B82731H2351A030

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Common Mode Chokes, or CMCs, are electronic components used in power electronics and communication systems to control transients and noise on signal and power lines. CMCs are used to filter out high frequency and common mode noise in circuits that require a high level of noise reduction, such as in motor drives, inverters, and pulse-width modulation (PWM) signal circuits.

The B82731H2351A030 is a common mode choke designed by TDK-Lambda for noise suppression in applications up to 600 VAC. It meets ENEC and VDE requirements, providing flammability rating UL 94V-0 and insulation safety class F (temperature class T). The part is suitable for DC/AC noise suppression in high or low power applications such as PWM inverters.

This choke has a wide operating temperature range of -40 to +85 degrees Celsius. The coil consists of a bobbin with a winding made of an electroplated copper wire. It has a rated current of 1.2 A and a rated voltage of 600VAC. This part also provides a high temperature rise capability, with a core temperature rise rating of up to +80°C, which helps to reduce apparent power losses.

The B82731H2351A030 is designed to reduce noise in PWM inverters. The working principle behind the CMC is the capacitive reactance of the core material combined with the inductance (and resistance) of the windings. The capacitive reactance of the core material and the inductance of the windings combine together to create a network which suppresses high frequency and common mode noises in PWM inverters.

The CMC works by storing energy in the core, and then releasing it as the current passes through the windings. This storage of energy acts as a filter to low-frequency noises and reduces the interference of high-frequency components. The CMC also reduces common-mode noise, which is noise generated within the system itself, such as power supply harmonics, which is caused by switching the power flows in the circuit.

In summary, the B82731H2351A030 is a common mode choke designed for 600 VAC applications. It is suitable for DC/AC noise suppression in PWM inverters and helps to reduce high frequency and common mode noise within the system. The working principle of this CMC is based on the capacitive reactance of the core material and the inductance of the windings, which combine together to create a network that suppresses high frequency and common mode noise.

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