WSM-BL241-ADA-008 - BLE 5.0 Module, nRF52832, 3.5dBm | Murata
MPN: WSM-BL241-ADA-008 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $9.5 | $9.50 |
| 10 | $8.55 | $85.50 |
| 100 | $7.6 | $760.00 |
| 500 | $6.85 | $3,425.00 |
| 1,000 | $6.1 | $6,100.00 |
WSM-BL241-ADA-008 Overview
A Bluetooth Low Energy (BLE) module is a self-contained wireless subsystem that bundles a radio transceiver, baseband controller, and host microcontroller (or co-processor interface) into a pre-certified RF package. BLE modules occupy the same hierarchy as Wi-Fi and 802.15.4 modules under the broader wireless connectivity umbrella, enabling engineers to add mobile/cloud-linked wireless control without redesigning the RF chain. The nRF52832 inside this Murata module is an ARM Cortex-M4 SoC, placing the module in the wireless MCU category alongside ESP32 and STM32WB devices.
Key features include 64 KB RAM and 512 KB flash on the integrated ARM Cortex-M4 core, BLE 5.0 long-range and 2 Mbps PHY support, and a regulated 1.7-3.6 V supply range that allows direct connection to coin cells or Li-ion batteries. The module exposes an integrated trace antenna and is pre-tested for FCC/IC modular approval, which significantly reduces end-product certification cost. According to Murata's product documentation, the WSM-BL241-ADA-008 is mechanically and pin-compatible with the MBN52832 family footprint.
Typical applications include BLE beacons and proximity tags, fitness and wearable sensors, industrial sensor nodes, smart-home lighting and HVAC controls, and asset-tracking devices that need reliable battery-powered radio links. The module is also a strong fit for medical peripherals and remote controls where the integrated stack and pre-certified RF reduce firmware burden.
When designing with this module, allocate the antenna keep-out zone per Murata's reference layout and observe the 1.7-3.6 V supply limit; adding a 10 uF bulk plus 0.1 uF bypass capacitor near VDD is recommended. For pin-compatible upgrades within the family, review the Murata MBN52832 platform documentation, which shares the same nRF52832 silicon and module footprint.
This page synthesizes distributor pricing, same-brand Murata alternatives, and design considerations specific to the WSM-BL241-ADA-008 that go beyond the standard datasheet, helping engineers evaluate the module for battery-powered BLE designs.
Drop-in alternatives for WSM-BL241-ADA-008 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with WSM-BL241-ADA-008 (same form factor and footprint) — differing in Antenna, Frequency Band, Mounting Type.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
MBN52832
✅ Drop-In📋 Reference alternative (not in catalog)
WSM-BL241-ADA-008DK
✅ Drop-In✓ In Stock
$10.85 / Unit
View Datasheet →PAN1780
✅ Drop-In📋 Reference alternative (not in catalog)
BL652
✅ Drop-In📋 Reference alternative (not in catalog)
WSM-BL241-ADA-008 Specifications (manufacturer-published)
| Protocol | Bluetooth 5.0 (BLE) |
| Frequency Band | 2.4 GHz ISM (2402-2480 MHz) |
| Integrated IC | Nordic nRF52832 |
| Core | ARM Cortex-M4 |
| RAM | 64 KB |
| Flash | 512 KB |
| Supply Voltage | 1.7 V to 3.6 V |
| TX Output Power | 3.5 dBm |
| RX Sensitivity | -93 dBm at 1 Mbps |
| PHY Data Rate | 1 Mbps (BLE 5.0 2 Mbps / 500 kbps / 125 kbps supported by IC) |
| Antenna | Integrated trace antenna |
| Mounting Type | Surface Mount |
| Module Family | MBN52832 |
| RoHS Status | Compliant |
WSM-BL241-ADA-008 Pin Configuration
| Pin 1 | VDD — Main supply input (1.7-3.6 V) |
| Pin 2 | GND — Ground |
| Pin 3 | RESET — Active-low reset (nRF52832) |
| Pin 4 | SWDIO — ARM debug data |
| Pin 5 | SWDCLK — ARM debug clock |
| Pin 6 | GPIO0 — General-purpose IO / UART RTS |
| Pin 7 | GPIO1 — General-purpose IO / UART TX |
| Pin 8 | GPIO2 — General-purpose IO / UART RX |
| Pin 9 | GPIO3 — General-purpose IO / UART CTS |
| Pin 10 | ANT — Integrated trace antenna (no external connection required) |
| Pin 11 | NC — Not connected (per datasheet) |
| Pin 12 | GND — Ground (thermal pad recommended) |
Power & Thermal Characteristics
| Power Input | 1.7 V to 3.6 V |
Power input and thermal parameters for WSM-BL241-ADA-008 as published by the manufacturer.
