MPXV5100GC6U - 100kPa Vented Gauge Pressure Sensor | NXP
MPN: MPXV5100GC6U ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $18.5 | $18.50 |
| 10 | $17.2 | $172.00 |
| 100 | $14.9 | $1,490.00 |
| 500 | $13.45 | $6,725.00 |
| 1,000 | $11.05 | $11,050.00 |
MPXV5100GC6U Overview
A piezoresistive pressure sensor is a micro-electromechanical (MEMS) device in which diffused strain gauges on a silicon diaphragm change resistance proportionally to applied differential pressure; the sensor IC then conditions this Wheatstone-bridge signal into a usable voltage output. This category belongs to the broader hierarchy of MEMS sensors -> pressure transducers -> environmental/physical sensors -> semiconductor components, where it sits alongside load cells, capacitive pressure sensors, and force-sensitive resistors as one of several transducer families. The MPXV5100GC6U belongs to the MPX5100/MPXV5100 series, which is the most widely adopted high-pressure (>50 kPa) variant of this NXP family.
Key differentiating features include the 0.2 V to 4.7 V ratiometric output (5 V supply → 4.7 V full-scale span), an accuracy of approximately 2.5 % of full-scale span, a fast response time of 1.0 ms, and a single 5 V supply operation. The vented gauge reference eliminates the need for external barometric compensation in many indoor applications, and the integrated temperature compensation between 0 °C and 85 °C removes the burden of software-based correction. The SOP-8 top-port package is optimized for tube-fed pneumatic systems and is compatible with standard 3.17 mm pneumatic tubing.
Internally, the device combines bipolar signal-conditioning ASICs, thin-film metallization for bridge resistors, and bipolar processing for the active silicon diaphragm. This hybrid integration provides factory-calibrated output without the user needing to perform multi-point calibration in firmware, although system-level gain/offset trimming remains advisable for the most demanding instrumentation applications.
Typical applications include HVAC air-flow monitoring, industrial process control, altimeters and barometric measurement, medical respiratory equipment, electronic scales and load-cell augmentation, and engine manifold absolute pressure (MAP) sensing when externally referenced. The 100 kPa range covers most non-absolute-pressure scenarios in industrial and consumer instrumentation.
When designing with this part, choose a low-impedance ADC input or add a unity-gain buffer between the sensor output and the MCU; the output cannot drive high-current loads directly. Decouple the VCC pin with a 0.1 µF ceramic capacitor placed within 5 mm of the package lead, and avoid sharp tube bends that introduce flow-induced noise. For barometric applications above 100 kPa, consider the MPXV5100DP (differential) variant.
This page synthesizes verified distributor pricing, drop-in alternative candidates, application notes, and design considerations not consolidated on the manufacturer product page or distributor listing.
Drop-in alternatives for MPXV5100GC6U — 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 MPXV5100GC6U (same form factor and footprint) — differing in Package, Response Time, Pressure Type, Mounting Type, Operating Pressure Range.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
MPXV5100GC7U
✅ Drop-In✓ In Stock
$8.95 / Unit
View Datasheet →MPXV5100DP
✅ Drop-In✓ In Stock
$9.1 / Unit
View Datasheet →MPXV5050GC6U
✅ Drop-In📋 Reference alternative (not in catalog)
MPXV7002GC6U
✅ Drop-In📋 Reference alternative (not in catalog)
MPXV5100GC6
✅ Drop-In📋 Reference alternative (not in catalog)
MPXV5100GC6U Maximum Ratings & Electrical Characteristics
| Manufacturer | NXP Semiconductors (formerly Freescale, Motorola) |
| Sensor Type | Pressure Sensor, Vented Gauge |
| Operating Pressure Range | 0 kPa to 100 kPa (0 PSI to 14.5 PSI) |
| Pressure Type | Vented Gauge |
| Accuracy | 2.5 % of Full-Scale Span (typ.) |
| Output Type | Analog, Ratiometric Voltage |
| Output Voltage Range | 0.2 V to 4.7 V (at 5 V supply) |
| Supply Voltage (VCC) | 4.75 V to 5.25 V |
| Response Time | 1.0 ms (typical) |
| Operating Temperature Range | 0 °C to +85 °C |
| Port Style | Top port, male 0.13" (3.17 mm) tube |
| Package / Case | 8-SMD, Gull Wing, Top Port (SOP-8 derived) |
| Mounting Type | Surface Mount |
| Output Sensitivity | 45 mV/kPa (typical) |
| Pressure Reference | Atmospheric vent (vented gauge) |
| On-chip Signal Conditioning | Yes (temperature compensated, calibrated) |
MPXV5100GC6U Pin Configuration
| Pin 1 | VCC — 5 V supply voltage (4.75 V to 5.25 V) |
| Pin 2 | Vout — Analog ratiometric output (0.2 V to 4.7 V) |
| Pin 3 | GND — Ground reference |
| Pin 4 | NC — Not connected (per datasheet) |
| Pin 5 | NC — Not connected (per datasheet) |
| Pin 6 | NC — Not connected (per datasheet) |
| Pin 7 | NC — Not connected (per datasheet) |
| Pin 8 | NC — Not connected (per datasheet) |
Typical Applications
MPXV5100GC6U is suitable for 6 applications: HVAC Air-Flow and Duct Pressure Monitoring, Engine Manifold Absolute Pressure (MAP) Sensing, Medical Respiratory and Airway Pressure Monitoring, Industrial Process Control and Tank-Level Sensing, Altimeter and Barometric Pressure Measurement, Electronic Scales and Load Cell Augmentation.
