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

Sorting

Sort Column:

Sort Direction:

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

BTB16-800B

TO-263 TRIACs 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.

SLKORMICRO

741
Ships to you
between Tue. 02 Dec to Fri. 05 Dec

December 2025

December 2025
	S	M	T	W	T	F	S
49	30	1	2	3	4	5	6
50	7	8	9	10	11	12	13
51	14	15	16	17	18	19	20
52	21	22	23	24	25	26	27
53	28	29	30	31	1	2	3
2	4	5	6	7	8	9	10

AUD 0.4114

Multiples of: 1

BTA316-800ET.127

Triac; 800V; 16A; 10mA; THT; high temperature, sensitive gate; tube
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

741
Ships to you
between Tue. 18 Nov to Mon. 24 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 1.0364

Multiples of: 1

K180SA

SMA(DO-214AC) Diacs Trigger Diode 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.

Weida Semiconductor

737
Ships to you
between Tue. 02 Dec to Fri. 05 Dec

December 2025

December 2025
	S	M	T	W	T	F	S
49	30	1	2	3	4	5	6
50	7	8	9	10	11	12	13
51	14	15	16	17	18	19	20
52	21	22	23	24	25	26	27
53	28	29	30	31	1	2	3
2	4	5	6	7	8	9	10

AUD 0.0617

Multiples of: 10

BTA312B-800B,118

Thyristor TRIAC 800V 110A 3-Pin(2+Tab) D2PAK T/R
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

737
Ships to you
between Tue. 18 Nov to Mon. 24 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 1.1778

Multiples of: 1

BTA316B-600E.118

Triac; 600V; 16A; 10mA; SMD; sensitive gate; 3Q, Hi-Com; Reel, tape
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

737
Ships to you
between Tue. 18 Nov to Mon. 24 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 1.2444

Multiples of: 1

BTA20-700BWRG

Triac; 700V; 20A; 50mA; THT; Snubberless™; tube; TO220ABIns
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.

STMicroelectronics

730
Ships to you
between Mon. 24 Nov to Wed. 26 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 1.5505

Multiples of: 1

BTB16-600BW3G

Triacs 16A 50mA 600V IGT 3 QUAD
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.

ON Semiconductor

730
Ships to you
between Mon. 24 Nov to Wed. 26 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 1.8981

Multiples of: 1

Q8015L5TP

Triacs 800V 15A
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.

Littelfuse

728
Ships to you
between Mon. 24 Nov to Wed. 26 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 3.2825

Multiples of: 1

BT139-600E.127

Thyristors - TRIACs Two-way thyristor 600V TO-220AB 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.

WeEn Semiconductor

727
Ships to you
between Tue. 18 Nov to Mon. 24 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 1.0267

Multiples of: 1

ES0640SC

77V 125mA 58V 5uA SMB Semiconductor Discharge Tubes (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.

ElecSuper

0
6 to 16 Weeks