BM71BLES1FC2-0B02AA - BLE 5.0 Module 9x11.5mm | Microchip
MPN: BM71BLES1FC2-0B02AA ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $12.75 | $12.75 |
| 10 | $11.48 | $114.80 |
| 100 | $10.33 | $1,033.00 |
| 500 | $9.3 | $4,650.00 |
| 1,000 | $8.37 | $8,370.00 |
BM71BLES1FC2-0B02AA Overview
A Bluetooth Low Energy module is a complete wireless subsystem that integrates a BLE radio, baseband, protocol stack, and antenna into a single certified unit. In the system hierarchy it sits above discrete RF ICs (which require external stack development and RF design) and below complete host systems, functioning as a serial-to-BLE bridge that frees the host MCU from managing the Bluetooth software stack, timing-critical RF firmware, and regulatory certification.
Key features of the BM71BLES1FC2-0B02AA include Bluetooth Core 5.0 compliance with up to 2.5x throughput improvement over earlier BM70-generation silicon, a completely integrated Bluetooth software stack with configuration via simple ASCII commands over UART, a shielded enclosure for EMI reduction, and an integrated chip antenna on a regulatory-certified variant. Supply voltage spans 1.9 V to 3.6 V, suiting single-cell lithium and 3.3 V logic designs, and the module is rated for industrial temperature environments.
Architecturally, the BM71 embeds Microchip's BLE silicon with flash memory for stack and application script storage. The certified, shielded, antenna-integrated construction means the RF matching network, crystal, and antenna have been tuned by Microchip, removing the most error-prone portion of a wireless design. Developers interact with the module as a wireline replacement: UART data in, BLE data out.
Typical applications include smart-home sensors and actuators, battery-powered IoT beacons, industrial wireless configuration and diagnostic links, and connected health accessories. The industrial temperature rating and shielded package also suit networked lighting controls and commercial building automation.
A key design consideration is layout: although the antenna is integrated, keep at least the datasheet-recommended keep-out area free of copper and plastics above the antenna region to preserve the certified radiation pattern and sensitivity.
This page synthesizes distributor pricing (as of 2026-10-19), drop-in family alternatives, design notes, and long-tail selection guidance not found in the manufacturer datasheet.
Drop-in alternatives for BM71BLES1FC2-0B02AA — 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 BM71BLES1FC2-0B02AA (same form factor and footprint) — differing in Bluetooth Version, Frequency Band, Host Interface, Mounting Type, Operating Temperature.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
BM71BLES1FC2-0B04AA
✅ Drop-In📋 Reference alternative (not in catalog)
BM71BLES1FC1-0B02AA
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
BM70BLES1FC2-0B02AA
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
BM71BLES1FC2-0B02AA Specifications (manufacturer-published)
| Bluetooth Version | Bluetooth 5.0 Low Energy (BLE) |
| Frequency Band | 2.4 GHz (2.402 GHz to 2.480 GHz) |
| Receiver Sensitivity | -90 dBm |
| Supply Voltage Range | 1.9 V to 3.6 V |
| Antenna Type | Integrated chip antenna |
| Shielding | Shielded module |
| Dimensions | 9 x 11.5 x 2.1 mm |
| Operating Temperature | Industrial grade |
| Mounting Type | Surface Mount (SMD) |
| Regulatory Certification | Certified module variant |
| Software Stack | Fully integrated Bluetooth stack |
| Host Interface | UART (ASCII command / transparent data mode) |
| Packaging | Tray |
| RoHS Status | Compliant |
| Product Family | BM71 |
BM71BLES1FC2-0B02AA Interfaces & Connectors
BM71BLES1FC2-0B02AA exposes the following interfaces and connectors as published by the manufacturer: Bluetooth, Power Input. Expansion header pinout, connector pin numbering, and electrical limits are defined in the manufacturer documentation.
| Bluetooth | Bluetooth 5.0 Low Energy (BLE) |
| Power Input | 1.9 V to 3.6 V |
Refer to the manufacturer documentation for the full expansion header pinout and connector pin numbering.
