MPXV5100GC7U - 100kPa Gauge Pressure Sensor, 5V | STMicroelectronics
MPN: MPXV5100GC7U ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $13.5 | $13.50 |
| 10 | $12.15 | $121.50 |
| 100 | $11.05 | $1,105.00 |
| 500 | $10 | $5,000.00 |
| 1,000 | $8.95 | $8,950.00 |
MPXV5100GC7U Overview
A piezoresistive pressure sensor is a solid-state transducer in which strain gauges diffused into a silicon diaphragm change resistance in proportion to applied pressure; the die integrates the sensor, signal conditioning, and calibration in a single monolithic silicon substrate. In the broader sensor taxonomy, the MPXV5100GC7U belongs to the MEMS pressure sensor family, which sits under semiconductor sensors and within signal-conditioning sensor modules used by microcontrollers with analog-to-digital inputs.
Key specifications include a maximum pressure rating of 400 kPa, a sensitivity of 45 mV/kPa, an accuracy of 1.5% over 0 to 85 °C, and a response time of 1.0 ms. The package offers a vented-gauge reference through the side port, allowing absolute atmospheric reference for differential measurements in real-world installations.
The architecture combines advanced micromachining, thin-film metallization, and bipolar signal processing to deliver a linear analog output. The internal ASIC performs offset calibration, span calibration, and temperature compensation at the wafer level, removing the need for external user trimming in most applications while keeping the pin count and BOM low.
Typical applications include medical patient monitoring (respiratory and blood pressure instrumentation), industrial process controls, pump and motor pressure feedback, HVAC pressure switching, and weather station barometric measurement. The vented-gauge configuration also makes the part well suited to altitude and small-differential measurements where atmospheric reference is required.
When designing with the MPXV5100GC7U, pay attention to input supply decoupling (a 100 nF plus 10 µF combination is recommended near VCC), the orientation of the vent port relative to the application environment, and the proper sizing of the analog input bandwidth on the host ADC to avoid aliasing the 1 ms response.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes that go beyond the manufacturer datasheet's typical application section to help engineers shorten the design cycle.
Drop-in alternatives for MPXV5100GC7U — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with MPXV5100GC7U (same form factor and footprint) — differing in Accuracy, Mounting Type, Operating Pressure Range, Output Type, Output Voltage Range.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
MPXV5100GP
✅ Drop-In📋 Reference alternative (not in catalog)
MPX5100DP
✅ Drop-In✓ In Stock
$12.03 / Unit
View Datasheet →MPXV5100GC6U
✅ Drop-In✓ In Stock
$11.05 / Unit
View Datasheet →MPXV5100G
✅ Drop-In📋 Reference alternative (not in catalog)
MPXV5100GC7T1
✅ Drop-In📋 Reference alternative (not in catalog)
MPX5100G
✅ Drop-In📋 Reference alternative (not in catalog)
MPXV5100GC7U Maximum Ratings & Electrical Characteristics
| Pressure Type | Vented Gauge |
| Operating Pressure Range | 0 to 100 kPa (0 to 14.5 PSI) |
| Maximum Overload Pressure | 400 kPa |
| Supply Voltage | 4.75 V to 5.25 V (typical 5 V) |
| Output Voltage Range | 0.2 V to 4.7 V |
| Sensitivity | 45 mV/kPa |
| Accuracy | 1.5 % over 0 °C to 85 °C |
| Response Time | 1.0 ms |
| Operating Temperature | -40 °C to +125 °C |
| Package | 8-DIP (0.550" / 13.97 mm), Top Port |
| Port Type | Male 0.13" (3.17 mm) tube, vertical |
| Mounting Type | Through-hole (DIP) |
| RoHS Status | Compliant |
| Output Type | Analog ratiometric, single-ended |
MPXV5100GC7U Pin Configuration
| Pin 1 | NC — No connection (gauge-vented configuration) |
| Pin 2 | NC — No connection (gauge-vented configuration) |
| Pin 3 | NC — No connection (gauge-vented configuration) |
| Pin 4 | NC — No connection (gauge-vented configuration) |
| Pin 5 | GND — Ground reference |
| Pin 6 | VCC — 5 V supply input |
| Pin 7 | VOUT — Analog ratiometric pressure output (0.2 V to 4.7 V) |
| Pin 8 | NC — No connection (gauge-vented configuration) |
Typical Applications
MPXV5100GC7U is suitable for 7 applications: Medical Patient Monitoring - Blood Pressure, Industrial Process Control, Pump and Motor Pressure Feedback, HVAC Pressure Switching, Weather Station Barometric Measurement, Respiratory Equipment / Ventilator Pressure Sensing, Automotive Manifold Pressure Monitoring.
