso
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Littelfuse

381
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between Wed. 08 Jul to Fri. 10 Jul

July 2026