Sensirion AG(SENS.SW)
Swiss environmental MEMS sensor leader (humidity, flow, pressure, CO₂) for HVAC, appliances, automotive.
manufactured · input
Piezoresistive MEMS pressure transducers and NTC thermistors used in HVAC control boards for refrigerant pressure/temperature sensing, demand defrost control, and system diagnostics. China-based suppliers (MPS, Sensirion JV) dominate low-cost HVAC sensor market; Honeywell, Sensata supply premium sensors.
12
Source countries
7
Companies
1
Goods affected
0
Claims on record
What depends on it
1 essential American goods rely on mems pressure sensors & thermistors somewhere upstream in their supply chain.
Where it comes from
Share of global supply, by country.
| Country | Share of supply |
|---|---|
| CNChina | 50% |
| MXMexico | 23% |
| CHSwitzerland | 20% |
| USUnited States | 18% |
| DEGermany (Federal Republic of Germany) | 12% |
| JPJapan | 8% |
| VNVietnam | 6% |
| GBUnited Kingdom | 6% |
| NLNetherlands | 4% |
| TWTaiwan | 4% |
| CACanada | 4% |
| FRFrance | 4% |
Who makes it
7 companies produce mems pressure sensors & thermistors.
Swiss environmental MEMS sensor leader (humidity, flow, pressure, CO₂) for HVAC, appliances, automotive.
World's largest MEMS sensor maker (Bosch) — pressure, inertial, environmental MEMS; fabs MEMS for many fabless players.
Sensor maker (pressure, temperature, position) for automotive, HVAC/R, and industrial systems.
Connectors and sensors (Measurement Specialties) — MEMS pressure transducers and temperature sensors.
TDK Corporation (Tokyo; TYO: 6762; ~¥2.1T revenue) is a Japanese electronic components manufacturer — historically known for magnetic recording materials, ferrite cores, capacitors, and inductors — that became a major battery company via its 2005 acquisition of ATL (Amperex Technology Limited). TDK's Energy Application Products segment (which includes ATL and TDK's own battery brands) represents approximately 30-35% of TDK group revenue. TDK also manufactures lithium-ion cells under the CeraCharge and TDK brand for small-format applications (IoT sensors, wearables, hearing aids). Combined ATL+TDK represents more than 50% of Apple's annual iPhone battery cell supply. TDK's other major businesses include MEMS sensors (barometric pressure, magnetic), power supplies, and noise suppression components — all supplied to the same consumer electronics OEMs that buy ATL cells.
Major HFO refrigerant producer (Solstice® brand); produces next-generation low-GWP refrigerants as replacement for HFCs under Kigali phasedown. Also makes building automation and cold storage controls.
Murata Manufacturing Co., Ltd. (Nagaokakyo, Kyoto; TSE: 6981; ~¥2T revenue) is a Japanese electronic components manufacturer that acquired Sony Energy Devices Corporation (Sony's battery division) in 2017 for approximately $142M, inheriting Sony's 18650 cylindrical cell manufacturing expertise. Murata's battery division produces lithium-ion cells and battery packs for professional electronics, wearables, and medical devices. Murata's 18650 cells are used in some professional radio battery packs — the same cell format used in laptop batteries and early Tesla vehicles. Murata's battery manufacturing operates from Koriyama (Fukushima Prefecture), inherited from Sony. Despite the Sony heritage, Murata is a smaller player vs. Chinese Li-ion manufacturers in commodity applications but retains premium positioning in high-reliability professional electronics where Sony's quality legacy matters.