MS4525
MS4525 www.meas-spec.com January 2013
1/14
• PCB Mounted Pressure Transducers
• Amplified Ratiometric Analog Output
• Differential, Gage, Absolute, Compound
and Vacuum
• Temperature Compensated
• 3.3 or 5.0 Vdc Supply Voltage
DESCRIPTION
The MS4525 is a small, ceramic based, PCB mounted pressure transducer from Measurement
Specialties. The transducer is built using Measurement Specialties’ proprietary UltraStable™ process and the
latest CMOS sensor conditioning circuitry to create a low cost, high performance transducer designed to meet
the strictest requirements from OEM customers.
The MS4525 is fully calibrated and temperature compensated with a total error band (TEB) of less than
1.0% over the compensated range. The sensor operates from single supply of either 3.3 or 5.0Vdc and requires
a single external component for proper operation.
The rugged ceramic transducer is available in side port, top port, and manifold mount and can measure
absolute, gauge, differential, vacuum or compound pressure from 1 to 150psi. The 1/8” barbed pressure ports
mate securely with 3/32” ID tubing.
FEATURES APPLICATIONS
• PSI Pressure Ranges • Factory Automation, Vacuum Switch
• PCB Mountable • Altitude and Airspeed Measurements
• High Level Analog Output • Medical Instruments
• Barbed Pressure Ports • Leak Detection
STANDARD RANGES (PSI)
Pressure Absolute Gauge Differential Compound Vacuum
1 DS, SS, TP, MM DS, SS, TP
2 DS, SS, TP, MM DS, SS, TP
5 DS, SS, TP, MM DS, SS, TP
15 SS, TP DS, SS, TP, MM DS, MM SS, TP SS, TP, DS
30 SS, TP DS, SS, TP, MM DS, MM SS, TP
50 SS, TP DS, SS, TP, MM DS, MM SS, TP
100 SS, TP DS, SS, TP, MM DS, MM SS, TP
150 SS, TP DS, SS, TP, MM DS, MM SS, TP
See Package Configurations: DS= Dual Side Port, SS= Single Side Port, TP= Top Port, MM= Manifold Mount
Pin Style “L” is only available SS and MM port types
MS4525
MS4525 www.meas-spec.com January 2013
2/14
BLOCK DIAGRAM
ABSOLUTE MAXIMUM RATINGS
Parameter
Conditions
Min
Max
Unit
Notes
Supply Voltage T
A
= 25 °C 2.7 5.5 V
Output Current T
A
= 25°C 3 mA
Load Resistance (R
L
) T
A
= 25°C 10 kΩ
Storage Temperature -40 +125 °C
Humidity T
A
= 25°C 95 %RH Non Condensing
Overpressure T
A
= 25 °C, both Ports Not to Exceed 300 psi
Burst Pressure T
A
= 25 °C, Port 1 psi See Table 1
ESD HBM -4 +4 kV EN 61000-4-2
Solder Temperature 250°C, 5 sec max.
TABLE 1- BURST PRESSURE BY RANGE AND PACKAGE STYLE
Range
DS
TP, SS, MM
Unit
001 20 20 psi
002 20 20 psi
005 15 20 psi
015 45 90 psi
030 90 200 psi
050 150 300 psi
100 300 300 psi
150 300 300 psi
MS4525
MS4525 www.meas-spec.com January 2013
3/14
ENVIRONMENTAL SPECIFICATIONS
Parameter
Conditions
Mechanical Shock Mil Spec 202F, Method 213B, Condition C, 3 Drops
Mechanical Vibration Mil Spec 202F, Method 214A, Condition 1E, 1Hr Each Axis
Thermal Shock 100 Cycles over Storage Temperature, 30 minute dwell
Life 1 Million FS Cycles
MTTF
>10Yrs, 70 ºC, 10 Million Pressure Cycles, 120%FS
Pressure
PERFORMANCE SPECIFICATIONS
Supply Voltage
1
: 5.0V or 3.3 Vdc
Reference Temperature: 25°C (unless otherwise specified)
PARAMETERS MIN TYP MAX UNITS NOTES
Accuracy -0.25 0.25 %Span 2
Total Error Band (TEB) -1.0 1.0 %Span 3,5
Supply Current 3 mA 5
Compensated Temperature -10 +85 ºC 4
Operating Temperature -25 +105 ºC
Response Time 1 mS 5
Weight 3 grams
Media Non-Corrosive Dry Gases Compatible with Ceramic, Silicon, Pyrex,
PPS, RTV, Gold, Aluminum and Epoxy. See “Wetted Material by Port
Designation” chart below.