Typical Applications
WSM-BL241-ADA-008 is suitable for 6 applications: BLE Beacons and Proximity Tags, Wearable Fitness and Health Sensors, Industrial Wireless Sensor Nodes, Smart Home Lighting and HVAC Controls, Medical Peripheral Devices, BLE Remote Controls and HID Devices.
BLE Beacons and Proximity Tags
The WSM-BL241-ADA-008's 3.5 dBm transmit power and -93 dBm receive sensitivity at 1 Mbps BLE make it a strong fit for battery-powered iBeacon, Eddystone, and asset-tracking tags. The integrated trace antenna and pre-certified FCC/IC modular approval eliminate the most expensive RF design steps, letting engineers ship a beacon product with only an MCU-side BLE advertising stack. The 1.7-3.6 V supply range allows direct connection to a CR2032 coin cell, achieving multi-year battery life when broadcasting at 100-1000 ms intervals. The on-module ARM Cortex-M4 with 512 KB flash can host both the SoftDevice and custom beacon firmware, removing the need for a host MCU on the smallest tags.
Recommended
Wearable Fitness and Health Sensors
Wearable bands require very low average current, a small PCB area, and a pre-certified radio. The WSM-BL241-ADA-008 operates from 1.7-3.6 V, which lets it connect directly to a Li-ion battery without a regulator; the integrated nRF52832 BLE 5.0 radio achieves roughly 5 mA peak TX current at 0 dBm. Its BLE 5.0 long-range PHY (125 kbps, supported by the nRF52832 IC) extends wearable link range to >100 m, useful for gym environments. The 64 KB RAM and 512 KB flash are sufficient for heart-rate, SpO2, and step-count sensor fusion algorithms alongside the BLE stack, eliminating the host processor.
Recommended
Industrial Wireless Sensor Nodes
Industrial sensor nodes need reliable 2.4 GHz wireless, deterministic latency, and modular certification for fast deployment. The WSM-BL241-ADA-008's integrated trace antenna plus pre-tested RF chain meets these needs, and its BLE 5.0 2 Mbps PHY doubles the throughput versus BLE 4.x for vibration and condition-monitoring data. The module's surface-mount footprint supports conformal coating and IP65 enclosures. The integrated nRF52832 Cortex-M4 runs FreeRTOS or Zephyr with the Nordic SoftDevice, providing deterministic BLE connections on factory floors. Murata's WSM/MBN module family is widely accepted in industrial IoT reference designs.
Recommended
Smart Home Lighting and HVAC Controls
Smart lighting and HVAC controllers benefit from BLE 5.0 mesh and the integrated Cortex-M4 that can drive PWM outputs and run a Zigbee/BLE bridge. The WSM-BL241-ADA-008's 3.5 dBm output covers a typical 3-bedroom home, while -93 dBm sensitivity holds up across concrete construction. The 1.7-3.6 V supply allows direct operation from a USB or 3.3 V regulated rail. Pre-certified modular approval means a smart-bulb or thermostat design can ship without a full radio re-test cycle, saving months of compliance work and accelerating time-to-market for consumer smart-home launches.
Recommended
Medical Peripheral Devices
The WSM-BL241-ADA-008 is well suited to medical peripherals such as glucose meters, pulse oximeters, and connected inhalers that demand low power and reliable BLE connectivity to a phone. The integrated nRF52832 SoC supports secure BLE pairing with encryption, while 512 KB flash holds both the SoftDevice and the medical firmware. The 1.7-3.6 V supply supports coin-cell or Li-ion chemistries commonly used in disposable medical patches. Pre-certified modular approval shortens FDA/IEC 62304 paperwork because the radio path is already type-tested, leaving only firmware and system-level verification.
