MSI313B Micro Inertial Measurement Unit


  • Miniaturized IMU
  • Low price
  • Low power consumption
  • Full temperature compensation.

MSI313B is a generalized, miniaturized and low-price IMU, which contains three-axis gyroscope and three-axis accelerometer. It applies temperature compensation to the bias and scale of each axis to improve its measurement accuracy.

Categories: ,



Test condition: Normal temp. (23±2) °C

Note: The tests of Angular Random Walk and Bias Instability are under normal temperature.




Range ±450 ° /s Range ±10 g Supply Voltage 5±0.3 V
Bias in full temperature ≤180 ° /h Bias in full temperature ≤6 mg Working Temperature -45 ~ +85 °C
Angular Random Walk ≤0.3 ° /√h Rate random walk ≤0.03 m/s/√h Impact Resistance ≥2000 g
Bias Instability ≤4 ° /h Bias Instability ≤0.04 mg Vibration ≥20 grms
Bias Stability(1σ) ≤15 ° /h Bias Stability(1σ) ≤0.3 mg Size 22.4×22.4×9 mm
Bias Repeatability(1σ) ≤15 ° /h Bias Repeatability(1σ) ≤0.3 mg Weight ≤20 g
Scale Factor Nonlinearity ≤100 ppm Scale Factor Nonlinearity (± 1g) ≤300 ppm Digital Interface UART
Bandwidth (10~250HZ adjustable) 150 Hz Bandwidth (10~250Hz adjustable) 150 Hz Connection Molex 5015680607



  • Inertial navigation: integrated navigation, platform stability
  • Attitude control: UAV
  • Automotive field: driverless, electronic stability program


Dimension and wiring definition



MSI313B Dimension 300x182 - MSI313B Micro Inertial Measurement Unit No. Definition Description
1 VCC(+5V) Power+
2 GND Power ground
3 TXD receive
4 RXD receive
5 PPS Synchronize

(Note: TXD and RXD of UART are based on products)