TruStability Board Mount
Pressure Sensors:
SSC Series–Standard
Accuracy
®
DESCRIPTION
®
The TruStability Standard Accuracy Silicon Ceramic (SSC)
Series is a piezoresistive silicon pressure sensor offering a
digital output for reading pressure over the specified full scale
pressure span and temperature range.
The SSC Series is fully calibrated and temperature
compensated for sensor offset, sensitivity, temperature effects,
and non-linearity using an on-board Application Specific
Integrated Circuit (ASIC). Calibrated output values for pressure
are updated at approximately 2 kHz.
The SSC Series is calibrated over the temperature range of
-20 °C to 85 °C [-4 °F to 185 °F]. The sensor is characterized
for operation from a single power supply of either 3.3 Vdc or
5.0 Vdc.
FEATURES AND BENEFITS
(=competitive
differentiator)
Proprietary Honeywell technology:
Combines high
sensitivity with high overpressure and burst pressure—two
performance factors that are difficult to achieve in the
same product; this gives the customer more flexibility in
sensor implementation and reduces the customer design
requirements for protecting the sensor without sacrificing
the ability to sense very small changes in pressure
Industry-leading long-term stability:
Even after long-
term use and thermal extremes, these sensors perform
substantially better relative to stability than any other
pressure sensor available in the industry today:
Minimizes system calibration needs
Maximizes system performance
Helps support system uptime by eliminating the need to
service or replace the sensor during its application life
These sensors measure differential and gage pressures.
Differential versions allow application of pressure to either side
of the sensing diaphragm. Gage versions are referenced to
atmospheric pressure and provide an output proportional to
pressure variations from atmosphere.
The SSC Series sensors are intended for use with non-
corrosive, non-ionic working fluids. They are designed and
manufactured according to standards in ISO 9001.
Industry-leading Total Error Band (TEB):
Honeywell
specifies TEB—the most comprehensive, clear, and
meaningful measurement—that provides the sensor’s true
accuracy over a compensated range of -20 °C to 85 °C
[-4 °F to 185 °F].
Eliminates individually testing and calibrating every
sensor, which can increase their manufacturing time
and process
Supports system accuracy and warranty requirements
Helps to optimize system uptime
Provides excellent sensor interchangeability—there is
minimal part-to-part variation in accuracy
Industry-leading accuracy:
Extremely tight accuracy of
±0.25 %FSS BFSL (Full Scale Span Best Fit Straight
Line):
Reduces software needs to correct system
inaccuracies, minimizing system design time
Supports system accuracy and warranty requirements
Helps to optimize system uptime
High burst pressures above 415 inH
2
O (1034 mbar):
Allows the sensor to endure a wide range of conditions
while maintaining a high level of sensitivity which
measures even the smallest change in pressure
Can simplify the design process
High working pressure ranges above 135 inH
2
O
(336 mbar):
Allows ultra-low pressure sensors to be used
continuously well above the calibrated pressure range
Industry-leading flexibility
Modular, flexible design with many package styles
(with the same industry-leading stability), pressure
ports, and options simplify integration into the device
manufacturer’s application
Available soon: single side liquid media option allows
the end customer to use one port of the sensor with
condensing humidity or directly with non-corrosive
liquid media
Repeatability:
Provides excellent repeatability, high
accuracy and reliability under many demanding conditions
Onboard signal conditioning:
Typically allows for the
removal of signal conditioning components from the PCB,
reducing costs and simplifying production processes
Wide variety of pressure ranges:
From ±2.5 mbar to
±40 mbar [±1 inH
2
O to ±30 inH
2
O] provide support for
many unique applications
Meets IPC/JEDEC J-STD-020D.1 Moisture Sensitivity
Level 1 requirements:
Allows the customer to avoid the thermal and
mechanical damage during solder reflow attachment
and/or repair that lesser rated products would incur
Allows unlimited floor life when stored as specified
(<30 ºC/85 %RH), simplifying storage and reducing
scrap
Insensitive to mounting orientation:
Allows customers to position the sensor in the most
optimal point in the system, eliminating the concern for
positional effects
Increases flexibility of use within the application
Insensitive to vibration:
Reduces susceptibility to
application-specific vibration that occurs with changes in
pressure, minimizing inaccurate pressure readings
Custom calibration:
Typically allows for the removal of
additional components associated with signal conditioning
from the PCB, reducing PCB size as well as costs often
associated with those components (e.g., acquisition,
inventory, assembly)
Internal diagnostic functions:
Increases system
reliability
Energy efficient:
Extremely low power consumption (less
than 10 mW, typ.):
Reduces power consumption
Provides extended battery life
Promotes energy efficiency
2
Output:
I C- or SPI-compatible 14-bit digital output (min.