Recommended
BLE Remote Controls and HID Devices
BLE remote controls, presentation clickers, and HID keyboards benefit from the WSM-BL241-ADA-008's low latency and 1 Mbps default PHY. The on-module Cortex-M4 can scan a button matrix, drive an IR LED, and report HID events over BLE GATT without an external MCU. The 3.5 dBm TX and integrated trace antenna provide robust link at couch-to-TV distances, and the 1.7-3.6 V supply supports two AAA cells in series with a small LDO. Pre-certified FCC/IC modular approval is critical for consumer remote control SKUs sold worldwide.
Recommended
Recommended Products Summary
Engineering reference data for WSM-BL241-ADA-008 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | MBN52832 | WSM-BL241-ADA-008DK | PAN1780 | BL652 |
|---|---|---|---|---|---|
| Brand | Murata Manufacturing | Murata Manufacturing | Murata Manufacturing | Panasonic | Laird Connectivity |
| Package | Surface-mount module (integrated trace antenna) | Surface-mount module (same family footprint) | Evaluation board (module on dev carrier) | Surface-mount module (similar footprint) | Surface-mount module (similar footprint) |
| Integrated IC | Nordic nRF52832 | Nordic nRF52832 | Nordic nRF52832 | Nordic nRF52832 | Nordic nRF52832 |
| Bluetooth Version | BLE 5.0 | BLE 5.0 | BLE 5.0 | BLE 5.0 | BLE 5.0 |
| TX Output Power | 3.5 dBm | 3.5 dBm | 3.5 dBm | 3.5 dBm | 4 dBm |
| RX Sensitivity (1 Mbps) | -93 dBm | -93 dBm | -93 dBm | -93 dBm | -95 dBm |
| Supply Voltage | 1.7-3.6 V | 1.7-3.6 V | 1.7-3.6 V | 1.7-3.6 V | 1.7-3.6 V |
| Antenna | Integrated trace | Integrated trace | Integrated trace (on dev board) | Integrated trace | Integrated trace or chip antenna variant |
Key Differentiators
- Pre-certified modular approval cuts end-product FCC/IC certification time (vs Bare nRF52832 IC reference design)
- BLE 5.0 long-range PHY support via nRF52832 (vs BLE 4.x only modules (e.g., older CC2640 designs))
- Wide 1.7-3.6 V supply enables direct battery connection (vs BL652 (1.7-3.6 V also, but typically 3.0 V nominal))
Design Notes
Place a 10 uF bulk capacitor and a 0.1 uF ceramic bypass close to the WSM-BL241-ADA-008 VDD pin. Keep the integrated trace antenna keep-out zone clear of copper, ground planes, and components on all layers for at least 6 mm from the antenna edge. Route GPIO and SWD traces away from the antenna area to avoid detuning. The thermal/ground pad beneath the module must be soldered to a continuous ground pour for both RF return and thermal dissipation.
Supply the module from a clean 1.7-3.6 V rail; ripple above 50 mVpp at 2.4 GHz harmonics can degrade sensitivity by 1-2 dB. Estimated: at 3.3 V VDD and average BLE advertise current, average consumption is roughly 20-30 uA at 1 s advertisement intervals. Use a low-dropout (LDO) regulator such as a TPS7A02 (300 mA, 32 uA Iq) for cleanest noise performance when powering from a higher-voltage source.
Common pitfalls include (1) placing ground copper under the trace antenna, which detunes it and can drop range by 30-50%; (2) using SWD pins as regular GPIO without disabling the debugger, which prevents boot; and (3) expecting full 3.5 dBm at all supply voltages - output power derates below 2.0 V. Always program the nRF52832 SoftDevice bootloader first if you plan to use the Nordic SDK over-the-air update path.
Compliance Information
RoHS and REACH compliant per Murata product page. Module holds FCC and IC modular approval (refer to datasheet for exact IDs). AEC-Q100 not applicable - this is a connectivity module, not an automotive-grade component; for automotive BLE, use AEC-Q100-qualified alternatives.