SM7X91 – very low pressure sensor 0,29 psi in SOIC
Item number: SM7291 / SM7391 / SM7491 Applications Medical devicesFossil raw materialsHeating/ Air conditioning/ VentilationEnergy
Price on request
Delivery time:Delivery time on request
The SOIC pressure sensors in the SM7X91 series are analog/digital OEM sensors with a new silicon sensing element and modern electronic signal conditioning unit. The integrated digital signal processor permits calibration and temperature compensation during production.
The fully calibrated SM7291/SM7391/SM7491 sensors are supplied in a standard SOIC16 package with two vertical pressure connectors for SMD assembly. Pressure-proportional information in I2C format or as an analog 0.5 – 4.5 V voltage signal acts as an output signal. SM7291/SM7391/SM7491 are autonomous sensors which do not require any additional circuitry.
These SOIC pressure sensors are suitable for reflow soldering and automatic assembly on a PCB.
The sensor is available in a relative SM7291 or differential SM7391 sensor version or as asymmetrical, bidirectional, differential pressure sensor SM7491.
Variants of SM7291/SM7391/SM7491
Features
The fully calibrated SM7291/SM7391/SM7491 sensors are supplied in a standard SOIC16 package with two vertical pressure connectors for SMD assembly. Pressure-proportional information in I2C format or as an analog 0.5 – 4.5 V voltage signal acts as an output signal. SM7291/SM7391/SM7491 are autonomous sensors which do not require any additional circuitry.
These SOIC pressure sensors are suitable for reflow soldering and automatic assembly on a PCB.
The sensor is available in a relative SM7291 or differential SM7391 sensor version or as asymmetrical, bidirectional, differential pressure sensor SM7491.
Variants of SM7291/SM7391/SM7491
- SM7291 relative pressure ranges: 0 – 0.07 / 0.29 psi
- SM7391 differential pressure ranges: P1: -0,29 – -0,07 psi and P2: 0,07 – 0,29 psi (the absolute values of P1 and P2 must be identical. Please see the datasheet.)
- SM7491 bidirectional, asymmetrical pressure ranges: P1: -0.29 – 0 and P2: 0 – 0.29 psi
Features
- Relative, differential and asymmetrical, bidirectional pressure: ±0.29 psi
- Compensated temperature range: -40–105°C
- Supply voltage: 3.3 V/5 V
- Calibrated digital output signal in I²C format
- Calibrated analog voltage signal
- Resolution of 16 bits
- Accuracy: ±1% FS digital, ±1.5% analog
- Digital ASIC signal processor
- SOIC16 package for SMD assembly
- ISO & ISO/TS certified
- RoHS and REACH compliant
Attributes of SM7X91 – very low pressure sensor 0,29 psi in SOIC
May differ from supplier data
Basic data
Accuracy (±) 1 %
Pressure measurement range -20 to 20 mbar
Additional measurement possibilities Temperature
Pressure type Relative pressure Bidirectional differential pressure Differential pressure
Sensor type Pressure transmitter
Product environmental influences (protection class/temperature)
Operating temperature range 0 to 50 °C
Electrical data / Signal connections
Electrical connection Solder connection / solder pads
Housing / Design / Mechanical data / Materials
Housing material (see data sheet for more information) Plastic
Design/housing SO housing
Customized versions
Customized versions Other pressure range Temperature ranges Other accuracies
Signal inputs/outputs and interfaces
Signal output 0.5...4.5 V ratiometric
Interfaces/ protocols I²C bus
Typical applications
Typ. applications Air conditioning and heating Gas industry Respiratory equipment Show all Air flow monitoring Fan monitoring Monitoring of negative pressure to absolute vacuum