Silicon Labs BT121-A-V2
- Part No.:
- BT121-A-V2
- Manufacturer:
- Silicon Labs
- Category:
- RF Transceiver Modules and Modems
- Package:
- 41-SMD Module
- Datasheet:
-
BT121-A-V2.pdf
- Description:
- RF TXRX MOD BLUETOOTH CHIP SMD
- Quantity:
- Payment:

- Shipping:

Inventory:1,508
Please send an inquiry. Send us your inquiry, and we will respond immediately.
BT121-A-V2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Silicon Labs
- Series:
- -
- Package/Case:
- 41-SMD Module
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- RF Family/Standard:
- Bluetooth
- Protocol:
- Bluetooth v4.2
- Modulation:
- -
- Frequency:
- 2.4GHz
- Data Rate:
- 3Mbps
- Power - Output:
- 12dBm
- Sensitivity:
- -96dBm
- Serial Interfaces:
- I2C, SPI, UART
- Antenna Type:
- Integrated, Chip
- Utilized IC / Part:
- -
- Memory Size:
- 128kB Flash, 16kB RAM
- Voltage - Supply:
- 2.2V ~ 3.6V
- Current - Receiving:
- 38.7mA
- Current - Transmitting:
- 92mA
- Mounting Type:
- Surface Mount
- Operating Temperature:
- -40°C ~ 85°C
BT121-A-V2 FAQ
1.How can I place an order for BT121-A-V2 through Aetrix?
Please submit a Request for Quotation (RFQ) for BT121-A-V2 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for BT121-A-V2 reliable?
The price and inventory of BT121-A-V2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BT121-A-V2 is usually 5 days.
3.What payment methods are accepted for BT121-A-V2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BT121-A-V2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BT121-A-V2?
BT121-A-V2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BT121-A-V2 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for BT121-A-V2?
For technical support, including BT121-A-V2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BT121-A-V2 requirements.
6.How does Aetrix verify that BT121-A-V2 is sourced from the original manufacturer or authorized distributors?
All BT121-A-V2 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that BT121-A-V2 meets industry standards.
7.What is the process for return or replacement of BT121-A-V2?
All BT121-A-V2 units undergo pre-shipment inspection (PSI). If there is an issue with BT121-A-V2, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The BT121-A-V2 part is unused and in its original packaging.
Return procedure for BT121-A-V2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BT121-A-V2 Tags

-
ESP32-C3FH4
Espressif Systems

-
ESP32-S2FH4
Espressif Systems

-
ESP32-S2FN4R2
Espressif Systems

-
ESP32-C3-MINI-1-N4
Espressif Systems

-
ESP32-C3-WROOM-02-N4
Espressif Systems

-
ESP32-C3-MINI-1U-N4
Espressif Systems

-
ESP32-C3-MINI-1U-H4
Espressif Systems

-
ESP32-C3-WROOM-02U-N4
Espressif Systems

-
ESP32-H2-MINI-1-N4
Espressif Systems

-
ESP32-H2-MINI-1-H4
Espressif Systems
_viewa.jpg)
-
ESP32-MINI-1-N4
Espressif Systems

-
ESP32-S2-MINI-2-N4R2
Espressif Systems
Tech Hub
Amplifier guide covering voltage, current and power amplification, gain, feedback, amplifier classes, audio and RF applications, op-amp circuits, transimpedance amplifiers, datasheet selection and trou…
Machine vision system guide covering components, inspection workflow, camera and lens selection, FOV, pixel resolution, motion blur, strobe lighting, bandwidth, 2D/3D vision, integration, troubleshooti…
Electronic devices and circuits guide covering passive components, semiconductors, analog and digital circuits, circuit theory, practical calculations, troubleshooting, datasheet selection, and learnin…
Oil pressure sensor diagnosis covering symptoms, location, testing, replacement, socket access, common failure cases, and the electronic signal path between the pressure sensor, wiring, ECU and gauge s…
MLCC ESR, impedance and self-resonant frequency in decoupling networks. Covers PDN behavior, frequency response, measurement methods, failure cases and practical capacitor selection for power integrity…
An actuator converts a control signal and energy source into mechanical motion. This guide explains actuator types, working principles, electric and linear actuators, automotive use cases, troubleshoot…
A potentiometer is a three-terminal adjustable resistor used for voltage division, analog control, calibration and signal adjustment. This guide explains wiring, symbols, types, 10k values, digital pot…
An FPGA is reconfigurable digital hardware used for custom logic, parallel processing, low-latency I/O and interface control. This guide explains FPGA meaning, architecture, boards, programming flow, a…
A logic gate is a basic digital circuit that uses Boolean logic to convert binary inputs into one output. This guide explains AND, OR, NOT, NAND, NOR, XOR, truth tables, universal gates, logic ICs and …
A mass air flow sensor, often called a MAF sensor, measures the amount of air entering an engine.
