MH100 Series | Botai Micro's Automotive-grade Altitude Sensor BHO125H10A90-6

The MH series of Botai Micro's altitude sensors uses automotive-grade MEMS sensor chips. These altitude sensors, which are designed for chassis control applications, support output in the form of analog signals, pulse-width modulation (PWM) signals, and PSI5 signals. They have been successfully applied in various types of electronically controlled suspension systems, and there are already multiple form-factor series available.

The core of the self-developed sensor is a Hall-type or magnetoresistive (AMR/TMR/GMR) sensing element fabricated through a magnetoelectric process, paired with a dedicated signal conditioning circuit. This combination offers excellent static and dynamic performance.

The BHO125H10A90 - 6 product outputs analog signals and can measure within a range of 2×125°.

This sensor is primarily used to detect the height of the vehicle's suspension chassis. Each vehicle requires four such sensors. It can also be customized for a 360-degree measurement range and multi-interval angle measurement, which can be applied to sense the vertical movement angle of the wheels and the vibration amplitude of the vehicle body. Other applications include hill-start assist (tilt measurement) and automatic headlight leveling.

#### Product Images of BHO125H10A90 - 6 Altitude Sensor

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Product Technology

- Utilizes the differential horizontal Hall magnetic induction principle and proprietary signal-processing ASIC circuit technology to achieve angle measurement from 0° to 360° (default is 125°, customizable).

- Adopts a non-contact structural design to reduce wear and extend service life.

- Features an integrated self-lubricating universal ball socket design for flexible component matching.

- High sensitivity and strong anti-interference ability (resistant to stray magnetic field interference).

- The product meets the ISO26262 functional safety requirements and has obtained ASIL - B level certification.

- Equipped with overload protection, over-voltage protection, and reverse-polarity protection.

- Operates within a temperature range of -40°C to +125°C.

#### Applications

- Active/adaptive suspension systems.

- Measuring the angle between the vertical wheel and the chassis.

- Automatic headlight leveling.

- Tilt measurement.

- Measuring the opening degree of various valves.

Key Indicators

Product Structure