C04Y42

The C04Y42 is a charge-mode (PE) three-axis general-purpose accelerometer built on a piezoelectric ceramic shear structure with a wide-bandwidth frequency response, reduced base strain and transverse sensitivity and a low sensitivity temperature response. With 30 pC/g charge sensitivity and a ±1,000 g range on each axis it is a mid-range member of the family, with 30 pC/g and ±1,000 g on all three axes in a 27 mm housing. Typical uses include general triaxial vibration measurement, modal and structural testing, machinery and vehicle vibration and high-temperature monitoring to +250 °C.

With no built-in electronics the sensor works from −50 °C to +250 °C and pairs with any charge amplifier, which sets the low-frequency limit of the system. High-quality ceramics ensure long-term stability and shape-memory alloy fasteners keep the shear structure stable and reliable. The laser-welded titanium-alloy 27 × 27 × 14 mm housing weighs 47 g, each axis has its own calibration hole, a ⌀5.1 mm center through-hole bolts the sensor down at any orientation with the insulated mounting hardware supplied, and three M5 (10-32 opt.) connectors bring out the X, Y and Z channels.

Three axes, one bolt

Simultaneous X, Y and Z measurement from a single 27 × 27 × 14 mm titanium block weighing 47 g. The ⌀5.1 mm center through-hole mounts at any angle with the insulated M4 hardware supplied, per-axis calibration holes make verification straightforward, and three M5 (10-32 opt.) connectors take standard low-noise charge cables.

Charge mode, +250 °C

No internal electronics means nothing to overheat or saturate: the C04Y42 runs continuously at +250 °C and pairs with any charge amplifier or charge-input DAQ, with 1,700 pF capacitance and ≥ 10¹¹ Ω insulation resistance per axis for a clean, stable charge signal.

Shear-mode piezoceramic

Shear structure with reduced base strain and shape-memory alloy fasteners gives a ±5% response from 0.5 Hz to 5 kHz (±10% over 0.3 – 6k Hz) with resonance ≥ 20 kHz, 1% non-linearity and ≤ 5% transverse sensitivity, rated to 3,000 g rms vibration and 5,000 g pk shock.

Key specifications