BMI-S-204-C

Series:	--
Packaging:	Bulk
Part Status:	Active
Type:	Cover
Height - Overall:	0.079" (2.00mm)
Length - Overall:	1.278" (32.46mm)
Width - Overall:	1.278" (32.46mm)
Ventilation:	Vent Holes in Pattern
Mounting Type:	Snap Fit

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<h2>Introduction</h2><p>BMI-S-204-C is a specialized shield used in radio frequency (RF) applications. It is designed to protect delicate electronic equipment from external RF sources by blocking radio frequency signals from entering the unit and providing additional shielding from electrical interference. Specifically, the difference between the BMI-S-204-C and standard steel shields is that the former is designed to attenuate signals in the 1MHz to 40GHz frequency range.</p><h2>Application Field</h2><p>The BMI-S-204-C has a variety of applications in the fields of RF protection and RF shielding. For example, it is often used in communications satellites, medical equipment, cell phone base stations, and military systems, where it provides a high level of signal shielding to minimize electromagnetic interference (EMI) between two components or devices.</p><p>BMI-S-204-C shields can also be used in electronic systems, such as automotive electronics, smart phones, and televisions, to shield signal leakage/interference from both inside and outside the device. Similarly, in industrial control systems, they are often used to shield sensitive sensors and data acquisition systems from external interference.</p><h2>Working Principle</h2><p>The working principle behind the BMI-S-204-C is simple. When a radio frequency signal is applied to the shield, the shield acts as a barrier to deflect and absorb the signal, thereby preventing it from entering the protected system.</p><p>The shielding effectiveness of the BMI-S-204-C is dependent on the material and construction of the shield, as well as the location and intensity of the RF signal. For example, a sheet of thin brass or copper may provide adequate shielding for low frequency signals, but for higher frequency signals, such as those in the 1 MHz to 40GHz range, a more robust shield composed of two layers of ferrite material may be required.</p><p>The BMI-S-204-C also offers an additional layer of protection from electrical interference. It uses a highly conductive material that absorbs energy emitted by the interfering signal, converting it into thermal energy. This energy is then dissipated as heat, reducing the amount of interference that can enter the protected system.</p><h2>Conclusion</h2><p>In conclusion, the BMI-S-204-C is a specialized shield designed to provide protection from high frequency RF signals. It works by deflecting and absorbing the RF signal, as well as deflecting electrical interference, thereby protecting the delicate electronic equipment from external sources. It is often used in communications satellites, medical equipment, cell phone base stations, and military systems, where it provides a high level of signal shielding.</p>

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