会社ブログについて Supply and Recycling of the KXTJ3-1057 Ultra-Compact Three-Axis Digital Accelerometer — for UAV Attitude Control and Vibration Monitoring

Shenzhen Mingjiada Electronics Co., Ltd. maintains a long-term stock of Kionix (now part of ROHM) KXTJ3-1057 ultra-compact three-axis digital accelerometers, whilst also offering high prices for the buyback of related models.

I. KXTJ3-1057 Product Overview

The KXTJ3-1057 is an ultra-compact three-axis digital accelerometer launched by Kionix (ROHM), manufactured using silicon micro-electromechanical systems (MEMS) technology. The sensing element is manufactured using Kionix’s proprietary plasma microfabrication process technology. It measures acceleration by detecting differential capacitance changes caused by applied acceleration, and utilises common-mode cancellation technology to effectively minimise errors caused by process variations, temperature and environmental stress.

The device is housed in an ultra-compact 2×2×0.9 mm LGA-12 package and operates within a voltage range of 1.71 V to 3.6 V. The sensing element is bonded to the device via a glass interlayer, with a second silicon cover wafer, to achieve wafer-level hermetic sealing, ensuring high reliability.

II. Key Advantages of the Product in Drone Applications

Thanks to its ultra-small size, low power consumption and high performance, the KXTJ3-1057 offers significant application advantages in the unmanned aerial vehicle (UAV/drone) sector:

1. Ultra-compact package, saving valuable space on drones

The 2×2×0.9 mm LGA package, with a volume of only approximately 3.6 mm³, is ideally suited for drone flight control boards and IMU modules where space is extremely limited

The surface-mount design allows for easy integration into compact PCB layouts

2. Extremely low power consumption, extending flight time

Standby mode current is only 0.9 μA, whilst low-power mode is just 10 μA

For battery-powered drones, these low-power characteristics effectively extend flight time

Supports high-resolution wake-up functionality, configurable down to a threshold of 3.9 mg, enabling sensitive motion detection and system wake-up whilst in standby mode

3. Wide range of selectable measurement ranges to suit various flight scenarios

Supports four user-configurable measurement ranges: ±2g, ±4g, ±8g and ±16g

±2g is suitable for attitude stabilisation and hover control (detecting minute tilt changes)

±16g is suitable for high-speed manoeuvres, impact detection and vibration monitoring (e.g. during intense flight of FPV drones)

4. High resolution and high sensitivity ensure flight stability

Supports 8-bit, 12-bit and 14-bit resolution modes

In 14-bit mode, sensitivity in the ±2g range reaches up to 1024 LSB/g

High sensitivity enables precise detection of the drone’s attitude changes, providing high-quality acceleration data for flight control algorithms

5. Configurable output data rate for flexible adaptation to different requirements

The output data rate (ODR) ranges from 0.781 Hz to 1600 Hz and can be flexibly configured by the user

A high ODR is suitable for flight control systems requiring rapid response (e.g. attitude estimation, obstacle avoidance)

A low ODR is suitable for low-power data logging scenarios (e.g. flight logs)

6. High shock resistance, suitable for harsh flight environments

Features high shock survivability and excellent temperature stability

Drones are subject to significant shocks during take-off, landing, collisions or violent manoeuvres; this device remains reliable under such conditions

Operating temperature range: –40 °C to +85 °C, suitable for flight missions in various climatic conditions

7. Built-in low-pass filter and self-test function

The embedded low-pass filter effectively suppresses high-frequency vibration noise, enhancing attitude calculation accuracy

The self-test function facilitates rapid verification of sensor functionality during production testing and field maintenance

III. KXTJ3-1057 Key Specifications

Manufacturer: Kionix Inc. (ROHM Semiconductor)

Product type: Three-axis digital accelerometer

Measurement axes: X, Y, Z

Acceleration range: ±2g, ±4g, ±8g, ±16g (user-configurable)

