Product Overview
The SX-PMAAB series silicon core pressure sensor module is designed for high-stability OEM pressure measurement applications. Built on an ultra-stable silicon piezoresistive chip, it is packaged in a full 316L stainless steel structure with an outer diameter of Ø 19mm (0.75 in). The measured pressure is transmitted through the isolation diaphragm and internal medium to the pressure sensing die, enabling precise conversion of pressure to a digital signal. The sensing element supports silicone oil or fluorine oil fill options, making it particularly suitable for pressure measurement of media in oxygen-enriched environments.
Typical Measurement
- Gauge and absolute pressure measurement
- OEM transmitter pressure sensing element
- Hydraulic and pneumatic system monitoring
- Oxygen-enriched media pressure measurement
Main Features
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Wide Measuring Range 0 – 40 MPa (5,800 psi) gauge; 0 – 3MPa (435 psi) absolute
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Standard OEM Package Ø 19 mm (0.75 in) standard sensing element
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316L Stainless Steel Diaphragm, housing, and all wetted parts in 316L Stainless Stee
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Excellent Long-Term Stability ±0.1 %FS / year
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High Accuracy ±0.075 %FS standard; ±0.10 %FS and ±0.25 %FS options available
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Multiple Output Options 4–20 mA, 0–10 V DC, I²C, UART, RS-485 Modbus (select on order)
Product Application
Industries Served
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OEM Pressure Transmitters
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Industrial Process Monitoring
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Hydraulic Systems
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Chemical & Petrochemical
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Oxygen-Enriched Environments
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Water & Wastewater
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Food & Beverage Processing
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HVAC Systems
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Medical & Laboratory Equipment
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Technical Data
| Measurement | |
| Measurement Type | Gauge pressure / Absolute pressure |
| Measurement Principle | Silicon piezoresistive sensing technology |
| Measuring Range | Gauge: 0–250 kPa to 0–40 MPa; Absolute: 0–250 kPa to 0–3 MPa |
| Overload Capacity | 2–70 × full-scale pressure |
| Accuracy & Stability | |
| Accuracy | ±0.075% FS standard; ±0.10% FS / ±0.25% FS optional |
| Non-Linearity | Typical ±0.05% FS; maximum ±0.10% FS |
| Pressure Hysteresis | Typical ±0.01% FS; maximum ±0.02% FS |
| Thermal Hysteresis | Typical ±0.02% FS; maximum ±0.50% FS |
| Long-Term Stability | ±0.10% FS/year |
Response |
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| Response Time | <0.5 ms (10–90%) |
| Power & Output | |
| Supply Voltage | 12–36 V DC |
| Analog Output | 4–20 mA / 0–10 V DC / Ratiometric output |
| Digital Communication | I²C (IIC) / UART / RS-485 Modbus |
| Electrical Connection | Ø0.5 mm gold-plated Kovar pins or 100 mm silicone rubber flexible leads |
| Environmental Conditions | |
| Operating Temperature | −40 to +85°C |
| Storage Temperature | −50 to +85°C |
| Process Connection & Materials | |
| Package Diameter | Ø18.8 mm (body) / Ø19.0 mm (pressure sensing element) |
| Total Height | 14 ±0.1 mm |
| Diaphragm Material | 316L stainless steel / Hastelloy C-276 |
| Housing Material | 316L stainless steel |
| Fill Fluid | Silicone oil / Fluorine oil / Dry (without fill) |
| Sealing Material | PTFE / FKM / NBR / Without seal |
| Configuration Options | |
| Pressure Type Options | Gauge or absolute pressure measurement |
| Negative Pressure Measurement | Optional |
| OEM Package Design | Standard Ø19 mm pressure sensing element |
Certifications & Compliance
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