The HE389A from BOWEI Integrated Circuits is a RF Amplifier with Frequency 20 to 250 MHz, Gain 29 to 30 dB, Gain Flatness ±0.5 dB, Noise Figure 2 dB, Output Power 20 to 21 dBm. Tags: Drop-In, Power Amplifier. More details for HE389A can be seen below.