12-bit sensor resolution) accelerates performance through
reduced conversion requirements and the convenience of
direct interface to microprocessors or microcontrollers;
analog output also available
Small size:
Miniature 10 mm x 10 mm [0.39 in x 0.39 in]
package is very small when compared to most board
mount pressure sensors:
Occupies less area on the PCB
Typically allows for easy placement on crowded PCBs
or in small devices
RoHS compliant
Protected by multiple global patents
POTENTIAL APPLICATIONS
Medical:
Ventilators
Anesthesia machines
Spirometers
Nebulizers
Hospital room air pressure
Industrial:
VAV (Variable Air Volume) control
Static duct pressure
Clogged HVAC (Heating, Ventilation, and Air
Conditioning) filter detection
HVAC transmitters
Indoor air quality
For more information on these potential applications, please see the application note
“Honeywell TruStability® Board Mount
Pressure Sensors: HSC Series and SSC Series, Amplified Compensated Digital or Analog Output, ±2.5 mbar to ±40 mbar
[±1 inH
2
O to ±30 inH
2
O]”.
2
www.honeywell.com/sensing
Table 1. Absolute Maximum Ratings
1
Parameter
Supply voltage (V
supply
)
Voltage on any pin
Digital interface clock frequency:
2
IC
SPI
ESD susceptibility (human body model)
Storage temperature
Soldering time and temperature:
Lead solder temperature (SIP, DIP)
Peak reflow temperature (SMT)
Table 2. Operating Specifications
Parameter
2
Supply voltage (V
supply
) :
3.3 Vdc
5.0 Vdc
Sensors are either 3.3 Vdc or 5.0 Vdc based on listing selected.
Min.
-0.3
-0.3
100
50
2
-40 [-40]
Max.
6.0
V
supply
+ 0.3
400
800
85 [185]
4 s max. at 250 °C [482 °F]
15 s max. at 250 °C [482 °F]
Unit
Vdc
V
kHz
kV
C [ F]
Min.
3.27
4.95
Typ.
3.3
3
5.0
3
Max.
3.33
5.05
Unit
Vdc
Supply current:
3.3 Vdc supply
5.0 Vdc supply
4
Compensated temperature range
5
Operating temperature range
Startup time (power up to data ready)
Response time
2
SPI/I C voltage level low
2
SPI/I C voltage level high
Pull up on SDA/MISO, SCL/SCLK, SS
6
Accuracy
7
Orientation sensitivity ( 1 g)
Output resolution
-
-20 [-4]
-40 [-40]
1.6
2
-
0.8
1
2.8
0.46
-
-
-
2.1
3
85 [185]
85 [185]
7.3
0.2
-
-
0.25
0.15
mA
C [ F]
C [ F]
ms
ms
V
supply
V
supply
kOhm
8
%FSS
%FSS
bits
12
Honeywell Sensing and Control
3
Table 3. Environmental Specifications
Parameter
Humidity:
Gases only (See “Options N and D” in Figure 1.)
Liquid media (See “Options T and V” in Figure 1.)
