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ROHM Semiconductor KX134-1211 — Discrete Semiconductors

KX134-1211 ROHM Accelerometer, ±64g, I²C/SPI, 12-LGA

MPNKX134-1211
End of Life

ROHM Semiconductor KX134-1211 digital accelerometer, triple-axis X/Y/Z, ±8g to ±64g selectable range, I²C/SPI output, 12-LGA (2x2 mm) package, -40°C to +105°C.

$9.02161Ref. price · indicative, final on quote
Packaging12-VFLGA
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

KX134-1211 specifications
ParameterValue
TypeDigital
Output typeI²C, SPI
MountingSurface Mount
Supply voltage1.7V ~ 3.6V
Operating temperature-40°C ~ 105°C
Bandwidth0.39Hz ~ 12.8kHz
AxisX, Y, Z
PackageTape & Reel (TR); Cut Tape (CT)
FeaturesSelectable Scale
Case12-VFLGA
Acceleration range±8g, 16g, 32g, 64g
Sensitivity (LSB (g))4096 (±8g) ~ 512 (±64g)

Product details

±64g acceleration range — industrial and impact sensing

The KX134-1211 is a digital accelerometer from ROHM Semiconductor covering ±8g, ±16g, ±32g, and ±64g full-scale ranges, selectable via register. The top-end ±64g range places it beyond consumer-grade parts (typically ±2g to ±16g) into applications where high-shock events or wide-dynamic-range vibration must be captured without saturating the sensor. Operating temperature spans -40°C to +105°C, so the part survives industrial enclosures, engine-bay heat, and cold-start conditions without a grade downgrade. The 12.8 kHz maximum bandwidth supports vibration analysis up into the ultrasonic range — useful for bearing-fault detection, spindle monitoring, or crash-impact profiling where the event energy sits above 1 kHz.

I²C and SPI — bus-flexible integration

Dual-interface support (I²C and SPI) means the accelerometer can share a 2-wire bus with other sensors or connect to a dedicated SPI port for higher data rates. The 12-LGA (2x2 mm) package (supplier device package 12-LGA) occupies minimal board area. Surface-mount assembly with a standard reflow profile is expected for this LGA form factor. Sensitivity scales with the selected range: 4096 LSB/g at ±8g down to 512 LSB/g at ±64g, so the digital resolution tracks the measurement span.

Frequently asked questions

What acceleration ranges does the KX134-1211 support?

The KX134-1211 supports four selectable full-scale ranges: ±8g, ±16g, ±32g, and ±64g. The sensitivity at ±8g is 4096 LSB/g and at ±64g is 512 LSB/g.

Is the KX134-1211 ROHS compliant?

Yes, the KX134-1211 is ROHS3 compliant (ROHS3 Compliant per the manufacturer listing).

What is the maximum bandwidth of the KX134-1211?

The bandwidth range is 0.39 Hz to 12.8 kHz, settable via the device configuration. The 12.8 kHz upper limit enables vibration analysis well above the audio range.