MPXAZ4100A6U - 20-105 kPa Absolute Pressure Sensor | NXP
MPN: MPXAZ4100A6U ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $14.5 | $14.50 |
| 10 | $13.05 | $130.50 |
| 100 | $11.6 | $1,160.00 |
| 500 | $10.45 | $5,225.00 |
| 1,000 | $9.3 | $9,300.00 |
MPXAZ4100A6U Overview
A board-mount pressure sensor (also called a pressure transducer or MAP sensor) is a hermetically sealed micro-electromechanical (MEMS) device that converts applied pressure into a calibrated analog voltage. Within the broader sensor taxonomy, absolute pressure sensors sit alongside gauge and differential sensors, and they belong to the larger family of silicon MEMS transducers. The MPXAZ4100A series belongs to the signal-conditioned, temperature-compensated, and factory-calibrated subfamily, removing the need for external amplification or trimming in typical automotive intake-manifold designs.
Key features include on-chip signal conditioning, temperature compensation over -40 °C to +125 °C, and ratiometric analog output that tracks the supply rail, making the output immune to 5 V supply noise. The single 4.85 V to 5.35 V supply, 8-SMD gull-wing leadless package, and absolute pressure port support through-hole reflow assembly while maintaining a small PCB footprint, in line with modern engine-control-unit (ECU) design rules. Output is factory calibrated to 4.9 V at 105 kPa and 0.3 V at 20 kPa with a typical full-scale accuracy within ±1.8 %VFSS.
The MPXAZ4100A6U combines bipolar semiconductor processing with thin-film metallization and advanced micromachining to integrate the strain-gauge bridge, temperature compensation, and calibration network onto a single die. Its ratiometric output rejects power-supply variation, and the integrated port geometry resists common automotive media including fuel vapors and contaminated intake air. Compared with discrete bare-die pressure sensors, it removes board-level signal chain design work and reduces ECU BOM count.
Typical applications include automotive engine control (MAP sensing), HVAC pressure monitoring, barometric correction in GPS/navigation modules, weather stations, industrial pneumatic monitoring, and altitude estimation in drones and handheld instruments. The wide 5 V supply and calibrated ratiometric output allow direct ADC interfacing without external signal conditioning.
When designing with this part, place a 0.01 µF ceramic decoupling capacitor as close to the supply pin as possible and avoid sharp PCB bends in the manifold pressure port to minimize turbulence. The sensor output is ratiometric, so the ADC reference must be tied to the same 5 V rail as VCC for best absolute accuracy; otherwise supply ripple translates directly into pressure-reading error.
This page consolidates distributor pricing, drop-in NXP same-family alternatives, and practical design notes that are not aggregated on a single manufacturer datasheet, shortening the engineer’s substitute-selection workflow.
Drop-in alternatives for MPXAZ4100A6U — 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 MPXAZ4100A6U (same form factor and footprint) — differing in Output Type, Operating Pressure Range, Accuracy, Package / Case, Port Style.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
MPXAZ4100A6T1
✅ Drop-In📋 Reference alternative (not in catalog)
MPXAZ4100AC6U
✅ Drop-In✓ In Stock
$5.45 / Unit
View Datasheet →MPXAZ4115A6U
✅ Drop-In✓ In Stock
$7.1 / Unit
View Datasheet →MPXAZ4250AC6T1
✅ Drop-In📋 Reference alternative (not in catalog)
MPXA4100AC6U
✅ Drop-In✓ In Stock
$10.75 / Unit
View Datasheet →MPXAZ4100A6U Maximum Ratings & Electrical Characteristics
| Sensor Type | Absolute pressure sensor (MAP, manifold absolute pressure) |
| Operating Pressure Range | 20 kPa to 105 kPa (2.9 PSI to 15.23 PSI) |
| Pressure Type | Absolute |
| Output Type | Analog voltage (ratiometric) |
| Output Voltage Range | 0.3 V to 4.9 V |
| Full-Scale Span | 4.6 V nominal (4.9 V - 0.3 V) |
| Supply Voltage (VCC) | 4.85 V to 5.35 V (nominal 5.0 V) |
| Accuracy | ±1.8 %VFSS typical (per datasheet) |
| Operating Temperature | -40 °C to +125 °C |
| Package | 8-SMD Module (gull-wing leadless, surface mount) |