Vibration
Shock
9
Life
Solder reflow
Characteristic
0% to 95% RH, non-condensing
100% condensing or direct liquid media on Port 1
MIL-STD-202F, Method 214, Condition F (20.7 g random)
MIL-STD-202F, Method 213B, Condition F
10
1 million cycles to working pressure min.
J-STD-020D.1, Moisture Sensitivity Level 1 (unlimited floor life
when stored as specified (<30 ºC/85 %RH))
Table 4. Wetted Materials
Parameter
Covers
Substrate
Adhesives
Electronic components
Notes:
11
Port 1 (Pressure Port)
high temperature polyamide
alumina ceramic
epoxy, silicone
ceramic, glass, solder, silicon
Port 2 (Reference Port)
high temperature polyamide
alumina ceramic
epoxy, silicone
silicon, glass, gold, solder
1. Absolute maximum ratings are the extreme limits the device can withstand without damage to the product. Stresses above these ratings may
cause permanent damage. Exposure to absolute maximum conditions for extended periods may degrade device reliability.
2. Ratiometricity of the sensor (the ability of the digital device to maintain performance parameters independent of supply voltage) is achieved
when the supply voltage is within the operating specification range.
3. The sensor is not reverse polarity protected. Incorrect application of supply voltage or ground to the wrong pin may cause electrical failure.
4. The compensated temperature range is the temperature range over which the sensor will produce an output proportional to pressure within the
specified performance limits.
5. The operating temperature range is the temperature range over which the sensor will produce an output proportional to pressure but may not
remain within the specified performance limits.
6. Accuracy: The maximum deviation in output from a Best Fit Straight Line (BFSL) fitted to the output measured over the pressure range at
25 °C [77 °F]. Includes all errors due to pressure non-linearity, pressure hysteresis, and non-repeatability. (See Figure 3.)
7. Orientation sensitivity: The maximum change in offset of the sensor due to a change in position or orientation relative to Earth’s gravitational
field.
8. Full Scale Span (FSS): The algebraic difference between the output signal measured at the maximum (Pmax.) and minimum (Pmin.) limits of
the pressure range. (See Figure 1 for ranges.)
9. Life may vary depending on specific application in which sensor is utilized. Contact Honeywell Sales and Service for Mean Time to Failure
(MTTF) data.
10. Working Pressure: The maximum pressure that may be applied to any port of the sensor in continuous use. This pressure may be outside the
operating pressure range limits (Pmin. to Pmax.) in which case the sensor may not provide a valid output until pressure is returned to within the
operating pressure range. Tested to 1 million cycles, min. (See Figure 5.)
11. Contact Honeywell Sales and Service for detailed material information.
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www.honeywell.com/sensing
Figure 1. Nomenclature and Order Guide
SSC
_ _ _ _ _ _ _ _ _ _
A
_
Series
Package
D
= DIP (Dual Inline Pin)
M
= SMT (Surface Mount Technology)
S
= SIP (Single Inline Pin)
Pressure Port
DIP
NN
= No ports
SMT
NN
= No ports
SIP
NN
= No ports
AA
= Dual
axial barbed
ports, opposite
sides
AN
= Single
axial barbed
port
LN
= Single
axial barbless
port
FF
= Fastener
mount, dual axial
barbed ports,
opposite sides
FN
= Fastener
mount, single axial
barbed port
GN
= Ribbed
fastener mount,
single axial
barbed port
NB
= Fastener
