MPX5050GP - 0-50kPa Vented Gauge Pressure Sensor | NXP
MPN: MPX5050GP ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $12.5 | $12.50 |
| 10 | $11.25 | $112.50 |
| 100 | $9.8 | $980.00 |
| 500 | $8.65 | $4,325.00 |
| 1,000 | $7.85 | $7,850.00 |
MPX5050GP Overview
An integrated silicon pressure sensor is a transducer that converts an applied pressure into a proportional analog voltage using a piezoresistive strain gauge bridge etched directly into a silicon die, with on-chip op-amp and thin-film resistor networks providing amplification, temperature compensation, and calibration. In the broader sensor hierarchy, this part is a pressure sensor (synonym: pressure transducer), which falls under the MEMS sensor category and ultimately the sensor/transducer family of electronic components, interfacing to a microcontroller or ADC.
Key features include a ratiometric analog output from 0.2 V to 4.7 V over the specified pressure range, 2.5 percent maximum accuracy (per the verified distributor data), 7 mA nominal supply current, and an operating temperature range of -40 C to +125 C. The sensor is designed for 5 V nominal supply (4.75 V to 5.25 V), with a maximum overpressure rating of 7 PSI (approximately 2x the full-scale range) per typical MPX5050 family ratings.
The MPX5050GP uses a bipolar op-amp architecture combined with laser-trimmed thin-film resistors to deliver a high-level output signal and accurate temperature compensation across its operating range. The vented gauge (GP) configuration references the rear side of the die to ambient atmosphere, providing absolute differential measurement relative to barometric pressure for applications such as altitude estimation or vacuum-relative sensing.
Typical applications include HVAC pressure monitoring, respiratory/medical equipment, level measurement, altitude estimation for drones or portable devices, and industrial process control where a clean 5 V rail-driven analog pressure signal is required. The automotive-qualified variants within the MPX5050 family make this family popular for manifold absolute pressure (MAP) sensing and barometric absolute pressure (BAP) sensing applications.
When designing with this device, ensure a stable, low-noise 5 V supply because the output is ratiometric. Decoupling capacitors (typically 100 nF) should be placed close to the supply pin. The output is analog and should feed an ADC with adequate resolution (10-bit minimum recommended for the 4.5 V swing to cover 7.25 PSI with ~7 mV/PSI resolution).
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, providing a compact reference for engineers selecting a 50 kPa vented gauge pressure sensor.
Drop-in alternatives for MPX5050GP — 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 MPX5050GP (same form factor and footprint) — differing in Operating Temperature, Package, Output Type, Supply Voltage, Technology.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
MPX5050GP1
✅ Drop-In📋 Reference alternative (not in catalog)
MPX5050DP
✅ Drop-In✓ In Stock
$8.65 / Unit
View Datasheet →MPX5050D
✅ Drop-In✓ In Stock
$9.85 / Unit
View Datasheet →XGZP6885A
✅ Drop-In📋 Reference alternative (not in catalog)
MPX5050GP Maximum Ratings & Electrical Characteristics
| Pressure Type | Vented Gauge |
| Pressure Range | 0 kPa to 50 kPa (0 PSI to 7.25 PSI) |
| Maximum Overpressure | 200 kPa (per MPX5050 family) |
| Output Type | Analog Voltage (ratiometric) |
| Output Voltage Range | 0.2 V to 4.7 V |
| Supply Voltage | 4.75 V to 5.25 V (5 V nominal) |
| Supply Current | 7 mA nominal |
| Accuracy | 2.5% (per distributor data) |
| Operating Temperature | -40 C to +125 C |
| Port Type | 0.19 inch (4.93 mm) Male Tube, Vented |
| Package | 6-SIP Module |
| Mounting Type | Through-Hole |
| Technology | Piezoresistive MEMS, on-chip conditioned |
| RoHS Status | Compliant |
| Temperature Compensation | On-chip, calibrated |
MPX5050GP Pin Configuration
| Pin 1 | VCC — 5V supply input |
| Pin 2 | GND — Ground reference |
| Pin 3 | VOUT — Analog pressure output (0.2V-4.7V) |
| Pin 4 | NC — Not connected (per datasheet) |
| Pin 5 | NC — Not connected (per datasheet) |
| Pin 6 | NC — Not connected (per datasheet) |
Typical Applications
MPX5050GP is suitable for 6 applications: HVAC Pressure Monitoring, Medical Respiratory Equipment, Drone Altitude Estimation, Liquid Level Measurement, Industrial Process Control, Barometric Weather Stations.
