The HE371B from BOWEI Integrated Circuits is a RF Amplifier with Frequency 10 to 500 MHz, Gain 15 to 16 dB, Gain Flatness ±0.5 dB, Noise Figure 1.9 to 2 dB, Output Power 2 dBm. Tags: Drop-In, Power Amplifier. More details for HE371B can be seen below.