RFM119B Sub-1GHz High-Performance RF Transmitter Module
The RFM119B is a highly integrated, high-power Sub-1GHz RF transmitter module operating across an ultrawide 127MHz to 1020MHz frequency range. Supporting 2(G)FSK, (G)MSK, and OOK modulations, it delivers up to +20dBm transmission power with exceptional energy efficiency—consuming just 23mA at +13dBm and 80mA at +20dBm—making it an ideal standalone transmission solution for IoT, security, and industrial telemetry.
127 ~ 1020 MHz
+20 dBm (100mW)
23mA (+13dBm) / 80mA (+20dBm)
1.8V to 3.6V DC
0.5 to 300 Kbps
16 x 16 x 1.9 mm
| Product Model | RFM119B |
| Device Direction / Type | Transmitter (TX Only) Sub-1GHz RF Module |
| Modulation Schemes | 2(G)FSK, (G)MSK, and OOK modulation |
| Hardware Buffer | 64-byte dedicated Tx FIFO with flexible packet format & codec handling |
| Advanced Features | Auto Tx running mode, GPIO/interrupt routing, low-voltage detection, low-frequency timing interrupt wake, and fast frequency hopping |
| Current Efficiency | 23 mA @ +13 dBm output power | 80 mA @ +20 dBm output power |
| Target Applications | Home security and building automation, ISM band data communication, industrial monitoring and control, remote keyless entry (RKE), remote control systems, wireless sensor nodes, labeling readers |
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