T9S7301403DH Discrete Semiconductor Products

Thyristors - SCRs - Modules are an important part of the electronics industry. The T9S7301403DH is a type of thyristor module specifically designed for applications such as industrial heaters, electric traction systems, and power supplies. The T9S7301403DH is a fully integrated silicon-controlled rectifier (SCR) module, which combines several components into a single package, greatly reducing assembly and installation time.

T9S7301403DH Features

The T9S7301403DH features a wide blocking range up to 1,200 volts (V) DC and a continuous current rating of 30 amperes (A). It is designed for a maximum operating temperature of 150°C, and the package is mounted to the metal heat sink with stud bolts to create an effective heat sink. For enhanced performance, the module is equipped with an extended snubber circuit to enhance its performance in harsh environments.

Mechanical Construction

The T9S7301403DH is constructed with a mounting base, which is mounted to a metal heat sink. The metal heat sink ensures that the module can dissipate a large amount of heat generated during operation. The base contains a pair of thyristor glass-bodied SCRs, which are connected in a “Series” connection to form a single basic size element. The base of each SCR is fitted with a solder lug, which ensures secure mechanical connection. Furthermore, the lugs can be wired either in parallel or in series to create the desired SCR network.

T9S7301403DH Application

The T9S7301403DH device can be used for applications such as motor drives, solar inverters, uninterrupted power supplies, welding, medical X-ray machines, energy-saving lamps, industrial heating and refrigeration, rectifiers and chargers, and so forth. A wide range of barriers and accessories are also available for applications requiring higher precision and customization.

Working Principle

The working principle of the T9S7301403DH SCR module is based on the physical phenomenon of “optic current control”. When an external voltage is applied across the module, an electric field is created between the anode and the cathode, resulting in the flow of electrons (current) through the SCR’s conducting channels. The current can be controlled by adjusting the light input, thus greatly reducing system noise and ensuring precise current control in a very wide range. This is possible because the optically controlled SCR requires a much weaker external voltage than a conventional bipolar transistor.

Conclusion

The T9S7301403DH is a thyristor module specifically designed for a wide range of applications. It has a wide blocking range up to 1,200 V, and is capable of a continuous current rating of 30 A. This module is designed for a maximum operating temperature of 150°C, and the package is mounted to the metal heat sink with stud bolts to create an effective heat sink. The device can be used for a variety of different applications, and its optically controlled SCR requires a much weaker external voltage than a conventional bipolar transistor, allowing for enhanced performance in harsh environments.