TDK expands its high-temperature MEMS accelerometer portfolio for energy market applications

TDK Corporation (TSE:6762) announces the extension of its high-performance MEMS inertial sensors portfolio with Tronics AXO315®T1, a high-temperature MEMS accelerometer with ±14 g input range and a digital interface for measurement while drilling (MWD) applications operating up to +175 °C.

With this launch, TDK is taking the next step in temperature robustness, following the release of the Tronics AXO315T0 in June 2025 — its first digital MEMS accelerometer to be qualified for oil and gas applications at temperatures of up to +150 °C. This confirms the company's position as a leading provider of high-reliability MEMS inertial sensors for precise downhole navigation in extreme environments.

The AXO315T1 is powered by TDK’s unique closed-loop architecture, which has already been proven on several Tronics sensors. This architecture enables a 10x improvement in vibration rectification error compared to traditional open-loop MEMS accelerometers. The device is a cost-effective, digital, and low-SWaP (Size, Weight, and Power) alternative to quartz accelerometers for inclination measurement in directional drilling tools operating in harsh temperature and vibration conditions.

With a lifetime of more than 1000 hours at +175 °C, it paves the way for a new generation of MWD tools to meet the accuracy and productivity requirements of complex and unconventional drilling operations.

AXO315T1 sensors and evaluation boards are available for sampling and customer evaluations.