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NXP Semiconductors MPX4250GP
- Part No.:
- MPX4250GP
- Manufacturer:
- NXP Semiconductors
- Category:
- Pressure Sensors, Transducers
- Package:
- 6-SIP Module
- Datasheet:
-
MPX4250GP.pdf
- Description:
- SENSOR 36.26PSIG 0.19" 4.9V
- Quantity:
- Payment:
- Shipping:
Inventory:1,583
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Product details
Overview
MPX4250GP from Freescale Semiconductor is a monolithic silicon piezoresistive pressure sensor with on-chip signal conditioning, temperature compensation, and factory calibration for gauge pressure measurement. It delivers a ratiometric 0.2–4.9 V analog output over a 0–250 kPa range, operates from 4.85–5.35 V supply, and achieves ±1.4% full-scale accuracy across 0°C to 85°C - ideal for engine manifold pressure sensing in automotive ECU systems.
For engineers reviewing the MPX4250GP datasheet, MPX4250GP pinout, MPX4250GP application, or MPX4250GP equivalent, key selection considerations include its unibody epoxy package (Case 867B), dual-port gauge configuration, 1.0 ms response time, and compatibility with microcontroller A/D inputs requiring stable, calibrated analog pressure signals.
Technical Context
The MPX4250GP integrates a silicon shear-stress strain gauge with thin-film metallization and bipolar processing to generate a linear, temperature-compensated output voltage proportional to applied gauge pressure (P1 relative to ambient P2). Its internal architecture includes two gain stages, a ground-reference shift circuit, and on-die temperature compensation circuitry validated across –40°C to +125°C operating range.
It functions as a ratiometric transducer: output scales directly with supply voltage (VS = 5.1 V ±0.25 V), enabling direct interface with ADCs without external reference. The device requires no external zero or span adjustment and exhibits ±0.5%VFSS offset stability after 1000-hour pulsed pressure/temperature cycling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Pressure Range | 0 to 250 kPa gauge - supports intake manifold, HVAC, and brake booster pressure monitoring at automotive-grade pressure levels. |
| Output Voltage | 0.204 V (min) to 4.909 V (typ) at 5.1 V supply - provides >4.7 V full-scale span for high-resolution 12-bit+ ADC digitization. |
| Accuracy | ±1.4 %VFSS over 0°C to 85°C - includes linearity, hysteresis, TcOffset, and TcSpan contributions; eliminates need for system-level calibration. |
| Response Time | 1.0 ms (10% to 90%) - enables real-time dynamic pressure capture in transient engine events such as throttle snap. |
| Supply Voltage | 4.85–5.35 V DC - compatible with standard 5 V microcontroller rails and tolerant of regulator ripple or load variation. |
| Operating Temp | –40°C to +125°C - qualified for under-hood automotive placement without external thermal shielding. |
| Sensitivity | 18.8 mV/kPa - yields ~4.7 V span across full range, matching typical 5 V ADC reference for optimal SNR. |
Pinout & Package
MPX4250GP uses the Case 867B unibody epoxy package - a 6-pin, single-ported (gauge) surface-mount package with integrated stainless steel cover and fluorosilicone die coating for environmental protection and media isolation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VOUT | Analog output signal - ratiometric voltage proportional to applied gauge pressure; connects directly to MCU ADC input. |
| 2 | GND | Analog ground reference - must be tied to low-noise system ground plane; decoupling capacitor required per Figure 3. |
| 3 | VCC | Positive supply input - accepts 4.85–5.35 V; requires 1.0 μF + 0.01 μF decoupling per recommended circuit. |
| 4 | V1 | No connect - internally unconnected; left floating or grounded per layout best practice. |
| 5 | V2 | No connect - internally unconnected; not used in gauge configuration. |
| 6 | VEX | No connect - excitation test point; unused in normal operation. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-port gauge configuration | Port #1 (P1) accepts positive pressure; Port #2 (P2) is vented to ambient - enables true gauge measurement without external reference plumbing. |
