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KXCJ9-1008-PR Equivalent & Substitute Parts
Part Overview
The KXCJ9-1008-PR is a digital accelerometer manufactured by Kionix Inc., designed for motion sensing applications requiring three-axis acceleration measurement. This component features I2C output, adjustable bandwidth, and operates across a supply voltage range of 1.71V to 3.6V. The device is currently classified as obsolete, making identification of functionally compatible alternatives essential for ongoing system support and new design implementations.
Substiute Parts
Key Parameters
| Parameter | KXCJ9-1008-PR |
|---|---|
| Manufacturer | Kionix Inc. |
| Category | Motion Sensors |
| Product Status | Obsolete |
| Type | Digital |
| Axis Configuration | X, Y, Z |
| Acceleration Range | ±2g, 4g, 8g |
| Output Interface | I2C |
| Supply Voltage | 1.71V ~ 3.6V |
| Bandwidth | 0.39Hz ~ 800Hz |
| Operating Temperature | -40°C ~ 85°C |
| Package Type | 10-VFLGA (3x3) |
| RoHS Status | ROHS3 Compliant |
| MSL Rating | 3 (168 Hours) |
Substitute Part Grouping Explanation
Substitution compatibility for the KXCJ9-1008-PR is determined by the following critical parameters:
- Output interface type (I2C protocol compatibility)
- Three-axis acceleration measurement capability (X, Y, Z axes)
- Acceleration range overlap (minimum ±2g, 4g, 8g support)
- Supply voltage compatibility (1.71V ~ 3.6V range)
- Operating temperature range (-40°C ~ 85°C)
- Surface mount packaging format
- RoHS3 compliance and MSL rating consistency
The KXTJ3-1057 qualifies as a direct substitute based on these parameters. Both devices share identical I2C output architecture, three-axis sensing capability, overlapping acceleration ranges, matching supply voltage specifications, and equivalent environmental operating conditions. The KXTJ3-1057 maintains active product status and provides enhanced acceleration range options (±16g capability) while preserving core functional compatibility.
Parameter Comparison
| Parameter | KXCJ9-1008-PR | KXTJ3-1057 | Compatibility Notes |
|---|---|---|---|
| Manufacturer | Kionix Inc. | Kionix Inc. | Same manufacturer |
| Category | Motion Sensors | Motion Sensors | Identical category |
| Type | Digital | Digital | Identical type |
| Axis Configuration | X, Y, Z | X, Y, Z | Identical axis configuration |
| Acceleration Range | ±2g, 4g, 8g | ±2g, 4g, 8g, 16g | KXTJ3-1057 includes extended ±16g range |
| Output Interface | I2C | I2C | Identical protocol |
| Supply Voltage | 1.71V ~ 3.6V | 1.71V ~ 3.6V | Identical range |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C | Identical range |
| Mounting Type | Surface Mount | Surface Mount | Identical mounting |
| Package Type | 10-VFLGA (3x3) | 12-VFLGA (2x2) | Different package footprint |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | Identical compliance |
| MSL Rating | 3 (168 Hours) | 3 (168 Hours) | Identical rating |
| Product Status | Obsolete | Active | KXTJ3-1057 actively manufactured |
Engineering Selection Recommendations
The KXTJ3-1057 is the designated substitute for the obsolete KXCJ9-1008-PR. Selection of this alternative is supported by:
- Active product status ensuring long-term availability and supply chain continuity
- Identical I2C protocol implementation enabling direct firmware compatibility
- Matching supply voltage and operating temperature specifications
- Equivalent RoHS3 compliance and MSL rating
- Selectable scale feature providing acceleration range flexibility
The primary design consideration is package footprint transition from 10-VFLGA (3x3) to 12-VFLGA (2x2). This requires PCB layout modification and component placement adjustment. The KXTJ3-1057 maintains functional equivalence across all critical electrical parameters while offering extended acceleration measurement capability.
Frequently Asked Questions (FAQ)
Q: Can the KXTJ3-1057 directly replace the KXCJ9-1008-PR without firmware changes?
A: The I2C protocol implementation is compatible. However, the KXTJ3-1057 features selectable scale functionality, requiring register configuration to match the original acceleration range settings. Firmware updates may be necessary to optimize scale selection for specific application requirements.
Q: What is the impact of the package footprint change from 10-VFLGA (3x3) to 12-VFLGA (2x2)?
A: The different package dimensions require PCB redesign. The 12-VFLGA (2x2) footprint is smaller, necessitating component placement and routing modifications. Mechanical compatibility with existing mounting structures cannot be assumed.
Q: Are the supply voltage and operating temperature ranges identical?
A: Yes. Both devices operate across 1.71V to 3.6V supply voltage and -40°C to 85°C temperature range, ensuring electrical compatibility in equivalent system designs.
Q: Does the KXTJ3-1057 support the same acceleration ranges as the KXCJ9-1008-PR?
A: The KXTJ3-1057 supports ±2g, 4g, 8g, and 16g ranges. The original ±2g, 4g, 8g ranges are fully supported through selectable scale configuration.
Q: What is the significance of the KXTJ3-1057 being an active product?
A: Active product status indicates ongoing manufacturing and supply availability. This addresses the obsolescence of the KXCJ9-1008-PR and provides long-term component sourcing reliability.
Q: Are RoHS3 compliance and MSL ratings equivalent between these devices?
A: Yes. Both devices maintain ROHS3 compliance and MSL rating 3 (168 Hours), ensuring equivalent environmental and regulatory compatibility.
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