Murata Develops World's Most Precise SM Rotary Position Sensor

Smyrna, GA – Murata Americas releases the SVK3 series, the world’s most precise surface-mount type rotary position sensors. This compact and low profile solution delivers a linearity of ±1%. The sensors also achieve twice the precision of previous products and can withstand temperature ranges required by the automotive market.

In recent years, electronic controls have achieved widespread adoption in the automotive market. As a result, electronic rotary switch devices are now used extensively for feedback control devices in drive motors and as temperature and airflow adjustment switches in automobile air conditioning systems. Further, rotary position sensors are used to detect the rotation state (angle) of motors or switches in these devices. As manufacturers aim to add improved, next generation functionality to their products, demand for finely tuned motor control and switch adjustments is on the upswing.

“Murata developed the SVK3 series in response to this increased demand,” said Geoff Brock, General Manager, New Products & Sensors, Business Development & Product Marketing, Murata Americas. “This solution raises control to a higher level, delivering the world’s most precise SM rotary position sensor.”

Its compact size, low profile (W11 × L12 × T2.1mm) and lightweight (0.4g) dimensions enable the products that incorporate them to be miniaturized. The physical parameters of Murata’s SVK3 rotary position sensors are identical to that of the preceding SV03 series, allowing them to be used as direct replacements without the need for additional design changes or performance degradation. Further, the sensors meet the temperature range (-40 to 125 degrees C) and service life (300,000 cycles) requirements for automotive applications. The SVK3 series rotary sensors also have a resistance of 10k ohms and provide an effective angle of rotary movement of 333.3 degrees.

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