HM-T HM-T SERIES FSK RX MODULE GENERAL HM-T series.
XS3A1T3157 - Low-ohmic single-pole double-throw analog switch
ft3157 - Low-Ohmic Single-Pole Double-Throw Analog Switch
NX3L1T3157 - Low-ohmic single-pole double-throw analog switch
HM-T315 - FSK RX MODULE