Notes
1. Proper operation requires an external capacitor placed as shown in Connection Diagram. Output is ratiometric to supply voltage
variations of less than 10%.
2. The maximum deviation from a best fit straight line (BFSL) fitted to the output measured over the pressure range at 25°C. Includes all
errors due to pressure non linearity, hysteresis, and non repeatability.
3. Total error band includes all accuracy errors, thermal errors over the compensated temperature range, and span and offset calibration
tolerances. For ideal sensor output with respect to input pressure, reference Pressure Transfer Function charts below. TEB values are
valid only at the calibrated supply voltage.
4. For errors beyond the compensated temperature range, see Extended Temperature Multiplier chart below.
5. This product can be configured for custom OEM requirements, contact factory for lower power consumption or higher accuracy.
MS4525
MS4525 www.meas-spec.com January 2013
4/14
CONNECTION DIAGRAM
Notes
1. Place 100nF capacitor between Supply and GND to within 2 cm of sensor.
PRESSURE AND TEMPERATURE TRANSFER FUNCTION
Gage, Differential and Compound Pressure Types
0.000
0.330
1.650
2.970
3.300
Pmin
Output Voltage (V)
Pmax
Pressure
0.165
3.135
A Type
B Type
0.000
0.500
2.500
4.500
5.000
Pmin
Output Voltage (V)
Pmax
Pressure
0.250
4.750
A Type
B Type
Output Voltage = __________________
80% *Supply Voltage
Pmax-Pmin *
A Type:
Output Voltage = __________________
90% *Supply Voltage
Pmax-Pmin *+ 0.250
B Type:
+ 0.500 Output Voltage = __________________
80% *Supply Voltage
Pmax-Pmin *(Pressure
applied
A Type:
Output Voltage = __________________
90% *Supply Voltage
Pmax-Pmin *+ 0.165
B Type:
- Pmin) + 0.330
(Pressure
applied
- Pmin)
(Pressure
applied
- Pmin)
(Pressure
applied
- Pmin)
MS4525
MS4525 www.meas-spec.com January 2013
5/14
Vacuum Pressure Type
0.000
0.330
1.650
2.970
3.300
Output Voltage (V)
Pressure
0.165
3.135
A Type
B Type
0.000
0.500
2.500
4.500
5.000
Pmin(-15 PSI G)
Output Voltage (V)
Pmax(0 PSI G)
Pressure
0.250
4.750
A Type
B Type
Output Voltage = __________________
80% *Supply Voltage
Pmax-Pmin *
A Type:
Output Voltage = __________________
90% *Supply Voltage
Pmax-Pmin *+ 0.250
B Type:
+ 0.500 Output Voltage = __________________
80% *Supply Voltage
Pmax-Pmin *
A Type:
Output Voltage = __________________
90% *Supply Voltage
Pmax-Pmin *+ 0.165
B Type:
+ 0.330
Pressure )
applied
(Pmax-
Pressure )
applied
(Pmax-
Pressure )
applied
(Pmax-
Pressure )
applied
(Pmax-
Pmin(-15 PSI G) Pmax(0 PSI G)
MS4525
MS4525 www.meas-spec.com January 2013
6/14
EXTENDED TEMPERATURE MULTIPLIER CHART
PACKAGE, PINOUT & PRESSURE TYPE CONFIGURATION
0.0
0.5
1.5
-25
2.0
-10 5 20 35 50 65 80 11095 125
1.0
2.5
5
6
7
8 1
2
3
4 5
6
7
8 1
2
3
4
1
2
3
45
6
7
8 1
2
3
45
6
7
8 1
2
3
45
6
7
8
1
2
3
45
6
7
8
MS4525
MS4525 www.meas-spec.com January 2013
7/14
Pin Name
Pin
Function
SUPPLY 2 Positive Supply Voltage
OUTPUT 3 Analog Output
GND 4 Ground
1, 5-8 No Connection
Pressure Type
Pmin
Pmax
Description
Absolute
0psiA +Prange Output is proportional to the difference between 0psiA (Pmin) and pressure applied
to Port 1.
