MPXHZ6400A6T1 - 20-400kPa Absolute Pressure Sensor | NXP
N.º de pieza: MPXHZ6400A6T1 ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $9.5 | $9,50 |
| 10 | $8.55 | $85,50 |
| 100 | $7.59 | $759,00 |
| 500 | $6.92 | $3.460,00 |
| 1.000 | $6.2 | $6.200,00 |
| 3.000 | $5.74 | $17.220,00 |
MPXHZ6400A6T1 Descripción general
An absolute pressure sensor is a transducer that measures pressure relative to a perfect vacuum rather than to ambient atmospheric pressure, making it ideal for sealed-system applications where the absolute reference must remain stable regardless of weather or altitude changes. Absolute pressure sensors belong to the broader family of MEMS (Micro-Electro-Mechanical Systems) pressure transducers, which sit within the sensor hierarchy of measurement semiconductors, and they are widely used where altitude, barometric, or sealed-cavity pressure must be quantified.
Key features include ±1.5% accuracy over 0 °C to 85 °C, a temperature-compensated output spanning the full 20 kPa to 400 kPa range, media-resistant packaging tolerant of humid air and non-corrosive gases, and high electromagnetic immunity thanks to on-chip bipolar op-amp buffering. The integrated thin-film resistor network performs offset, span, and temperature calibration at the factory, eliminating the need for external compensation components.
The sensor integrates a MEMS silicon diaphragm with a Wheatstone-bridge piezoresistor network. Differential strain on the diaphragm produces a differential bridge output that is amplified by the on-chip op-amp stage to the standard 0.2 V to 4.8 V full-scale ratiometric swing. Because the output is ratiometric to VCC, supply noise is rejected naturally and no precision voltage reference is required downstream.
Typical applications include engine control manifold absolute pressure (MAP) sensing, barometric pressure measurement for weather stations and altimeters, HVAC system pressure monitoring, medical respiratory equipment, and industrial process control. Designers value the integrated calibration because it removes per-unit trimming during production and shortens time-to-market.
When designing with this device, route the analog output through an RC low-pass filter (typically 1 kΩ and 100 nF) to attenuate high-frequency noise before the ADC input. The exposed axial port should be sealed with an O-ring and protected from liquid ingress, which can damage the MEMS element.
This page synthesizes distributor pricing, package-pin pinout details, drop-in alternatives, and practical design notes for the MPXHZ6400A6T1 that are not consolidated in the manufacturer datasheet.
Alternativas directas para MPXHZ6400A6T1 — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
Variantes de esta serie
Modelos de la misma serie compatibles directamente con MPXHZ6400A6T1 (mismo factor de forma y huella) — difiere en Package, Output Type, Accuracy, Port Style, Supply Voltage.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
MPXH6400AC6T1
✅ Sustitución directa✓ En stock
$5.25 / unidad
Ver hoja de datos →MPXH6400AC6U
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
MPXH6400A6U
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
MPXH6400A6T1
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MPXH6400A6T1A
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MPXHZ6400A6T1 Valores máximos y características eléctricas
| Pressure Type | Absolute |
| Operating Pressure Range | 20 kPa to 400 kPa (2.9 PSI to 58.02 PSI) |
| Tipo de salida | Analog Voltage |
| Rango de tensión de salida | 0.2 V to 4.8 V |
| Tensión de alimentación | 4.64 V to 5.36 V (5 V nominal) |
| Accuracy | ±1.5% (0°C to 85°C) |
| Port Style | Axial, Male - 0.13" (3.3 mm) |
| Encapsulado | 8-SSOP (Super Small Outline Package), 0.295" (7.50 mm) width |
| Temperatura de funcionamiento | -40 °C to +125 °C |
| Tipo de montaje | Surface Mount |
| Port Size | 0.13 inch (3.3 mm) |
| Output Type Detail | Ratiometric analog voltage |
| Media Compatibility | Dry air, non-corrosive gases (media resistant) |
| Temperature Compensation | On-chip, factory calibrated |
| Estado RoHS | Compliant |
Configuración de pines de MPXHZ6400A6T1
| Pin 1 | VCC — 5 V supply input |
| Pin 2 | VOUT — Ratiometric analog output (0.2 V to 4.8 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) |
Aplicaciones típicas
MPXHZ6400A6T1 es adecuado para 7 aplicacións: Engine Manifold Absolute Pressure (MAP) Sensing, Barometric Pressure and Altimeter Measurement, HVAC System Pressure Monitoring, Medical Respiratory Equipment, Industrial Process Control, Drone and UAV Altitude Hold, Weather Station Instrumentation.
