MPXH6250AC6U - 20-250kPa Absolute Pressure Sensor, 8-SSOP | NXP
MPN: MPXH6250AC6U ✗ End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $9.85 | $9.85 |
| 10 | $8.95 | $89.50 |
| 100 | $7.63 | $763.00 |
| 500 | $6.8 | $3,400.00 |
| 1,000 | $6.05 | $6,050.00 |
MPXH6250AC6U Overview
What is a piezoresistive pressure sensor? A piezoresistive pressure sensor is a micromachined silicon die whose bridge resistance changes proportionally to applied pressure, producing a differential voltage that is then amplified, temperature-compensated, and calibrated on-chip to deliver a high-level analog output. The MPXH6250AC6U belongs to the integrated pressure sensor family within the broader board-mount sensor hierarchy (pressure sensor -> MEMS sensor -> transducer), combining MEMS micromachining, thin-film metallization, and bipolar op-amp circuitry in a single monolithic die.
Key features include 0.3 V to 4.9 V ratiometric analog output (5 V supply), 20.4 mV/kPa typical sensitivity, ±1.5% maximum pressure error over 0 °C to 85 °C, AEC-Q100 qualification for under-hood automotive applications, and on-chip temperature compensation from -40 °C to +125 °C. The single 5 V supply simplifies power design, while the ratiometric output enables direct ADC interfacing without precision references.
The MPXH6250AC6U employs a monolithic piezoresistive bridge whose differential output is amplified by an on-chip bipolar op-amp stage. Thin-film laser-trimmed resistor networks set the offset (0.20 V at 0 kPa), full-scale span, and temperature compensation coefficients, eliminating the need for external calibration components. The integrated construction provides EMI/RFI hardening, ESD protection to 2 kV HBM, and stable behavior across automotive temperature profiles.
Typical applications include engine control manifold absolute pressure (MAP) sensing, barometric pressure measurement for engine management, HVAC blower control, weather station instrumentation, and industrial process monitoring. The top axial port with 0.13" (3.3 mm) tube stub allows direct pneumatic connection to manifold or vent references.
Design consideration: provide a clean, well-decoupled 5.0 V ±0.25 V supply and configure the host ADC for the 0.3 V to 4.9 V swing. Avoid mechanical stress on the SSOP body that could shift the offset; mount with the port vertically oriented and isolate vibration sources.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone, giving engineers a single source for selection, sourcing, and BOM optimization.
Drop-in alternatives for MPXH6250AC6U — 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 MPXH6250AC6U (same form factor and footprint) — differing in Output Type, Supply Voltage, Operating Temperature, Pressure Type, Package.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
MPXHZ6250AC6T1
✅ Drop-In✓ In Stock
$7.1 / Unit
View Datasheet →MPXH6250AC6T1
✅ Drop-In✓ In Stock
$5.95 / Unit
View Datasheet →MPXH6250AC6
✅ Drop-In📋 Reference alternative (not in catalog)
MPXH6250AC6U Maximum Ratings & Electrical Characteristics
| Pressure Type | Absolute |
| Operating Pressure Range | 20 kPa to 250 kPa (2.9 PSI to 36.26 PSI) |
| Output Type | Analog Voltage |
| Output Voltage Range | 0.3 V to 4.9 V |
| Nominal Offset | 0.20 V (at 0 kPa) |
| Sensitivity | 20.4 mV/kPa (typical) |
| Supply Voltage | 5.0 V (typical) |
| Pressure Accuracy | ±1.5% (max, 0 °C to 85 °C) |
| Operating Temperature | -40 °C to +125 °C |
| Temperature Compensation | On-chip, -40 °C to +125 °C |
| Package | 8-SSOP (Case 1737), Top Axial Port |
| Port Type | Male - 0.13" (3.3 mm) tube, axial top |
| Mounting Type | Surface Mount |
| AEC-Q100 Qualification | Qualified (automotive grade) |
| RoHS Status | Compliant |
MPXH6250AC6U Pin Configuration
| Pin 1 | VCC — 5 V supply input |
| Pin 2 | GND — Ground |
| Pin 3 | VOUT — Analog ratiometric output (0.3 V to 4.9 V) |
| 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
MPXH6250AC6U is suitable for 7 applications: Engine Manifold Absolute Pressure (MAP) Sensing, Barometric Pressure Measurement for Weather Stations, HVAC Blower and Duct Pressure Monitoring, Hydraulic and Pneumatic System Monitoring, Medical Respiratory and CPAP Pressure Monitoring, Drone Altitude and Air Data Sensing, Process Control and Tank Pressure Monitoring.
