TDK’s SmartSonic™ family of ultrasonic Time-of-Flight (ToF) sensors empower IoT product development with contextual awareness, enabling the creation of products that adapt their response upon detecting the presence of the user or the characteristics of the surrounding environment.
TDK SmartSonicTM ultrasonic time-of-flight
Proximity and presence detection for next-generation devices.
Advanced time-of-flight sensing
Featured video
Witness SmartSonic ultrasonic time of flight sensors in action
SmartSonic sensors for every scenario
Explore SmartSonic sensors withing your range
Short range
Fast, ultra‑low‑power proximity and presence sensing for close interactions (cm‑level accuracy) - ideal for touchless controls, hand gestures, and wake‑on‑approach.
Medium range
Reliable 1-5 m object detection and ranging with multipath rejection and multi‑sensor support for appliances, robotics, and room‑scale UX.
Long range
Extended‑reach ranging for security, industrial positioning, and large‑space occupancy (5–20 m+) with high SNR, beamforming, and environmental compensation for consistent performance.
Featured
ICU-10201
The ICU-10201 is a high-performance ultrasonic Time-of-Flight sensor that is ideal for measuring the range of objects between 10cm and 1.2m, and offers a customizable field-of-view of up to 180º. It has a sample rate of 250 samples per second at 0.3 meters, and 130 samples per second at 1 meter. It comes in a 3.5 × 3.5 × 1.26 mm LGA package, and includes an integrated DSP for signal processing.
The ICU-10201 extends battery life via its ultra-low power consumption (17µA – 320µA depending on the number of samples per second), and is highly flexible thanks to a large amount of embedded program and data memory.
CH201
ICU-20201
The ICU-20201 is a high-performance ultrasonic Time-of-Flight sensor that is ideal for measuring the range of objects between 20cm and 5m, and offers a customizable field-of-view of up to 180º. It has a sample rate of 150 samples per second at 1 meter, and 32 samples per second at 5 meters. It comes in a 3.5 × 3.5 × 1.26 mm LGA package, and includes an integrated DSP for signal processing.
The ICU-20201 extends battery life via its ultra-low power consumption (26µA – 300µA depending on the number of samples per second), and is highly flexible thanks to a large amount of embedded program and data memory. It is also available in a module.
ICU-30201
The ICU-30201 is a high-performance ultrasonic Time-of-Flight sensor that is ideal for measuring the range of objects between 30cm and 9.5m, and offers a customizable field-of-view of up to 180º. It has a sample rate of 75 samples per second at 2 meter, and 18 samples per second at 9 meters. It comes in a 5.17 × 2.68 × 0.9 mm LGA package, and includes an integrated DSP for signal processing.
The ICU-30201 extends battery life via its ultra-low power consumption (22µA – 318µA depending on the number of samples per second), and is highly flexible thanks to a large amount of embedded program and data memory. It is also available in a module.
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