MPXHZ6115A6U - 15-115 kPa Absolute Pressure Sensor | NXP
MPN: MPXHZ6115A6U ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $14.5 | $14.50 |
| 10 | $13.1 | $131.00 |
| 100 | $10.95 | $1,095.00 |
| 500 | $9.2 | $4,600.00 |
| 1,000 | $8.1 | $8,100.00 |
MPXHZ6115A6U Overview
An absolute pressure sensor is a transducer that measures pressure relative to a sealed internal vacuum reference rather than ambient atmospheric pressure. In the broader taxonomy, absolute pressure sensors fall under pressure sensors -> sensors -> signal-conditioning semiconductors. The internal vacuum reference means the output remains accurate regardless of ambient atmospheric changes, which is essential for altitude-sensing, sealed manifold absolute pressure (MAP) readings, barometric measurements, and any application where a stable vacuum baseline is required.
Key features of the MPXHZ6115A6U include integrated temperature compensation from -40 °C to +125 °C, factory calibration for high accuracy across the operating range, and a ratiometric analog output that scales with supply voltage. The 8-SOIC surface-mount package (SOP 8) provides a robust molded carrier with an integrated pressure port, and the "U" suffix designates a Tube packing option. The HZ in the suffix indicates the high-impedance / Media Resistant gel variant, distinct from the MPXH6115A6U which uses standard Fluorosilicon gel.
The architecture combines a micromachined silicon diaphragm, a Wheatstone-bridge piezoresistive strain gauge, on-chip bipolar amplification, and thin-film calibration resistors. The single-rail 5 V supply and 0.2-4.7 V output swing are designed to interface directly with an ADC input of an automotive ECU, industrial controller, or microcontroller without additional analog front-end components.
Typical applications include automotive manifold absolute pressure (MAP) sensing, barometric/altitude measurement in portable GPS and weather stations, HVAC duct pressure monitoring, industrial pneumatic system monitoring, sealed enclosure integrity testing, medical respiratory equipment, and drone altitude hold systems. Designers frequently pair the MPXHZ6115A6U with a microcontroller's 5 V ADC input or an external 12-bit ADC front-end for digitizing the output.
When designing with this part, place a 0.1 µF decoupling capacitor as close to the VCC pin as possible and ensure the pressure port is sealed against contamination with a properly rated elastomeric gasket. The Media Resistant gel variant tolerates moisture, oil, and automotive fluids, so it is preferred over the Fluorosilicon gel MPXH6115A6U when the sensor may contact fuel vapor or refrigerant. Note that the output is ratiometric - any change in VCC scales the output proportionally, so the ADC reference should be tied to the same 5 V rail for highest accuracy.
This page synthesizes distributor pricing, drop-in alternatives from the same NXP MPXxx6115A family, and practical design notes that engineers need when sourcing an automotive-grade absolute-pressure sensor.
Drop-in alternatives for MPXHZ6115A6U — 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 MPXHZ6115A6U (same form factor and footprint) — differing in Package, Output Voltage Range, Operating Pressure Range, Accuracy, Port Style.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
MPXHZ6115AC6U
✅ Drop-In✓ In Stock
$7.25 / Unit
View Datasheet →MPXHZ6116A6U
✅ Drop-In✓ In Stock
$6.97 / Unit
View Datasheet →MPXH6115A6U
✅ Drop-In✓ In Stock
$9.95 / Unit
View Datasheet →MPXH6115A6T1
✅ Drop-In✓ In Stock
$6.45 / Unit
View Datasheet →MPXHZ6115A6T1
✅ Drop-In✓ In Stock
$10.85 / Unit
View Datasheet →MPXA6115A6U
✅ Drop-In✓ In Stock
$10.8 / Unit
View Datasheet →MPXHZ6115A6U Maximum Ratings & Electrical Characteristics
| Pressure Type | Absolute |
| Operating Pressure Range | 15 kPa to 115 kPa (2.18 psi to 16.68 psi) |
| Output Type | Analog voltage (ratiometric) |
| Output Voltage Range | 0.2 V to 4.7 V |
| Supply Voltage | 5 V (typical) |
| Operating Temperature | -40 °C to +125 °C |
| Temperature Compensation | Integrated (on-chip) |
| Package | 8-SOIC (0.295", 7.50 mm width) - SOP 8 |
| Mounting Type | Surface Mount |
| Pressure Port | Single axial port (top) |
| Gel Type | Media Resistant (HZ suffix) |
| RoHS Status | Compliant |
| Packaging Option | Tube (U suffix) |
MPXHZ6115A6U Pin Configuration
| Pin 1 | VCC — 5 V supply voltage |
| Pin 2 | VOUT — Analog ratiometric pressure output (0.2 V to 4.7 V) |
| Pin 3 | GND — Ground |
| 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
MPXHZ6115A6U is suitable for 7 applications: Automotive Manifold Absolute Pressure (MAP) Sensing, Barometric Altitude Measurement, Industrial Pneumatic System Monitoring, HVAC Duct Pressure Monitoring, Medical Respiratory and CPAP Equipment, Sealed Enclosure Integrity / Leak Testing, Drone Altitude Hold and Stabilization.
Automotive Manifold Absolute Pressure (MAP) Sensing
The MPXHZ6115A6U is purpose-built for automotive MAP ECU inputs. Its 15-115 kPa absolute range perfectly spans engine vacuum at idle (~30 kPa) through atmospheric (~100 kPa) to boost (~115 kPa), and the 0.2-4.7 V ratiometric output is scaled for direct connection to a 5 V ADC. The Media Resistant gel tolerates fuel vapor and crankcase gases that vent back through the intake, while the -40 °C to +125 °C operating range handles under-hood temperature swings.