HVAC Pressure Monitoring
The MPX5050GP's 0-50 kPa vented gauge range and 0.2 V to 4.7 V ratiometric analog output make it well-suited for HVAC duct pressure measurement and air filter monitoring systems. With 2.5% accuracy and on-chip temperature compensation across -40 C to +125 C, the sensor delivers stable readings in rooftop air handler units and variable-air-volume (VAV) box controllers. Placed inside the duct with the male tube port facing the airflow, the device feeds a 10-12 bit ADC input on the HVAC controller. Unlike differential pressure sensors, the vented gauge configuration provides absolute pressure relative to barometric conditions, which is needed for indoor air quality calculations. The 5 V supply can be shared with the controller's analog rail, simplifying wiring.
Recommended
Medical Respiratory Equipment
The MPX5050GP suits medical respiratory devices including spirometers, CPAP machines, and ventilator pressure monitoring circuits because its 0-50 kPa range covers typical airway pressure spans while the ratiometric analog output interfaces cleanly to medical-grade ADC front-ends. The on-chip temperature compensation maintains accuracy across clinical operating environments, and the 6-SIP through-hole package supports easy cleaning and sterilization of the patient-side tubing path. Place the male tube port on the patient circuit with 100 nF decoupling on the 5 V supply pin for noise immunity. Unlike disposable pressure sensors, the MPX5050GP is a reusable component suitable for equipment manufacturers; designers should verify FDA or CE medical device compliance separately for the complete system.
Recommended
Drone Altitude Estimation
The MPX5050GP's vented gauge configuration makes it ideal for drone altitude estimation where barometric pressure provides height-above-ground references for flight controllers. The 0-50 kPa range covers the full atmospheric pressure span from sea level to high altitudes, and the 4.5 V output swing gives roughly 90 mV per kPa sensitivity for ADC conversion at 5 V supply. With 7 mA supply current and a small 6-SIP module footprint, the device fits within size-constrained drone avionics bays. Place the vent port facing rearward away from propeller wash to avoid dynamic pressure errors. Designers should pair this with a 12-bit ADC for ~0.1 meter altitude resolution and apply altitude-temperature correction in firmware for best accuracy.
Recommended
Liquid Level Measurement
The MPX5050GP works well in liquid level measurement systems where the vented gauge port is connected via tubing to the bottom of a tank, and the vent reference compensates for atmospheric pressure changes on the liquid surface. The 0-50 kPa range covers approximately 5 meters of water column, suitable for small to mid-size tanks. With on-chip temperature compensation, the device maintains accuracy across varying fluid temperatures from -40 C to +125 C. The ratiometric output drives a 4-20 mA current loop converter or a direct ADC input for tank monitoring displays. Unlike ultrasonic or capacitive level sensors, the MPX5050GP requires fluid contact via the pressure port and is best suited for closed-tank applications.
Recommended
Industrial Process Control
The MPX5050GP is a reliable choice for industrial process control loops measuring gas or low-pressure fluid line pressures in the 0-50 kPa range, including cleanroom pressure monitoring and pneumatic system diagnostics. With 2.5% accuracy, ratiometric analog output, and on-chip temperature compensation, the sensor delivers repeatable readings suitable for PLC and SCADA system inputs. The 6-SIP through-hole package provides robust mechanical mounting on industrial control board assemblies, and the 5 V supply integrates with standard 24 V-to-5 V industrial power rails. Place a 100 nF decoupling capacitor close to the supply pin, and consider adding a TVS diode for surge protection in electrically noisy factory environments.
