Model 4425
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PC Board Mountable Pressure Sensor
0-100 mV Output
Voltage Excitation
Differential and Absolute
Temperature Compensated
DESCRIPTION
The 4425 is a temperature compensated, piezoresistive silicon pressure sensor packaged in a dual-in-
line configuration and intended for cost sensitive applications where excellent performance and long-term
stability are required.
Integral temperature compensation is provided over a range of 0-50°C using laser-trimmed resistors.
The pressure sensor is available in absolute or differential pressure ranges from 0-1 to 0-300 psi. The pressure
ports are 1/8” barbed ports which mate with 3/32” ID tubing. These tubes are parallel to the printed circuit board
to allow other boards to be located above the sensor. For a vertical mounted tube in gage or absolute pressure,
refer to model 4426. For pressures below 1 psi, refer to the model 4415/4416.
FEATURES
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Dual-in-Line Package
0ºC to 50ºC Compensated
Temperature Range
±0.25% Pressure Non Linearity
Solid State Reliability
APPLICATIONS
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Medical Instruments
Altitude and Airspeed Measurements
Process Control
Factory Automation
Leak Detection
STANDARD RANGES
Range
0 to 1
0 to 5
0 to 15
0 to 30
0 to 50
0 to 100
0 to 150
0 to 300
psid
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psia
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Model 4425
PERFORMANCE SPECIFICATIONS
Supply Voltage: 12V
Ambient Temperature: 25°C (unless otherwise specified)
Pressure applied to Port 2
PARAMETERS
Span (0-1 psi)
Span (0-5 psi)
Span (0-15 to 0-50 psi)
Span (0-100 & 0-300 psi)
Span (0-150 psi)
Zero Pressure Output
Pressure Non Linearity
Pressure Hysteresis
Input Resistance
Output Resistance
Temperature Error – Span
Temperature Error – Zero
Supply Voltage
Long Term Stability (Offset & Span)
Pressure Overload (Differential)
Common Mode Pressure
Compensated Temperature
Operating Temperature
Storage Temperature
Humidity
Weight
Solder Temperature
Media
260ºC Max 5 Sec.
Non-Corrosive Dry Gases Compatible with Silicon, Pyrex,
RTV, Ceramic & Gold
0
-25
-40
0
5
3500
-1
-0.75
MIN
17.6
58
88
98
148
-1
-0.25
±0.2
15
5000
0.3
±0.2
12
±0.1
3X
500
50
85
125
85
3
25
6500
1
0.75
20
% Span
mV
V
mV
Rated
psi
ºC
ºC
ºC
% RH
grams
6
4
5
3
3
TYP
18
60
90
100
150
±0.2
MAX
18.4
62
92
102
152
1
0.25
UNITS
mV
mV
mV
mV
mV
mV
% Span
% Span
K
NOTES
1
1
1
1
1
1
2
Notes
1. Ratiometric to supply voltage.
2. Best fit straight line. Non linearity for 5 psi devices is 0.75%.
3. Maximum temperature error between 0°C and 50°C with respect to 25°C.
4. Long term stability over a one year period with constant voltage and temperature.
5. 3X or 400 psi max, whichever is less.
6. For more details refer to 4425/4426 Mounting Application Note.
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Model 4425
DIMENSIONS
CONNECTIONS
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Model 4425
ORDERING INFORMATION
4425 - 005 D F
Coating (F = Gel Fill, Blank = No Coating)
Type (A = Absolute, D = Differential)
Pressure Range
Model
NORTH AMERICA
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
EUROPE
Measurement Specialties
(Europe), Ltd.
26 Rue des Dames
F78340 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
ASIA
Measurement Specialties
(China), Ltd.
No. 26 Langshan Road
Shenzhen High-Tech Park (North)
Nanshan District, Shenzhen 518107
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.
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