| Parameters | 
                                                                                                            
                                            | Factory Lead Time | 12 Weeks | 
                                                                            
                                            | Mounting Type | Surface Mount | 
                                                                            
                                            | Package / Case | 41-SMD Module | 
                                                                            
                                            | Surface Mount | YES | 
                                                                            
                                            | Number of Pins | 41 | 
                                                                            
                                            | Operating Temperature | -40°C~85°C | 
                                                                            
                                            | Packaging | Tape & Reel (TR) | 
                                                                            
                                            | Published | 2015 | 
                                                                            
                                            | Part Status | Active | 
                                                                            
                                            | Moisture Sensitivity Level (MSL) | 3  (168 Hours) | 
                                                                            
                                            | Number of Terminations | 33 | 
                                                                            
                                            | HTS Code | 8542.39.00.01 | 
                                                                            
                                            | Voltage - Supply | 2.2V~3.6V | 
                                                                            
                                            | Terminal Position | UNSPECIFIED | 
                                                                            
                                            | Terminal Form | NO LEAD | 
                                                                            
                                            | Number of Functions | 1 | 
                                                                            
                                            | Supply Voltage | 3.3V | 
                                                                            
                                            | Terminal Pitch | 1mm | 
                                                                            
                                            | Frequency | 2.4GHz | 
                                                                            
                                            | JESD-30 Code | R-XXMA-N33 | 
                                                                            
                                            | Memory Size | 128kB Flash 16kB RAM | 
                                                                            
                                            | Data Rate | 3Mbps | 
                                                                            
                                            | Protocol | Bluetooth v4.2 | 
                                                                            
                                            | Telecom IC Type | TELECOM CIRCUIT | 
                                                                            
                                            | Power - Output | 12dBm | 
                                                                            
                                            | RF Family/Standard | Bluetooth | 
                                                                            
                                            | Antenna Type | Integrated, Chip | 
                                                                            
                                            | Sensitivity | -96dBm | 
                                                                            
                                            | Serial Interfaces | I2C, SPI, UART | 
                                                                            
                                            | Current - Receiving | 38.7mA | 
                                                                            
                                            | Current - Transmitting | 92mA | 
                                                                            
                                            | Height Seated (Max) | 2.1mm | 
                                                                            
                                            | Length | 13.9mm | 
                                                                            
                                            | Width | 11mm | 
                                                                            
                                            | RoHS Status | RoHS Compliant | 
                                                                                                    
                            
                         
                                                BT121-A-V2 Overview
This RF Transceiver' mounting method is Surface Mount.For optimal performance, this RF Transceiver module makes use of the Tape & Reel (TR) package.There are 33 terminations in this RF Transceiver module.Transceivers should be operated at -40°C~85°C temperature while operating.There are 41 pins used for high power RF Transceiver operation.The RF Transceiver can supply 2.2V~3.6V voltage.A RF Transceiver Module operates at a frequency of 2.4GHz.
BT121-A-V2 Features
Surface Mount
Tape & Reel (TR) package
33 terminations
41 pins
2.2V~3.6V volts
BT121-A-V2 Applications
There are a lot of Silicon Labs BT121-A-V2 RF Transceiver Modules applications. 
- Transmit
- Low Noise Amplifier (LNA)
- Medical
- Industrial Controls
- Internet Radio
- Wireless Price Tags
- Retail
- Chemical Sensors
- LED Lighting
- Remote Control