TE Connectivity 820M1 Single Axis Accelerometer
The TE Connectivity 820M1 is a low-cost, single-axis, board-mountable piezoelectric accelerometer designed for embedded condition monitoring and preventive maintenance applications. It features a piezo-ceramic crystal in shear mode with low-power electronics, sealed in a hermetic LCC package. The 820M1 offers superior resolution, dynamic range, and bandwidth compared to MEMS devices, making it ideal for machine health monitoring, predictive maintenance, embedded vibration monitoring, impact and shock monitoring, data loggers, bearing installations, and security monitoring. Its amplified analog output and wide bandwidth make it suitable for applications requiring precise vibration and motion measurements.
Product Attributes
- Brand: TE Connectivity
- Model: 820M1
- Origin: TE Connectivity Sensors
- Material: Piezo-Ceramic Crystal, LCC Package (Alumina, Gold Au/Sn Solder)
- Certifications: NIST Traceable Amplitude Calibration at 80Hz (All parts shipped with calibration data)
Technical Specifications
| Parameter | Symbol | Min | Typ | Max | Unit | Notes/Conditions |
|---|---|---|---|---|---|---|
| ABSOLUTE MAXIMUM RATINGS | ||||||
| Supply voltage | Vdd | 1.5 | 3.3 | 5.5 | V | (2) With 1.5V-2.5V excitation, full-scale range will be limited. So 2.8V min recommended. |
| Storage temperature | TS | -40 | 125 | C | ||
| Shock limit (any axis) | gmax | 10,000 | g | |||
| ESD | -2 | +2 | kV | Human body model | ||
| OPERATING RANGES & NOISE - ACCELEROMETER | ||||||
| Measurement Range | 25 | 6000 | g | |||
| Sensitivity | 0.21 | 50.0 | mV/g | (30%) | ||
| Non-Linearity | 2 | %FSO | ||||
| Residual Noise (2Hz to 10 kHz) | 0.15 | 705 | mg RMS | (1) | ||
| Spectral Noise (10Hz) | 0.02 | 35.0 | mg/Hz | |||
| Spectral Noise (100Hz) | 0.03 | 16.1 | mg/Hz | |||
| Spectral Noise (1kHz) | 0.07 | 6.24 | mg/Hz | |||
| Spectral Noise (10kHz) | 0.02 | 5.40 | mg/Hz | |||
| ELECTRICAL SPECIFICATIONS | ||||||
| Excitation voltage | Vdd | 3.3 | 5.5 | Vdc | ||
| Zero g output voltage | Vdd/2 | 50% of applied voltage | ||||
| Average supply current | Iavg | 62 | A | |||
| Output impedance | Rout | 100 | ||||
| Warm-up time | 1 | Sec | ||||
| OPERATING SPECIFICATIONS - ACCELEROMETER | ||||||
| Full scale output | 1.25 | V | ||||
| 0.0g output voltage (bias V) | Vdd/2 | |||||
| Frequency response | 6 | 10k | Hz | 1db | ||
| Frequency response | 2 | 15k | Hz | 3db | ||
| Resonant frequency | 30k | Hz | ||||
| Transverse sensitivity | 8 | % | ||||
| Temperature sensitivity | -8 | +8 | % | -40 to 125C Refer to typical curve | ||
| ENVIRONMENTAL SPECIFICATIONS | ||||||
| Operating temperature | -40 | 125 | C | |||
| Storage temperature | -40 | 125 | C | |||
| Ambient humidity | 0 | 100 | % | |||
| Ingress protection | IP 68 | Hermetic Package | ||||
| Weight | 1.2 | grams | ||||
| CONNECTION TABLE | ||||||
| Pin Number | Definition | |||||
| 1 | N/C | do not connect | ||||
| 2 | GND | |||||
| 3 | X axis output | |||||
| 4 | Vdd | |||||
| 5-10 | N/C | do not connect | ||||
2410301745_TE-Connectivity-20005836-01_C20439447.pdf
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