mount, dual axial
ports, same side
RN
= Single
radial barbed
port
RR
= Dual
radial barbed
ports, same
side
DR
= Dual
radial barbed
ports, opposite
sides
HH
= Fastener
mount, dual
radial barbed
ports, same
side
HN
= Fastener
mount, single
radial barbed
port
MN
= Manifold
mount, outer
diameter seal
SN
= Manifold
mount, inner
diameter seal
Supply Voltage
3
= 3.3 Vdc
5
= 5.0 Vdc
Transfer Function
12
A
= 10% to 90% of 2
14
counts
Output Type
13
S
= SPI (not available in SIP package)
2
= I
2
C, Address 0x28
3
= I
2
C, Address 0x38
4
= I
2
C, Address 0x48
5
= I
2
C, Address 0x58
6
= I
2
C, Address 0x68
7
= I
2
C, Address 0x78
Pressure Range
14, 15
inH
2
O (at 4
°C)
Differential
001ND
= ±1 inH
2
O
002ND
= ±2 inH
2
O
004ND
= ±4 inH
2
O
005ND
= ±5 inH
2
O
010ND
= ±10 inH
2
O
020ND
= ±20 inH
2
O
030ND
= ±30 inH
2
O
Gage
002NG
= 0 inH
2
O to 2 inH
2
O
004NG
= 0 inH
2
O to 4 inH
2
O
005NG
= 0 inH
2
O to 5 inH
2
O
010NG
= 0 inH
2
O to 10 inH
2
O
020NG
= 0 inH
2
O to 20 inH
2
O
030NG
= 0 inH
2
O to 30 inH
2
O
mbar
Differential
2.5MD
= ±2.5 mbar
004MD
= ±4 mbar
006MD
= ±6 mbar
010MD
= ±10 mbar
016MD
= ±16 mbar
025MD
= ±25 mbar
040MD
= ±40 mbar
Gage
004MG
= 0 mbar to 4 mbar
006MG
= 0 mbar to 6 mbar
010MG
= 0 mbar to 10 mbar
016MG
= 0 mbar to 16 mbar
025MG
= 0 mbar to 25 mbar
040MG
= 0 mbar to 40 mbar
-
AN
= Single
axial barbed
port
LN
= Single
axial barbless
port
-
AN
= Single
axial barbed
port
LN
= Single
axial barbless
port
-
-
-
-
RN
= Single
radial barbed
port
RR
= Dual
radial barbed
ports, same
side
DR
= Dual radial
barbed ports,
opposite sides
-
-
-
-
RN
= Single
radial barbed
port
RR
= Dual
radial barbed
ports, same
side
DR
=Dual radial
barbed ports,
opposite sides
Options
N
= Gases only, no special options
D
= Gases only, diagnostics on
T
= Liquid media on Port 1, no diagnostics*
V
= Liquid media on Port 1, diagnostics on*
CAUTION
PRODUCT DAMAGE
·
Ensure liquid media is applied to Port 1 only; Port 2 is
not compatible with liquids.
·
Ensure liquid media contains no particulates. All
TruStability
®
sensors are dead-ended devices.
Particulates can accumulate inside the sensor, causing
damage or affecting sensor output.
·
Recommend that the sensor be positioned with Port 1
facing downwards; any particulates in the system are
less likely to enter and settle within the pressure sensor
if it is in this position.
·
Ensure liquid media does not create a residue when
dried; build-up inside the sensor may affect sensor
output. Rinsing of a dead-ended sensor is difficult and
has limited effectiveness for removing residue.
-
-
-
-
-
-
-
-
·
Ensure liquid media are compatible with wetted
materials. Non-compatible liquid media will degrade
sensor performance and may lead to sensor failure.
Failure to comply with these instructions may result in
product damage.
*Indicates available soon.
Notes:
12. The transfer function limits define the output of the sensor at a given pressure input. By specifying Pmin. and Pmax., the output at Pmin. and
Pmax., the complete transfer function of the sensor is defined. See Figure 2 for a graphical representation of the transfer function. Other
transfer functions are available. Contact Honeywell Customer Service for more information.
13. Analog output is also available. Contact Honeywell Customer Service for more information.
14. Custom pressure ranges are available. Contact Honeywell Customer Service for more information.
15. See Table 5 for an explanation of sensor pressure types.
Honeywell Sensing and Control
5
