The HE387E from BOWEI Integrated Circuits is a RF Amplifier with Frequency 20 to 300 MHz, Gain 24 to 25 dB, Gain Flatness ±0.5 dB, Noise Figure 1.5 dB, Output Power 11 to 12 dBm. Tags: Drop-In, Power Amplifier. More details for HE387E can be seen below.