Elevating Audio Performance: Advanced Acoustic Design
16/02/2026
At Seltech, acoustic innovation is at the core of what we do. Our team of specialists works alongside you to transform audio requirem…
At Seltech, acoustic innovation is at the core of what we do. Our team of specialists works alongside you to transform audio requirem…
The Bluetooth Modules are designed for ultra-low-power wireless applications. They offer the lowest power consumption in the industry, enabling advanced features while optimizing size and battery life. With a dual-core architecture and 2.4 GHz transceiver, they support Bluetooth Low Energy and custom protocols. They facilitate rapid development with abstraction, drivers, and sample applications.
| Image | Name | Description | Diameter / length [mm] | Width [mm] | Thickness [mm] | Package | RF Protocol | Memory [MB] | Frenquency Band [MHz] | Digital Comm I/O | Min. operating Temp. [°C] | Max. operating Temp. [°C] | MSL level | Product status |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| NCH-RSL20-103WC61-ABG | Chipset RSL20 BLE RADIO WLCSP62 | 3 | 2.42 | 0.25 | WLCSP62 | Bluetooth Low Energy | 587kB Flash memory | 2400-2480 | I²C. SPI. UART | -40 | 85 | 1 | Preferred |
| NCH-RSL10-101Q48-ABG | Chipset RSL10 BLE RADIO QFN48 | 6 | 6.00 | 0.8 | QFN-48 | Bluetooth Low Energy | 384kB Flash memory | 2400-2480 | I²C. SPI. UART | -40 | 85 | 3 | Preferred |
| NCH-RSL10-101S51-ACG | Chipset RSL10 BLE RADIO SIP MODULE | 8 | 6.00 | 1.46 | SIP-51 | Bluetooth v5.0 | 384kB Flash memory | 2400-2480 | I²C. SPI. UART | -40 | 85 | 3 | Preferred |
| NCH-RSL10-101WC51-ABG | Chipset RSL10 BLE RADIO WLCSP51 | 6 | 2.33 | 0.35 | WLCSP-51 | Bluetooth v5.0 | 384kB Flash memory | 2400-2480 | I²C. SPI. UART | -40 | 85 | 1 | Preferred |
The Bluetooth Modules are designed for ultra-low-power wireless applications. They offer the lowest power consumption in the industry, enabling advanced features while optimizing size and battery life. With a dual-core architecture and 2.4 GHz transceiver, they support Bluetooth Low Energy and custom protocols. They facilitate rapid development with abstraction, drivers, and sample applications.
| Image | Name | Description | Diameter / length [mm] | Width [mm] | Thickness [mm] | Package | RF Protocol | Memory [MB] | Frenquency Band [MHz] | Digital Comm I/O | Min. operating Temp. [°C] | Max. operating Temp. [°C] | MSL level | Product status |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
| NCH-RSL20-103WC61-ABG | Chipset RSL20 BLE RADIO WLCSP62 | 3 | 2.42 | 0.25 | WLCSP62 | Bluetooth Low Energy | 587kB Flash memory | 2400-2480 | I²C. SPI. UART | -40 | 85 | 1 | Preferred |
|
| NCH-RSL10-101Q48-ABG | Chipset RSL10 BLE RADIO QFN48 | 6 | 6.00 | 0.8 | QFN-48 | Bluetooth Low Energy | 384kB Flash memory | 2400-2480 | I²C. SPI. UART | -40 | 85 | 3 | Preferred |
|
| NCH-RSL10-101S51-ACG | Chipset RSL10 BLE RADIO SIP MODULE | 8 | 6.00 | 1.46 | SIP-51 | Bluetooth v5.0 | 384kB Flash memory | 2400-2480 | I²C. SPI. UART | -40 | 85 | 3 | Preferred |
|
| NCH-RSL10-101WC51-ABG | Chipset RSL10 BLE RADIO WLCSP51 | 6 | 2.33 | 0.35 | WLCSP-51 | Bluetooth v5.0 | 384kB Flash memory | 2400-2480 | I²C. SPI. UART | -40 | 85 | 1 | Preferred |
At Seltech, acoustic innovation is at the core of what we do. Our team of specialists works alongside you to transform audio requirem…
At Seltech, acoustic innovation is at the core of what we do. Our team of specialists works alongside you to transform audio requirem…
The Bluetooth Modules are designed for ultra-low-power wireless applications. They offer the lowest power consumption in the industry, enabling advanced features while optimizing size and battery life. With a dual-core architecture and 2.4 GHz transceiver, they support Bluetooth Low Energy and custom protocols. They facilitate rapid development with abstraction, drivers, and sample applications.
| Image | Name | Description | Diameter / length [mm] | Width [mm] | Thickness [mm] | Package | RF Protocol | Memory [MB] | Frenquency Band [MHz] | Digital Comm I/O | Min. operating Temp. [°C] | Max. operating Temp. [°C] | MSL level | Product status |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
| NCH-RSL20-103WC61-ABG | Chipset RSL20 BLE RADIO WLCSP62 | 3 | 2.42 | 0.25 | WLCSP62 | Bluetooth Low Energy | 587kB Flash memory | 2400-2480 | I²C. SPI. UART | -40 | 85 | 1 | Preferred |
|
| NCH-RSL10-101Q48-ABG | Chipset RSL10 BLE RADIO QFN48 | 6 | 6.00 | 0.8 | QFN-48 | Bluetooth Low Energy | 384kB Flash memory | 2400-2480 | I²C. SPI. UART | -40 | 85 | 3 | Preferred |
|
| NCH-RSL10-101S51-ACG | Chipset RSL10 BLE RADIO SIP MODULE | 8 | 6.00 | 1.46 | SIP-51 | Bluetooth v5.0 | 384kB Flash memory | 2400-2480 | I²C. SPI. UART | -40 | 85 | 3 | Preferred |
|
| NCH-RSL10-101WC51-ABG | Chipset RSL10 BLE RADIO WLCSP51 | 6 | 2.33 | 0.35 | WLCSP-51 | Bluetooth v5.0 | 384kB Flash memory | 2400-2480 | I²C. SPI. UART | -40 | 85 | 1 | Preferred |