company blog about BOSCH SMA131 Triaxial Acceleration Sensor For Non-Safety Automotive Applications

BOSCH SMA131 Triaxial Acceleration Sensor For Non-Safety Automotive Applications

With the rapid development of automotive electronics technology, sensors are increasingly used in automobiles. the SMA131 3-axis acceleration sensor has become an ideal choice for non-safety automotive applications due to its high performance and small size. Shenzhen Mingjiada Electronics Co., Ltd. as a world-renowned distributor of electronic components, supplies SMA131 sensors in stock to provide efficient and reliable solutions for automotive electronic systems.

BOSCH SMA131 sensor brief introduction:

1，Product Description Of SMA131
SMA131 is a 14-bit triaxial, low-g digital accelerometer for non-safety related wake-up functionality applications. The digital standard serial peripheral interface (SPI) of the SMA131 allows for bi-directional data transmission.

SMA131 detects acceleration in three perpendicular axes (axyz) and allows tilt, motion, vibration or shock sensing regardless of the sensor mounting orientation.

SMA131 has different measurement ranges. The sensor combines our knowledge from consumer and automotive electronics.

Numerous programming options, a low signal noise and very small footprint make the SMA131 a highly versatile and easily applied acceleration sensor for non-safety automotive applications.

2，Specifications Of SMA131
Type：Acceleration sensor
Package：LGA12
Sensing axes：X, Y, Z
Range：±2 g,±4 g,±8 g
Interface：SPI, I²C
Data resolution：14-bit
Sensitivity：4096 LSB/g,2048 LSB/g,1024 LSB/g
Sensitivity tolerance：±2.1%
Supply voltage：1.62 to 3.6 V
Operating temperature：-40°C to 85°C

3，Main Technical Features Of SMA131
High Accuracy Detection: SMA131 supports a measurement range of ±2g to ±8g, 14-bit digital output, and noise density as low as 0.12mg/√Hz.

Low power consumption design: SMA131's operating current is only 130 microamps, supports five power safety modes, and the lowest power consumption can be reduced to 1 microamp, which significantly extends battery life.

Wide temperature range: The SMA131 operates over a temperature range of -40°C to +85°C, adapting to a variety of automotive environments.

4，Product Benefits Of SMA131
Extremely flexible application options
Cost-effective
Small footprint
Low power consumption – even at system level
Billion-fold applied technology (due to CE background)
AEC-Q100 qualification
RoHS compliant

5，Applications Of SMA131
Comfort access：SMA131 supports in-car navigation and infotainment functions to enhance the user experience.

Car key module：SMA131 is used in keyless entry and car key modules to provide accurate motion detection.

Wake-up functionality：SMA131 extends battery life through a low-power mode and is suitable for anti-theft systems for long-term parking.