Differential/
Bidirectional
-Prange +Prange Output is proportional to the difference between Port 1 and Port 2. Output swings
positive when Port 1> Port 2. Output is 50% of supply voltage when Port 1=Port 2.
Gauge
0psiG +Prange Output is proportional to the difference between 0psiG (Pmin) and Port 1. Output
swings positive when Port 1> Port 2.
Vacuum
-15psiG +0psiG Output is inversely proportional to the difference between -15psiG pressure (Pmin)
and pressure applied to Port 1.
Compound
-15psiG +Prange Output is proportional to the difference between -15psiG pressure (Pmin) and
pressure applied to Port 1.
Prange is equal to the maximum full scale pressure specified in the ordering information.
WETTED MATERIAL BY PORT DESIGNATION
Material
Style
Port
PPS
Ceramic
Silicon
Pyrex
RTV
Gold
Aluminum
Epoxy
DS, MM Port 1 X X X X X X
Port 2 X X X X X X X X
SS, TP Port 1 X X X X X X X X
"X" Indicates Wetted Material
MS4525
MS4525 www.meas-spec.com January 2013
8/14
DIMENSIONS
DIMENSIONS ARE IN INCHES [mm]
MS4525
MS4525 www.meas-spec.com January 2013
9/14
DIMENSIONS ARE IN INCHES [mm]
MS4525
MS4525 www.meas-spec.com January 2013
10/14
DIMENSIONS ARE IN INCHES [mm]
MS4525
MS4525 www.meas-spec.com January 2013
11/14
DIMENSIONS ARE IN INCHES [mm]
MS4525
MS4525 www.meas-spec.com January 2013
12/14
DIMENSIONS ARE IN INCHES [mm]
MS4525
MS4525 www.meas-spec.com January 2013
13/14
AVAILABLE OPTIONS
Gel Coat (-F Option)
The MS45x5 is designed for non ionic and clean dry air applications. Select this option for added protection in
high humidity or slightly corrosive environments with the application of a silicone gel elastomer to sensor and
ASIC. For questions concerning media compatibility, contact the factory.
ORDERING INFORMATION
MS4525
MS4525 www.meas-spec.com January 2013
14/14
NORTH AMERICA EUROPE ASIA
Measurement Specialties
45738 Northport Loop West
Fremont, CA 94538
Tel: 1-800-767-1888
Fax: 1-510-498-1578
Sales: pfg.cs.amer@meas-spec.com
Measurement Specialties
(Europe), Ltd.
26 Rue des Dames
78340 Les Clayes-sous-Bois, France
Tel: +33 (0) 130 79 33 00
Fax: +33 (0) 134 81 03 59
Sales: pfg.cs.emea@meas-spec.com
Measurement Specialties
(China), Ltd.
No. 26 Langshan Road
Shenzhen High-Tech Park (North)
Nanshan District, Shenzhen 518057
China
Tel: +86 755 3330 5088
Fax: +86 755 3330 5099
Sales: pfg.cs.asia@meas-spec.com
The information in this sheet has been carefully reviewed and is believed to be accurate; however, no responsibility is assumed for
inaccuracies. Furthermore, this information does not convey to the purchaser of such devices any license under the patent rights to the
manufacturer. Measurement Specialties, Inc. reserves the right to make changes without further notice to any product herein. Measurement
Specialties, Inc. makes no warranty, representation or guarantee regarding the suitability of its product for any particular purpose, nor does
Measurement Specialties, Inc. assume any liability arising out of the application or use of any product or circuit and specifically disclaims
any and all liability, including without limitation consequential or incidental damages. Typical parameters can and do vary in different
applications. All operating parameters must be validated for each customer application by customer’s technical experts. Measurement
Specialties, Inc. does not convey any license under its patent rights nor the rights of others.
