Murata Launches Ultra-Low Power AMR Sensors to Boost Battery Life in Healthcare and Wearables Devices

KYOTO, Japan--(BUSINESS WIRE)--Apr 26, 2026--

Murata Manufacturing Co., Ltd. (TOKYO: 6981) (ISIN: JP3914400001) has commenced mass production of its MRMS166R and MRMS168R anisotropic magnetoresistance　(AMR) sensors for healthcare, wearable, and IoT devices. The MRMS166R is the first AMR sensor to combine an average current consumption of 20 nA with operation from a 1.2 V supply, enabling extended battery life in coin cell-powered systems.

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The devices are solid-state magnetic sensors used for switching applications. They detect the presence or absence of a magnetic field and generate an output signal that system logic uses to control functions such as transitions between active and sleep modes. This enables contactless switching without mechanical components, improving reliability, and supporting sealed, miniaturized designs.

Automatic switching between active and sleep modes is widely used in battery-powered devices to reduce standby power consumption and extend operating life. In healthcare, applications include capsule endoscopes and medical patches. Wearable devices, including AR glasses and wireless earbuds, as well as security-related IoT devices, such as door open/close detection systems and smart locks, also use this functionality.

These devices commonly use silver oxide coin batteries (typically 1.55 V), which impose constraints on both available capacity and operating voltage. AMR sensors used as magnetic switches must therefore minimize current consumption while maintaining stable operation at low voltage. Murata addressed these requirements through a redesign of the AMR sensor’s internal circuitry, enabling ultra-low current consumption and reliable operation down to 1.2 V. This significantly reduces battery consumption during standby operation, supporting device operation for more than two years in typical use.

Both devices are housed in a compact package measuring 1.0 × 1.0 × 0.4 mm (0.04 × 0.04 × 0.02 inches), making them suitable for space-constrained designs. The MRMS166R operates over a 1.2 to 3.6 V supply range (1.5 V typ.) with an average current consumption of 20 nA and a maximum current output of 1 mA. The MRMS168R operates over a 2.0 to 3.6 V supply range (3.0 V typ.), with an average current consumption of 80 nA and a maximum output current of 12 mA, providing higher output drive capability for devices requiring increased load current.

Murata will continue to expand its AMR sensor lineup and reduce power consumption to support longer operating times and enhanced functionality in medical, wearable, and IoT devices.

For more details on the AMR sensor lineup, including MRMS166R and MRMS168R, please visit the product page: [ MRMS166R, MRMS168R ]

For inquiries regarding these products, please Contact US.

About Murata

Murata Manufacturing Co., Ltd. is a worldwide leader in the design, manufacture and sale of ceramic-based passive electronic components & solutions, communication modules and power supply modules. Murata is committed to the development of advanced electronic materials and leading edge, multi-functional, high-density modules. The company has employees and manufacturing facilities throughout the world.

[Murata Manufacturing Co., Ltd.] AMR sensor

MONTREAL (AP) — Brandon Hagel scored his NHL playoffs-leading fifth and sixth goals in the third period and the Tampa Bay Lightning rallied to beat the Montreal Canadiens 3-2 on Sunday night in Game 4 to tie the series.

After the first three games in the first-round series went to overtime, Tampa Bay overcame a two-goal deficit to end it in regulation.

Hagel gave the Lightning the lead with 4:43 left, deflecting linemate Nikita Kucherov’s shot past Jakub Dobes. Hagel scored minutes after the Lightning had a 5-on-3 man advantage for 1:11.

“He’s definitely become the straw that stirs our drink,” Lightning coach John Cooper said about Hagel. “Even when we went down 2-0, he stood up and looked both ways and, literally I think, captivated the bench with what he was saying and the message he was delivering."

Tampa Bay held on after the Canadiens got a power-play chance with 2:33 left when Kucherov was called for slashing.

Lightning top-line center Jake Guentzel had a goal and assist, and Kucherov and defenseman J.J. Moser each had two assists. Andrei Vasilevskiy made 16 saves.

Game 5 is Wednesday night in Tampa.

