C49D20X2

Series:	--
Packaging:	--
Part Status:	Active
Current - Non Rep. Surge 50, 60Hz (Itsm):	--
SCR Type:	Standard Recovery
Operating Temperature:	--
Mounting Type:	--
Package / Case:	--
Supplier Device Package:	--

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Introduction

A C49D20X2 thyristor is an SCR with a built-in diode and two gates, designed to switch up to 20A at a maximum of 600V. It is a three-terminal, bidirectional surge protective device, suitable for AC/DC applications. It is suitable for use as an EMI filter, as well as for controlling motor speed and for motor starts.

Application Fields

The C49D20X2 is primarily used for EMI noise filtering and motor spikes applications. This is suitable for weak signal filtering and average switching, such as in the areas of industrial automation, motor control and medical systems.This thyristor is also often used in other applications, including:

• Rectifier feedback control;
• Multi-channel window comparators;
• Halogen lamp power control;
• LED lighting;
• Motor control; and
• Battery charger power control.

Working Principle

The working principle of the C49D20X2 thyristor is based on the principles of a silicon-controlled rectifier (SCR). The thyristor contains a PN junction, a control gate and an anode. Initially, the device is in its non-conductive state. When a positive pulse is applied to the control gate, the thyristor turns on, allowing the voltage to flow from the anode to the cathode. When the gate current flows in the opposite direction (reverse-biased), the anode-cathode current decreases and the thyristor returns to its original non-conductive state. The C49D20X2 SCR provides a high current rating, fast response time and various protection features, such as reverse current protection, current limiting and short-circuit protection.

Conclusion

The C49D20X2 thyristor is a powerful and reliable device, suited to a variety of applications that require high current switching. The device is designed to switch up to 20A at a maximum of 600V, and can be used for EMI noise filtering, rectifier feedback control and motor control applications. The thyristor has a controlled gate which enables the device to switch off quickly and efficiently, along with a range of protection features.

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