2N6504G

Thyristors - SCRs often referred to as solid state relays, are three-terminal devices that are widely used in electrical and electronic circuits to control power. The 2N6504G is a type of SCR that is used in a wide range of applications, such as lighting and AC/DC power control. In this article, we will discuss the application fields and working principle of 2N6504G.

The 2N6504G is a high frequency, fast-switching, sensitive gate SCR with a high input current rating. It is commonly used in applications such as motor drives, systems that require high-speed switching, or any other system that requires high reliability. It is used for power switching of AC/DC as well as variable speed drives. It is also used for switching between AC/DC sources, such as a battery and a mains power supply.

The 2N6504G is a medium-current, medium-power device, capable of balancing loads up to 40A. It is also commonly used in AC rectifier osculation applications. It has a maximum on-state current of 75A and a peak repetitive off-state voltage of 800V. This device has a very high surge current capability of up to 1,500A.

In terms of working principle, the 2N6504G SCR can be triggered into conduction by applying a positive gate voltage. It is triggered when the voltage applied to the gate is greater than the threshold voltage VGT. This triggers the SCR and the load current starts to flow in the anode-cathode path. The load current is then monitored and adjusted by adjusting the gate voltage.

The 2N6504G SCR is also designed for self-protection against high surge currents. It can be used in AC applications with a higher number of cycles, typically several hundred. It also has a positive temperature coefficient of the gate voltage and is able to throttle the load current to a lower level when high thermal conditions are encountered.

In summary, the 2N6504G is a high-power, high-current SCR used in a wide range of applications, from motor drives to AC/DC systems. It has a high surge current capability and can be used for power switching in various AC/DC systems. Its working principle involves triggering the SCR by applying a positive gate voltage, and adjusting the load current in order to maintain the desired load current. Finally, the 2N6504G has a self-protection feature that enables it to withstand high surge currents and high temperatures.