MPX4250DP - 0-250 kPa Differential Pressure Sensor | NXP
Référence : MPX4250DP ✗ Fin de vie| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $18.5 | $18,50 |
| 10 | $16.75 | $167,50 |
| 100 | $14.2 | $1 420,00 |
| 500 | $11.95 | $5 975,00 |
| 1 000 | $10.4 | $10 400,00 |
MPX4250DP Présentation
A piezoresistive pressure sensor is a transducer that converts an applied mechanical pressure into an electrical signal by exploiting the change in resistance of silicon strain gauges implanted in a diaphragm. Within the broader sensor taxonomy, the MPX4250DP belongs to the analog output pressure sensor family, which sits under MEMS sensors and alongside digital I2C/SPI pressure sensors, force sensors, and strain gauges. The on-chip signal conditioning, calibration, and temperature compensation distinguish this part from raw sensor elements that require external instrumentation amplifiers and reference design correction.
Key features include ±1.5% maximum pressure error over 0-85°C, an output voltage swing from 0.2 V to 4.91 V for maximum A/D resolution on a 5 V rail, on-chip temperature compensation from -40°C to +125°C, and EMI hardening. The dual-port (DP) differential configuration allows measurement across two pressure sources rather than against sealed reference. The 6-SIP through-hole package is compatible with automotive wiring harnesses and industrial manifolds.
The MPX4250DP combines micromachined silicon diaphragm technology with thin-film metallization and bipolar signal conditioning on a single monolithic die. This integration yields a calibrated transfer function (typically VOUT = VS × (0.004 × P - 0.04), where P is pressure in kPa) and eliminates the need for external temperature lookup tables, making it well suited for cost-sensitive engine control units.
Typical applications include automotive engine manifold absolute pressure (MAP) sensing, barometric correction for fuel injection, industrial pneumatic pressure monitoring, HVAC duct pressure measurement, and consumer appliance pressure feedback. The wide temperature range and ratiometric output make it a fit for under-hood automotive ECU environments.
When designing with this device, route supply and ground with low-impedance traces and decouple VCC with a 100 nF ceramic capacitor placed within 5 mm of the supply pin to limit switching noise on the ratiometric output. Limit exposure to humidity and condensing media by mounting the ports vertically downward or by adding a hydrophobic vent membrane.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone, including a cross-vendor pin-compatible listing for engineers who must qualify a second source in light of the reported MPX4250 family end-of-life status.
Alternatives de remplacement direct pour MPX4250DP — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec MPX4250DP (même facteur de forme et même empreinte) — différant par Mounting Type, Operating Temperature, Output Type, Output Voltage Range, On-Chip Signal Conditioning.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
MPX4250GP
✅ Remplacement direct ⚠️ Spécifications non vérifiées✓ En stock
$9.85 / unité
Voir la fiche technique →MPX4250AP
✅ Remplacement direct ⚠️ Spécifications non vérifiées✓ En stock
$8.1 / unité
Voir la fiche technique →MPX4250D
✅ Remplacement direct✓ En stock
$11.5 / unité
Voir la fiche technique →XGZP6895A
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
MPX4250DP Valeurs maximales et caractéristiques électriques
| Operating Pressure Range | 0 kPa to 250 kPa (0 to 36.3 psi) |
| Pressure Type | Differential (dual port) |
| Type de sortie | Analog, ratiometric |
| Plage de tension de sortie | 0.2 V to 4.91 V (typical at VS = 5.0 V) |
| Supply Voltage (VS) | 4.85 V to 5.35 V (typical 5.0 V) |
| Accuracy | ±1.5% (0°C to 85°C) |
| Température de fonctionnement | -40°C to +125°C |
| Port Configuration | Dual male tube ports, 4.93 mm (0.19 in) diameter |
| Boîtier | 6-SIP Module (through-hole) |
| Type de montage | Through-hole, vertical mount |
| Pressure Error Band | ±1.5% full-scale span over 0°C to 85°C |
| Temperature Compensation | On-chip, -40°C to +125°C |
| Ratiometricity | Output tracks VS for noise-immune conversion |
| Statut RoHS | Compliant |
| Lead-Free | Yes |
Configuration des broches de MPX4250DP
| Broche 1 | VCC — 5 V supply input (4.85 V to 5.35 V) |
| Broche 2 | GND — Supply ground return |
| Broche 3 | VOUT — Analog ratiometric pressure output (0.2 V to 4.91 V) |
| Broche 4 | NC — Not connected (no internal bond) |
| Broche 5 | P1 — High-pressure tube port (4.93 mm tube nipple) |
| Broche 6 | P2 — Low-pressure tube port (4.93 mm tube nipple) |
Applications typiques
MPX4250DP convient pour 6 applications: Engine Manifold Absolute Pressure (MAP) Sensing, Filter Loading / Differential Pressure Monitoring, HVAC Duct Static Pressure Measurement, Pneumatic System Pressure Monitoring, Barometric Pressure Compensation, Consumer Appliance Pressure Feedback.
Engine Manifold Absolute Pressure (MAP) Sensing
The MPX4250DP's 0-250 kPa range and on-chip temperature compensation make it ideal for automotive manifold absolute pressure (MAP) sensing where the ECU must convert intake manifold pressure into fuel injection timing and ignition advance. Placed in the intake tract upstream of the throttle body, the ratiometric 0.2-4.91 V output drives the ECU A/D converter directly without instrumentation amplifiers. Unlike a digital I2C pressure sensor it adds no protocol overhead, allowing 1 ms sampling at low MCU load. The 6-SIP tube-port package mounts through the firewall with O-ring sealing, simplifying under-hood assembly.
