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| Part Number | WT41U-A-AI5 | WT41U-A-AI56 | WT41U-A-AI55 | WT41-A-AI5 |
|---|---|---|---|---|
| Manufacturer | Silicon Labs | Silicon Labs | Silicon Labs | Silicon Labs |
| Product Status | Last Time Buy | Last Time Buy | Last Time Buy | Obsolete |
| RF Family/Standard | Bluetooth | Bluetooth | Bluetooth | Bluetooth |
| Protocol | Bluetooth v2.1 +EDR, Class 1 | Bluetooth v2.1 +EDR | Bluetooth v2.1 +EDR | Bluetooth v2.1 +EDR, Class 1 |
| Modulation | - | - | - | - |
| Frequency | - | 2.4GHz | 2.4GHz | 2.4GHz |
| Data Rate | 3Mbps | - | - | 3Mbps |
| Power - Output | 18dBm | 17dBm | 17dBm | 19dBm |
| Sensitivity | -96.5dBm | -94dBm | -94dBm | -92dBm |
| Serial Interfaces | SPI, UART, USB | SPI, UART, USB | UART, USB | PIO, SPI, UART, USB |
| Antenna Type | Integrated, Chip + U.FL | Integrated, Chip | Integrated, Chip | Integrated, Chip |
| Utilized IC / Part | - | - | - | BlueCore4 |
| Memory Size | - | - | - | - |
| Voltage - Supply | 3V ~ 3.6V | 3.3V | 3.3V | 3V ~ 3.6V |
| Current - Receiving | 44mA | 44mA | 44mA | 52.6mA |
| Current - Transmitting | 85mA ~ 136mA | 85mA | 110mA | 51.6mA ~ 120mA |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C | -40°C ~ 85°C | -40°C ~ 85°C |
| Package / Case | Module | Module | Module | Module |