Engine Manifold Absolute Pressure (MAP) Sensing
The MPXH6250AC6U's 20-250 kPa absolute pressure range and 0.3-4.9 V ratiometric analog output map directly onto the typical MAP sensor requirement of 20 kPa (engine vacuum at idle) to ~250 kPa (boosted or wide-open throttle). With ±1.5% pressure accuracy from 0-85 °C and AEC-Q100 qualification, it is well-suited to under-hood automotive engine control units where manifold pressure drives fuel injection timing and EGR valve positioning. The integrated temperature compensation eliminates the thermistor lookup tables that discrete bridge sensors require, while the 5 V single-supply operation drops straight into legacy ECU analog front-ends. Designers should connect the top axial port to the manifold via a 3.3 mm ID silicone hose and provide a low-impedance ground return to minimize offset drift across temperature.
Recommended
Barometric Pressure Measurement for Weather Stations
The MPXH6250AC6U's 20-250 kPa absolute range is ideal for barometric weather instrumentation, where ambient pressures from 87 kPa (storm) to 108 kPa (high-pressure ridge) must be resolved to better than 0.1 kPa for forecasting. The 20.4 mV/kPa sensitivity on a 5 V supply gives ~2 mV per 0.1 kPa - directly readable by a 12-bit ADC with no amplification. On-chip temperature compensation across -40 °C to +125 °C ensures outdoor weather stations maintain accuracy through seasonal extremes. The 8-SSOP top-port package enables a sealed weatherproof enclosure with the pneumatic port on the outer wall. Power consumption is dominated by the on-chip amplifier (~few mA), making it less suited to battery-only weather stations; pair with a sleep-cycled ADC for long-term field deployments.
Recommended
HVAC Blower and Duct Pressure Monitoring
The MPXH6250AC6U suits HVAC duct pressure monitoring where differential pressures of 0-10 kPa across filters and coils must be measured against absolute duct pressure in the 80-120 kPa range. The 20-250 kPa span comfortably encompasses typical supply and return duct pressures. The ratiometric 0.3-4.9 V output interfaces directly to HVAC controller ADCs without level shifting. The integrated temperature compensation keeps readings stable across mixed-temperature air streams from cooling coils to heating elements. The top-port design allows the pneumatic line to connect from above, simplifying the PCB layout in densely packed air-handler enclosures. Designers should add a small inline mesh filter to prevent dust contamination of the axial port.
Recommended
Hydraulic and Pneumatic System Monitoring
For low-pressure industrial hydraulics and pneumatic systems operating below 250 kPa, the MPXH6250AC6U provides a rugged AEC-Q100-qualified sensing element with on-chip amplification. The 20-250 kPa range covers most compressed-air distribution lines (typically 600-1000 kPa - note: this sensor is limited to 250 kPa so it suits only low-pressure pneumatic lines and vacuum systems rather than full hydraulics). The 8-SSOP package and top axial port simplify the pneumatic manifold interface. Integrated ESD protection to 2 kV HBM and EMI hardening per NXP testing enable deployment near motor drives and solenoid coils without additional filtering. For system health monitoring, the ratiometric output pairs naturally with industrial 5 V analog I/O modules.
Recommended
Medical Respiratory and CPAP Pressure Monitoring
The MPXH6250AC6U's 20-250 kPa range and on-chip temperature compensation make it suitable for medical respiratory equipment such as CPAP/BiPAP machines and spirometers that monitor airway pressures in the 0-25 kPa typical therapeutic range. The 0.3-4.9 V analog output integrates directly into medical front-end analog signal chains, while the integrated calibration eliminates per-unit trim that would otherwise inflate BOM cost. The AEC-Q100 automotive-grade pedigree - while not a medical certification - reflects high-reliability silicon suitable for FDA-cleared designs when paired with appropriate risk management. Designers must implement patient-side isolation barriers per IEC 60601-1 and add redundant pressure monitoring as required for the device classification.
Recommended
Drone Altitude and Air Data Sensing
For fixed-wing drones and UAVs that need absolute barometric altitude reference, the MPXH6250AC6U's 20-250 kPa range covers sea level to ~10 km altitude with the 20.4 mV/kPa sensitivity providing ~1.5 m per ADC LSB on a 12-bit converter. The AEC-Q100 qualification provides vibration and temperature survivability needed for airborne platforms. The 8-SSOP package weighs only ~0.1 g - negligible for UAV payload budgets. However, the ~few mA supply current rules out extended battery-powered flight; designers should duty-cycle the sensor with a low-leakage analog switch. For higher-resolution barometric altitude in the 30-110 kPa range, a dedicated BMP280-class sensor may be more appropriate.
