New at Mouser: STMicroelectronics ST1VAFE6AX Biosensor for Smart Devices and Wearables

July 1, 2024

Mouser Electronics, Inc., the industry’s leading New Product Introduction (NPI) distributor with the widest selection of semiconductors and electronic components™, is now shipping the ST1VAFE6AX biosensor from STMicroelectronics. The ST1VAFE6AX provides design engineers with next-generation biopotential signal detection and motion tracking for a variety of applications, including heart rate, pulse monitoring, electrocardiogram (ECG) and activity tracking for wearables and portable medical devices.

The ST1VAFE6AX biosensor, available from Mouser, features a vertical analog front end (vAFE) channel to detect biopotential signals and includes a 6-axis inertial measurement unit (IMU) for motion tracking. The ST1VAFE6AX embeds advanced dedicated features and data processing for motion processing like the finite state machine (FSM), sensor fusion low power (SFLP), adaptive self-configuration (ASC), and machine learning core (MLC) with exportable artificial intelligence (AI) features and filters. The device fully synchronizes biopotential and motion sensing for context-aware analysis. The ST1VAFE6AX biosensor’s compact 2.5 × 3.0 × 0.71 mm footprint makes it ideal for space-constrained applications.

Application development with ST1VAFE6AX biosensor is supported by the STEVAL-MKI242A adapter board. The STEVAL-MKI242A board features a pre-mounted ST1VAFE6AX sensor and can be plugged directly into a standard DIL24 socket, enabling fast system prototyping and device evaluation directly within the user’s own application. The adapter provides the complete ST1VAFE6AX pinout and comes ready-to-use with the required decoupling capacitors on the VDD and VDDIO power supply lines. A 3.5 mm jack is also provided on the board for use with an ECG cable. The STEVAL-MKI242A adapter can also be used with the STMicroelectronics STEVAL-MKI109V3 motherboard, the STEVAL-MKBOXPRO programmable wireless box kit, or the X-NUCLEO-IKS4A1 motion MEMS and environmental sensor expansion board.

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As a global authorized distributor, Mouser offers the world’s widest selection of the newest semiconductors and electronic components — in stock and ready to ship. Mouser’s customers can expect 100% certified, genuine products that are fully traceable from each of its manufacturer partners. To help speed customers’ designs, Mouser’s website hosts an extensive library of technical resources, including a Technical Resource Center, along with product data sheets, supplier-specific reference designs, application notes, technical design information, engineering tools and other helpful information.

About Mouser

2024 – Mouser Electronics, a Berkshire Hathaway company, is an authorized semiconductor and electronic component distributor focused on New Product Introductions from its leading manufacturer partners. Serving the global electronic design engineer and buyer community, the global distributor’s website,, is available in multiple languages and currencies and features more than 6.8 million products from over 1,200 manufacturer brands. Mouser offers 28 support locations worldwide to provide best-in-class customer service in local language, currency and time zone. The distributor ships to over 650,000 customers in 223 countries/territories from its 1 million-square-foot, state-of-the-art distribution facilities in the Dallas, Texas, metro area. For more information, visit


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