| PartNumber | BT740-SC | BT740-SA |
| Description | Bluetooth Modules (802.15.1) Class 1 BT Module 2.1 u.FL connector | Bluetooth Modules (802.15.1) Class 1 BT Module 2.1 internal antenna |
| Manufacturer | Laird Connectivity | Laird Connectivity |
| Product Category | Bluetooth Modules (802.15.1) | Bluetooth Modules (802.15.1) |
| RoHS | Y | Y |
| Class | Class 1 | Class 1 |
| Protocol | Bluetooth 2.1 | Bluetooth 2.1 |
| Data Rate | 2.1 Mb/s | 2.1 Mb/s |
| Operating Supply Voltage | 3.3 V to 5 V | 3.3 V to 5 V |
| Output Power | 18 dBm | 18 dBm |
| Minimum Operating Temperature | - 40 C | - 40 C |
| Maximum Operating Temperature | + 85 C | + 85 C |
| Sensitivity | - 87 dBm | - 87 dBm |
| Interface Type | UART | UART |
| Antenna | External w/U.FL Connector | Integrated |
| Frequency | 2.4 GHz | 2.4 GHz |
| Frequency Range | 2.402 GHz to 2.48 GHz | 2.402 GHz to 2.48 GHz |
| Height | 3 mm | 3 mm |
| Length | 28.71 mm | 28.71 mm |
| Width | 15.29 mm | 15.29 mm |
| Brand | Laird Connectivity | Laird Connectivity |
| Mounting Style | SMD/SMT | SMD/SMT |
| Antenna Connector Type | U.FL | - |
| Moisture Sensitive | Yes | Yes |
| Product Type | Bluetooth Modules | Bluetooth Modules |
| Factory Pack Quantity | 50 | 50 |
| Subcategory | Wireless & RF Modules | Wireless & RF Modules |
| Version | Bluetooth 2.1 | Bluetooth 2.1 |
| Part # Aliases | BT740-SC-02 | BT740-SA-02 |
| Unit Weight | 0.052911 oz | 0.052911 oz |