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NXP Semiconductors MPXH6250A6U
- Part No.:
- MPXH6250A6U
- Manufacturer:
- NXP Semiconductors
- Category:
- Pressure Sensors, Transducers
- Package:
- 8-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
MPXH6250A6U.pdf
- Description:
- SENSOR 36.26PSIA 4.9V 8SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:978
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Product details
Overview
MPXH6250A6U from Freescale Semiconductor is an absolute pressure sensor with 20–250 kPa range, ratiometric analog output (4.896 V typical at full scale), ±1.5% accuracy over 0 °C to 85 °C, and on-chip temperature compensation from –40 °C to +125 °C. It serves as a signal-conditioned, monolithic silicon transducer for engine manifold pressure sensing in autogas vehicles using LPG/CNG.
For engineers reviewing the MPXH6250A6U datasheet, MPXH6250A6U pinout, MPXH6250A6U application, or MPXH6250A6U equivalent, this page delivers verified electrical specs, validated 8-pin SSOP pin functions, automotive-grade thermal performance data, and real-world LPG/CNG fuel system integration context.
Technical Context
The MPXH6250A6U integrates a piezoresistive silicon diaphragm with thin-film resistor networks and bipolar op-amp circuitry to deliver a high-level analog voltage output directly proportional to absolute pressure. Its transfer function is VOUT = VS × (0.004 × P − 0.040), with VS = 5.1 V ± 0.36 V.
On-chip temperature compensation corrects offset and span drift across –40 °C to +125 °C, while fluorosilicone gel isolates the die from media-enabling reliable operation with dry air or compatible gases like LPG. Response time is 1.0 ms (10%–90%), and warm-up time is ≤20 ms after pressure stabilization.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Pressure Range | 20–250 kPa absolute; matches intake manifold vacuum/boost in small-displacement autogas engines. |
| Output Voltage | 0.204 V (min) to 4.896 V (typ) at full scale; ratiometric to supply, enabling direct ADC interfacing without external scaling. |
| Accuracy | ±1.5% of full-scale span over 0–85 °C; includes linearity, hysteresis, and thermal errors-validated for closed-loop fuel control. |
| Supply Voltage | 4.74–5.46 VDC; supports standard 5 V microcontroller rails with ±7% tolerance. |
| Response Time | 1.0 ms (10%–90%); sufficient for transient manifold pressure tracking in 4-stroke engine cycles. |
| Operating Temp | –40 °C to +125 °C; qualified for under-hood automotive environments with full compensation active. |
Pinout & Package
MPXH6250A6U uses Case 98ARH99066A: an 8-pin super small outline package (SSOP), surface-mount, thermoplastic (PPS) housing with integrated port for absolute pressure reference via sealed vacuum cavity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | DNC | Do not connect; chamfered corner identifies pin 1; internal connection only. |
| Pin 2 | VS | Positive supply input (4.74–5.46 VDC); powers internal op-amps and compensation circuitry. |
| Pin 3 | GND | Analog ground reference; must be low-impedance return path for stable output. |
| Pin 4 | VOUT | Analog output (0.204–4.896 V); directly interfaces to 10-bit+ ADC inputs without amplification. |
| Pins 5–8 | DNC | All unconnected; internal device connections only-no external routing permitted. |
Key Features
| Feature | Design Value |
|---|---|
| On-chip temperature compensation | Eliminates need for external calibration circuitry across –40 °C to +125 °C, reducing BOM and layout complexity. |
| Fluorosilicone gel isolation | Enables long-term reliability with LPG/CNG media while transmitting pressure signal to silicon diaphragm. |
| Ratiometric output | Output scales linearly with supply voltage, allowing shared 5 V rail with MCU and eliminating supply-voltage drift error. |
| Monolithic silicon construction | Integrates sensing element, gain stage, and reference shift into single die-improving repeatability vs. hybrid assemblies. |
Applications
| Fuel-Injected Car Engines | Autogas Vehicles (LPG/CNG) |
|---|---|
Use Scenario: Measuring absolute intake manifold pressure for real-time air mass calculation in gasoline direct injection systems. IC Role / Device Role / Timing Role: Absolute pressure transducer providing analog feedback to ECU for fuel pulse width modulation. Use Value: ±1.5% VFSS accuracy ensures stoichiometric AFR control across ambient and under-hood temperature ranges. | Use Scenario: Monitoring vapor pressure in LPG fuel rail during cold-start and transient acceleration in bi-fuel vehicles. IC Role / Device Role / Timing Role: Signal-conditioned absolute pressure sensor interfaced to vehicle's gas ECU via 10-bit ADC. Use Value: Fluorosilicone gel compatibility prevents degradation in hydrocarbon-rich LPG environments over 10-year service life. |
| Small Engine Control | Industrial Process Monitoring |
Use Scenario: Closed-loop combustion control in portable generators and lawn equipment powered by propane. IC Role / Device Role / Timing Role: Primary pressure feedback element in embedded microcontroller-based governor systems. Use Value: 1.0 ms response time enables dynamic load compensation during rapid throttle transitions. | Use Scenario: Monitoring sealed vessel pressure in pneumatic actuators or compressed-air quality systems. IC Role / Device Role / Timing Role: Absolute reference sensor for safety-critical pressure threshold detection. Use Value: –40 °C to +125 °C operating range supports deployment in unconditioned industrial enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar absolute pressure sensing applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MPXHZ6250A6U | Includes media-resistant fluorosilicone gel pre-applied; identical pinout, pressure range, and electrical specs. | Rated for harsher chemical exposure (e.g., raw biogas, solvent vapors); same LPG/CNG use case but broader media qualification. | Select MPXHZ6250A6U when operating outside dry air or certified LPG media per factory guidance. |
| MPXV7025DP | Differential output (0–5 V), 25 kPa range, SO-8 package; no integrated temperature compensation beyond 0–85 °C. | Designed for low-pressure differential sensing (e.g., HVAC airflow), not absolute manifold pressure. | Not suitable as functional replacement; requires redesign for differential interface and narrower range. |
Compared with MPXH6250A6U, MPXHZ6250A6U offers identical form, fit, and function with enhanced media resistance, while MPXV7025DP serves a fundamentally different measurement topology and pressure class-making it non-interchangeable without system-level changes.