Recommandé
Filter Loading / Differential Pressure Monitoring
The MPX4250DP's dual-port (DP) configuration is purpose-built for filter loading detection in industrial compressed-air systems, hydraulic circuits, and HVAC return-air lines. Mounted across the inlet and outlet of the filter element, it produces a 0.2-4.91 V differential signal proportional to filter restriction, enabling predictive maintenance before the element reaches bypass threshold. The on-chip calibration eliminates the need for external temperature compensation tables, reducing firmware footprint. With -40 to +125°C operating range it survives both outdoor enclosures and engine-room installations.
Recommandé
HVAC Duct Static Pressure Measurement
Building automation systems use the MPX4250DP to measure duct static pressure for variable-air-volume (VAV) box control, fan tracking, and filter status indication. Its 250 kPa full scale comfortably covers typical duct pressure spans of 0-2.5 kPa with substantial headroom. The through-hole 6-SIP package allows the sensor to be wired with conventional HVAC control cable, and the 5 V ratiometric output integrates with standard 0-5 V or 0-10 V building controllers via resistor scaling. EMI hardening makes it robust against variable-frequency-drive noise in mechanical rooms.
Recommandé
Pneumatic System Pressure Monitoring
Factory pneumatic systems operating at 0-150 psi (0-1034 kPa) rely on the MPX4250DP for line-pressure monitoring and leak detection when paired with a precision resistor-divider interface or downstream gain stage. The dual-port design allows direct differential measurement between supply and downstream load, eliminating bypass plumbing. On-chip temperature compensation from -40°C to +125°C supports outdoor enclosures and refrigerated compressed-air dryers. The 5 V ratiometric output simplifies interface to PLC analog input modules that accept 0-5 V or 4-20 mA via a 250 Ω shunt.
Recommandé
Barometric Pressure Compensation
The MPX4250DP serves as a low-cost barometric correction element in fuel-injection ECUs, altimeters, and weather stations, where manifold pressure must be compensated for ambient atmospheric pressure. Its 0-250 kPa range covers full sea-level to ~12 km altitude operation (101 kPa down to ~19 kPa). On-chip calibration and temperature compensation remove the need for system-level lookup tables, simplifying firmware development. Ratiometric output tracks the 5 V A/D reference, eliminating gain-error contributions from supply drift during engine cranking.
Recommandé
Consumer Appliance Pressure Feedback
Washing machines, dishwashers, and espresso machines employ the MPX4250DP for water-level and steam-pressure feedback, where cost and reliability dominate the BOM trade-off. The integrated signal conditioning eliminates external op-amps and resistors, allowing designers to attach the device directly to an 8-bit MCU A/D input. The 6-SIP through-hole package offers mechanical robustness against vibration found in laundry appliances. EMI hardening and -40°C to +125°C operation suit under-counter installations with elevated ambient temperatures.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour MPX4250DP — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | MPX4250GP | MPX4250AP | MPX4250D | XGZP6895A |
|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | CFSensor |
| Package | 6-SIP Module | 6-SIP Module | 6-SIP Module | 6-SIP Module | 6-SIP Module |
| Pressure Range | 0-250 kPa (0-36.3 psi) | 0-250 kPa | 0-250 kPa | 0-250 kPa | 0-250 kPa |
| Pressure Type | Differential (dual port) | Gage (single port + vent) | Absolute (vacuum reference) | Configurable (single port) | Differential/Gage/Absolute options |
| Output Type | Analog 0.2-4.91 V ratiometric | Analog 0.2-4.91 V ratiometric | Analog 0.2-4.91 V ratiometric | Analog 0.2-4.91 V ratiometric | Analog 0.5-4.5 V ratiometric |
| Supply Voltage | 4.85 V - 5.35 V | 4.85 V - 5.35 V | 4.85 V - 5.35 V | 4.85 V - 5.35 V | 5.0 V typical |
| Accuracy | ±1.5% (0-85°C) | ±1.5% | ±1.5% | ±1.5% | ±1.0% to ±1.5% |
| 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 |
Principaux différenciateurs
- Dual-port (DP) differential measurement within the MPX4250 family (vs MPX4250D)
- On-chip temperature-compensated calibration (vs XGZP6895A)
- Automotive-grade EMI hardening and 5 V ratiometric output (vs Generic SIP pressure sensors)
Notes de conception
Decouple the VCC pin with a 100 nF ceramic capacitor placed within 5 mm of the sensor; add a 10 µF bulk tantalum or aluminum polymer capacitor if the supply trace exceeds 50 mm. Because the output is ratiometric to VS, noise or ripple on VS converts directly to output error: 10 mV of supply ripple at maximum sensitivity is ~2.5 kPa of measurement error.
Route VCC, GND, and VOUT over a continuous ground plane to limit common-mode noise injection into the high-impedance output buffer. Keep digital switching traces (PWM, MCU clock) at least 10 mm away from the analog output node. The two tube ports should connect via short 4.93 mm tubing with minimal dead volume to preserve frequency response.
Do not pressurize port 1 higher than the published proof pressure; permanent die damage occurs if the diaphragm is over-ranged. Avoid condensing humidity by mounting the package vertically with ports pointing downward or by adding a Gore-Tex vent membrane. The NC pin (pin 4) is not bonded internally - do not assign a function to it.
Use the same 5 V rail as the A/D reference to leverage ratiometric operation and cancel supply drift. Place a unity-gain op-amp buffer within 25 mm of the VOUT pin if cable length to the MCU exceeds 100 mm, because the sensor output impedance is non-trivial and capacitive loading degrades accuracy. For differential-to-single-ended conversion, use an instrumentation amp such as INA128 with 10 kHz low-pass filtering.
Informations de conformité
RoHS and lead-free compliance per NXP product page; AEC-Q100 not applicable for non-automotive-qualified pressure sensor. Verify halogen-free status with the manufacturer for specific date codes.