| Data Interface | PCB, Surface Mount | |
| Product Status | Not For New Designs | |
| Power - Output | 8dBm | |
| Supplier Device Package | 16-TSSOP | |
| Modulation or Protocol | FSK, OOK | |
| Package / Case | 16-TSSOP (0.173", 4.40mm Width) | |
| Voltage - Supply | 2.2V ~ 5.4V | |
| REACH Status | REACH Unaffected | |
| Mfr | Silicon Labs | |
| Data Rate (Max) | 512kbps | |
| Features | - | |
| RoHS Status | ROHS3 Compliant | |
| Moisture Sensitivity Level (MSL) | 3 (168 Hours) | |
| Operating Temperature | -40°C ~ 85°C | |
| Current - Transmitting | 24mA | |
| Applications | General Purpose | |
| ECCN | EAR99 | |
| Mounting Type | Surface Mount | |
| Antenna Connector | PCB, Surface Mount | |
| Series | EZRadio® | |
| Memory Size | - | |
| Frequency | 433MHz, 868MHz, 915MHz | |
| HTSUS | 8542.39.0001 | |
| Package | Tube | |
| Base Product Number | SI4021 |
