SCA121T-D03 Datasheet SCA121T-D03, SCA121T-D09, SCA121T-D05 | P1-P3

SCA121T Series

Murata Electronics Oy Subject to changes 1/5

www.muratamems.fi Doc.Nr. 82 1274 00 Rev.A

THE SCA121T DUAL AXIS INCLINOMETER MODULES

The SCA121T Series contain 3D-MEMS-based dual axis inclinometer modules that provide instrumentation grade

performance for leveling applications in harsh environment. The measuring axes of the sensing elements are

parallel to the mounting plane and orthogonal to each other. Low temperature dependency, high resolution and

low noise, together a with robust sensing element design, make the SCA121T the ideal choice for leveling

instruments. The Murata inclinometers are insensitive to vibration, due to their over damped sensing elements,

and can withstand mechanical shocks of up to 20000 g.

Features

• Dual axis inclination measurement (X and Y)

• Measuring ranges ±30° and ± 90°

• 0.0025° resolution (10 Hz BW, analog output)

• Sensing element controlled over damped

frequency response (-3dB 18Hz)

• Robust design, high shock durability (20000g)

• High stability over temperature and time

• Single +5 V supply and unregulated 7…35V

supply

• RoHS compliant

Applications

• Platform leveling and stabilization

• 360° vertical orientation measurement

• Leveling instruments

• Construction levels

Data Sheet

SCA121T Series

Murata Electronics Oy Subject to changes 2/5

www.muratamems.fi Doc. nr. 82 1274 00 Rev.A

TABLE OF CONTENTS

The SCA121T Dual Axis Inclinometer modules ..................................................................... 1

Features............................................................................................................................................. 1

Applications ...................................................................................................................................... 1

Table of Contents...................................................................................................................... 2

1 Electrical Specifications ..................................................................................................... 3

1.1 Absolute Maximum Ratings ................................................................................................... 3

1.2 Performance Characteristics .................................................................................................. 3

1.3 Electrical Characteristics ....................................................................................................... 4

1.4 Electrical Connection.............................................................................................................. 4

2 Functional Description ....................................................................................................... 4

2.1 Measuring Directions .............................................................................................................. 4

2.2 Voltage to Angle Conversion ................................................................................................. 4

2.3 Ratiometric Output .................................................................................................................. 5

3 Mechanical Specifications .................................................................................................. 5

3.1 Sensor dimensions ................................................................................................................. 5

SCA121T Series

Murata Electronics Oy Subject to changes 3/5

www.muratamems.fi Doc. nr. 82 1274 00 Rev.A

1 Electrical Specifications

The SCA121T product family comprises three versions, the SCA121T-D03, the SCA121T-D05 and

the SCA121T-D07 that differs in measurement range and supply voltage. The product version

specific performance specifications are listed in the table SCA121T performance characteristics

below.

1.1 Absolute Maximum Ratings

Supply voltage SCA121T-D05(V

)

Supply voltage SCA121T-D03 and D07

Voltage at input / output pins

Storage temperature

Operating temperature

Mechanical shock

Regulated -0.3 V to +5.5V

Unregulated -0.3 V to +35V

-0.3V to 5.3

-55°C to +125°C

-40°C to +125°C

Drop from 1 meter onto a concrete surface

(20000g). Powered or non-powered

1.2 Performance Characteristics

Parameter Condition SCA121T-

D03

SCA121T

-D05

SCA121T

-D07

Units

Measuring range Nominal ±90

±1

±90

±1

±30

±0.5

Supply Voltage

7…35

5±0.25

7…35

Offset (Output at 0g)

2.5

Vdd/2

2.5

Offset calibration error

Max deviation

±1.5

Sensitivity

between 0…1°

V/g

mV/°

Sensitivity calibration

error

±1.5 ±1.5 ±1.5 %

Offset temperature

dependency

-25…85°C

±1

0…70°C

±0.5

Sensitivity temperature

dependency

-25...85°C

-1.5...+0.5

0…70°C

-0.8...+0.3

Typical non-linearity

Measuring range

±0.57

±0.11

Frequency response –3dB LP

8-28 8-28 8-28 Hz

Ratiometric error

Vdd = 4.75...5.25V

±1

Cross-axis sensitivity

Max.

Note 1. The angle output has SIN curve relationship to voltage output

Note 2. The frequency response is determined by the sensing element’s internal gas damping.

P1-P3 P4-P5

SCA121T-D03

Mfr. #:

Buy SCA121T-D03

Manufacturer:

Murata Electronics

Description:

Inclinometers 2-Axis Inclinometer Module

Lifecycle:

New from this manufacturer.

Delivery:

DHL FedEx Ups TNT EMS

Payment:

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SCA121T-D03

SCA121T-D03

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