The Fujikura FPM-120PG is a piezoresistive pressure sensing element designed for gauge pressure measurement in non-corrosive gas applications. This uncompensated sensor is housed in a dual-in-line package (DIP) with 2.54 mm pin spacing and integrates directly into pressure measurement systems requiring fast response and compact form factor.
Technical Specifications
Pressure Range
• Rated pressure: 827.4 kPa (120 Psi)
• Measurable range: −98.07 to 827.4 kPa (−14.22 to 120 Psi)
• Maximum load pressure: 2× rated pressure
Electrical Performance
• Excitation current: 1.5 mADC (constant); 3.0 mADC (maximum)
• Output span: 60 to 140 mV (0 kPa to rated pressure at 1.5 mA, 25°C)
• Offset voltage: ±20 mV at 0 kPa
• Bridge resistance: 4000 to 6000 Ω
Dynamic & Accuracy
• Response time: 2 msec
• Total system accuracy (TSO): ±5 %FS
• Temperature coefficient of sensitivity (TCS): 2.5 %FS over 0–50°C range
• Linearity: ±0.3 to ±0.6 %FS
Environmental
• Operating temperature: 0 to 50°C
• Storage temperature: −40 to 120°C
• Operating humidity: 30 to 80 %RH (non-condensing)
– Key Features
• Piezoresistive sensing element with Wheatstone bridge configuration
• Through-hole mounting via DIP package
• Uncompensated design for flexible signal conditioning integration
• Gas-only media compatibility (non-corrosive)
• Low excitation current minimizes power dissipation
• Fast 2 msec response suitable for dynamic measurements
– Typical Applications
• Industrial pressure monitoring and control systems
• HVAC and pneumatic system instrumentation
• Gas flow measurement and regulation
• Process automation requiring point-of-measurement sensing
– Compatibility & Integration
The constant 1.5 mADC excitation and ratiometric 60–140 mV output span integrate directly with instrumentation amplifiers and signal conditioning modules. DIP pinout supports breadboard and PCB-based designs. Bridge configuration enables temperature-compensated output when coupled with matched reference elements.