| On-chip temperature compensation | Validated over –40°C to +125°C - eliminates external thermistor networks and reduces BOM count in automotive modules. |
| Patented silicon shear-stress strain gauge | Delivers superior hysteresis and long-term stability vs. conventional piezoresistive elements - critical for emissions-critical engine control. |
| Epoxy unibody construction | Hermetically sealed with fluorosilicone gel - resists moisture, oil, and vibration; qualified for 10M+ pressure cycles in harsh environments. |
| Ratiometric output | Output scales linearly with supply voltage - removes dependency on precise voltage references and simplifies power domain design. |
Applications
| Engine Intake Manifold Pressure | HVAC Blower Control |
|---|---|
|
Use Scenario: Real-time measurement of absolute pressure in gasoline/diesel engine intake manifolds for fuel injection timing and air mass calculation. IC Role / Device Role / Timing Role: Primary analog pressure transducer feeding ECU ADC; replaces mechanical diaphragm sensors with higher repeatability. Use Value: ±1.4%VFSS accuracy and 1 ms response enable closed-loop air-fuel ratio control within OBD-II compliance limits. |
Use Scenario: Monitoring duct static pressure to regulate blower motor speed in automotive and commercial HVAC systems. IC Role / Device Role / Timing Role: Gauge pressure sensor referenced to ambient cabin air; outputs linear voltage to HVAC controller PWM driver. Use Value: Unibody epoxy package withstands condensation and dust exposure; 0–250 kPa range covers typical HVAC differential pressures. |
| Brake Booster Vacuum Sensing | Industrial Process Monitoring |
|
Use Scenario: Detecting vacuum level in hydraulic brake booster reservoirs to trigger assist warnings or redundancy logic. IC Role / Device Role / Timing Role: Fail-safe gauge sensor with diagnostic-ready output; interfaces to ASIL-B compliant safety monitor circuits. Use Value: –40°C to +125°C operation ensures reliability during cold starts and under-hood thermal soak; ±0.5%VFSS offset stability supports long-term diagnostics. |
Use Scenario: Continuous pressure monitoring in pneumatic control panels, compressor discharge lines, and filter clogging detection. IC Role / Device Role / Timing Role: Standalone analog transducer with minimal external components - reduces footprint vs. hybrid pressure modules. Use Value: 18.8 mV/kPa sensitivity and 4.7 V span maximize ADC resolution; durable epoxy case eliminates need for external housings. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar gauge pressure transducer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MPX5700GP | Wider 0–700 kPa range; higher 5.0 V output span; same Case 867B package and pinout. | Designed for higher-pressure turbocharged engines and industrial compressors; not drop-in for 250 kPa systems. | Select MPX5700GP only if system pressure exceeds 250 kPa; otherwise MPX4250GP offers better resolution and lower noise floor. |
| SPX3220 | 0–200 kPa range; 0.5–4.5 V output; SO-8 package; digital I²C output option available. | Targets space-constrained consumer and medical devices; lacks automotive qualification and extended temp range. | Choose SPX3220 for cost-sensitive, non-automotive designs needing digital interface; MPX4250GP remains preferred for AEC-Q200-compliant automotive use. |
Compared with MPX5700GP and SPX3220, the MPX4250GP uniquely balances 0–250 kPa range fidelity, automotive-grade temperature resilience, and analog simplicity - making it the optimal choice for legacy ECU upgrades and new 5 V microcontroller-based pressure monitoring where resolution and qualification outweigh digital flexibility.
Availability
MPX4250GP is available at Aetrix Electronics and suitable for automotive engine control units, HVAC subsystems, and industrial pneumatic monitoring requiring stable component supply, long-lifecycle support, and AEC-Q200-aligned reliability.
Supply support for MPX4250GP includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Freescale Semiconductor (now part of NXP Semiconductors) is a fabless semiconductor company specializing in embedded processing, analog, and sensor solutions for automotive, industrial, and networking markets.
