What is a thyristor?
The thyristor may be considered a rather an unusual form of electronics component because it consists of four layers of differently doped silicon rather than the three layers of the conventional bipolar transistors.

Whereas conventional bipolar transistors may have a p-n-p or n-p-n structure with the electrodes named collector, base and emitter, the thyristor has a p-n-p-n structure with the outer layers with their electrodes referred to as the anode (n-type) and the cathode (p-type). The control terminal of the SCR is named the gate and it is connected to the p-type layer that adjoins the cathode layer.

Basic structure of a thyristor or SCR - silicon controlled rectifier
Basic structure of a thyristor / SCR
Thyristors are usually manufactured from silicon, although, in theory other types of semiconductor could be used. The first reason for using silicon for thyistors is that silicon is the ideal choice because of its overall properties. It is able to handle the voltage and currents required for high power applications. Additionally it has good thermal properties. The second major reason is that silicon technology is well established and it is widely used for a variety of semiconductor devices. As a result it is very cheap and easy for semiconductor manufacturers to use for their electronic components.

Specification of Diode Thyristor Rectifier

	ID=25A ~ 300A, VRRM= 1600V or custom made, Tjm= 150℃, VISO≥2.5KV The parameters in the table are the ratings and characteristics of each diode chip in module(Except for In) Suitable for types: MDS Three Phase Rectifier Bridges Modules TYPE ID TC VFM (V) VTM (V) IRRM (mA) Rth(j-c) (℃/W) Rth(c-h) (℃/W) Fig Circuit (A) (℃) MDS25 25 90 1.5 1.5 4 2.45 0.1 16,17 MDS35 35 90 1.4 1.5 4 1.87 0.1 16,17 MDS60 60 90 1.4 1.5 9 0.70 0.1 4,5 MDS75 75 90 1.4 1.5 9 0.70 0.1 4,5 MDS100 100 90 1.4 1.5 9 0.55 0.05 4,5 MDS150 150 90 1.4 1.5 9 0.42 0.05 6 MDS200 200 90 1.4 1.5 9 0.35 0.05 6 MDS250 250 90 1.4 1.5 14 0.29 0.05 6 MDS300 300 90 1.4 1.5 14 0.42 0.05 6
TYPE:SDK30-16 VRRM:1 600V Max Load Current:30A Dimensions:80×29×27mm Fixing size:68mm, Φ7mm		TYPE:SKB30-16 VRRM:1 600V Max Load Current:30A,60A Dimensions:71×60×31 mm Fixing size:60mm, Φ5.9mm	TYPE:IRKD70-16 VRRM:1 600V Max Load Current:70A Dimensions:40×27×26mm Fixing size:30mm, Φ4mm
TYPE:SDK75-16 VRRM:1 600V Max Load Current:75A Dimensions:65×48×34mm Fixing size:50mm, Φ5mm		TYPE:VU0125-16 VRRM:1 600V Max Load Current:125A Dimensions:67×50×31mm Fixing size:50mm, Φ7mm	TYPE:VU0155-16 VRRM:1 600V Max Load Current:155A,200A Dimensions:94×53.7×30mm Fixing size:80mm, Φ6.5mm