Power & Thermal Characteristics
| Power Input | 1.9 V to 3.6 V |
| Operating Temperature | Industrial grade |
Power input and thermal parameters for BM71BLES1FC2-0B02AA as published by the manufacturer.
Typical Applications
BM71BLES1FC2-0B02AA is suitable for 6 applications: Smart Home Sensors and Actuators, Industrial Wireless Configuration and Diagnostics, Battery-Powered IoT Beacons, Connected Health and Wellness Accessories, Networked Lighting Control, Point-of-Sale and Payment Accessories.
Smart Home Sensors and Actuators
The BM71BLES1FC2-0B02AA fits smart-home nodes such as door/window sensors, smart plugs, and lighting controls because its 1.9 V to 3.6 V supply accepts a single lithium cell across its full discharge curve, and its fully integrated Bluetooth 5.0 stack removes stack maintenance from the host MCU. Used as a UART-to-BLE bridge, the module transmits sensor telemetry in transparent data mode while sleeping between connection events to conserve battery. The integrated chip antenna and shielded 9 x 11.5 x 2.1 mm package preserve sensitivity (-90 dBm) inside plastic enclosures without RF layout effort, and pre-certification shortens time to market for consumer products where regulatory testing is a critical-path item.
Recommended
Industrial Wireless Configuration and Diagnostics
In industrial equipment, the BM71BLES1FC2-0B02AA provides a cable-free configuration and diagnostic port: a technician with a phone connects over BLE 5.0 and reads or writes parameters through the module's ASCII command interface, replacing physical service connectors. The industrial temperature rating and shielded package suit factory-floor environments with electrical noise, where the shielding protects the 2.4 GHz receiver from nearby switching converters and motor drives. Bluetooth 5.0's up to 2.5x throughput improvement over the prior generation shortens log and firmware transfers. Because the module is pre-certified with an integrated antenna, equipment makers avoid adding regional RF certifications for what is only a service interface.
Recommended
Battery-Powered IoT Beacons
For BLE beacon deployments (asset tracking tags, proximity beacons, retail sensors), the BM71BLES1FC2-0B02AA offers long field life: the wide 1.9 V to 3.6 V input tolerates lithium coin-cell voltage sag, and the integrated stack advertises autonomously so the host MCU can remain powered down. The certified integrated antenna delivers repeatable range without per-unit RF tuning, and the -90 dBm sensitivity extends receive margin in dense RF environments. At high volumes the tray packaging supports automated pick-and-place assembly. Pre-certification per radio batch eliminates regulatory retesting when only the enclosure changes between product variants, which is common across beacon SKU families.
Recommended
Connected Health and Wellness Accessories
Wearable and connected-health products (thermometers, pulse oximeters, activity monitors) benefit from the BM71BLES1FC2-0B02AA's compact 9 x 11.5 x 2.1 mm shielded footprint, which fits wrist-worn and handheld enclosures, and its 1.9 V minimum supply that extracts full capacity from single-cell batteries. BLE 5.0's improved throughput streams continuous measurement data to mobile apps with shorter radio-on intervals, conserving battery. The integrated Bluetooth stack supports secure pairing for patient-data privacy, and Microchip's pre-certified antenna solution keeps medical-product certification focused on the sensor electronics rather than the radio. UART transparent mode lets the host MCU concentrate exclusively on measurement algorithms.
Recommended
Networked Lighting Control
Commercial LED lighting systems use BLE mesh-style control networks for dimming, color tuning, and occupancy response. The BM71BLES1FC2-0B02AA supplies the 2.4 GHz radio link with an industrial temperature rating appropriate to luminaire driver enclosures, and its shielded package coexists with switching LED drivers whose EMI would otherwise desensitize an unshielded radio. The 1.9 V to 3.6 V range supports standard 3.3 V control rails derived from mains supplies, and the integrated certified antenna simplifies luminaire certification. Bluetooth 5.0's higher throughput accommodates future firmware updates and scene-command bursts beyond simple on/off control, and UART command mode integrates cleanly with lighting MCUs.
