BLE121LR-A-M256K

Product Overview

BLE121LR-A-M256K is a wireless connectivity RF module from Silicon Labs. The module adds RF connectivity to a host board while reducing the amount of discrete RF design work required in the end product. In a design or maintenance project, it is a candidate for Bluetooth Low Energy devices, beacons, sensors, wearable electronics, smart-home products and connected accessories.

Before design approval or replacement purchasing, check 2.4 GHz ISM-band operation; confirm the exact channel plan and regional settings in the datasheet, the Module package or case style, module-style construction for host-board assembly, RF layout and certification review. The antenna network, protocol stack, firmware version, power profile, regulatory requirements and lifecycle status should be matched to the original design or target application.

Key Features

• Manufacturer: Silicon Labs
• Part Number: BLE121LR-A-M256K
• Product Category: RF Transceiver
• Device Type: wireless connectivity RF module
• Product Description: wireless connectivity RF module with Bluetooth Low Energy, 2.4 GHz ISM-band operation; confirm the exact channel plan and regional settings in the datasheet, Module, intended for embedded wireless modules, gateways and connected devices
• Wireless Protocol / Band Reference: Bluetooth Low Energy
• Frequency / Band Note: 2.4 GHz ISM-band operation; confirm the exact channel plan and regional settings in the datasheet
• Package / Case: Module
• Mounting / Construction: module-style construction for host-board assembly, RF layout and certification review
• Application Focus: Bluetooth Low Energy devices, beacons, sensors, wearable electronics, smart-home products and connected accessories
• Module Review Note: Check antenna path, regional certification, firmware variant, carrier or protocol support, and module footprint before substitution
• Functional Role: RF transmit/receive communication, wireless data exchange and embedded connectivity

Applications

BLE121LR-A-M256K can be used in IoT nodes, wireless gateways, embedded modules, smart-home products, industrial control systems, sensors, handheld equipment and communication boards.

Because module versions can differ by antenna path, firmware package, regional approval and host interface, confirm the exact orderable code before purchase.

Quality & Sourcing

Antrex Electronics can support BLE121LR-A-M256K sourcing with stock availability checks, RFQ quotation, package confirmation, date code review and shipment arrangement. For faster quotation, buyers can provide target quantity, acceptable date code, packaging preference, target price, required wireless protocol, frequency band, module or firmware version, and end-application information.

For quality control, Antrex Electronics can help arrange product photos, label review, visual inspection and third-party testing support when required. OEMs, EMS providers, wireless module manufacturers, IoT device makers, repair centers and electronic component buyers are welcome to send BOM lists or hard-to-find RF transceiver requirements for sourcing assistance.