te.com 820M1 SINGLE AXIS CONDITION MONITORING ACCELEROMETER SPECIFICATIONS Single Axis Piezoelectric Accelerometer 25g to 6000g Dynamic Ranges Wide Bandwidth to 10,000Hz Superior Resolution to MEMS Devices Circuit Board Mountable, Reflow Solderable Low Cost, Superior Value The Model 820M1 is a low cost, single axis board mountable accelerometer designed for embedded condition monitoring and Features preventive maintenance applications. The piezo-electric Amplified 1.25V Signal Output accelerometer is available in ranges from 25g to 6000g and features a flat frequency response up to >10kHz. The model 3.0 to 5.5Vdc Excitation Voltage 820M1 accelerometer features a stable piezo-ceramic crystal in Hermetically Sealed LCC Package shear mode with low power electronics, sealed in a fully hermetic Piezo-Ceramic Crystal, Shear Mode LCC package. -40 to +125C Operating Range The PE technology incorporated in the 820M1 accelerometer has Small PCB footprint a proven track record for offering the reliable and long-term stable output required for condition monitoring applications. The Applications accelerometer is designed and qualified for machine health monitoring and has superior resolution, dynamic range and Machine Health Monitoring bandwidth compared to MEMS devices. Predictive Maintenance Installations For three axis measurements, TE Connectivity also offers other Embedded Vibration Monitoring accelerometer models with the same outstanding performance Impact & Shock Monitoring specifications. Data Loggers Bearing Installations Security monitoring CLICK HERE CONNECT WITH A SPECIALIST TE CONNECTIVITY SENSORS /// MODEL 820M1 REV-A3 05/2021 Page 1 820M1 SINGLE AXIS ACCELEROMETER (1) ABSOLUTE MAXIMUM RATINGS Parameter Symbol Min Typ Max Unit Notes/Conditions (2) Supply voltage V 1.5 3.3 5.5 V dd Storage temperature T -40 125 C S Shock limit (any axis) gmax 10,000 g ESD -2 +2 kV Human body model (1) Maximum limits the device will withstand without damage (2) With 1.5V-2.5V excitation, full-scale range will be limited. So 2.8V min recommended. OPERATING RANGES & NOISE - ACCELEROMETER (Unless otherwise specified, all parameters are measured at 24C 3.3V applied) Sensitivity Non- Residual Spectral Noise (mg/Hz) Measurement (1) Linearity Noise mV/g Range (g) 10Hz 100Hz 1kHz 10kHz (30%) (%FSO) (mg RMS) 25 50.0 2 2.9 0.15 0.07 0.03 0.02 50 25.0 2 5.9 0.29 0.13 0.05 0.05 100 12.5 2 11.7 0.58 0.27 0.09 0.09 200 5.00 2 23.2 1.16 0.53 0.18 0.18 500 2.50 2 58.8 2.92 1.34 0.52 0.45 6000 0.21 2 705 35.0 16.1 6.24 5.40 (1) 2Hz to 10 kHz ELECTRICAL SPECIFICATIONS (Unless otherwise specified, all parameters are measured at 24C 3.3V applied) Parameters Symbol Min Typ Max Unit Notes/Conditions Excitation voltage V 3.3 5.5 Vdc dd Zero g output voltage V /2 50% of applied voltage dd Average supply current Iavg 62 A Output impedance Rout 100 Warm-up time 1 Sec OPERATING SPECIFICATIONS - ACCELEROMETER (Unless otherwise specified, all parameters are measured at 24C 3.3V applied) Parameter Symbol Min Typ Max Unit Notes/Conditions Full scale output 1.25 V 0.0g output voltage (bias V) V /2 dd Frequency response 6 10k Hz 1db Frequency response 2 15k Hz 3db Resonant frequency 30k Hz Transverse sensitivity 8 % Temperature sensitivity 8 % -40 to 125C Refer to typical curve CS-SENS-0100 NIST Traceable Amplitude Calibration at 80Hz Calibration All parts shipped with calibration data TE CONNECTIVITY SENSORS /// MODEL 820M1 REV-A3 05/2021 Page 2