NPC-1220 Series of Medium Pressure Sensors

The NovaSensor NPC-1220 Series of Medium Pressure Sensors are solid state pressure sensors that 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 gauges 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 us for other pressure ranges.

Pressure Ranges	Value
Gauge and Differential:	5 psi (34 kPa, 0.34 bar) 15 psi (100 kPa, 1.0 bar) 30 psi (210 kPa, 2.1 bar) 50 psi (340 kPa, 3.4 bar) 100 psi (690 kPa, 6.9 bar)
Absolute:	15 psi (100 kPa, 1.0 bar) 30 psi (210 kPa, 2.1 bar) 50 psi (340 kPa, 3.4 bar) 100 psi (690 kPa, 6.9 bar)
*For other pressure ranges, please contact NovaSensor.

Parameter	Value
Operating Temperature Range	-40°C to 125°C (-40°F to 257°F)
Compensated Temperature Range	0°C to 60°C (32°F to 140°F)
Storage Temperature Range	-55°C to 150°C (-67°F to 302°F)
Weight	2.5 g (0.005 lb)
Media Compatibility	Compatible with exposed materials⁷
Positive Differential and Gauge Ports	Dry gases only
Absolute and Negative Differential Ports	Dry gases only

Performance Parameter¹	Units	Minimum	Typical	Maximum	Notes
FS Output (FSO)	mV	49.5	50	50.5	2, 3
Zero Pressure Output	mV	-2	—	2	3
Linearity	%FSO	-0.1	—	0.1	4, 8
Pressure Hysteresis	%FSO	-0.1	—	0.1
Input Impedance	Ω	2500	4000	6000
Output Impedance	Ω	4000	5000	6000
Thermal Accuracy–Span	%FSO	-0.5	—	0.5	3, 5, 8
Thermal Accuracy–Zero	%FSO	-0.5	—	0.5	3, 5, 8
Temperature Coefficient– Resistance	%/°C	—	0.2	—	5
Thermal Hysteresis–Zero	%FSO	—	0.1	—	5
Pressure Overload	Rated	—	—	3X	6, 9
Supply current = 1.5 mA and ambient temperature = 77°F (25°C), unless otherwise noted. Gauge and differential pressure devices are calibrated by applying pressure to the positive differential port (P2) and venting to atmosphere the reference port (P1). Output span of unamplified sensor. 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-1210 is interchangeable only when used with the gain set resistor shown in the schematic diagram. Maximum gain-set resistor mismatch is 2%. Best fit straight line. Temperature Range: 32°F to 140°F (0°C to 60°C), reference to 77°F (25°C). 3X or 200 psi (13.78 bar) maximum, whichever is less. Exposed materials are pyrex, ceramic, silicon, epoxy, RTV, and stainless steel. 5 psi (0.34 bar) spec.: Linearity: 0.25 ±%FSO, TC-span: 0.75 ±%FSO, TC-zero: 0.75 ±%FSO. otherwise noted. Port 1 is limited to 60 PSIG for differential and absolute pressure sensors. Contact factory for 50 PSIA/D and 100 PSIA/D units.

Part Number	Description
NPI15A-352-A-H	No Port, 3500kPa, absolute pressure, constant current excitation
NPI15A-352-S-H	No Port, 3500kPa, sealed gauge, constant current excitation
NPI15A-702-A-H	No Port, 7000kPa, absolute pressure, constant current excitation
NPI15A-702-S-H	No Port, 7000kPa, sealed gauge, constant current excitation
NPI15A-353-A-H	No Port, 35000kPa, absolute pressure, constant current excitation
NPI15A-353-S-H	No Port, 35000kPa, sealed gauge, constant current excitation
NPI15B-352-A-H	1/2-20 UNF, 3500kPa, absolute pressure, constant current excitation
NPI15B-352-S-H	1/2-20 UNF, 3500kPa, sealed gauge, constant current excitation
NPI15B-702-A-H	1/2-20 UNF, 7000kPa, absolute pressure, constant current excitation
NPI15B-702-S-H	1/2-20 UNF, 7000kPa, sealed gauge, constant current excitation
NPI15H-352-A-H	1/4-18 NPT, 3500kPa, absolute pressure, constant current excitation
NPI15H-352-S-H	1/4-18 NPT, 3500kPa, sealed gauge, constant current excitation
NPI15H-702-A-H	1/4-18 NPT, 7000kPa, absolute pressure, constant current excitation
NPI15H-702-S-H	1/4-18 NPT, 7000kPa, sealed gauge, constant current excitation
NPI15J-352-A-H	1/8-27 NPT, 3500kPa, absolute pressure, constant current excitation
NPI15J-352-S-H	1/8-27 NPT, 3500kPa, sealed gauge, constant current excitation
NPI15J-702-A-H	1/8-27 NPT, 7000kPa, absolute pressure, constant current excitation
NPI15J-702-S-H	1/8-27 NPT, 7000kPa, sealed gauge, constant current excitation

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