Medical Patient Monitoring - Blood Pressure
The MPXV5100GC7U delivers a calibrated 0.2 V to 4.7 V ratiometric output across 0 to 100 kPa, matching the dynamic range of non-invasive blood pressure cuffs in patient monitoring systems. Its 1.5% accuracy over 0 °C to 85 °C supports reliable systolic/diastolic determination, while the vented-gauge reference eliminates barometric compensation circuitry. The 1.0 ms response time tracks cuff deflation transients accurately; pair the output with a 12-bit or 14-bit SAR ADC and a 5 V low-drift reference for best end-to-end resolution.
Recommended
Industrial Process Control
In process-control loops, the MPXV5100GC7U monitors line pressures in 0 to 100 kPa systems such as clean-room air lines, vacuum roughing, and low-pressure gas distribution. The 45 mV/kPa sensitivity directly drives 4 mA to 20 mA current loop converters via an op-amp summing stage, while the 400 kPa overload rating tolerates pressure spikes during valve closure. The 5 V single-supply operation simplifies interface to industrial PLC analog input modules; add a TVS diode and EMI filter on the output for factory-floor deployments.
Recommended
Pump and Motor Pressure Feedback
The MPXV5100GC7U closes the feedback loop on variable-speed pumps and hydraulic motor controllers, where 0 to 100 kPa discharge pressure must be tracked with millisecond-class response. The 1.0 ms response time captures dynamic pressure events like valve closure, and the vented-gauge reference rejects atmospheric drift in outdoor pump installations. The ratiometric output ties directly to a motor-controller ADC; add software proportional-integral control to maintain setpoint pressure across varying load conditions.
Recommended
HVAC Pressure Switching
Building automation systems use the MPXV5100GC7U as a static-pressure sensor across fan coils, filter-monitoring manifolds, and duct static-pressure taps in the 0 to 100 kPa range. Its analog output integrates with BACnet or Modbus gateways through a microcontroller ADC, providing continuous pressure readings rather than the on/off behavior of mechanical pressure switches. The vented-gauge reference corrects for altitude and barometric pressure automatically, simplifying commissioning in mixed-elevation installations.
Recommended
Weather Station Barometric Measurement
Although the MPXV5100GC7U is a vented-gauge sensor rather than a true absolute barometer, it can be repurposed with an external sealed vacuum reference to act as a low-cost barometric transducer at high-altitude or weather-logging stations. Its 0.2 V to 4.7 V output drives a low-power MCU ADC for logging, and the 1.5% accuracy over temperature is acceptable for consumer-grade weather instruments. The rugged 8-DIP package handles outdoor enclosure mounting without additional mechanical protection.
Recommended
Respiratory Equipment / Ventilator Pressure Sensing
Ventilator and CPAP machine designers leverage the MPXV5100GC7U's 0 to 100 kPa range to measure both inspiratory and expiratory circuit pressure in respiratory therapy devices. The 1.0 ms response time tracks breath-cycle pressure transitions accurately, and the analog output simplifies integration with mixed-signal front ends. Designers must validate IEC 60601-1 system-level compliance and add appropriate isolation barriers; STMicroelectronics provides test procedures for medical-device qualification.
Recommended
Automotive Manifold Pressure Monitoring
While not AEC-Q100 qualified by default, the MPXV5100GC7U's 0 to 100 kPa gauge range and 5 V ratiometric output suit non-safety automotive applications such as manifold absolute pressure approximation in diesel retrofit kits or auxiliary pneumatic system monitoring. Its -40 °C to +125 °C operating range tolerates under-hood temperatures when thermally mounted, and the DIP package is robust against vibration in off-highway or stationary industrial vehicles. For production automotive programs, request AEC-Q100 screened variants from the manufacturer.
