RN214-1.5-02-6M8

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Common Mode Chokes

Common mode chokes are widely used in the electrical industry to attenuate common mode noise (CMN) and consequently to protect humans, other equipment and connected systems from the damaging effects of electrical interference. Among these, the RN214-1.5-02-6M8 is a particular model, developed and distributed by Renesas Electronics, a Japanese manufacturer that specialises in semiconductor and integrated circuit products.

Application Field of the RN214-1.5-02-6M8

The RN214-1.5-02-6M8 model is suitable for reducing common mode noise caused by both high-frequency and low-frequency current paths. It helps to block noise in a narrow frequency range, making it suitable for applications such as:

• Motors: the RN214-1.5-02-6M8 can be used to protect motors from electrical interference, reducing noise and any possible damage.

• Digital electronics: the model helps to reduce interference with digital electronics, providing protection against the potential damages caused by corrosion or wrong connections.

• HVAC systems: one of the most common applications is in HVAC systems, where the RN214-1.5-02-6M8 model can be used to protect sensitive digital electronic components from interference.

• Telecommunication systems: the RN214-1.5-02-6M8 helps to reduce noise in telecommunication systems, improving the system’s reliability and preventing damage caused by interference.

Working Principle

Common mode chokes attenuate CMN by utilizing the principles of inductance and impedance. They are usually composed of two identical components - typically ferrite coils - that are wound in opposite directions. Current flows in both components at the same time, however the direction is different in each one, thus they tend to cancel each other out at certain frequencies.

The RN214-1.5-02-6M8 model is able to reduce noise over a wide range of frequencies due to its construction. The model consists of two independent ferrite coils with air gaps. The gap provides additional inductance to the coil, allowing it to suppress noise at higher frequencies and also helping to reduce the number of spurious harmonics generated at certain frequencies.

The two independent coils also provide some degree of isolation. The coils are placed in the same housing, but separated by an internal insulation that prevents any direct contact between them. This ensures that any possible inductive coupling between them is eliminated, thus reducing the amount of noise generated.

Once connected to the circuit, the RN214-1.5-02-6M8 works by absorbing the noise generated by the circuit. The absorbed noise is then converted into heat, which is then dissipated into the environment. This ensures that the noise does not affect the operation of the circuit or any other components connected to it.

Conclusion

The RN214-1.5-02-6M8 is a powerful and versatile common mode choke. It is capable of reducing common mode noise in a wide range of applications, making it suited for different needs. Its design makes it suitable for both high-frequency and low-frequency applications, while also providing good levels of isolation.

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