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Our Proven History
Sensata has been supplying the automotive industry for over 30 years. Our portfolio includes coolant level sensors, transmission range sensors, and pressure switches and transducers.

A proven automotive performer, versions of CAS have been in mass production since 1992. CAS is an extension of our recognized world leadership in automotive pressure transducers, sharing much of the proven packaging technology with that highly successful product.

Contact us to learn more about our CAS products.



Product Technology
CAS uses the combined expertise accumulated from several highly regarded Sensata products including:

Thick film, ceramic–based sensing element from the Sensata automotive pressure transducer
Alloy 42 metal beam
Application–specific IC
Controlled expansion alloy (for minimal thermal error) from Sensata thermostat metals
High reliability packaging from the Sensata automotive pressure transducer

Site Updated October 16, 2016

* * * Sensata > Products > Sensors > Automotive Sensors & Switches >

Automotive Capacitive Acceleration Sensing: CAS


Highly reliable sensor design proven with years of production experience
Qualified for underhood, chassis mount, or automotive interior
1g, 2g, and 10g full–scale options available
Permanent calibration after assembly
Low–cost
Operating range: -40°C to 85°C
Sensitivity up to 3 V/g; output rationmetric with supply
Flat response DC to 50Hz (-3dB)
Total error band ±5% Full Scale (includes calibration, linearity, thermal offset, and drift-over-life)
EMC: radiated suspectibility 200V/m up to 500MHz
Automotive fluid compatibility
We are QS9000 certified, delivering <50ppm AIQ

CAS meets the demanding expectations of the automotive industry.

Sensors & Controls CAS is a capacitive–based sensor that provides a linear output voltage directly proportional to acceleration input. Integral signal conditioning electronics incorporate a custom designed integrated circuit and provide an accurate, stable signal over a wide operating temperature range (-40° to 85°C).

Typical Applications

Semi–active suspension systems
Anti–roll chassis control
Vehicle stability control
Anti–lock brake systems
Traction control systems
OBDII rough road detection
Inclination sensing

Application
g-Range
Sensing Direction
Smart Suspension
±10g
Vertical
Smart Suspension
Rough Road Detection (OBDII)
±2g
Vertical
ABS/Traction Control
±1g
Longitudinal
Vehicle Dynamics Control
Active Roll Stabilization
±1g
Lateral
Inclination
±1g
Vertical


Connector Systems

Vendor
Vendor P/N
Notes
AMP
967081 Code "A"
Standard
AMP
967642 Code "B"
Standard
Packard
12064758
Non–Standard
Packard
12059265 or 12092870
Non–Standard
Yazaki
7283-5880-10
Non–Standard


Typical Specifications
Custom specifications available upon request.

Attribute Characteristics
Minimum
Maximum
Input Range
±1.0g
±10.0g
Sensitivity
0.425 V/g
3.0 V/g
Electrical Characteristics
Minimum
Maximum
Supply Voltage
4.5 V
5.5 V
Supply Current
- - -
10.0 mA
Output Current (Typical)
- - -
1.0 mA
Supply Voltage Without Damage
-14 V
16 V
Noise (1g F.S. Device) (Typical)
- - -
0.001g (rms)
EMC Ratiated Susceptibility to 500MHz
200 V/m
- - -
Performance Characteristics
Minimum
Maximum
Calibration Offset Error
-0.05V
0.05V
Linearity (0g offset from endpoint line)
-1.0% F.S.
1.0% F.S.
Cross Axis Sensitivity Error
-3.0%
3.0%
Frequency Response (-3dB point)
25 Hz
100 Hz
Thermal Sensitivity Error (-40° to 85°C)
-4.0%
4.0%
Thermal Offset Error (-40° to 85°C)
-0.100V
0.100V
Operating Temperature
-40°C
85°C
Storage Temperature
-40°C
125°C
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Automotive Capacative Acceleration Sensor

Automotive Capacative Acceleration Sensor

Automotive Capacative Acceleration Sensor

Download Datasheet.
Requires Acrobat Reader.

Contact a specialist.




Typical Product Qualification Tests
Thermal cycling
High temperature endurance
Low temperature endurance
Vibration
Humidity
Corrosion / salt spray

Test specifications available upon request.
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