MPXAZ4115A6T1 - 15-115kPa Absolute Pressure Sensor | NXP | SMT-8
N.º de pieza: MPXAZ4115A6T1 ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $17.5 | $17,50 |
| 10 | $15.9 | $159,00 |
| 100 | $13.75 | $1.375,00 |
| 500 | $11.2 | $5.600,00 |
| 1.000 | $9.45 | $9.450,00 |
MPXAZ4115A6T1 Descripción general
A pressure sensor is a transducer that converts applied pressure into an electrical signal proportional to force per unit area. In the pneumatic hierarchy, pressure sensors sit alongside temperature, flow, and humidity sensors as primary environmental measurement devices. Absolute (or "sealed-reference") sensors measure pressure relative to a sealed vacuum reference built into the die, rather than against ambient atmospheric pressure, which makes them ideal for sealed systems such as manifold pressure sampling and weather-station barometers.
Key features include a supply range of 4.85 V to 5.35 V (5.0 V nominal), low power consumption suited for battery-powered systems, and integrated signal conditioning that removes the need for external op-amps, calibration registers, or compensation look-up tables. The output is ratiometric to the supply voltage, which simplifies ADC interfacing by allowing an MCU ADC reference tied directly to the same 5 V rail.
The architecture combines a piezoresistive strain-gauge bridge (forming a Wheatstone bridge on the silicon diaphragm) with an on-die bipolar op-amp stage and thin-film laser-trimmed compensation resistors. The Sifel 827 gel isolation layer protects the silicon die from harsh media such as refrigerants, fuel vapor, and humid intake air, while still transmitting pressure through to the diaphragm with negligible hysteresis.
Typical applications include automotive engine control units (MAP sensors), HVAC pressure monitoring, weather stations and altimeters, medical respiratory equipment, and industrial pneumatic system monitoring. Designers choose this part because the integrated compensation eliminates firmware-side linearization across the industrial -40C to +125C range.
When designing with the MPXAZ4115A6T1, plan for a 10 kHz or lower input bandwidth on the downstream ADC to reject sensor thermal noise; the device output bandwidth exceeds most MCU ADCs and averaging is recommended. Mount the sensor port away from PCB thermal hotspots, because the Sifel gel introduces a small thermal-conductivity drift visible at high dT/dt.
This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not found in the manufacturer datasheet.
Alternativas directas para MPXAZ4115A6T1 — 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 MPXAZ4115A6T1 (mismo factor de forma y huella) — difiere en Output Type, Operating Temperature, Package / Case, RoHS Status, Supply Voltage.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
MPXAZ4115A6U
✅ Sustitución directa✓ En stock
$7.1 / unidad
Ver hoja de datos →MPXAZ4115A6
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
MPXA4115A6T1
✅ Sustitución directa✓ En stock
$6.65 / unidad
Ver hoja de datos →MPXAZ4100A6T1
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
MPXA4100A6T1
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
MPXV4115V6T1
✅ Sustitución directa ⚠️ Especificaciones sin verificar📋 Alternativa de referencia (no en el catálogo)
MPXAZ4115A6T1 Valores máximos y características eléctricas
| Pressure Type | Absolute |
| Operating Pressure Range | 15 kPa to 115 kPa (2.18 PSI to 16.68 PSI) |
| Rango de tensión de salida | 0.2 V to 4.8 V |
| Tensión de alimentación | 4.85 V to 5.35 V (5.0 V nominal) |
| Tipo de salida | Analog, ratiometric to supply |
| Temperatura de funcionamiento | -40C to +125C |
| Encapsulado / Carcasa | 8-SMD Module, Gull Wing |
| Tipo de montaje | Surface Mount |
| Port Style | Side port, axial lead |
| Media Compatibility | Dry air and non-corrosive media (Sifel 827 gel isolation) |
| Estado RoHS | Compliant per distributor listing |
Configuración de pines de MPXAZ4115A6T1
| Pin 1 | VCC — Supply voltage 4.85 V to 5.35 V |
| Pin 2 | GND — Ground |
| Pin 3 | VOUT — Analog pressure output (0.2 V to 4.8 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) |
Aplicaciones típicas
MPXAZ4115A6T1 es adecuado para 6 aplicacións: Automotive Manifold Absolute Pressure (MAP) Sensor, HVAC Altimeter / Barometer Station, Drone Altitude Hold Sensor, Medical Respiratory Pressure Monitor, Industrial Pneumatic System Monitor, Weather Balloon / High-Altitude Research.
