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The HE391D from BOWEI Integrated Circuits is a RF Amplifier with Frequency 20 to 200 MHz, Gain 10 to 11 dB, Power Gain 10 to 11 dB, Gain Flatness ±0.5 dB, Noise Figure 4.5 dB. More details for HE391D can be seen below.
6 to 18 GHz, Low Noise Amplifier for Military, Space & Communication Systems
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