Microstructure Pressure Sensors
26PC SMT (1 psi, 5 psi, 15 psi)
FEATURES
• Alignment pins for position
accuracy
• Small package size (less
than one half the size of the
26PC) and compact surface
mount profile
• 3,18 mm [0.125 in] diameter
pick-up feature for use in
pick and place machines
• Max peak reflow
temperature of 260 °C
[500 °F]
• Gage, vacuum gage,
differential, wet/wet
differential sensing
available in one package
• True wet/wet differential
sensing
• Proven elastomeric
interconnections of the
20PC family
• Temperature compensation
• End point calibration
• Sensor consists of only five
components
• Elastomeric construction
• Wide operating temperature
range of -40 °C to 85 °C
[-40 °F to 185 °F]
TYPICAL APPLICATIONS
• Blood glucose monitors
• Oxygen conservers
• Infusion pumps
• Ventilators
• CPAP (Continuous Positive
Airway Pressure)
equipment
• Residential fuel cells
The 26PC SMT (Surface Mount Technology) Series pressure sensor, the
first offering in the 20PC SMT family of pressure sensors, is a small, low
cost, high value, pressure sensing solution for use with printed circuit
boards (PCBs). Based on the long established reliability and accuracy of
the 26PC pressure sensor, the 26PC SMT offers reduced size with true
SMT capability. The smaller size reduces the sensor’s footprint on the
PCB, thereby reducing the size of the PCB. The 26PC SMT is the first
pressure sensor capable of being used with other SMT components on the
PCB, helping to lower installation costs and eliminate secondary
operations.
The sensor features Wheatstone bridge construction, silicon
piezoresistive technology, and ratiometric output for proven application
flexibility, design simplicity and ease of manufacture.
Although primarily designed for the medical industry, the 20PC SMT
pressure sensor may be applied in any industry that requires a surface
mount pressure sensor.
WARNING
PERSONAL INJURY
• DO NOT USE these products as safety or emergency stop devices, or in
any other application where failure of the product could result in personal
injury.
Failure to comply with these instructions could result in death or
serious injury.
WARNING
MISUSE OF DOCUMENTATION
• The information presented in this product sheet is for reference only. Do
not use this document as system installation information.
• Complete installation, operation, and maintenance information is
provided in the instructions supplied with each product.
Failure to comply with these instructions could result in death or
serious injury.
26PC SMT Series
Sensing and Control
Microstructure Pressure Sensors
26PC SMT (1 psi, 5 psi, 15 psi)
26PC SMT Series
26PC SMT PERFORMANCE CHARACTERISTICS (AT 10 VDC ±0.01 VDC EXCITATION, 25 °C)
Min. Typ. Max. Units
Excitation Voltage — 10.0 16.0 Vdc
Response Time — — 1.0 ms
Input Resistance 5.5 k 7.5 k 11.5 k Ohm
Output Resistance 1.5 k 2.5 k 3.0 k Ohm
Span P2>P1
0 to 1 14.7 16.7 18.7 mV
0 to 5 47 50 53 mV
0 to 15 96 100 104 mV
Null Offset Min. Typ. Max.
0 to 1 -2.0 0 +2.0 mV
0 to 5 -2.0 0 +2.0 mV
0 to 15 -2.0 0 +2.0 mV
Linearity (BFSL P2>P1) Typ. Max.
0 to 1 — ±0.50 ±1.75 % span
0 to 5 — ±0.50 ±1.5 % span
0 to 15 — ±0.50 ±1.0 % span
Null Shift 25 ° C to 0 °C, 25 °C to 50°C
0 to 1 — — ±1.0 mV
0 to 5 — — ±1.0 mV
0 to 15 — — ±1.0 mV
Span Shift 25 ° C to 0 °C, 25 °C to 50°C
0 to 1 — ±1.5 ±4.5 % span
0 to 5 — ±1.0 ±1.7 % span
0 to 15 — ±0.75 ±1.5 % span
Repeatability and Hysteresis Typ. Max.
0 to 1 — ±0.2 — % span
0 to 5 — ±0.2 — % span
0 to 15 — ±0.2 — % span
Overpressure P2>P1; P1>P2 Typ. Max.
0 to 1 — — 20 psi
0 to 5 — — 20 psi
0 to 15 — — 45 psi
Notes:
1. Span is the algebraic difference between output at maximum rated operating pressu res and output at 0 psi.
2. Temperature error is calculated with respect to 25 °C.
SPECIFICATIONS
Characteristic Description
Storage Temperature -55 °C to 100 °C [-67 °F to 212 °F]
Operating Temperature -40 °C to 85 °C [-40 °F to 185 °F]
Compensated Temperature 0 °C to 50 °C [32 °F to 122 °F]
Alignment Pins 0,86 mm [0.034 in] diameter pins extend through PCB
Port Diameter 1,88 mm [0.074 in] diameter uses standard 0,59 mm [0.0625 in] ID tubing
Port Orientation Parallel to PCB (low profile on board)
Pick Up Feature 3,18 mm [0.125 in] feature on port cover
SMT Solder • Sn 96.5 Ag 3.5 No Clean Flux
SMT Reflow Profile Max peak temperature of 260 °C [500 °F] for 10 seconds
Media Compatibility Both ports are limited to media that are compatible with polyphthalamide,
Shock Qualification tested to 150 g
Vibration MIL-STD-202. Method 213
Weight 0.5 grams [0.0176 oz]
2 Honeywell • Sensing and Control www.honeywell.com/sensing
(1)
Min. Typ. Max.
(2)
Typ. Max.
(2)
Typ. Max.
• Sn 63 Pb 37 No Clean Flux
fluorosilicone and silicon.
(150 g half sine 11 ms)
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