T5070270B4AQ

Application Field

T5070270B4AQ is mainly used in motor control and power supply control, often in household appliances and industrial, commercial, and agricultural applications. The device is suitable for controlling AC and DC loads in both forward and reverse direction. It can also be used in many other aspects, such as light dimming, lamp control, AC switching and battery control; whatever applications requires the switching of electrical power or current.

Outline and Structural Characteristics

The T5070270B4AQ has a package type of TO-252 (IPAK; DPAK), a gate trigger of 3~5V and gate current of 10mA, an on-state voltage of 700V, an off-state current of 0.5mA, an operating temperature range of -40° to +80° C and can withstand surge current up to 4500A. It is composed of a single chip rectifier in which two large electrodes (anode and cathode) are provided and an opening is provided in the centre to accommodate a gate terminal. Its total power dissipation capacity is 250W, while its thermal shutdown pulse is 2.9µs.

Working Principle

As the name suggests, the T5070270B4AQ works on the principle of silicon controlled rectification. It has three terminals, the anode, cathode, and gate. A pulse of current is applied to the gate terminal. This current creates a channel of n-type semiconductor near the anode and a p-type semiconductor near the cathode, capable of conducting electric current between them. This conduction continues until the voltage of the applied current reduces to zero or alternatively, a negative voltage is applied to the gate terminal. This reverse pulse effectively destroys the semiconductor channel, disrupting the current flow and shifting the Thyristor back to its original no-conducting state.

T5070270B4AQ provides reliable control in industrial, commercial and residential applications, with a compact design and simple operation. It can operate range motor, air conditioner and so on, providing a stable, reliable connection, and assisting in the proper regulation of electrical power and current. It is easy to install and can reduce the appliance’s energy usage significantly.

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