BMX055 Equivalent & Substitute Parts

Part Overview

The BMX055 is a 9-axis inertial measurement unit (IMU) manufactured by Bosch Sensortec, integrating accelerometer, gyroscope, and magnetometer functionality in a single 20-LGA surface mount package. The device supports both I2C and SPI communication protocols and operates across the industrial temperature range of -40°C to 85°C.

The BMX055 is classified as obsolete product status. Identifying equivalent and substitute parts is necessary for ongoing design support, production continuity, and system maintenance where the original component is no longer available from primary sources.

Substiute Parts

BMX055

Bosch SensortecIn Stock: 6965BMX055 Datasheet

Current PartRFQ

BMI088

Bosch SensortecIn Stock: 3405BMI088 Datasheet

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BMM150

Bosch SensortecIn Stock: 41490BMM150 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the BMX055 are identified based on the following critical parameters that determine functional compatibility:

Primary Substitution Criteria:

• Manufacturer alignment (Bosch Sensortec product family)
• Communication protocol support (I2C and/or SPI)
• Operating temperature range (-40°C to 85°C)
• Surface mount packaging technology
• RoHS3 compliance and MSL rating

Substitution Logic:

The BMX055 integrates three sensor functions: acceleration measurement, angular velocity measurement, and magnetic field measurement. Substitute parts are grouped by the sensor functions they retain:

Group 1 - Partial Functional Substitutes (6-Axis): Parts that provide accelerometer and gyroscope functionality but exclude magnetometer capability. These parts maintain the core motion sensing functions while reducing axis count from 9 to 6.

Group 2 - Complementary Functional Substitutes (Magnetometer Only): Parts that provide dedicated magnetometer functionality. These parts address the magnetic sensing requirement independently and may be used in conjunction with other motion sensors.

Parameter Comparison

Engineering Selection Recommendations

BMI088 Selection Criteria:

The BMI088 is classified as active product status, ensuring continued availability and manufacturing support. This part provides accelerometer and gyroscope functionality with identical communication protocols (I2C, SPI) and operating temperature range as the BMX055. The BMI088 operates in a 16-LGA package, which is smaller than the BMX055 20-LGA package but maintains the same 4.5x3mm footprint dimensions. Selection of the BMI088 is appropriate for applications where 6-axis motion sensing is sufficient and magnetometer functionality is not required, or where magnetometer data can be sourced from a separate component.

BMM150 Selection Criteria:

The BMM150 is classified as last time buy product status, indicating limited future availability. This part provides dedicated magnetometer functionality with 3-axis sensing capability. The BMM150 operates in a 12-WLCSP package with significantly reduced footprint (1.56x1.56mm) compared to the BMX055. Selection of the BMM150 is appropriate for applications requiring independent magnetometer functionality or as a complementary component to accelerometer/gyroscope sensors. The smaller package footprint may enable space-constrained designs.

Compliance Alignment:

All substitute parts maintain ROHS3 compliance, MSL 1 rating, and identical operating temperature specifications, ensuring regulatory and environmental compatibility with the original BMX055 design requirements.

Frequently Asked Questions (FAQ)

Q1: Can the BMI088 directly replace the BMX055 in all applications?

The BMI088 provides accelerometer and gyroscope functionality with identical communication protocols and operating temperature range. However, the BMI088 does not include magnetometer capability. Direct replacement is possible only in applications where magnetometer data is not required. Applications requiring 9-axis sensing must implement magnetometer functionality through a separate component such as the BMM150.

Q2: What is the functional difference between the BMX055 and BMI088?

The BMX055 integrates three sensor types (accelerometer, gyroscope, magnetometer) in a single 20-LGA package for 9-axis sensing. The BMI088 integrates two sensor types (accelerometer, gyroscope) in a 16-LGA package for 6-axis sensing. Both parts support identical communication protocols (I2C, SPI) and operate across the same temperature range.

Q3: Are there package compatibility considerations when substituting the BMI088?

The BMI088 uses a 16-LGA package versus the BMX055 20-LGA package. While both packages maintain the same 4.5x3mm footprint dimensions, the pin count differs (16 pins versus 20 pins). PCB layout and schematic modifications are required to accommodate the different pin configuration.

Q4: What is the product status significance of each substitute part?

The BMI088 is classified as active, indicating ongoing manufacturing and availability. The BMM150 is classified as last time buy, indicating limited future production and availability. For long-term production continuity, the BMI088 is the preferred substitute. The BMM150 should be evaluated for time-limited applications or as a complementary component where magnetometer functionality is required.

Q5: Can the BMM150 be used as a standalone magnetometer replacement?

The BMM150 provides dedicated 3-axis magnetometer functionality with I2C and SPI communication support. It can be used as a standalone magnetometer component or in combination with separate accelerometer and gyroscope sensors to achieve 9-axis sensing equivalent to the BMX055.

Q6: Are all substitute parts RoHS3 compliant?

Yes. The BMX055, BMI088, and BMM150 are all ROHS3 compliant with MSL 1 rating, ensuring compatibility with environmental and regulatory requirements.