The Lightning rebounded after falling 3-2 on Friday night on defenseman Lane Hutson’s OT slap shot.

Hagel tied it on a power play at 1:40 off a centering pass from Kucherov. The Lightning got the man advantage when Oliver Kapanen was sent off for high-sticking Dominic James.

Before this spring, Hagel had had six career Stanley Cup playoff goals in 37 games with the Lightning across four playoff runs.

“He just does it all,” Guentzel said. “He’s a 200-foot player who plays both sides of the body. Obviously,, he’s the hottest guy in the league right now. He’s done it all year.”

Guentzel cut it to 2-1 with 54 seconds to go the second, beating Dobes from the left side off a feed from Moser.

“That’s a massive goal for us,” Hagel said. "I think going into the third period sometimes down two goals, could be a little bit dicey at times. To get one there, the period ends and you kind of take the crowd out of it right there. Then we get to come onto the ice and just kind of build off that.”

Zachary Bolduc and Cole Caufield scored for Montreal in 3:23 span in the second. Caufield scored for the first time in the series after having 51 goals in the regular season. Dobes made 17 saves.

“We didn’t play a good enough third, I would say,” Montreal coach Martin St. Louis said. “We take three penalties, it’s a veteran team, talented. They’re good at getting us to take penalties.”

Bolduc opened the scoring with 9:54 left in the second. He took a long pass from defenseman Kaiden Guhle, held off Lightning defenseman Darren Raddysh and had the puck deflect in off his body as he cut across the front of the goal.

Caufield struck on a power play with 6:31 left in the period, with Guentzel off for slashing Dobes’ glove. Caufield took Nick Suzuki’s centering pass in the slot and redirected the puck in.

AP NHL: https://apnews.com/hub/nhl

Tampa Bay Lightning's Brandon Hagel (38) celebrates with teammate Nikita Kucherov (86) after scoring against Montreal Canadiens goaltender Jakub Dobes (75) as Canadiens' Juraj Slafkovsky (20) looks on during third period NHL playoff hockey action in Montreal, Sunday, April 26, 2026. (Graham Hughes/The Canadian Press via AP)

Montreal Canadiens goaltender Jakub Dobes (75) and defenceman Mike Matheson (8) look back on their goal after being scored Tampa Bay Lightning's Brandon Hagel (38) during third period of an NHL playoff hockey action in Montreal, Sunday, April 26, 2026. (Graham Hughes/The Canadian Press, via AP)

Tampa Bay Lightning's Jake Guentzel (59) scores against Montreal Canadiens goaltender Jakub Dobes (75) as Canadiens' Jayden Struble (47) defends during the second period of Game 4 in a first-round NHL hockey Stanley Cup playoff series in Montreal, Sunday, April 26, 2026. (Christinne Muschi/The Canadian Press via AP)

Tampa Bay Lightning's Jake Guentzel (59) crashes into Montreal Canadiens goaltender Jakub Dobes, bottom left, as Canadiens' Nick Suzuki, center, looks for the puck during the second period of Game 4 in a first-round NHL hockey Stanley Cup playoff series in Montreal, Sunday, April 26, 2026. (Christinne Muschi/The Canadian Press via AP)

Tampa Bay Lightning's Jake Guentzel (59) celebrates with teammates J.J. Moser (90) and Anthony Cirelli (71) after scoring against the Montreal Canadiens during the second period of Game 4 in a first-round NHL hockey Stanley Cup playoff series in Montreal, Sunday, April 26, 2026. (Graham Hughes/The Canadian Press via AP)

Tampa Bay Lightning's Max Crozier (24) checks Montreal Canadiens' Juraj Slafkovsky (20) during the second period of Game 4 in a first-round NHL hockey Stanley Cup playoff series in Montreal, Sunday, April 26, 2026. (Christinne Muschi/The Canadian Press via AP)

Tampa Bay Lightning's Brandon Hagel (38) scores past Montreal Canadiens goaltender Jakub Dobes (75) and Mike Matheson (8) during the third period of an NHL playoff hockey game, in Montreal, Sunday, April 26, 2026. (Christinne Muschi/The Canadian Press via AP)