Recommended
Process Control and Tank Pressure Monitoring
The MPXH6250AC6U fits closed-tank absolute pressure monitoring in chemical processing, where vessels operate from rough vacuum (20 kPa) to moderate positive pressures (250 kPa). The on-chip signal conditioning delivers a robust 0.3-4.9 V signal that can drive long industrial cabling when paired with a current-loop transmitter. AEC-Q100-grade temperature hardening ensures stable operation in process plant environments with ambient swings. The integrated 0.20 V offset eliminates the need for external nulling trim, and the laser-trimmed thin-film calibration network holds ±1.5% accuracy over years of service. For hazardous-area deployment, add appropriate intrinsically safe barriers and verify that the sensor's ESD/EMI hardening meets the plant's surge immunity requirements.
Recommended
Recommended Products Summary
Engineering reference data for MPXH6250AC6U — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | MPXHZ6250AC6T1 | MPXH6250AC6T1 | MPXH6250A6U | MPXH6250AC6 | MPXH6250A6 |
|---|---|---|---|---|---|---|
| Package | 8-SSOP (Case 1737) | 8-SSOP (Case 1737) - same | 8-SSOP (Case 1737) - same | 8-SOIC (7.50 mm) - narrower | 8-SSOP (Case 1737) - same | 8-SOIC - different footprint |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | STMicroelectronics | STMicroelectronics |
| Pressure Range | 20-250 kPa | 20-250 kPa | 20-250 kPa | 20-250 kPa | 20-250 kPa | 20-250 kPa |
| Output Voltage | 0.3 V to 4.9 V | 0.3 V to 4.9 V | 0.3 V to 4.9 V | 0.3 V to 4.9 V | 0.3 V to 4.9 V | 0.3 V to 4.9 V |
| Supply Voltage | 5.0 V | 5.0 V | 5.0 V | 5.0 V | 5.0 V | 5.0 V |
| Sensitivity | 20.4 mV/kPa | 20.4 mV/kPa | 20.4 mV/kPa | 20.4 mV/kPa | 20.4 mV/kPa | 20.4 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 |
| AEC-Q100 | Qualified | Qualified | Qualified | Qualified | Qualified | Qualified |
| Port Type | Top axial, 3.3 mm tube | Top axial, 3.3 mm tube | Top axial, 3.3 mm tube | No port (gauge die only) | Top axial, 3.3 mm tube | No port (gauge die only) |
| Packing | Tube (55 pcs) | Tape & Reel (1000 pcs) | Tape & Reel | Tube / Rail | Tube | Tube |
Key Differentiators
- On-chip signal conditioning and calibration (vs MPXHZ6250AC6T1)
- Top axial port with 3.3 mm tube stub (vs MPXH6250A6U)
- Wide 20-250 kPa range with ratiometric output (vs Discrete bridge sensor + external amplifier)
Design Notes
Provide a clean 5.0 V ±0.25 V supply and decouple VCC to ground with a 100 nF ceramic capacitor placed within 5 mm of the device pin. The MPXH6250AC6U output is ratiometric to VCC, so any supply ripple directly couples to the pressure reading. For ADC-referenced designs, derive the ADC reference from the same 5 V rail as the sensor to preserve the ratiometric behavior and reject supply noise.
Mount the device with the top axial port oriented vertically and isolate the package from mechanical stress: avoid flexing the SSOP body during PCB assembly, and use strain-relief on any pneumatic tubing. Keep the analog output trace short and shielded from digital switching nodes to preserve the 0.3-4.9 V swing resolution. Maintain a continuous ground pour under the device to provide thermal mass and EMI shielding.
Buffer the analog output if the host ADC has a sample-and-hold kickback that exceeds 1 mA transient - the on-chip amplifier is not designed to drive long capacitive busses. Place a series resistor (1 kΩ) at the sensor output followed by an external op-amp buffer when driving long cables or high-capacitance loads, especially in industrial 4-20 mA loop conversions.
Do not exceed the maximum operating pressure of 250 kPa or apply reverse polarity to VCC. The device is designed for absolute (not differential or gauge-only) measurement - attempting to read below 0 kPa absolute will produce incorrect output. Confirm port orientation before PCB layout: the top axial port faces away from the PCB, so the board sits flat in the final assembly.
Compliance Information
AEC-Q100 qualified per NXP product family documentation. EOL announced end of 2021; last-time-buy options may be limited.