Recommended
Barometric Weather Stations
The MPX5050GP serves barometric weather stations where atmospheric pressure measurement in the 0-50 kPa span is needed for weather prediction and altitude calibration. The vented gauge configuration references the rear side of the die directly to ambient atmosphere, providing accurate absolute pressure without requiring external venting hardware. With ratiometric output, the device feeds an ADC input on the weather logger MCU using the same 5 V rail, simplifying power architecture. The on-chip temperature compensation maintains accuracy across the -40 C to +125 C operating range, suitable for outdoor weather station enclosures. Designers should apply firmware compensation for altitude above sea level for true barometric pressure reporting.
Recommended
Recommended Products Summary
Engineering reference data for MPX5050GP — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | MPX5050GP1 | MPX5050DP | MPX5050D | XGZP6885A |
|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | CFSensor |
| Package | 6-SIP Module | 6-SIP Module - same | 6-SIP Module - same | 6-SIP Module - same | 6-SIP Module (similar) |
| Pressure Range | 0-50 kPa | 0-50 kPa | 0-50 kPa | 0-50 kPa | 0-50 kPa |
| Pressure Type | Vented Gauge | Vented Gauge | Differential (dual port) | Differential (basic) | Gage |
| Output Voltage | 0.2V to 4.7V | 0.2V to 4.7V | 0.2V to 4.7V | 0.2V to 4.7V | 0.5V to 4.5V |
| Supply Voltage | 5V nominal | 5V nominal | 5V nominal | 5V nominal | 5V nominal |
| Lifecycle Status | Active | EOL | Active | Active | Active |
Key Differentiators
- Vented gauge port for absolute barometric reference (vs MPX5050DP)
- Active production status vs predecessor EOL (vs MPX5050GP1)
- Wider output span for higher ADC utilization (vs XGZP6885A)
Design Notes
Use a clean, regulated 5 V supply (4.75 V to 5.25 V) for the MPX5050GP because the output is ratiometric. Supply noise directly couples into the output through the on-chip reference; a low-noise LDO (such as an LP2985 or equivalent) feeding the sensor is recommended. Place a 100 nF ceramic decoupling capacitor as close to pin 1 (VCC) as possible, with a bulk 10 uF tantalum or ceramic cap on the supply rail to handle transient current demands during pressure changes.
The 6-SIP module's male tube port must be mounted with the port facing away from PCB components to allow pneumatic tubing connection. Ensure adequate mechanical support for the through-hole pins because vibration or pressure-induced flexing can introduce measurement error or fatigue the solder joints. For high-vibration environments (such as drones or industrial machinery), consider adding a strain-relief clamp on the tubing at the port entrance.
Route the analog output trace (pin 3) away from digital switching signals, switching power supply nodes, and high-current traces. Use a ground plane under the sensor for shielding, and consider a small RC low-pass filter (1 kohm + 100 nF, giving ~1.6 kHz cutoff) on the output to reduce high-frequency noise if the ADC sampling rate is below 100 Hz. The output impedance of the MPX5050GP is relatively low, so a unity-gain buffer is generally not required for ADC input loads above 10 kohm.
Do not block the vent hole on the rear of the 6-SIP module - this is the gauge reference and blocking it will cause measurement drift with ambient pressure changes. For applications where condensation or contamination is possible, add a hydrophobic filter on the vent port. Also, do not apply pressure exceeding 200 kPa (the maximum overpressure rating) as this can permanently damage the silicon diaphragm.
Compliance Information
RoHS compliant per NXP product page. The MPX5050 family is not AEC-Q100 qualified for automotive applications - choose MPXV5050GP or automotive-specific variants for vehicle designs. Conflict minerals compliance per NXP standard reporting.