Sensitivity (LSB/g): 1024 (±2g) to 128 (±16g)

Output data rate (ODR): 0.781 Hz to 1600 Hz (user-configurable)

Output resolution: 8-bit / 12-bit / 14-bit (user-selectable)

Output interface: I²C (up to 3.4 MHz)

Operating voltage: 1.71 V to 3.6 V

Standby current: 0.9 μA

Low-power mode current: 10 μA

High-resolution mode current: 155 μA

Zero-point acceleration offset: ±25 mg

Operating temperature: -40°C to +85°C

Package type: 12-LGA (2×2×0.9 mm)

Mounting method: Surface mount / Adhesive mounting

MSL rating: 3 (168 hours)

RoHS compliant: Yes

IV. KXTJ3-1057 Key Features

✅ Ultra-compact package: 2×2×0.9 mm LGA package, maximising PCB space savings

✅ Extremely low power consumption: 0.9 μA in standby / 10 μA in low-power mode / 155 μA in high-resolution mode

✅ Wide range of options: Four configurable ranges: ±2g / ±4g / ±8g / ±16g

✅ Multiple resolution options: Selectable 8-bit / 12-bit / 14-bit modes

✅ Configurable ODR: 0.781 Hz to 1600 Hz, flexibly adapting to different applications

✅ High-speed I²C interface: communication rate up to 3.4 MHz

✅ High-resolution wake-up function: configurable down to a threshold of 3.9 mg

✅ Programmable interrupt control: supports flexible interrupt configuration

✅ Built-in low-pass filter: Effectively suppresses high-frequency noise

✅ Self-test function: Facilitates functional verification

✅ High shock resistance: Suitable for harsh environments

✅ Excellent temperature stability: Stable performance at elevated temperatures

✅ Improved reflow soldering performance: Virtually eliminates offset and sensitivity changes after reflow soldering

✅ Complies with RoHS/REACH standards

V. KXTJ3-1057 Typical Application Scenarios in Drones

Flight Control Attitude Estimation: Provides real-time three-axis acceleration data, which is fused with gyroscope data to achieve precise attitude estimation

Hover Stabilisation Control: Detects minute tilt changes to assist the flight controller in maintaining level hover

Vibration Monitoring and Analysis: Monitors motor and propeller vibrations to aid fault diagnosis and predictive maintenance

Impact Detection: Detects collisions or crashes involving the drone, triggering emergency protection mechanisms (such as shutdown protection)

Flight Logs and Black Box: Records acceleration data during flight for post-event analysis

Automatic Take-off/Landing Detection: Detects changes in acceleration at the moment of take-off or landing, triggering corresponding control logic

Motion Wake-up: Automatically wakes the flight control system when motion is detected whilst in standby mode, reducing standby power consumption

VI. Mingjiada Electronics: Stock Availability & High-Value Buy-Back

Shenzhen Mingjiada Electronics Co., Ltd. offers a long-term stock supply of the Kionix (ROHM) KXTJ3-1057 ultra-compact three-axis digital accelerometer:

✅ KXTJ3-1057 — Ultra-compact three-axis digital accelerometer, 2×2 mm LGA package, I²C interface, suitable for drones, wearable devices, consumer electronics, IoT terminals, industrial vibration detection and other fields

We also offer high-price buy-back services:

Mingjiada consistently offers high prices for the buy-back of KXTJ3-1057 and the full range of Kionix/ROHM accelerometers, gyroscopes, inertial sensors and other stock components

Contact Us

Telephone: 86-13410018555

Email: sales@hkmjd.com

Website: www.integrated-ic.com/

Address: Rooms 1239–1241, New Asia Guoli Building, Zhenzhong Road, Futian District, Shenzhen, Guangdong Province

We welcome enquiries and requests for quotations from both new and existing customers! Should you have stock requiring disposal, please feel free to contact Mingjiada Electronics at any time!