HVAC Air-Flow and Duct Pressure Monitoring
The MPXV5100GC6U fits HVAC duct-pressure monitoring because its 0 kPa to 100 kPa range covers typical 0-25 kPa duct static-pressure spans with margin, while the 0.2 V to 4.7 V ratiometric output interfaces directly to a 5 V MCU ADC without level shifting. Its 1.0 ms response time tracks turbulent flow pulsations accurately, and the vented gauge reference eliminates barometric compensation firmware. Placed in the duct with a 3.17 mm pneumatic tap line, the sensor feeds a differential pressure reading back to the building controller; unlike capacitive flow sensors, the piezoresistive bridge is unaffected by humidity within its operating range and provides stable 2.5 % accuracy across 0-85 °C.
Recommended
Engine Manifold Absolute Pressure (MAP) Sensing
The MPXV5100GC6U is well suited to engine MAP sensing in motorcycle, small-engine, and industrial powertrain applications. Its 0 kPa to 100 kPa range brackets atmospheric plus boost pressure, and the ratiometric 0.2 V to 4.7 V output paired with on-chip temperature compensation produces a stable signal across cold-start to hot-running conditions. With a sealed reference (when externally ported to manifold vacuum) it tracks manifold pressure within 2.5 % full-scale accuracy, supporting fuel-injection trim. Placed near the manifold with a vacuum line and a 5 V ADC interface, it adds less signal-conditioning complexity than a bare Wheatstone-bridge sensor.
Recommended
Medical Respiratory and Airway Pressure Monitoring
For medical respiratory equipment such as CPAP machines, ventilators, and breathing-circuit pressure monitors, the MPXV5100GC6U delivers 0-100 kPa measurement that spans airway, circuit, and barometric pressures with margin. The 1.0 ms response time captures breathing-cycle transients accurately, while on-chip temperature compensation from 0 °C to 85 °C maintains accuracy across warm-up and steady-state operation. Placed in the breathing-circuit pneumatic path with a tube tap and connected to an isolated ADC front-end for patient-safety isolation, the sensor outputs a clean 0.2 V to 4.7 V signal; note that medical FDA/regulatory certifications are system-level and not provided by the sensor alone.
Recommended
Industrial Process Control and Tank-Level Sensing
The MPXV5100GC6U serves industrial tank-level and process-pressure applications where 0-100 kPa covers most non-hazardous liquid-column measurements. The vented gauge configuration references atmospheric pressure, eliminating the need for a separate atmospheric-compensation line in vented tanks. The 5 V supply with ratiometric output simplifies integration with industrial PLCs and 5 V MCUs. Placed at the tank top with a tube connection to the gas space above the liquid, the sensor outputs a pressure-proportional voltage that translates to level via hydrostatic conversion; the 2.5 % full-scale accuracy suits process-monitoring rather than high-precision metering.
Recommended
Altimeter and Barometric Pressure Measurement
The MPXV5100GC6U can serve consumer-grade altimeter and barometric measurement applications where 0-100 kPa covers sea-level (101.325 kPa) to several thousand meters of altitude. The vented gauge reference means the sensor output already reflects local barometric pressure, simplifying altitude-derivation firmware. The 45 mV/kPa sensitivity gives 12-meter resolution per ADC step when using a 12-bit ADC at 5 V reference, adequate for weather-station and hobbyist altimeter use. For higher-precision barometric work, dedicated barometric-pressure ICs (e.g., BMP-series) provide better resolution; the MPXV5100GC6U trades precision for higher full-scale headroom.
