TT104N12KOFHPSA1 Discrete Semiconductor Products

Thyristors - SCRs - Modules: TT104N12KOFHPSA1 Application Field and Working Principle

This article demystifies the application field and working principle of a Thyristor - SCR - Module TT104N12KOFHPSA1. This product group is part of the portfolio of ZPD, an international integrated components supplier. As a new type of semiconductor power switch, the TT104N12KOFHPSA1 is a 10A, 4kV super-fast recovery diode module with good noise immunity and excellent power handling performance.

The SCR module has been designed for its high safety, efficiency, and reliability. The module is composed of four busbar studs for connecting to the circuit, four compartments (two on the top and two on the bottom) for each thyristor, one bulkhead (interstitial space between the components and the circuitry), and a spring clamp connection. This type of module has an internal cooling fan to dissipate heat. It also includes an optical isolation device, which further increases operational safety.

The application field of TT104N12K OF HPSA1 includes applications in electric motor control, machine control, and power supply. It can also be used in static frequency converters, electric welding, DC choppers and circuit breakers, AC controllers and adjustable speed drives, frequency converters, and many other control applications.

The working principle of the TT104N12KOFHPSA1 depends on the ability of the thyristor to behave as a switch. When a voltage is applied to the gate of the thyristor, this allows current to flow through the module. If a current greater than the normal operating limit of the thyristor module is supplied, the thyristor will immediately shut off the current flow. This is called anastrophe, and allows the module to shut off the current when an excessive current is detected.

The basic functioning of thyristors depends on the diac and thyristor structure. A diac is a two-terminal semiconductor device, composed of two opposite and mixed-doped semiconductor regions, that acts as a positive temperature coefficient (PTC) switch. When a voltage is applied, it behaves as an open circuit, which then allows current to flow through the module. The thyristor is a three-terminal device composed of a series of layers of silicon and germanium, and is a bidirectional device. When a current is applied to the gate, it is then triggered and permits current to flow, thereby acting as a switch.

By utilizing the interaction between the diac and the thyristor, TT104N12KOFHPSA1 provides a very safe, efficient, and reliable switch for a variety of control applications. It also includes internal cooling fan and an optical isolation device. This makes it ideal for controlling large electric motors, as well as other applications, while also providing extra protection against excessive currents and overloads.

In conclusion, the TT104N12KOFHPSA1 is an excellent choice for controlling large electric motors, as well as for other types of applications. It is a highly efficient and reliable, super-fast recovery diode module, with exceptional power handling, excellent noise immunity, and a built-in cooling system and optical isolation device. It has been tested and proven to be reliable and safe, and is therefore suited for a wide range of application fields.