The MPX4250GP belongs to Freescale's MPX4000 series of integrated silicon pressure sensors, designed specifically for microcontroller-based systems requiring calibrated, temperature-compensated analog pressure signals without external signal conditioning.
FAQ
What is the pressure type supported by the MPX4250GP?
The MPX4250GP is a gauge pressure sensor: it measures pressure at Port #1 (P1) relative to ambient atmospheric pressure at Port #2 (P2), which is vented. This configuration enables direct reading of intake manifold vacuum or HVAC duct pressure without requiring an external reference port or sealed vacuum chamber.
Does the MPX4250GP require external calibration or trimming?
No, the MPX4250GP does not require external calibration or trimming. It is factory-calibrated and temperature-compensated across –40°C to +125°C, delivering a ratiometric 0.2–4.9 V output that meets ±1.4%VFSS accuracy over 0°C to 85°C without user adjustment. The transfer function Vout = VS × (0.00369 × P + 0.04) is pre-programmed into the on-chip signal conditioning circuitry.
What is the maximum pressure the MPX4250GP can withstand without damage?
The MPX4250GP has a maximum pressure rating of 1000 kPa (145 psi) for short-term overload conditions. While its specified operating range is 0–250 kPa, this 4× overpressure capability allows safe handling during assembly, testing, or transient spikes - provided exposure remains brief and within the storage temperature limits of –40°C to +125°C.
Can the MPX4250GP be used with a 3.3 V microcontroller supply?
The MPX4250GP requires a 4.85–5.35 V supply and is not rated for 3.3 V operation. Its internal circuitry, including the piezoresistive bridge bias and amplifier stages, is optimized for 5.1 V ±0.25 V. Using 3.3 V will result in invalid output voltage (below 0.2 V minimum) and failure to meet accuracy or response time specifications. A dedicated 5 V LDO or charge pump is required when interfacing with 3.3 V systems.
Is the MPX4250GP compatible with wet media such as oil or coolant?
The MPX4250GP is qualified for dry air only. Freescale explicitly states that media other than dry air may adversely affect performance and long-term reliability. Its fluorosilicone die coat and epoxy unibody provide environmental sealing but are not rated for direct contact with oils, coolants, or aggressive chemicals. For wet-media applications, consult NXP's SPX or MP3V series sensors with appropriate media compatibility certifications.
MPX4250GP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- MPX4250
- Package/Case:
- 6-SIP Module
- Packaging:
- Tray
- Product Status:
- Obsolete
- Applications:
- Board Mount
- Pressure Type:
- Vented Gauge
- Operating Pressure:
- 36.26PSI (250kPa)
- Output Type:
- Analog Voltage
- Output:
- 0.2 V ~ 4.9 V
- Accuracy:
- ±1.4%
- Voltage - Supply:
- 4.85V ~ 5.35V
- Port Size:
- Male - 0.19" (4.93mm) Tube
- Port Style:
- Barbed
- Features:
- Temperature Compensated
- Termination Style:
- PC Pin
- Maximum Pressure:
- 145.04PSI (1000kPa)
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- -
MPX4250GP FAQ
1.How can I place an order for MPX4250GP through Aetrix?
Please submit a Request for Quotation (RFQ) for MPX4250GP on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MPX4250GP reliable?
The price and inventory of MPX4250GP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPX4250GP is usually 5 days.
3.What payment methods are accepted for MPX4250GP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPX4250GP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPX4250GP?
MPX4250GP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPX4250GP order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MPX4250GP?
For technical support, including MPX4250GP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPX4250GP requirements.
6.How does Aetrix verify that MPX4250GP is sourced from the original manufacturer or authorized distributors?
All MPX4250GP products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MPX4250GP meets industry standards.
7.What is the process for return or replacement of MPX4250GP?
All MPX4250GP units undergo pre-shipment inspection (PSI). If there is an issue with MPX4250GP, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MPX4250GP part is unused and in its original packaging.
Return procedure for MPX4250GP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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