Si4x55-C EASY-TO-USE, LOW-CURRENT OOK/(G)FSK SUB-.
Si4455-C - LOW-CURRENT OOK/(G)FSK SUB-GHZ TRANSCEIVER / TRANSMITTER AND RECEIVER
Si4455 - LOW-CURRENT OOK/(G)FSK SUB-GHZ TRANSCEIVER
Si4455DY - P-Channel 150-V (D-S) MOSFET