Q2008VH4

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Thyristors - TRIACs

A TRIAC (Triode for Alternating Current) is a three-terminal semiconductor device that acts as a switch for both AC and DC current and can be used for motor control, power switching, dimming, and other applications. The device is comprised of two independent thyristors in the same package. The Q2008VH4 is a TRIAC developed by Bestrah that combines high temperature, high frequency, and high surge capability.

Application Field

The Q2008VH4 is primarily used in electronic motor, lamp and transformer control applications. It can be used in device control, light dimming, fan speed, and voltage regulation. Additionally, the Q2008VH4 can be used to manage dynamic power switching and transformer operations in automotive, medical, and home appliance applications.

Working Principle

The Q2008VH4 works by allowing current to flow across two terminals; the third terminal is triggering the conductance of the two-terminal device, allowing for both AC and DC voltages and currents. The triggering circuit works by performing a sensitivity analysis to establish the appropriate current loss that must be provided for a given system. This is achieved with a special circuit which is created inside the device and eliminates the need for switching elements.

The Q2008VH4 is capable of operating at a wide range of current ratings; up to 8A AC or 10A DC (depending on temperature). It can switch voltages up to 400V AC or 800V DC. Additionally, it has a maximum repetitive peak off-state voltage of 600V. With its high temperature and high frequency capabilities, the Q2008VH4 is suitable for use in harsh environments.

The Q2008VH4 features low power consumption which makes it suitable for use in low voltage systems. It also has a wide operating temperature range up to 125°C and high surge capability, making it able to handle intense current pulses. Furthermore, the device includes a surge current compensation circuit which allows it to withstand heavy and long duration power pulses.

The Q2008VH4 is an efficient and reliable TRIAC suitable for a variety of applications such as motor control, light dimming, fan speed regulation, and voltage regulation. Its high temperature and high frequency capabilities make it suitable for use in harsh environments and its low power consumption makes it suitable for use in low voltage systems. Additionally, the device includes a surge current compensation circuit which allows it to withstand heavy and long duration power pulses.

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