Availability
MPXH6250A6U is available at Aetrix Electronics and suitable for fuel-injected car engines, autogas vehicles (LPG/CNG), and industrial controls requiring stable component supply, long-lifecycle support, and automotive-qualified pressure sensing.
Supply support for MPXH6250A6U 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, sensors, and analog solutions for automotive and industrial markets.
The MPXH6250A6U belongs to Freescale's MAP (Manifold Absolute Pressure) sensor product line, engineered specifically for accurate, temperature-stable absolute pressure measurement in internal combustion engine control systems.
FAQ
What is the pressure range and output type of the MPXH6250A6U?
The MPXH6250A6U is an absolute pressure sensor with a rated range of 20–250 kPa. It provides a ratiometric analog voltage output (0.204 V to 4.896 V typical at full scale) referenced to its supply voltage (VS = 5.1 V). This output is linear and temperature-compensated, making MPXH6250A6U suitable for direct connection to microcontroller ADCs in engine management systems.
Is the MPXH6250A6U compatible with LPG and CNG fuel systems?
Yes-the MPXH6250A6U is explicitly cited in its datasheet for autogas vehicles powered by LPG and CNG. Its fluorosilicone gel isolation protects the silicon die from hydrocarbon exposure, and its absolute pressure reference enables accurate air-fuel ratio calculation in gaseous fuel applications. MPXH6250A6U has been validated for use with dry air and compatible green gases per Freescale's media compatibility guidance.
What is the operating temperature range and compensation coverage of the MPXH6250A6U?
The MPXH6250A6U operates from –40 °C to +125 °C and features on-chip temperature compensation active across that full range. Offset and span drift are corrected from –40 °C to +125 °C, while accuracy specification (±1.5% VFSS) applies over 0 °C to 85 °C-covering typical under-hood conditions during vehicle operation. MPXH6250A6U meets automotive thermal qualification requirements.
How many pins does the MPXH6250A6U use, and which ones are functional?
The MPXH6250A6U uses an 8-pin SSOP package (Case 98ARH99066A). Only three pins are functional: Pin 2 (VS), Pin 3 (GND), and Pin 4 (VOUT). Pins 1 and 5–8 are marked DNC (Do Not Connect) and must remain unconnected-these are internal die connections with no external circuit role. MPXH6250A6U requires no external passive components for basic operation.
What is the accuracy specification of the MPXH6250A6U, and what error sources does it include?
The MPXH6250A6U has a total accuracy of ±1.5% of full-scale span (VFSS) over 0 °C to 85 °C. This figure includes combined effects of linearity error, temperature hysteresis, pressure hysteresis, TcSpan, TcOffset, and variation from nominal values-all measured and guaranteed per Freescale's test methodology. MPXH6250A6U does not require end-of-line calibration to meet this spec.
MPXH6250A6U Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- MPXH6250A
- Package/Case:
- 8-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Applications:
- Board Mount
- Pressure Type:
- Absolute
- Operating Pressure:
- 2.9PSI ~ 36.26PSI (20kPa ~ 250kPa)
- Output Type:
- Analog Voltage
- Output:
- 0.3 V ~ 4.9 V
- Accuracy:
- ±1.5%
- Voltage - Supply:
- 4.74V ~ 5.46V
- Port Size:
- -
- Port Style:
- No Port
- Features:
- Temperature Compensated
- Termination Style:
- Gull Wing
- Maximum Pressure:
- 145.04PSI (1000kPa)
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SSOP
MPXH6250A6U FAQ
1.How can I place an order for MPXH6250A6U through Aetrix?
Please submit a Request for Quotation (RFQ) for MPXH6250A6U 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 MPXH6250A6U reliable?
The price and inventory of MPXH6250A6U are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPXH6250A6U is usually 5 days.
3.What payment methods are accepted for MPXH6250A6U?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPXH6250A6U transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPXH6250A6U?
MPXH6250A6U orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPXH6250A6U 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 MPXH6250A6U?
For technical support, including MPXH6250A6U datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPXH6250A6U requirements.
6.How does Aetrix verify that MPXH6250A6U is sourced from the original manufacturer or authorized distributors?
All MPXH6250A6U 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 MPXH6250A6U meets industry standards.
7.What is the process for return or replacement of MPXH6250A6U?
All MPXH6250A6U units undergo pre-shipment inspection (PSI). If there is an issue with MPXH6250A6U, 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 MPXH6250A6U part is unused and in its original packaging.
Return procedure for MPXH6250A6U:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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