Swiss firm ST Microelectronics has completed certification of its ST4SIM-300 embedded SIM (eSIM) to the GSMA SGP.32 eSIM IoT specification.

Certification assures interoperability with cellular networks and IoT service platforms worldwide, with remote provisioning and easy switching between network providers.

The ST4SIM-300 is among the first certified eSIMs to support SGP.32, the specification suited to IoT devices with few user-interface capabilities or connectivity constraints such as narrowband-only communication. Features of SGP.32 include bulk provisioning of SIM profiles to simplify managing large fleets of devices, provisioning without SMS, and a lightweight profile template for optimised downloads.

“The arrival of SGP.32 is a huge step towards realising innovative services in areas like healthcare, energy management and logistics, enabled by the data from billions of smart devices connected to the cloud,” said Agostino Vanore, business unit manager at ST Microelectronics (www.st.com). “Our certified eSIM is ready to make this happen, bringing flexibility, ease of use, a powerful ecosystem and state-of-the-art protection with scalable security by design for creators of IoT devices.”

Gloria Trujillo, GSMA eSIM group director, added: “Following GSMA security and certification processes is crucial for ensuring the quality, security and interoperability of IoT products. ST Microelectronics’ GSMA certification for the eSIM ST4SIM-300 is a significant achievement and highlights their commitment to excellence in the IoT space. It positions STM among the first companies capable of providing GSMA eSIM certified options for IoT services.”

Ready for use in mobile asset trackers, smart meters, healthcare devices and others, the module is available in industrial-grade with extended temperature range to create cost-effective and robust solutions to IoT device-management problems. Equipment developers can also use ST4SIM-300 as a secure element thanks to the GSMA IoT Safe applet, and choose from multiple form factors including solderable chip-scale packages and removable cards.

The ST4SIM-300 comes with the support of a complete ecosystem from STM, delivered with trusted partners, that simplifies creating and connecting secure, flexible, cellular-enabled IoT devices. The ecosystem eases access to resources essential for SGP.32 eSIM management including IoT remote manager (eIM), IoT profile assistant (IPA) and bootstrap connectivity.

The ST4SIM-300 (www.st.com/st4sim-300), which has achieved GSMA eSA certification based on the SGP.25 v2.1 protection profile, is also compliant with 3GPP Release 17 for connecting to cellular networks including Cat-M and NB-IoT standards. The module is built using the ST33K1M5M secure microcontroller with cryptography, hardware protection, high-code-density Arm Cortex M35P core and Common Criteria EAL6+ certification. The eSIM is GlobalPlatform compliant with support for RSA and ECC cryptography.

Package options include 2FF, 3FF and 4FF ruggedised plug-in cards, 6 by 5mm DFPN8 (MFF2), and WLCSP24. The industrial-grade variant operates from -40 to +105˚C.