Queensland grain supply two general thyristor module SCR module MTC40A

Features: ■ chip and backplane electrical insulation, 2500V AC insulation ■ international standard packaging; full crimp structure, excellent temperature characteristics and power cycling capability ■ small size, light weight ■ 350A following modules are all forced air cooling, 400A above modules, Typical applications for air-cooled selection: ■ heating controller ■ AC and DC motor control ■ Various rectifying power supply ■ AC switch use: First, conditions and precautions: 1, the use of the environment should be no severe vibration and shock, environmental media should non-corrosive metal and damage the insulation of impurities and atmosphere. 2, the module die junction temperature: SCR is -40 ℃ ∽125 ℃; ambient temperature not higher than 40 ℃; humidity less than 86%. 3, the module must be installed before use radiator, matching the next section of the radiator. Cooling may be natural cooling, forced air-cooled or water-cooled. When forced air cooling, wind speed should be more than 6 m? S. Second, the Installation Notes: 1, due to the MTC is insulated thyristor modules (or module terminal on the dielectric strength between the copper plate is greater than 2.5KV RMS), so you can put more than one module is installed on the same heatsink or housing unit on the ground. 2, the radiator mounting surface should be flat, smooth, can not have a scratch, bump and debris. Radiator surface finish should be less than 10μm. When the module is mounted to the radiator, between the contact surfaces should be coated with a thin layer of thermal grease. Grease ago, the oxide layer with fine sandpaper to remove the heat sink contact surface, and then wipe the surface clean, make good contact, to reduce thermal resistance. Module fastened to the radiator surface, using M5 or M6 screws and spring washers, and screws tightening torque 4NM module main electrode copper wiring should be used, and there are smooth contact surface, the contact is good. Module three hours after each screw to be secured over again. When users select optional radiator radiator module, you must consider the following factors: ① module current size, to determine the required cooling area; ② use environment that allow you to determine what Cooling - natural cooling, forced air cooling, or cooling; ③ device shape, size, size of the space reserved for the radiator, thus can determine in what form of heat dissipation. Generally speaking, most users will choose aluminum radiator. For the convenience of users, various types of modules produced by our company, in the characteristic parameter table are given the required cooling area. This area is the reference value in the module at full capacity and forced air cooling. Radiator length formula given below: Module required heat dissipation area = (radiator perimeter) × (radiator length) + (cross-sectional area) × 2 where cooling area required for the module module parameters given in the table The reference value, radiator perimeter, cross-sectional area can be found on the radiator factory samples, radiator length of the unknown quantity. Solemnly declare: the current market is flooded with a variety of low-grade heat sink, the purchase is pay attention to identify, as a result of the use of inferior radiator module cause damage or other serious consequences, the company is not responsible.