Recommended
Barometric Altitude Measurement
Used in portable GPS modules, drones, and weather stations, the MPXHZ6115A6U measures absolute barometric pressure for altitude calculation via the standard hypsometric formula. The 15 kPa floor supports altitudes up to roughly 9000 m above sea level, while the 4.7 V full-scale output provides high ADC resolution per meter of altitude. The Media Resistant gel tolerates the high-humidity environments that handheld GPS devices encounter in field use.
Recommended
Industrial Pneumatic System Monitoring
Factory pneumatic lines running between 0 and 8 bar gauge pressure sit within the MPXHZ6115A6U's absolute window when the line is vented to atmosphere. The on-chip temperature compensation from -40 °C to +125 °C supports unheated factory cabinets, and the 5 V single-rail supply draws modest current. Media Resistant gel allows exposure to compressor oils and condensed moisture in plant air, extending service life over gel-less transducers.
Recommended
HVAC Duct Pressure Monitoring
Building HVAC ducts operate between ~80 kPa and ~110 kPa absolute, falling squarely within the MPXHZ6115A6U's range. The 0.2-4.7 V output feeds directly into a 24-bit ADC or HVAC controller for filter-clog detection, fan performance verification, and airflow calibration. Unlike harsh-environment sensors, the Media Resistant gel protects against moisture and mold spores that accumulate in ductwork over years of service.
Recommended
Medical Respiratory and CPAP Equipment
In CPAP machines and ventilators, the MPXHZ6115A6U monitors patient-circuit pressure between ~30 kPa and ~110 kPa to deliver feedback-controlled airflow. The Media Resistant gel tolerates humidified breathing air without premature degradation, and the ratiometric output aligns with medical-grade ADCs. The wide -40 °C to +125 °C range supports the warm-up transients of heated humidifiers in clinical settings.
Recommended
Sealed Enclosure Integrity / Leak Testing
For leak-testing sealed enclosures (battery enclosures, hermetic optoelectronic modules, IP-rated appliance housings), the MPXHZ6115A6U's absolute-pressure reference detects pressure decay as the enclosure is evacuated or pressurized. The 4.7 V full-scale spans roughly a 14% pressure window at sea level, providing excellent resolution for detecting micro-leaks. The Media Resistant gel survives repeated test cycles with soap-bubble or helium-spray contact.
Recommended
Drone Altitude Hold and Stabilization
Multirotor drones use the MPXHZ6115A6U as part of a barometric altitude-hold loop. The Media Resistant gel tolerates propeller downwash containing moisture and oil, and the 100 Hz output bandwidth reacts fast enough for altitude-loop dynamics. The 8-SOIC surface-mount package integrates cleanly into flight-controller PCBs, and the ratiometric 5 V output is compatible with typical STM32 / ESP32 FC ADC inputs.
Recommended
Engineering reference data for MPXHZ6115A6U — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | MPXHZ6115AC6U | MPXHZ6116A6U | MPXH6115A6U | MPXH6115A6T1 | MPXHZ6115A6T1 | MPXA6115A6U |
|---|---|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 8-SOIC (7.50 mm) | 8-SOIC (7.50 mm) - same | 8-SOIC (7.50 mm) - same | 8-SOIC (7.50 mm) - same | 8-SOIC (7.50 mm) - same | 8-SOIC (7.50 mm) - same | 8-SOIC (7.50 mm) - same |
| Pressure Range | 15 to 115 kPa | 15 to 115 kPa | 10 to 120 kPa | 15 to 115 kPa | 15 to 115 kPa | 15 to 115 kPa | 15 to 115 kPa |
| Output Voltage | 0.2 to 4.7 V | 0.2 to 4.7 V | 0.2 to 4.7 V | 0.2 to 4.7 V | 0.2 to 4.7 V | 0.2 to 4.7 V | 0.2 to 4.7 V |
| Gel Type | Media Resistant (HZ) | Media Resistant | Media Resistant | Fluorosilicon (H) | Fluorosilicon (H) | Media Resistant | Media Resistant |
| Supply Voltage | 5 V typical | 5 V | 5 V | 5 V | 5 V | 5 V | 5 V |
| Packaging | Tube (U) | Tube | Tube | Tube | Tape & Reel | Tape & Reel | Tube |
| 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 |
Key Differentiators
- Media Resistant gel tolerates fuel vapor and moisture (vs MPXH6115A6U)
- Wide pressure range suited for altitude sensing (vs MPXHZ6116A6U)
- On-chip temperature compensation from -40 °C to +125 °C (vs Discrete strain-gauge modules)
Design Notes
Decouple the VCC pin with a 0.1 µF ceramic capacitor placed within 5 mm of the package, ideally directly adjacent to pin 1. Because the output is ratiometric to VCC, any supply noise above ~1 kHz couples directly into the output. For best noise performance in 12-bit ADC applications, derive the ADC reference from the same 5 V rail powering the sensor rather than a separate regulator.
Do not assume the output is at 0 V when below 15 kPa - the sensor will physically output the voltage corresponding to the lower clamp, but accuracy degrades and the gel/die may be damaged below the absolute floor of 10 kPa for sustained periods. Ensure system mechanical design keeps applied pressure within the rated 15-115 kPa window in all dynamic conditions including vibration-induced spikes.
Route the analog output trace away from switching converters and digital clocks. Keep the trace short and ground it with a low-impedance ground plane directly under the SOIC body. Avoid routing the analog output near I²C, SPI, or PWM signals; if cross-routing is unavoidable, place ground-fill between the traces and surround the analog trace with a tight stitching via fence.
Compliance Information
RoHS and REACH compliance signaled via NXP product page. AEC-Q100 status not explicitly listed in available snippets - flagged as unknown pending verification against NXP product PCN documents. Lead-free and halogen-free per NXP standard assembly guidelines.
