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

PJX121SQ

3mA 200uA 1.2kV 1 unidirectional thyristor SOT-89 Thyristors (SCR)/Modules 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.

Pingjingsemi

0
6 to 16 Weeks

July 2026

July 2026
	S	M	T	W	T	F	S
27	28	29	30	1	2	3	4
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31	26	27	28	29	30	31	1
32	2	3	4	5	6	7	8

AUD 0.1059

Multiples of: 5

P0300SC-MS

DO-214AA Thyristor Surge Suppressors (TSS) ROHS
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.

MSKSEMI

0
6 to 16 Weeks

July 2026

July 2026
	S	M	T	W	T	F	S
27	28	29	30	1	2	3	4
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31	26	27	28	29	30	31	1
32	2	3	4	5	6	7	8

AUD 0.1063

Multiples of: 5

P0080LBL

DO-15 Thyristor Surge Suppressors (TSS) 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.

Yint

0
6 to 16 Weeks

July 2026

July 2026
	S	M	T	W	T	F	S
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 0.1067

Multiples of: 5

BT131-800

Thyristors - TRIACs SOT-223 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.

KEXIN

0
6 to 16 Weeks

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 0.1067

Multiples of: 5

P4200SB

SMB 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.

YFW Electronics

0
6 to 16 Weeks

July 2026

July 2026
	S	M	T	W	T	F	S
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 0.1082

Multiples of: 5

RS0108S-U

TO-92-3 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.

Haoruijia

0
6 to 16 Weeks

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 0.1086

Multiples of: 1

BT169B.126

Thyristor; 200V; 500mA; 0.8A; 50mA; Package: Ammo Pack; THT; TO92
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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

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 0.1096

Multiples of: 1

ES0640SDS

SMB Semiconductor Discharge Tubes (TSS) 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.

ElecSuper

0
6 to 16 Weeks

July 2026

July 2026
	S	M	T	W	T	F	S
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 0.1097

Multiples of: 5

BT134-600D

150mA 600V 1 TO-126P-3 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.

Kang Yang

0
6 to 16 Weeks

July 2026

July 2026
	S	M	T	W	T	F	S
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 0.1099

Multiples of: 5

P3100EAL

Thyristor Surge Protection Devices - TSPD 50A 275V
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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

July 2026