B39941B4401P810

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Surface acoustic wave (SAW) filters are electronic filters that employ the propagation of acoustic waves on a piezoelectric substrate along with microfabricated interdigital transducers (IDTs) to select frequencies according to the resonance of the filter. SAW filters are widely applied in a variety of applications ranging from consumer products to military and satellite communications. The B39941B4401P810 SAW filter is a high-performance device specifically designed for mobile 3G applications.

SAW filters operate on the principle of sound wave propagation on a piezoelectric substrate. This piezoelectric substrate is composed of two components, a piezoelectric material and a conductive electrode layer on top and bottom of the material. When an electronic signal is applied to the electrodes, a mechanical wave, or sound wave, is created in the piezoelectric material. This wave is then reflected by the electrodes and travels along the substrate. If two separate electrodes are used, the wave will be reflected back and forth many times before it eventually dissipates. When a specific frequency of the wave matches the resonant frequency of the filters, it is amplified and allowed to pass, otherwise, it is attenuated.

The B39941B4401P810 surface acoustic wave filter from Murata is specifically designed for mobile 3G applications. It offers a wide frequency band with a passband of 2.3GHz-2.7GHz and a stopband of 0.54GHz-2.1GHz. The device has a low insertion loss of less than 1.5dB and very high out-of-band rejection of up to 40dB. The B39941B4401P810 also has a low temperature coefficient, making it suitable for use in a wide range of temperature environments. Additionally, the filter operates at a low voltage, reducing power consumption. It also features adjustable filters to fine-tune the frequency response of the device.

The B39941B4401P810 is particularly suitable for mobile 3G applications as it offers high performance in a small package. The filter is housed in a surface-mount package that is only 1.5mm x 0.35mm in size, allowing for tighter placement of components on a PCB. The device is also rated to withstand a high temperature, allowing it to operate in a wide range of temperatures. Finally, the device is RoHS compliant, making it an environmentally friendly and safe product for use in consumer products.

In summary, the B39941B4401P810 SAW filter is a high-performance device designed specifically for mobile 3G applications. It offers a wide frequency band with a low insertion loss and high out-of-band rejection. The filter is small enough for tight placement of components on a PCB and is rated to withstand a wide range of temperatures. The device is also RoHS compliant, making it an environmentally friendly product for use in consumer electronics.

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