Recommended
Electronic Scales and Load Cell Augmentation
Although not a primary load-cell choice, the MPXV5100GC6U can augment electronic-scale systems where pneumatic or hydraulic force is converted to pressure and applied to the sensor diaphragm. The 0-100 kPa range suits scales up to roughly 10 kg with a 1 cm² effective piston, and the integrated temperature compensation reduces warm-up drift that plagues bare-bridge implementations. Placed at the base of a piston-cylinder force-converter with the 5 V analog output fed to a precision ADC, the sensor streamlines the analog front-end; for direct load-cell weighing, dedicated strain-gauge signal conditioners and load cells remain the preferred approach for cost and accuracy reasons.
Recommended
Recommended Products Summary
Engineering reference data for MPXV5100GC6U — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | MPXV5100GC7U | MPXV5100DP | MPXV5050GC6U | MPXV7002GC6U | MPXV5100GC6 |
|---|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 8-SMD, Gull Wing, Top Port (SOP-8) | 8-SMD, Gull Wing, Top Port (SOP-8) - same | 8-SMD, Gull Wing, Dual Port - same footprint | 8-SMD, Gull Wing, Top Port (SOP-8) - same | 8-SMD, Gull Wing, Top Port (SOP-8) - same | 8-SMD, Gull Wing, Top Port (SOP-8) - same |
| Pressure Range | 0 to 100 kPa (0 to 14.5 PSI) | 0 to 100 kPa | 0 to 100 kPa (differential) | 0 to 50 kPa | -2 to +2 kPa | 0 to 100 kPa |
| Pressure Type | Vented Gauge | Vented Gauge | Differential | Vented Gauge | Vented Gauge | Vented Gauge |
| Output Voltage Span | 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 | 0.5 V to 4.5 V | 0.2 V to 4.7 V |
| Supply Voltage | 4.75 V to 5.25 V | 4.75 V to 5.25 V | 4.75 V to 5.25 V | 4.75 V to 5.25 V | 4.75 V to 5.25 V | 4.75 V to 5.25 V |
| Accuracy (% FS) | 2.5 % | 2.5 % | 2.5 % | 2.5 % | 2.5 % | 2.5 % |
| Response Time | 1.0 ms | 1.0 ms | 1.0 ms | 1.0 ms | 1.0 ms | 1.0 ms |
| Port Configuration | Single top port, 3.17 mm tube | Single top port, 7 mm tube | Dual differential ports | Single top port, 3.17 mm tube | Single top port, 3.17 mm tube | Single top port, 3.17 mm tube |
| Carrier Packaging | Tape & Reel (U suffix) | Tape & Reel | Tape & Reel / Tray | Tape & Reel | Tape & Reel | Tube (no U suffix) |
Key Differentiators
- Single top-port 3.17 mm tube fitting (vs MPXV5100DP)
- Wider 100 kPa full-scale range (vs MPXV5050GC6U)
- Calibrated ratiometric output (vs MPXV7002GC6U)
- On-chip temperature compensation (vs Bare-bridge pressure sensors)
Design Notes
Decouple the VCC pin (pin 1) with a 0.1 µF ceramic capacitor placed within 5 mm of the package lead to suppress supply transients and ensure stable ratiometric output. The output is ratiometric with VCC, so any noise or drift on the 5 V rail appears directly in the output; use a low-noise LDO (e.g., 50 µVrms or better) rather than a switching regulator for noise-sensitive applications such as precision flow metering.
The sensor output cannot drive high-current loads directly. Add a unity-gain buffer (e.g., MCP6001, OPA2333) between the sensor output and the MCU ADC to prevent loading-induced gain error and to provide anti-aliasing when paired with a small RC network. For long cable runs (>0.5 m), use shielded cable with the shield grounded at the MCU end to reject EMI pickup.
Route the pneumatic tube port upward in the final assembly so condensation cannot pool in the sensor cavity. Avoid sharp tube bends (radius < 10 mm) that introduce flow-induced noise into the pressure reading. For through-hole-via applications, seal around the tube port with a small bead of silicone to prevent ambient contamination of the reference port.
Do not apply vacuum beyond -50 kPa to the top port; the vented gauge reference can be damaged. Do not exceed the 5.25 V supply maximum - the on-chip ASIC does not have over-voltage protection. Do not connect NC pins (pins 4-8) to anything; floating them per datasheet to avoid parasitic coupling. For barometric applications above 100 kPa, choose the MPXV5100DP (differential) variant instead.
Compliance Information
RoHS/REACH compliance, lead-free, halogen-free, and conflict-mineral status were not provided in the verified web data; consult NXP's product environmental compliance documents directly. AEC-Q100 is not applicable as this is a sensor IC, not an automotive-qualified part per the verified data.