| Port Style | Axial through-hole manifold port (top) |
| Termination Style | PCB (surface mount) |
| Media Compatibility | Dry air and dry non-corrosive gases (media-resistant gel option A6U) |
| Mounting Type | Surface Mount |
MPXAZ4100A6U Pin Configuration
| Pin 1 | VCC — 5 V supply input (4.85 V to 5.35 V) |
| Pin 2 | GND — Ground reference |
| Pin 3 | GND — Ground reference |
| Pin 4 | Vout — Analog ratiometric output (0.3 V to 4.9 V) |
| Pin 5 | NC — Not connected (per datasheet pin map) |
| Pin 6 | NC — Not connected (per datasheet pin map) |
| Pin 7 | NC — Not connected (per datasheet pin map) |
| Pin 8 | NC — Not connected (per datasheet pin map) |
Typical Applications
MPXAZ4100A6U is suitable for 6 applications: Engine Control Unit (MAP Sensing), HVAC and Refrigeration Pressure Monitoring, Barometric Correction in GPS / Navigation, Weather Stations and Environmental Monitoring, Industrial Pneumatic Monitoring, Drone and Handheld Altitude Estimation.
Engine Control Unit (MAP Sensing)
The MPXAZ4100A6U is the canonical engine manifold absolute pressure sensor choice in port-injection ECUs. Its 20-105 kPa absolute span matches atmospheric plus intake depression, so the 0.3-4.9 V ratiometric output maps directly onto the 0-100 kPa gauge manifold pressure that the ECU computes from Vout. With 5 V single-supply operation it interfaces to most 10-bit automotive MCUs without external op-amps. The integrated signal conditioning and -40 °C to +125 °C temperature range cover under-hood conditions, while the media-resistant gel port tolerates fuel vapor and oil mist that would attack bare-die pressure sensors.
Recommended
HVAC and Refrigeration Pressure Monitoring
The MPXAZ4100A6U suits HVAC refrigerant and air-handler pressure monitoring in the 20-105 kPa range, where absolute pressure is required rather than gauge. The calibrated 0.3-4.9 V output drives 0-5 V ADC inputs on building-automation controllers without additional scaling, while the integrated temperature compensation removes the warm-up drift that plagues discrete strain-gauge bridges. The 8-SMD gull-wing package survives standard SMT reflow profiles, enabling fully automated assembly lines for high-volume HVAC controller production.
Recommended
Barometric Correction in GPS / Navigation
GPS altitude accuracy depends critically on local barometric pressure, and the MPXAZ4100A6U delivers calibrated absolute pressure over the 20-105 kPa weather range. Its ratiometric 5 V output pairs well with navigation modules already running at 5 V analog rails, and the -40 °C to +125 °C operating range covers outdoor and in-vehicle deployments. The integrated temperature compensation maintains ±1.8 %VFSS accuracy across dawn-to-dusk thermal swings, which directly translates into meter-class altitude stability when the barometric correction is fed back into the GPS engine.
Recommended
Weather Stations and Environmental Monitoring
Personal and industrial weather stations rely on absolute barometric pressure as their primary forecast input. The MPXAZ4100A6U provides a calibrated 20-105 kPa span that matches global sea-level-to-mountain atmospheric pressure, with ratiometric output that rejects battery-rail drift as the supply sags at low charge. The surface-mount 8-SMD form factor drops into solar-powered weather sensor PCBAs, and the integrated temperature compensation removes the active-heater requirement that bare-die pressure sensors impose, lowering average power draw for battery-operated field stations.
Recommended
Industrial Pneumatic Monitoring
Factory automation cabinets monitor compressed-air line pressure between 0 and 10 bar gauge; the MPXAZ4100A6U is well-matched for the vacuum-to-low-pressure portion of that range (20-105 kPa absolute). Its 5 V ratiometric output integrates directly with industrial PLC analog-input modules, while the media-resistant gel port tolerates water vapor and oil aerosols common in shop-air lines. The -40 °C to +125 °C specification spans unheated industrial enclosures, removing the need for thermal conditioning circuitry around the sensor.