Engine Manifold Absolute Pressure (MAP) Sensing
The MPXHZ6400A6T1 is ideally suited for engine control unit MAP sensing in automotive and powersport applications where the manifold vacuum and boost pressure must be measured across 20 kPa to 400 kPa absolute. Its 0.2 V to 4.8 V ratiometric analog output feeds directly into the ECU's 5 V-referenced ADC, eliminating the need for signal conditioning or scaling resistors. The ±1.5% accuracy over 0 °C to 85 °C is sufficient for closed-loop fuel control, while the on-chip temperature compensation removes per-engine trimming. Designers typically place an RC low-pass filter (1 kΩ + 100 nF) at the ADC input and shield the analog trace from the ignition coil driver. Unlike bare MEMS die, the integrated media-resistant gel coating tolerates humid intake air without a separate inline filter.
Recomendado
Barometric Pressure and Altimeter Measurement
For weather stations, drones, and outdoor altimeters, the MPXHZ6400A6T1's 20 kPa to 400 kPa absolute range precisely covers the barometric pressure band from sea-level (~101 kPa) up to roughly 3.5 km altitude (~67 kPa) and below sea level. The on-chip bipolar op-amp and thin-film calibration network provide the low-noise output required to resolve 0.1 kPa altitude changes in firmware. Because the output is ratiometric to VCC, designers should read VCC through a precision ADC channel and normalize the pressure output in software for accurate altitude calculation. The 8-SSOP package is small enough to fit handheld enclosures, and the axial port accepts a flexible tube routed to outside air.
Recomendado
HVAC System Pressure Monitoring
In HVAC and refrigeration systems, the MPXHZ6400A6T1 monitors refrigerant line pressures, duct static pressure, and filter differential pressure references across its 20 kPa to 400 kPa range. The 5 V ratiometric output integrates directly with 5 V microcontroller ADCs commonly used in HVAC controllers, and the ±1.5% accuracy over the full 0 °C to 85 °C operating range ensures stable readings despite wide temperature swings in plant rooms. The media-resistant gel coating handles humid air and condensate exposure at the duct sensor location. Engineers should apply conformal coating to the PCB near the axial inlet to prevent long-term moisture ingress that could degrade the MEMS diaphragm.
Recomendado
Medical Respiratory Equipment
The MPXHZ6400A6T1 supports medical CPAP, ventilator, and spirometer designs that require accurate absolute pressure measurement in the 20 kPa to 400 kPa range. Its integrated temperature compensation and factory calibration eliminate the per-device trimming that complicates medical device manufacturing, while the 0.2 V to 4.8 V analog output feeds simple 12-bit ADCs in the ventilator controller. The bipolar op-amp output stage provides low output impedance, which is essential for driving the long shielded cables often used in clinical settings. For patient-contact airflow paths, designers must add an external hydrophobic filter upstream of the sensor port to prevent contamination of the media-resistant gel.
Recomendado
Industrial Process Control
For industrial process control loops, the MPXHZ6400A6T1 measures tank head pressure, vacuum chamber pressure, and pneumatic line pressure in 20 kPa to 400 kPa absolute applications. The integrated signal conditioning and calibration reduce bill-of-material cost and simplify EMC compliance, while the surface-mount 8-SSOP package supports automated assembly. The 4.64 V to 5.36 V supply range allows direct connection to 5 V industrial rails with simple decoupling. Engineers should add TVS protection on the supply pin and a series resistor on the output to survive plant-level ESD and surge events.
Recomendado
Drone and UAV Altitude Hold
In small drones and UAVs, the MPXHZ6400A6T1 provides absolute barometric altitude reference for altitude-hold flight controllers across the 20 kPa to 400 kPa band. Its small 8-SSOP footprint fits inside tight flight-controller PCBs, and the low current consumption preserves battery endurance. The output is sampled by a 12-bit ADC at typically 50 Hz to feed the PID altitude loop. Designers should mount the sensor away from prop wash to prevent dynamic pressure errors, and should add a foam windscreen over the axial port to filter gusts during aggressive maneuvers.
