C440M

Series:	--
Packaging:	Bulk
Part Status:	Active
Voltage - Off State:	600V
Voltage - Gate Trigger (Vgt) (Max):	5V
Current - Gate Trigger (Igt) (Max):	150mA
Voltage - On State (Vtm) (Max):	1.65V
Current - On State (It (AV)) (Max):	900A
Current - On State (It (RMS)) (Max):	1400A
Current - Off State (Max):	35mA
Current - Non Rep. Surge 50, 60Hz (Itsm):	12000A, 13000A
SCR Type:	Standard Recovery
Operating Temperature:	-40°C ~ 125°C
Mounting Type:	Chassis Mount
Package / Case:	B-PUK (TO-200AC)
Supplier Device Package:	Press-Pak (Pow-R-Disc)

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Introduction
Thyristors (SCRs) are one of the most widely used type of semiconductor devices in power control applications. They are often referred to as “gate turn-off thyristors” (GTOs) and operate by controlling the current flow through a controlled circuit by applying an externally controlled gate current. The C440M is a type of thyristor (SCR) designed specifically for use in power control applications. It has a maximum current rating of 440A and a high surge current capability.

Application Field
The C440M thyristor is used for controlling the power in a variety of applications, including: DC and AC motor control, high-power industrial heating, power conditioning and switching, non-inductive loads and loads with harmonics. It is used in applications such as solar power, variable frequency drives (VFDs), elevators, hoists and traction systems which require precise power control.

Working Principle
The C440M thyristor works by using a controlled gate current to switch on and off current in the controlled circuit. When the controlled gate current is applied and the thyristor is triggered, the thyristor turns on and the current in the controlled circuit flows freely. When the controlled gate current is removed and the thyristor is turned off, the current in the controlled circuit is stopped. The C440M thyristor is designed to be able to respond to the gate current very quickly, so it can be used to control current in a very precise manner.

Advantages
The C440M thyristor has many advantages over other types of semiconductor devices. One advantage is its high surge current capability, which allows it to handle large changes in current instantly, with no time lag. It also has a low on-state voltage drop, which increases efficiency. The thyristor also has a fast response time, which makes it ideal for applications that require precise power control. Additionally, the C440M has good thermal cycling characteristics and can withstand large temperature changes without damaging the device.

Disadvantages
Despite its many advantages, there are also some disadvantages to using the C440M thyristor. One is that it can only handle a limited amount of current. Furthermore, due to its high current rating, the thyristor may require an external heating system to ensure that it does not overheat. Another disadvantage is that the device has a limited over-current capability, making it unsuitable for applications that require large currents. Finally, the device can only turn off the current that it has been controlling, and not any other currents in the circuit.

Conclusion
The C440M thyristor is a powerful and reliable device designed specifically for use in power control applications. Its advantages include a high surge current capability, low on-state voltage drop and fast response time. Its disadvantages include a limited current rating and limited over-current capability. Despite these disadvantages, the C440M is still a popular and widely used thyristor in a variety of industrial and consumer applications.

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