NPC-1220 Series
Medium Pressure Sensors
Applications
•
•
•
•
•
Industrial automation
Air flow monitors
Process control
Medical equipment
Underground cable leak detection
Features
•
•
•
•
•
•
•
•
50 mV full scale output (FSO)
±0.1% accuracy
Interchangeable
Temperature compensated 32°F to 140°F
(0°C to 60°C)
PCB mountable package
DIP package
Solid state reliability
Individual device traceability
Amphenol
Advanced Sensors
NPC-1220 Specifications
Description
The NPC-1220 Series of solid state pressure
sensors are designed to provide a cost effective
solution for applications that require calibrated
performance over a wide temperature range.
Packaged in a dual-in-line configuration, the
NPC-1220 Series is intended for printed circuit
board mounting. Optional pressure port and lead
configurations give superior flexibility in low profile
applications where pressure connection orientation
is critical.
The NPC-1220 Series is based on NovaSensor’s
advanced SenStable
®
piezoresistive sensing
technology. Silicon micromachining techniques
are used to ion implant piezoresistive strain gages
into a Wheatstone bridge configuration. The NPC-
1220 Series offers the added advantage of superior
temperature performance over the temperature
compensated range of 32°F to 140°F (0°C to 60°C).
A current set resistor is included to normalize the
FSO for field interchangeability. Additionally, the
NPC-1220 Series is available in pressure ranges
from 0 psi to 5 psi (0 bar to 0.34 bar) through 0
psi to 100 psi (0 bar to 6.89 bar). Please contact
NovaSensor or other pressure ranges.
PRESSURE SENSOR
1
- OUT
1.235 V
0.60 in (15.24 mm)
0.1 in
(2.54 mm)
0.6 in (15.24 mm
G6
Vref
0.15 in
(3.8 mm)
8
7
6 5
+
A1
4 +IN
-IN
Vout (FSO = 50mV)
+ OUT
3
CURRENT SET
RESISTOR
GND
0.2 in
(5.1 mm)
0.32 in
(8.1 mm)
7
N.C.
Lead
8
N.C.
2
6
5
1
2
3
4
0.12 in (3.05 mm)
Connection
– OUT
– IN
+ OUT
+ IN
Current Set Resistor
No Connection
0.37 in (9.4 mm)
Diameter 0.127 in
(3.23 mm), Two tubes
1
2
3
4
5, 6
7, 8
Used for positive differential (P2)
NPC-1220 Series schematic diagram
Not used
for gauge (P1)
Ceramic
substrate
8X 0.07 in
(1.78mm)
(1)
8X 0.34 in
(8.6 mm)
8X 0.02 in (0.51 mm)
1.
Tube length; L = 0.490, S=0.325, N = No tube.
2. Lead pins can be in either the same or the opposite direction of the pressure tube. Option (1) has the leads in the “Up”
position, the same direction as the tube.
Option (3) has the leads in the “Down” position, the opposite direction of the tube.
3. Gauge and differential pressure devices are calibrated by applying pressure to the positive differential port (P2) and vent-
ing to atmosphere the reference port (P1). Absolute pressure devices use only P1 to apply vacuum or pressure.
L, S (See Notes)
Not used
for absolute
0.167 in
(4.2mm)
(3)
NPC-1220 Series package diagram
NPC-1220 Specifications
Pressure Ranges
•
Gauge and differential: 5, 15, 30, 50 and 100 psi
(0.34, 1.03, 2.06, 3.44 and 6.89 bar)
•
Absolute: 15, 30, 50 and 100 psi (1, 2, 3.4 and 7
bar); 5 psi (0.34 bar)—call NovaSensor
Warranty
NovaSensor warrants its products against defects
in material and workmanship for 12 months from
the date of shipment . Products not subjected to
misuse will be repaired or replaced. NovaSensor
reserves the right to make changes without further
notice to any products herein. NovaSensor makes
no warranty, representation or guarantee regarding
the suitability of its products for any particular
application. NovaSensor does not assume any
liability arising out of the application or use of
any product or circuit and specifically disclaims,
and all liability without limitation, consequential
or incidental damages. The foregoing warranties
are exclusive and in lieu of all other warranties,
whether written, oral, implied or statutory. No
implied statutory warranty of merchantability or
fitness for particular purpose shall apply.
Parameter
Environmental
Temperature Range
Operating
Compensated
Storage
Mechanical
Weight
Media Compatibility
Positive differential
and gauge ports
Absolute. Negative
differential ports
Value
Units
Notes
–40° to 257°
32° to 140°
–67°F to 302°
0.005
Compatible with
exposed materials
Compatible with
exposed materials
Dry gases only
°F
°F
°F
lb
(-40°C to 125°C)
(0°C to 60°C)
(–55°C to 150 °C)
(2.5 g)
7
Parameter
FS Output (FSO)
Zero Pressure Output
Linearity
Pressure Hysteresis
Input Impedance
Output Impedance
Thermal Accuracy–Span
Thermal Accuracy–Zero
Temperature
Coefficient–Resistance
Thermal Hysteresis–Zero
Maximum Pressure
Units
mV
mV
±%FSO
±%FSO
Ω
Ω
%FSO
%FSO
%/°C
%FSO
Rated
Min.
49.5
-2
-0.1
-0.1
2500
4000
-0.5
-0.5
—
—
—
Typical
50
—
—
—
4000
5000
—
—
0.2
0.1
—
Max.
50.5
2
0.1
0.1
6000
6000
0.5
0.5
—
—
3X
Notes
2, 3
3
4, 8
Performance Parameters (1)
3, 5, 8
3, 5, 8
5
5
6
1.
Ambient temperature = 77°F (25°C), unless otherwise noted. Gauge and differential pressure devices are calibrated by applying pressure to the positive
pressure port (P2) and venting to atmosphere the reference port (P1).
2.
Output span of unamplified sensor using the current set resistor and the circuit shown in the schematic drawing.
3.
Compensation resistors are an integral part of the sensor package; no additional external resistors are required. Pins 7 and 8 must be kept open.
The NPC-1220 is interchangeable only when used with the current set resistor shown in the schematic diagram.
4.
Best fit straight line.
5.
Temperature range 32°F to 140°F (0°C to 60°C), reference to 77°F (25°C).
6.
3X or 200 psi (13.78 bar) maximum, whichever is less.
7.
Exposed materials are pyrex, ceramic, silicon, epoxy, RTV, and stainless steel..
8. 5 psi (0.34 bar) spec.:
• Linearity: 0.25 ±%FSO
• TC-span: 0.75 ±%FSO
• TC-zero: 0.75 ±%FSO
NPC-1220 Specifications
Ordering Information
The code number to be ordered may be specified as follows:
NPC-1220
Code
Pressure Range
005
005 psi (0.3 bar)
015
015 psi (1 bar)
030
030 psi (2 bar)
050
050 psi (3.4 bar)
100
100 psi (7 bar)
Code
D
A
G
Type
Differential
Absolute
Gauge
Code
1
3
Lead Configurations
Up
Down
Code
L
S
N
Tube Options
Long
Short
None *
NPC -1220
- ____
-
____
-
____
-
____
Typical model number
* Order NPC-1220-XXXG-XN in place of NPC-1220-XXXD-XN
Amphenol
Advanced Sensors
www.amphenol-sensors.com
© 2017 Amphenol Corporation. All Rights Reserved. Specifications are subject to change without notice.
Other company names and product names used in this document are the registered trademarks or
trademarks of their respective owners.
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