Recomendado
Weather Station Instrumentation
For professional and hobbyist weather stations, the MPXHZ6400A6T1 delivers absolute barometric pressure data in the 20 kPa to 400 kPa range that drives barometric trend graphs and forecast algorithms. The factory-calibrated ±1.5% accuracy provides stable absolute readings without field adjustment, while the integrated temperature compensation eliminates the need for a separate temperature sensor to correct pressure output. The ratiometric 0.2 V to 4.8 V output pairs naturally with low-power 12-bit ADCs and solar-powered microcontrollers. Designers should shield the axial port with a Gore-Tex vent to keep liquid water out while allowing pressure equalization.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para MPXHZ6400A6T1 — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | MPXH6400AC6T1 | MPXH6400AC6U | MPXH6400A6U |
|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 8-SSOP axial | 8-SSOP axial | 8-SSOP axial | 8-SSOP axial |
| Pressure Type | Absolute | Absolute | Absolute | Absolute |
| Operating Pressure Range | 20 kPa to 400 kPa | 20 kPa to 400 kPa | 20 kPa to 400 kPa | 20 kPa to 400 kPa |
| Output Voltage Range | 0.2 V to 4.8 V | 0.2 V to 4.8 V | 0.2 V to 4.8 V | 0.2 V to 4.8 V |
| Supply Voltage | 4.64 V to 5.36 V | 4.64 V to 5.36 V | 4.64 V to 5.36 V | 4.64 V to 5.36 V |
| Accuracy | ±1.5% (0°C to 85°C) | ±1.5% (0°C to 85°C) | ±1.5% (0°C to 85°C) | ±2.5% (0°C to 85°C) |
| Media-Resistant Gel Coating | Yes (Z grade) | No | No | No |
| Operating Temperature | -40 °C to +125 °C | -40 °C to +125 °C | -40 °C to +125 °C | -40 °C to +125 °C |
Diferenciadores clave
- Media-resistant gel coating (Z grade) (frente a MPXH6400AC6T1)
- Higher full-scale pressure range (frente a MPXH6300A6U)
- On-chip bipolar op-amp signal conditioning (frente a Bare MEMS die sensors)
Notas de diseño
Decouple the VCC pin (Pin 1) with a 100 nF ceramic capacitor placed within 5 mm of the package, plus a 1 µF bulk capacitor at the PCB entry point. The on-chip bipolar op-amp draws switching transients when sourcing heavy output currents into low-impedance loads; proper decoupling prevents these from coupling into the bridge network and degrading the analog output. Avoid sharing the VCC trace with high-current digital circuitry.
Do not connect anything other than air to the axial port. Liquid ingress through the port will damage the MEMS diaphragm and the on-chip signal conditioning, permanently shifting calibration. For outdoor or medical use, install a hydrophobic membrane (e.g., Gore-Tex vent) upstream of the port. Do not apply pressure exceeding 800 kPa (absolute); the sensor can survive brief transients to 1.6 MPa but sustained overpressure will degrade accuracy and shorten life.
Route the VOUT trace away from noisy digital lines, switching converters, and motor drivers. Place an RC low-pass filter (1 kΩ series + 100 nF to GND) close to the ADC input to attenuate high-frequency noise; the cutoff of approximately 1.6 kHz is adequate for static pressure measurements and removes most EMI. For best ratiometric accuracy, route VCC and VOUT as a differential pair to the ADC so supply droop is rejected equally on both signals.
Because the output is ratiometric to VCC, any supply noise or drift propagates directly into the pressure reading. For the highest accuracy, measure VCC through a precision reference and normalize VOUT in software: Pressure (kPa) = 20 + (VOUT/VCC - 0.04) * (380/0.92). This compensates for supply tolerance and temperature effects on the 5 V rail. The on-chip temperature compensation handles sensor-side thermal errors, but board-level thermal gradients across VCC still require attention.
Self-heating of the on-chip bipolar op-amp is negligible (sub-milliwatt dissipation), but in enclosed housings with poor airflow the local ambient around the package may differ from the system-level ambient used for software compensation. Mount the sensor away from heat sources (power resistors, regulators, MCU) and provide at least 5 mm clearance for airflow. For best accuracy over 0 °C to 85 °C, do not insulate the package; thermal coupling to ambient is intentional.
Información de cumplimiento
RoHS and REACH compliant per NXP product page. Not AEC-Q100 qualified; this part targets industrial and consumer applications, not automotive safety-critical systems. Conflict-minerals declaration compliant per NXP corporate policy.
