23-CBSA-2.25X5.0X0.25

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High frequency (RF) shields are an essential component in many electronic devices, often accommodating the need to protect against electric fields, static charges, and unwanted electromagnetic radiation. The 23-CBSA-2.25X5.0X0.25 is one such shield, a composition of two parts which work in tandem to provide an effective barrier against the disruptive RF interference.

The first part is a double-sided, absorbent copper foil shield, designed to resist electrical currents and attenuate both radio frequency (RF) and electric (e-field) signals. This foil acts as a Faraday shield, a metal enclosure which reflects the electromagnetic energy back in the direction it traveled, without allowing any of the energy to penetrate through.

The second part is an absorber sheet, which serves to attenuate any of the signal that is able to penetrate the first shield. The material absorbs the signal, dissipating it into heat and thus preventing further propagation. This sheet should be applied directly on the PCB.

The 23-CBSA-2.25X5.0X0.25 solution is typically used in radio and wireless data communication and other communication technologies whereby radiofrequency signals need to be blocked or insulated from the other components in the circuit. This kind of shielding is also commonly seen in cellular phones, cordless phones, Bluetooth, and Wi-Fi devices, as well as other electronic equipment which depend on RF signals.

Moreover, the distance between the shield and the PCB should be minimal, as the further the distance the less effective the shield is in blocking and absorptive signals. The use of adhesive tape and mounting pegs is also suggested in order to secure the shield’s contact with other components within the circuit.

In summary, the 23-CBSA-2.25X5.0X0.25 is a shielding solution which is designed to reduce intrusive electromagnetic interference which can disrupt or inhibit the performance of an electronic device. The combination of the two shielding components - the coated copper foil and the absorbent sheet - provides a high degree of protection against both RF and e-field signals. This solution is commonly used in the communications industry as well as disctete componete such as cellular phones, Bluetooth and Wi-fi devices.

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