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

NTE56016

Triac; 400V; 25A; 50mA; THT; 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

5
Ships to you
between Thu. 20 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 7.6667

Multiples of: 1

NTE56018

Triac; 800V; 25A; 50mA; THT; 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

5
Ships to you
between Thu. 20 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 8.3333

Multiples of: 1

Q8040J7

Thyristor TRIAC 800V 400A 3-Pin(3+Tab) TO-218X
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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

5
Ships to you
between Thu. 20 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 13.4325

Multiples of: 1

NTE5652

Thyristor TRIAC 400V 30A 3-Pin TO-5
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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

5
Ships to you
between Thu. 20 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 18.6667

Multiples of: 1

NTE5693

Triac; 200V; 40A; 50/80mA; screw; bulk; TO48
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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

5
Ships to you
between Thu. 20 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 48.0357

Multiples of: 1

VS-VSKH71/08

SCR Modules 800 Volt 75 Amp 1360 Amp IFSM
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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.

Vishay

5
Ships to you
between Wed. 26 Nov to Fri. 28 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 53.027

Multiples of: 1

SKKT 27B14E

Module; thyristor/thyristor; 1.4kV; 27A; A48; SEMIPACK1; Ifsm:550A
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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.

Semikron

5
Ships to you
between Thu. 20 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 57.7672

Multiples of: 1

NTE5566

Thyristor SCR 600V 300A 3-Pin TO-48 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.

NTE

5
Ships to you
between Thu. 20 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 65.9921

Multiples of: 1

VS-VSKL105/06

SCR Modules 600 Volt 105 Amp 2094 Amp IFSM
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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.

Vishay

5
Ships to you
between Wed. 26 Nov to Fri. 28 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 79.6923

Multiples of: 1

SKKH 106/14E

Module; double series; 1.4kV; 106A; V: A46; SEMIPACK1; Ufmax:1.65V
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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.

Semikron

5
Ships to you
between Thu. 20 Nov to Wed. 26 Nov

November 2025