Recommended
Point-of-Sale and Payment Accessories
Mobile POS peripherals such as card-reader dongles, receipt printers, and barcode scanners use the BM71BLES1FC2-0B02AA as a secure wireless data pipe to tablets and phones. BLE 5.0 throughput (up to 2.5x the prior BM70 generation per Microchip) shortens receipt and transaction-record transfers, and the integrated stack's security features support encrypted pairing required in payment workflows. The shielded 9 x 11.5 mm module resists interference from printer motors and charge pumps inside compact accessories, while the certified integrated antenna avoids per-product RF approvals. The 1.9 V to 3.6 V supply suits 3.3 V logic powered from a single-cell rechargeable pack.
Recommended
Recommended Products Summary
Engineering reference data for BM71BLES1FC2-0B02AA — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | BM71BLES1FC2-0B04AA | BM71BLES1FC1-0B02AA | BM70BLES1FC2-0B02AA |
|---|---|---|---|---|
| Package | 9 x 11.5 x 2.1 mm shielded module, integrated antenna | 9 x 11.5 x 2.1 mm shielded module, integrated antenna - same | 9 x 11.5 x 2.1 mm shielded module, integrated antenna - same | 9 x 11.5 x 2.1 mm module, integrated antenna - same footprint |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Bluetooth Version | Bluetooth 5.0 BLE | Bluetooth 5.0 BLE | Bluetooth 5.0 BLE | Bluetooth 4.2-class BLE |
| Supply Voltage | 1.9 V to 3.6 V | 1.9 V to 3.6 V | 1.9 V to 3.6 V | 1.9 V to 3.6 V |
| Relative Throughput | Baseline (BM71, up to 2.5x prior gen per Microchip) | Same as this product | Same BM71 silicon | Up to 2.5x lower than BM71 |
| Antenna | Integrated chip antenna | Integrated chip antenna | Integrated chip antenna | Integrated chip antenna |
Key Differentiators
- Bluetooth 5.0 with up to 2.5x throughput improvement (vs BM70BLES1FC2-0B02AA)
- Fully certified shielded variant with integrated antenna (vs BM71BLES1FC2-0B04AA)
- Complete integrated stack frees the host MCU (vs nRF52832 (SoC alternative))
Design Notes
Even though the chip antenna is integrated and factory-tuned, the PCB must respect the Microchip-recommended antenna keep-out: no copper pours, traces, battery cells, or plastic bosses above or beside the antenna end of the 9 x 11.5 mm module. Placing ground planes or metal enclosures within the keep-out detunes the antenna, reduces the -90 dBm sensitivity margin, and invalidates the modular certification grant. Copy the recommended land pattern and keep-out directly from the Microchip BM71 hardware design checklist rather than re-deriving it.
Power the module from a clean 3.3 V rail within the 1.9 V to 3.6 V range. BLE radios draw pulsed transmit current bursts; a local 10 uF ceramic bulk capacitor plus 0.1 uF high-frequency bypass at the supply pin prevents rail droop during TX bursts that can reset the module or corrupt the UART link. If powered from a lithium coin cell, verify the cell's pulse current capability - radio TX bursts plus host MCU load must stay within the cell's rated pulse current to avoid brown-out resets during advertising.
The 0B02AA suffix encodes firmware configuration and certification region - do not substitute another suffix (e.g., 0B04AA) on a production BOM without confirming equivalent regional grants and firmware behavior in the Microchip BM71 ordering documentation; UART baud rate and advertising configuration can differ between suffixes. Also, the module is certified as shipped: modifying firmware outside Microchip's approved configuration space or altering the antenna environment requires re-certification. Pin the exact suffix in your ERP to prevent purchasing substitutions.
Compliance Information
RoHS compliance per standard Microchip module product listings; the module variant itself is RF regulatory certified (shielded, integrated antenna per Mouser/FindIC listings). REACH and halogen-free status not stated in provided data.