Recommended
Drone and Handheld Altitude Estimation
Consumer drones and outdoor handhelds fuse barometric altitude with GPS for terrain-following and stair-tracking. The MPXAZ4100A6U supplies calibrated absolute pressure at low weight and small footprint, its 0.3-4.9 V output feeding directly into the Li-Po-derived 5 V ADC rails common in those designs. Temperature compensation maintains altitude lock across hot-takeoff to high-altitude flight profiles, while the surface-mount package simplifies assembly on weight-constrained flight-controller boards. Cross-reference with the MPXAZ4115A6U is suggested for altitudes above 2000 m where the upper span begins to limit dynamic range.
Recommended
Recommended Products Summary
Engineering reference data for MPXAZ4100A6U — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | MPXAZ4100A6T1 | MPXAZ4100AC6U | MPXAZ4115A6U | MPXAZ4250AC6T1 | MPXA4100AC6U |
|---|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 8-SMD Module (gull-wing) | 8-SMD Module (gull-wing) | 8-SMD Module (gull-wing) | 8-SMD Module (gull-wing) | 8-SMD Module (gull-wing) | 8-SMD Module (gull-wing) |
| Pressure Range | 20-105 kPa (2.9-15.23 PSI) | 20-105 kPa (same) | 20-105 kPa (same) | 20-115 kPa (extended) | 20-250 kPa (extended) | 20-105 kPa (same) |
| Supply Voltage | 4.85 V to 5.35 V | 4.85 V to 5.35 V | 4.85 V to 5.35 V | 4.85 V to 5.35 V | 4.85 V to 5.35 V | 4.85 V to 5.35 V |
| Pressure Type | Absolute | Absolute | Absolute | Absolute | Absolute | Absolute |
| Media-Resistant Gel Port | Yes (A6U / "Z" variant) | Yes (gel port, T&R packing) | Yes (gel port, calibration C6U) | Yes (gel port) | Yes (gel port, T&R packing) | No (no "Z"; non-gel port) |
| 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 |
Key Differentiators
- Media-resistant gel port option (A6U "Z" variant) (vs MPXA4100AC6U)
- Calibrated 0.3-4.9 V span for 20-105 kPa absolute (vs MPXAZ4115A6U)
- 8-SMD gull-wing leadless package with axial port (vs MPX4100AP)
Design Notes
Place a 0.01 µF to 0.1 µF ceramic decoupling capacitor as close as physically possible to the VCC pin (pin 1), with a wide ground return. The ratiometric output tracks VCC, so any switching noise on the 5 V rail appears directly on Vout; using a linear LDO (e.g., NCP1117 or LM7805) upstream of the sensor is recommended in noisy ECU environments. Do not daisy-chain the sensor VCC from a digital IC supply rail; provide a dedicated analog 5 V net wherever possible.
Position the axial manifold pressure port vertically above any PCB components and provide at least 5 mm of clearance around the port for proper O-ring sealing if used. Avoid locating heat-generating devices (DC-DC converters, power resistors, MCU) within 10 mm of the package to prevent thermal gradient across the gel diaphragm, which would degrade the temperature-compensated transfer function. Recommended: keep the sensor on the perimeter of the PCBA, near an edge or external manifold fitting.
Do not use the MPXAZ4100A6U as a drop-in for the MPX4100AP: the MPX4100AP is a SIP-6 through-hole device while the MPXAZ4100A6U is 8-SMD; PCB redesign is required. For identical 20-105 kPa 8-SMD pins choose the MPXAZ4100A6T1 or MPXAZ4100AC6U. Do not expose the port to liquid water without a separate IP-rated manifold; the gel protects against vapor-phase media only. Verify the ADC reference voltage is tied to the same 5 V rail that powers the sensor to preserve ratiometric accuracy.
Compliance Information
Compliance values (RoHS, REACH, AEC-Q100, lead-free, halogen-free, conflict-minerals) were not explicitly stated in the retrieved Verified Web Data and are marked unknown per Data Authenticity Rule 14. Consult the NXP product compliance record at https://www.nxp.com for authoritative environmental disclosure.
