The SPF5043Z is a low noise GaAs pHEMT MMIC amplifier rated from 50MHz to 4GHz.
Low noise figure of 0.8dB with a gain figure of 18.2dB at 900MHz
Genuine Qorvo/ RFMD devices supplied.
Supplied in the SMT SOT-343 4 leg package.
Please see the datasheet for more details.