Fast Switching Thyristor

We supply various shapes of fast switching thyristor which is also called fast thyristor.It is a fast turn off thyristor.Our fast thyristor include standard fast switching thyristor and medium frequency fast thyristor.It’s current range from 500A to 4000A, voltage range from 1000V to 4500V.Tq value have 10-25us,30-50us and 50-70us.With excellent fast turn on-off performance,our fast thyristors are hot used on inverter circuit.For example induction heating,thyristor frequency converter,furnace power supply,inverter device etc.

Along with application of high frequency & medium frequency equipment,fast thyristors require lower tq values.We continuously optimize tq values of fast switching thyristor to meet client’s requirements.

Fast Thyristor Features:

1,Very short turn-on and turn-off time

2,Large critical rates of current rise

2,High surge current ratings

3,Wide operating temperature range

Fast Switching Thyristor Typical Applications:

1,Induction heating，surface treatment,smelting furnace

2,DC chopper drives,Inverter

3,UPS

4,Pulse power supply

5,Other fast switch equipments.

Fast Switching Thyristor Model Table:

Disc fast thyristor

Part Number	IT(AV) Tc=55	VDRM VRRM	ITSM	I²t	VTO	rT	tq value(us)	Rthjc	Rthch	F(KN)	Outline
Upto 1600V
KK200A 12-16	200A	1200V-1600V	4KA	80	1.60V	1.50	16-25us	0.085	0.02	6	T6
KK300A 12-16	300A	1200V-1600V	4.3KA	92	1.50	1.40	16-25us	0.045	0.01	9	T7
KK400A 12-16	400A	1200V-1600V	8.5KA	361	1.40	1.20	16-25us	0.040	0.01	16	T9
Up to 1800V
KK500A/12-18	500A	1200V-1800V	6.5KA	211	1.45	0.60	16-25us	0.040	0.01	16	T9
KK600A/12-18	600A	1200V-1800V	10KA	500	1.30	0.50	16-25us	0.040	0.01	20	T9
KK800A/12-18	800A	1200V-1800V	12KA	720	1.35	0.40	16-25us	0.030	0.008	20	T10
KK1000A/12-18	1000A	1200V-1800V	14KA	980	1.55	0.35	16-25us	0.020	0.006	25	T11
KK1200A/12-18	1200A	1200V-1800V	16KA	1280	1.50	0.30	16-25us	0.018	0.006	32	T12
KK1500A/12-18	1500A	1200V-1800V	18KA	1620	1.45	0.26	16-25us	0.018	0.006	32	T12
KK1800A/12-18	1800A	1200V-1800V	19KA	1805	1.42	0.25	16-25us	0.013	0.005	45	T13
KK2000A/12-18	2000A	1200V-1800V	23KA	2645	1.45	0.20	25-40us	0.012	0.005	50	T14
KK2500A/12-18	2500A	1200V-1800V	31KA	4805	1.30	0.15	25-40us	0.011	0.002	55	T15
Up to 2200V
KK1200A/20-22	1200A	2000V-2200V	15KA	1125	1.45	0.40	30-50us	0.020	0.006	25	T11
KK1500A/20-22	1500A	2000V-2200V	16KA	1280	1.50	0.32	30-50us	0.018	0.006	32	T12
KK1800A/20-22	1800A	2000V-2200V	18KA	1620	1.50	0.30	30-50us	0.003	0.003	45	T13
KK2000A/20-22	2000A	2000V-2200V	20KA	2000	1.50	0.25	30-50us	0.003	0.003	50	T14
KK2500A/20-22	2500A	2000V-2200V	30KA	4500	1.30	0.20	30-50us	0.002	0.002	55	T15
Up to 3000V
KK1000A/25-28	1000A	2500V-2800V	10KA	500	1.55	0.50	30-40us	0.020	0.006	25	T11
KK1200A/25-28	1200A	2500V-2800V	12KA	720	1.50	0.45	30-40us	0.018	0.006	32	T12
KK1500A/25-28	1500A	2500V-2800V	15KA	1125	1.50	0.32	30-40us	0.018	0.006	32	T12
KK1800A/25-28	1800A	2500V-2800V	18KA	1620	1.50	0.32	30-40us	0.013	0.005	45	T13
KK2000A/25-28	2000A	2500V-2800V	20KA	2000	1.48	0.25	30-40us	0.012	0.005	50	T14
KK2500A/25-28	2500A	2500V-2800V	25KA	3125	1.50	0.18	30-50us	0.011	0.002	55	T15
KK3000A/25-28	3000A	2500V-3000V	35KA	6125	1.32	0.15	70-85us	0.007	0.002	70	T16
KK4000A/25-28	4000A	2500V-3000V	45KA	10125	1.30	0.13	100-115us	0.006	0.001	90	T17
Up to 4500V
KK3200A/35-45	3200A	3500V-4500V	41KA	8405	1.65	0.22	150-200us	0.006	0.001	90	T17
KK4000A/35-45	4000A	3500V-4500V	45KA	8100	1.68	0.25	150-200us	0.006	0.001	90	T17

Fast Thyristor Outline Drawing:

Download Fast Switching Thyristor Datasheet:

Catalog of Fast Switching Thyristor