RD7127-6-25M0

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Common Mode Chokes form an integral part of Power Electronic Systems for power supply filtering and noise reduction applications, providing isolation in high frequency digital circuits. The RD7127-6-25M0 is a Common Mode Choke designed to provide strong differential and common mode filtering capabilities. This high power choke features impedance up to 1 MHz, a high common-mode inductance, and a high quality factor.

Architecturally, the RD7127-6-25M0 is a surface-mountable integrated filter module with a PA6 plastic package and an array of four common-mode chokes. It has an isolated design with dual opposite-facing pins on each side of the package that allow easy mounting. The module also includes a positive temperature coefficient (PTC) thermistor to protect against over-temperature conditions.

Application

The RD7127-6-25M0 has been exceptionally designed to be used as an in-line differential filter in low-voltage dc-dc converter applications or for switching power supplies. It can also be used in similar applications in high frequency digital circuits. Other applications include power filtering, signal noise reduction, and isolation in data and signal lines. It is also ideal for use in automotive, aviation, and industrial applications.

Working Principle

The RD7127-6-25M0 works by preventing EMI from inducing current in the power line or circuits due to electrostatic or electromagnetic coupling. The device filters out high frequency noise signals above 1MHz before they can cause interference with other components. This is accomplished by utilizing a high common-mode inductance combined with low differential impedance. The integrated thermistor further helps to protect against temperature rise caused by high levels of noise.

The RD7127-6-25M0 has excellent performance characteristics in filtering differential or common mode noise. The integrated PTC thermistor effectively helps protect against inrush currents and other overload conditions. Additionally, the module supports a wide temperature range from -40℃ to 115℃ which makes it suitable for operation in various environmental conditions, including automotive and aerospace conditions.

Conclusion

In conclusion, the RD7127-6-25M0 Common Mode Choke is a highly effective integrated module for filtering differential or common mode noise. It provides strong differential and common mode filtering capabilities, excellent performance characteristics, and supports a wide temperature range. Its integrated PTC thermistor helps protect against inrush currents and other overload conditions. This high power choke is ideal for use in a variety of power supply filtering and noise reduction applications, including automotive, aviation, and industrial applications.

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