SSHB21HS-R10300

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Common Mode Chokes are widely applied in the power EMI noise suppression, EMC design and common mode current control. The SSHB21HS-R10300 is an example of such, designed to suppress common mode interference present in different kinds of power supplies.

The SSHB21HS-R10300 consists of a housing with a single core’s winding. The component is designed to suppress EMI and minimize common mode noise. The product has an impedance of 10Ω with an effective working frequency range of 0 to 30MHz. The choke provides protection against radiated emissions, conducted EMI, and high current inrush current. It also provides ESD protection against high voltage spikes and surges which are typical of power supplies and DC to AC inverters.

The SSHB21HS-R10300 operates by combining parasitic capacitance and inductance to resonate and attenuate common mode currents in a device. Due to the bore size, this choke has a higher inductance and lower parasitics than those of the traditional core types. The combination of the inductance and the increased capacitance result in a more efficient way of attenuating common mode noise currents. As the frequency of the signal increases, the impedance of the choke increases, and the current is attenuated thereby reducing the amplitude of the signal.

Additionally, the SSHB21HS-R10300 provides EMI filtering when used in conjunction with additional components. For example, when used in a switching power supply, it can help reduce the amount of EMI generated by the power supply by absorbing the switching noise. The choke can also be used to suppress EMI signals emanating from any external sources. This is done by a process called shielding. Shielding works by reflecting the EMI signals away from the components and thus limiting their range of travel.

The SSHB21HS-R10300 is a very effective component to use when trying to reduce the amount of EMI present in a system. The choke provides good common mode noise suppression, EMI filtering and ESD protection. It can reduce the amount of EMI generated by power supplies, DC to AC inverters and other sources of interference. And when used in combination with additional cable shielding and/or components, it can further reduce the amount of EMI present in the system.

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