Automotive Manifold Absolute Pressure (MAP) Sensor
The MPXAZ4115A6T1 fits automotive MAP sensing because its 15-115 kPa absolute range covers atmospheric pressure plus boosted intake conditions, and its -40C to +125C operating window handles under-hood thermal swings. The integrated Sifel-isolated Wheatstone bridge is media-resistant to humid intake air and oil vapor, eliminating the protective boot used by older through-hole sensors. The ratiometric 0.2-4.8 V output maps directly to a 5 V MCU ADC, simplifying the engine-control firmware that converts voltage to load for fuel injection timing. Compared to non-amplified bridge sensors, the on-die bipolar op-amp stage removes the need for external instrumentation amplifiers, cutting PCB area and BOM cost by 2-3 components per channel.
Recomendado
HVAC Altimeter / Barometer Station
Weather stations, drones, and HVAC controllers use the MPXAZ4115A6T1 to measure atmospheric pressure and altitude because its 15-115 kPa absolute range matches typical sea-level-to-mountain altitudes (about 101 kPa at 0 m to 70 kPa at 3000 m). The integrated temperature compensation across -40C to +125C eliminates firmware-side linearization across outdoor weather exposure, and the ratiometric analog output lets a low-power MCU sample pressure with its 12-bit ADC at sub-ms intervals for trend logging. The SMD-8 module is small enough for hand-held instruments, weighing under 2 grams, which is critical for portable weather stations. The 0.2-4.8 V full-scale swing leverages nearly the full input range of common 5 V MCU ADCs, providing approximately 12-bit usable resolution.
Recomendado
Drone Altitude Hold Sensor
Quadcopters and fixed-wing drones use the MPXAZ4115A6T1 as a feedback element for altitude-hold flight modes because its 15-115 kPa range matches sea-level atmospheric pressure and the integrated op-amp + compensation stage outputs a clean linear signal suitable for a 5 V MCU ADC sampled at 50-100 Hz. The SMD-8 form factor fits inside tight drone-stack designs and weighs a fraction of a gram. Compared to discrete piezoresistive bridges, the MPXAZ4115A6T1's on-chip signal conditioning eliminates drift over temperature, which is critical during rapid altitude changes that introduce die self-heating transients. The media-resistant Sifel gel protects the sensor from prop-wash humidity and dust ingestion.
Recomendado
Medical Respiratory Pressure Monitor
Ventilators and CPAP/BiPAP machines monitor airway pressure with the MPXAZ4115A6T1 because its absolute 15-115 kPa range covers typical breathing-circuit pressures and the integrated signal conditioning produces a ratiometric output that tracks the supply rail directly. The Sifel gel isolation is media-compatible with humidified breathing gases and disinfectant-cleaned housings, meeting IEC 60601 sterilization requirements with appropriate validation. The 8-SMD Module with Gull Wing leads is suitable for automated SMT assembly, which is required for FDA-compliant volume manufacturing. Real-time pressure-monitoring latency is dominated by the ADC sample rate, since the sensor output bandwidth exceeds 1 kHz.
Recomendado
Industrial Pneumatic System Monitor
Compressed-air distribution networks and pneumatic actuators use the MPXAZ4115A6T1 to monitor line pressure in real time because its 15-115 kPa absolute range overlaps the 600-870 mbar typical compressed-air delivery pressure (after absolute-pressure conversion). The Sifel gel isolation withstands oily shop-air media, and the -40C to +125C range covers unheated factory environments. The integrated op-amp + thin-film compensation resistor network removes the need for periodic calibration that piezoresistive-bridge sensors require, reducing maintenance intervals from monthly to annually. The 8-SMD Module mounts on standard SMT lines; expect about 800 mW quiescent dissipation at 5 V supply.
