B03BG2

Base-Isolated IEPE Accelerometer
Uniaxial
Sensitivity: 20mV/g
Range: ±250g
Frequency (5%): 1-8k Hz
Temp Range: -50~120°C
Connector: Side
Mount: 10-32/M5 Female

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SKU: B03BG2 Categories: , , ,
IEPE Base-Isolated Uniaxial Accelerometer · TEDS optional

Overview

The B03BG2 is a uniaxial IEPE accelerometer built on a piezoelectric ceramic shear sensing element with a wide-bandwidth frequency response. With 20 mV/g sensitivity and a ±250 g range it is a higher-sensitivity member of the BXXBG2 family, trading range for lower noise on medium-level vibration measurements. Typical uses include modal and structural testing, component qualification, machinery monitoring and general vibration measurement.

An integrated base-isolated design fully isolates the signal ground from the mounting surface, breaking ground loops on conductive structures. The built-in low-impedance IEPE circuit provides low output noise and an excellent sensitivity temperature response, and the compact HEX 12.7 mm titanium-alloy housing is laser welded to IP68. Available with M5 or 10-32 connector and mounting thread.

20 mV/g
Sensitivity
±250 g
Measurement range
1 – 8 kHz
Frequency range (±5%)
−50 to +120 °C
Operating temperature
7.5 g
Weight
≥ 10⁸ Ω
Base isolation

Why engineers choose the B03BG2

Base-isolated design

An integrated isolation base gives full signal-ground-to-housing isolation (≥ 10⁸ Ω), so the sensor can be stud mounted on conductive structures without ground loops or noise pickup.

Built-in IEPE electronics

Low-impedance IEPE circuit with 2–20 mA constant-current excitation. Spectral noise of 20 µg/√Hz at 100 Hz, 0.0005 g rms broadband resolution and an excellent sensitivity temperature response.

Compact titanium housing

Laser-welded HEX 12.7 × 16 mm titanium housing sealed to IP68, weighing just 7.5 g and rated to 1,200 g rms vibration and 3,000 g pk shock. Side connector with M5 or 10-32 options.

Typical applications

  • Modal and structural analysis
  • General-purpose vibration monitoring
  • Measurements on electrically live or conductive structures
  • Automotive and machinery NVH
  • Multi-channel tests where ground loops must be avoided
  • General uniaxial vibration measurement

What’s in the box

  • B03BG2 base-isolated accelerometer
  • Product Calibration Certificate
  • Mounting screw

Options & accessories

  • TEDS (IEEE 1451.4) for plug-and-play sensor ID – order model 20352B
  • Optional versions: B03BG2-A with 10-32 output connector, B03BG2-E with 10-32 mounting thread
  • Recommended cables K14AB02 / K01AB02 – build yours in the Cable Builder
  • Recommended mounting bases H02B02 / H02B36
Sensitivity
20 mV/g (2 mV/(m/s²))
Measurement range
±250 g
Broadband resolution
0.0005 g rms
Frequency range
1 – 8 kHz (±5%) · 0.5 – 10 kHz (±10%)
Resonance frequency
≥ 40 kHz
Transverse sensitivity
≤ 5%
Excitation
20 – 30 VDC, 2 – 20 mA
Electrical isolation
≥ 10⁸ Ω
Spectral noise (10 / 100 / 1000 Hz)
75 / 20 / 10 µg/√Hz
Shock limit
3,000 g pk
Connector / mounting
M5 side (opt. 10-32) · M5 × 3.7 thread (opt. 10-32)
Size / mounting torque
HEX 12.7 × 16 mm · 3.0 N·m
Sensitivity measured at 160 Hz, 24 VDC, 4 mA. Typical values. Vibration and shock limits per JBT 6822-2018 7.12.1 and refer to the sensor surviving in a non-powered state.

Other models in the BXXBG2 family

Same base-isolated titanium housing, connector and mounting. Choose the sensitivity and range that fit your test levels.

Model Sensitivity Range Frequency (±5%) Noise @ 100 Hz
B01BG2 5 mV/g ±1,000 g 1 – 9 kHz 80 µg/√Hz
B02BG2 10 mV/g ±500 g 1 – 8 kHz 40 µg/√Hz
B03BG2This model 20 mV/g ±250 g 1 – 8 kHz 20 µg/√Hz
B05BG2 50 mV/g ±100 g 1 – 7 kHz 8 µg/√Hz
B06BG2 100 mV/g ±50 g 1 – 7 kHz 4 µg/√Hz
Downloads & next steps
Datasheet, installation guide, and a quote from our global support team. Most models ship within weeks.
Sensitivity (mV/g)

20

Range (g)

250

Broadband Resolution (g rms)

0.0005

Linearity

1%

Frequency Range [5%] (Hz)

1-8k

Min Frequency [5%] (Hz)

1

Max Frequency [5%] (Hz)

8000

Frequency Range [10%] (Hz)

0.5-10k

Resonant Frequency (kHz)

≥40

Discharge Time Constant (s)

≤1

Transverse Sensitivity

≤5%

Excitation Voltage (Vdc)

20-30 Vdc

Constant Current Excitation (mA)

2-20 mA

Output Impedance (Ω)

≤100

Output Bias Voltage (V)

8-12 Vdc

Max Acceleration (g)

1200

Max Shock (g)

3000

Temperature Range (℃)

-50~120

Min Temperature (°C)

-50

Max Temperature (°C)

120

Sensitivity Temperature Coefficient (%/℃)

-0.1

Sealing

Laser Welding IP68

Housing Material

Titanium Alloy

Output Connector

10-32 (Side), M5 (Side)

Mounting

10-32 Female, M5 Female

Weight (grams)

7.5

Sensor Type

Isolated

Output Type

IEPE

Axis

Uniaxial

TEDS Optional

Yes

  • Datasheet (PDF): B03BG2
  • Manual (PDF): Op. & Installation Guide
  • Popular Cables: K14AB02 (10-32), K01AB02 (M5)
  • Popular Mounting Bases: H02B02, H02B36
  • TEDS Model: 20352B