The HE351B from BOWEI Integrated Circuits is a RF Amplifier with Frequency 10 to 400 MHz, Gain 14 to 14.5 dB, Gain Flatness ±0.7 to 1 dB, Noise Figure 7 dB, Output Power 16 to 17 dBm. Tags: Drop-In, Power Amplifier. More details for HE351B can be seen below.