Category: Product News

Fast switching thyristor is the core component of induction furnace power supply & thyristor frequency converter.Thyristor frequency converter consists of rectifier bridge and inverter bridge.Fast thyristor usually used as inverter circuit,phase control thyristor used as rectifier circuit.Two or four fast SCR in series in the inverter circuit.

 

Thyristor Frequency Converter Schematic:

We have a wide current range fast switching thyristor which used on inverter bridge，for example KK800A/1000V-1800V,KK1000A/1000V-2000V,KK1200A/1000V-2000V,KK1500A/1000V-2200V,KK2500A/1800V-2800V,KK2700A/2000V-2800V,KK3000A/2000V-4500V,KK3500A/3000V-4500V,KK4000A/3000V-4500V ETC.These part numbers replace westcode R series SCR with good quality,and has successfully used on Inductotherm brand furnace,Ajax brand furnace,Germany ABP brand furnace…

 

Thyristor Frequency Converter Cabinet:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

What Is Rectifier Diode?

 

Rectifier diode is non-controlled semiconductor device which used as rectifier circuit.It has high voltage up to 8500V,High current up to 7000A.

 

Rectifier Diode Category:

• Standard Rectifier Diode
• Fast Recovery Diode
• Soft Recovery Diode
• Rectifier Diode module

Where are Rectifier Diodes Used?

 

Rectifier diodes are used on induction heating furnace,motor drives,inverter,high current power supply,power plant…

 

 

 

 

 

 

 

 

 

 

 

 

 

What Is Phase Control Thyristor

 

Phase control thyristor is a low loss switch semiconductor device.It has a wide voltage range,from 1000V-8000V,Current range 100A-5000A.As a high power electronic components,it play a very importment role on industry.

 

Where Is Phase Control Thyristor Used?

 

High voltage phase control thyristors are widely used on traction and transmission,SVC,Inductive heating,Soft Starter,High current power supply,Excitation,HVDC.It is also used as thyristor stack in series or in parallel.

 

Phase Control Thyristor Outline Size:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

What Is Fast Switching Thyristor?

 

Fast Switching Thyristor is a fast turn off semiconductor device,also called “Inverter Thyristor”,”Fast Thyristor”.Fast switching thyristor is a very importment thyristor component on furnace power supply.

 

Where Is Fast Switching Thyristor Used?

 

Disc type Fast Switching Thyristors are popular used on metal smelting areas,Induction heating furnace,smelting furnace,ARC furnace,Vacuum furnace,thyristor frequency converter.

 

Fast Switching Thyristor Part Number List:

 

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

 

 

What Is Welding Diode?

 

Welding diode is a high current low voltage semiconductor device.Its current range are from 7100A to 13500A.Voltage is 200V or 400V.Welding diodes also are known as “Welder Diodes”,”Welder Rectifier Diodes”.Welding diodes are the core rectifier components during resistance welder.

 

Welding Diodes Part Number List:

 

Part No.	IF(AV)	VRRM	IFSM	Outline
ZP4000A/200V-400V	4000A	200V-400V	45KA	D1
ZP7100A/200V-400V	7100A	200V-400V	55KA	D1
ZP10500A/200V-400V	10500A	200V-400V	70KA	D18
ZP12000A/200V-400V	12000A	200V-400V	85KA	D2
ZP13500A/200V-400V	13500A	200V-400V	85KA	D19
ZP16000A/200V-400V	16000A	200V-400V	120KA	D3
ZP18000A/200V-400V	18000A	200V-400V	120KA	D20

 

Where Are Welding Diodes Used?

 

Welding diodes are typically used on resistance welding equipment.Detailed applications are MFDC transformer of spot welding machine,IT gun transformer,Robotic welding gun.It is used as rectifier unit of welding transformer.

 

Welding Diodes Schematic On MFDC Transformer.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

What Is Thyristor？

 

Thyristor,also called silicon controlled rectifier,also known as SCR.It is a half-controlled semiconductor device.Thyristor is a four-layer semiconductor structure of PNPN. It has three poles: anode, cathode and control.It has silicon rectifier feature and can work wll under high voltage,high current conditions.

 

Thyristor Category：

 

According to shape distinctive，Thyristor have disc thyristor,stud thyristor and thyristor modules.

 

 

 

 

 

 

 

 

 

According to function distinctive,Thyristor have Phase control thyristor,Fast switching thyristor,High frequency thyristor.Also some people called rectifier thyristor and inverter thyristor.

 

Where Are Thyristors used?

 

Thyristor has a wide application.For example,thyristors are used on metal smelting,induction furnace,Vacuum furnace etc. Used on motor drives,soft starter,inverter,power plant…