	Ir(AV)=20A ~ 800A, VDRM= 1600, 1800V or custom made, Tjm=125C, dv/dt≥500V/μs, VISO≥ 2.5KV(RMS) The parameter in the table are the ratings and characteristics of each thyristor (diode) chip in module Suitable for types: MTC,MT/DC,MTK,MT/DK, MTA,MTX,MT/DX Thyristor Modules TYPE IT(AV) TCIT(RMS) VGT IGT IRRM (mA) VTM (mA) Rth(j-c) (℃/W) Rth(c-h) (℃/W) Fig Circuit (A) (℃) (A) (V) (25℃) (mA) (25℃) MTC25 25 85 40 ≤2.0 60±10 ≤10 ≤1.6 0.32 0.1 1 MTC40 40 85 65 ≤2.0 60±10 ≤10 ≤1.6 0.26 0.1 1 MTC55 55 85 86 ≤2.5 60±10 ≤10 ≤1.6 0.225 0.1 1 MTC70 70 85 110 ≤2.5 60±10 ≤15 ≤1.6 0.172 0.1 1 MTC90 90 85 140 ≤2.5 65±15 ≤15 ≤1.6 0.139 0.1 2 MTC110 110 85 170 ≤2.5 65±15 ≤15 ≤1.6 0.110 0.05 2 MTC130 130 85 200 ≤2.5 65±15 ≤20 ≤1.6 0.095 0.05 2 MTC160 160 85 250 ≤2.5 70±15 ≤20 ≤1.8 0.090 0.05 2 MTC200 200 85 310 ≤120 70±15 ≤20 ≤1.8 0.080 0.05 2 MTC250 250 85 390 ≤2.5 70±15 ≤20 ≤1.8 0.060 0.05 3 MTC300 300 85 470 ≤3.0 70±15 ≤20 ≤1.8 0.040 0.05 3 MTC350 350 80 550 ≤3.0 70±15 ≤30 ≤1.8 0.040 0.03 10 MTC400 400 80 630 ≤3.0 70±15 ≤30 ≤1.8 0.110 0.03 10 MTC500 500 80 785 ≤3.0 80±15 ≤30 ≤2.0 0.084 0.03 10 MTC700 700 80 1010 ≤3.0 85±15 ≤50 ≤2.0 0.076 0.03 11 MTC800 800 70 1256 ≤3.0 85±15 ≤50 ≤2.0 0.050 0.03 11
TYPE: SKCH50-16 VRRM:1 600V Max Load Current:50A Dimensions:71×60×31 mm Fixing size:60mm, Φ5.9mm		TYPE:IRKT71-16 VRRM:1 600V Max Load Current:71A,90A Dimensions:92×20.5×30mm Fixing size:80mm, Φ6.4mm	TYPE:TT90N16TOF VRRM:1 600V Max Load Current:90A Dimensions:92.5×20×29 mm Fixing size:80.7mm, Φ6mm
TYPE:SKKT160-16 VRRM:1 600V Max L oad Current:1 60A,200A Dimensions:95×34×29mm Fixing size:80mm, Φ5.96mm		TYPE:SKKT300-16 VRRM:1 600V Max Load Current:300A,400A Dimensions:115×50×53mm Fixing size:80×38mm, Φ6mm	TYPE:SKKH400-16 VRRM:1 600V Max Load Current:400A,500A Dimensions:150×60×54mm Fixing size:112×48mm, Φ6mm

Our Company

Founded in 1992, Wuxi Gold Control Technology Co., Ltd., a private high tech company, is specialized in the research and production of Solid State Relays, Electronic Semiconductors, DC Motor Drivers and AC Voltage Regulation Devices.

For the past 10 consecutive years, our company has been qualified as "Jiangsu's private high tech business". We have also been given the honor as "Wuxi's 10 Best Private Science & Technology Enterprises" for years.

Our products, the electronic modules with the brand of Gold, have been listed among "Wuxi's Renowned Products".Our company has 5 patents on Solid State Relays. Our products are widely used in various industrial automation control areas like chemical fiber machinery, temperature control of electric furnace, rubber & plastic machinery, fountain control and digital-controlled machinery, and are sold to Europe, America, Korea and Turkey.

Our Factory

Our factory can produce about 50,000 pieces each month. We can give you good quality and reasonable prices. We have 20 professional research people who have all been graduated from famous universities and colleges. When producing, we have strict tests: self-test, inter-test and special-test.

Our Certificate

Our products, the electronic modules with the brand of Gold, have been listed among "Wuxi's Renowned Products".Our company has 5 patents on Solid State Relays. Our products are widely used in various industrial automation control areas like chemical fiber machinery, temperature control of electric furnace, rubber & plastic machinery, fountain control and digital-controlled machinery, and are sold to Europe, America, Korea and Turkey.

Our company passed the Certification of ISO9001:2000 in 2000. Our main products have been given CE Certificate of European Union, UL,CUL and RoHS Certificates.