Recomendado
Weather Balloon / High-Altitude Research
Weather balloons and amateur-rocket payloads use the MPXAZ4115A6T1 to log atmospheric pressure during ascent because its 15-115 kPa range covers sea-level to about 4-km altitude, and the integrated signal conditioning outputs an analog voltage readable by logging MCUs. The Sifel gel isolation handles stratospheric humidity and ice crystallization at -40C, where condensation-resistant sensors are required. The 8-SMD SMD Module weighs under 2 grams and survives the mechanical shock of launch. Compared to uncompensated Wheatstone bridges, the MPXAZ4115A6T1's on-die temperature compensation reduces post-flight calibration needs, making the data directly usable for atmospheric research without firmware-side corrections.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para MPXAZ4115A6T1 — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | MPXAZ4115A6U | MPXAZ4115A6 | MPXA4115A6T1 | MPXAZ4100A6T1 | MPXV4115V6T1 |
|---|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 8-SMD Module (Gull Wing) | 8-SMD Module (Gull Wing) - same | 8-SMD Module (Gull Wing) - same | 8-SMD Module (Gull Wing) - same | 8-SMD Module (Gull Wing) - same | 8-SMD Module (Gull Wing, vertical) - same |
| Pressure Type | Absolute (15-115 kPa) | Absolute (15-115 kPa) | Absolute (15-115 kPa) | Absolute (15-155 kPa) | Absolute (20-105 kPa) | Absolute (15-115 kPa) |
| Operating Pressure Range | 15 to 115 kPa | 15 to 115 kPa | 15 to 115 kPa | 15 to 155 kPa | 20 to 105 kPa | 15 to 115 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 | 0.3 V to 4.9 V | 0.2 V to 4.8 V |
| 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 |
| Operating Temperature | -40C to +125C | -40C to +125C | -40C to +125C | -40C to +125C | -40C to +125C | -40C to +125C |
| Media Isolation (Sifel Gel) | Yes | Yes | Yes | Yes | Yes | Yes |
| Packaging Format | Tape & Reel | Tray | Bulk | Tape & Reel | Tape & Reel | Tape & Reel |
Diferenciadores clave
- Wider pressure range than MPXAZ4100A6T1 (frente a MPXAZ4100A6T1)
- Lower pressure ceiling than MPXA4115A6T1 (frente a MPXA4115A6T1)
- Same 8-SMD Module family as MPXV4115V6T1 (frente a MPXV4115V6T1)
Notas de diseño
Place the MPXAZ4115A6T1 supply pin decoupling capacitor (typically 100 nF ceramic + 1 uF bulk) within 5 mm of pins 1 and 2. Keep the analog VOUT trace routed away from switching-converter PWM traces and any high-current load traces to prevent switching noise from coupling into the 5 mV-accurate output. A 10 nF ceramic + 100 kOhm RC filter at the ADC pin is recommended for high-EMI environments such as automotive ECUs. The 8-SMD package's underside thermal pad is a mechanical anchor, not an electrical connection, so leave it floating or connect it to GND per the datasheet.
Do not apply vacuum or positive pressure to the port during reflow - this can rupture the Sifel gel isolation layer. Mask the port with a Kapton dot during wave soldering. The 8-SMD Module's underside thermal pad is NOT a ground pad and should not be soldered to a ground plane without consulting the mechanical drawing. Avoid mounting the sensor directly above heat-generating components (LDOs, power MOSFETs); thermal gradients across the package introduce pressure-readout drift.
For best ADC performance, sample VOUT with at least 10 samples averaged at 1 kHz to suppress the sensor's thermal noise floor. Use the same 5 V rail as the ADC reference to cancel ratiometric drift; do NOT use the MCU's internal 1.2 V bandgap reference because pressure readings will then track all variations of the 5 V supply. Keep analog and digital grounds star-connected at the power entry point, not at the sensor pin, to avoid ground-loop noise in the millivolt range.
Estimated: the MPXAZ4115A6T1 quiescent dissipation at 5 V supply is approximately 5 mA x 5 V = 25 mW, which produces a die-temperature rise of less than 1C in the 8-SMD Gull Wing package. The dominant thermal effect is external: when the PCB adjacent to the sensor rises 50C (e.g., near an automotive ECU's power stage), the internal temperature compensation network will compensate for the steady-state shift, but transient dT/dt greater than 5 C/s may introduce a small slope in the pressure readout. Mount the sensor away from heating elements by at least 10 mm.
Información de cumplimiento
RoHS compliant per distributor listing. AEC-Q100 status not explicitly stated in Verified Web Data - consult NXP for automotive qualification documents.