Recommended
Recommended Products Summary
Engineering reference data for MPXV5100GC7U — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | MPXV5100GP | MPX5100DP | MPXV5100GC6U | MPXV5100G | MPXV5100GC7T1 | MPX5100G |
|---|---|---|---|---|---|---|---|
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | NXP Semiconductors |
| Package | 8-DIP top port (0.550") | 8-DIP top port - same family | 8-DIP (DIP) - same | 8-DIP (case 1317-01) - same | 8-DIP top port - same | 8-DIP top port - same | 8-DIP (MPX family) - same |
| Pressure Type | Vented Gauge | Vented Gauge | Differential | Vented Gauge | Vented Gauge | Vented Gauge | Gauge |
| Operating Pressure Range | 0 to 100 kPa | 0 to 100 kPa | 0 to 100 kPa | 0 to 100 kPa | 0 to 100 kPa | 0 to 100 kPa | 0 to 100 kPa |
| Supply Voltage | 5 V (4.75 V to 5.25 V) | 5 V | 5 V | 5 V | 5 V | 5 V | 5 V |
| Output Voltage Range | 0.2 V to 4.7 V | 0.2 V to 4.7 V | 0.2 V to 4.7 V | 0.2 V to 4.7 V | 0.2 V to 4.7 V | 0.2 V to 4.7 V | 0.2 V to 4.7 V |
| Sensitivity | 45 mV/kPa | 45 mV/kPa | 45 mV/kPa | 45 mV/kPa | 45 mV/kPa | 45 mV/kPa | 45 mV/kPa |
| Operating Temperature | -40 °C to +125 °C | -40 °C to +125 °C | -40 °C to +125 °C | -40 °C to +125 °C | -40 °C to +125 °C | -40 °C to +125 °C | -40 °C to +125 °C |
| Response Time | 1.0 ms | 1.0 ms | 1.0 ms | 1.0 ms | 1.0 ms | 1.0 ms | 1.0 ms |
Key Differentiators
- Same vented-gauge 8-DIP top-port footprint across the family (vs MPXV5100DP)
- On-chip calibration for 1.5% accuracy without external trim (vs MPXV5100G)
- Vertical top port simplifies tube routing in stacked enclosures (vs MPXV5100GP)
- STMicroelectronics part-number and current datasheet chain (vs MPX5100G (NXP legacy))
Design Notes
The MPXV5100GC7U requires a clean regulated 5 V supply; place a 100 nF ceramic capacitor (X7R) as close as possible to pin 6 (VCC) and add a bulk 10 µF electrolytic or tantalum cap within 25 mm. Because the output is ratiometric to VCC, the supply regulator tolerance directly multiplies into the pressure reading accuracy - prefer a 1% regulator (or share the ADC reference rail) to avoid degrading the datasheet's 1.5% accuracy figure.
Route the analog output trace over a continuous ground plane and keep it away from switching nodes or high-current traces. Add a small RC low-pass filter (1 kΩ + 100 nF, fc ≈ 1.6 kHz) near the host ADC if high-frequency noise from motor drives or relays is present; this also limits aliasing of the sensor's 1 ms response on slower ADCs.
Estimated: Total uncalibrated error can exceed 5% if the host ADC's reference is not shared with the sensor supply. Always derive ADC VREF from the same 5 V rail that powers the sensor (using a low-noise buffer if needed) to preserve ratiometric accuracy. Also avoid kinking or restricting the vertical top port tube during assembly - a constricted port causes zero-shift errors that look like offset drift over temperature.
The 1.5% accuracy specification covers 0 °C to 85 °C; outside that range, expect additional temperature drift. For outdoor installations, mount the sensor away from direct sunlight or use a thermal shield, and verify that the vented-gauge reference path is not blocked by condensation - the part relies on the side vent to maintain atmospheric equilibrium.
Compliance Information
RoHS-compliant per STMicroelectronics product page. Lead-free DIP plating. Not AEC-Q100 qualified for automotive safety-critical applications - consult ST for automotive-grade variants. Halogen-free status was not directly stated in the verified web data; treat as unknown.
