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NXP Semiconductors MPXA4250AC6T1
- Part No.:
- MPXA4250AC6T1
- Manufacturer:
- NXP Semiconductors
- Category:
- Pressure Sensors, Transducers
- Package:
- 8-SMD, Gull Wing, Top Port
- Datasheet:
-
MPXA4250AC6T1.pdf
- Description:
- SENSOR 36.26PSIA 0.13" 4.9V
- Quantity:
- Payment:
- Shipping:
Inventory:3,588
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Product details
Overview
MPXA4250AC6T1 from NXP Semiconductors is a manifold absolute pressure (MAP) sensor with on-chip signal conditioning, temperature compensation, and factory calibration. It measures absolute air pressure in the 20–250 kPa range, delivers a ratiometric analog output (VOUT = VCC × (P × 0.004 – 0.04)), operates from –40 °C to +125 °C, and is designed for engine control systems requiring precise fuel metering based on intake manifold pressure.
For engineers reviewing the MPXA4250AC6T1 datasheet, MPXA4250AC6T1 pinout, MPXA4250AC6T1 application, or MPXA4250AC6T1 equivalent, this page provides verified technical context, package-specific pin definitions, real-world use scenarios, and validated alternative options for automotive and embedded pressure-sensing designs.
Technical Context
The MPXA4250AC6T1 integrates a monolithic silicon piezoresistive sensing element with thin-film metallization and bipolar signal conditioning circuitry. Its architecture includes two gain stages, on-chip temperature compensation over –40 °C to +125 °C, and a ground-reference shift circuit - all implemented in a single die within a thermoplastic small outline package.
This device outputs a high-level analog voltage proportional to applied pressure, with ratiometric behavior relative to VCC (4.85–5.35 V), full-scale span of 4.692 V, ±1.5 % accuracy over 0 °C to 85 °C, and 1.0 ms response time. It requires no external amplification or linearization for direct A/D interfacing in microcontroller-based systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Pressure Range | 20–250 kPa absolute - covers full manifold vacuum to boosted intake conditions in gasoline and diesel engines. |
| Supply Voltage | 4.85–5.35 Vdc - ratiometric operation ensures output stability across typical automotive 5 V rail tolerances. |
| Full-Scale Span | 4.692 V - enables high-resolution digitization with standard 10- or 12-bit ADCs without external scaling. |
| Accuracy | ±1.5 % VFSS over 0–85 °C - includes linearity, temperature hysteresis, pressure hysteresis, TcSpan, and TcOffset contributions. |
| Response Time | 1.0 ms (10–90 %) - supports real-time transient pressure tracking during rapid throttle changes. |
| Operating Temp | –40 to +125 °C - qualified for under-hood automotive environments without external thermal management. |
| Supply Current | 7.0 mA typ - low quiescent draw suitable for always-on engine control modules. |
Pinout & Package
MPXA4250AC6T1 uses the Case 482A-01 small outline package (98ASB17757C), an 8-pin surface-mount thermoplastic housing with gull-wing leads. Pin 1 is marked by a notch; pins 1, 5, 6, 7, and 8 are no-connect terminals per datasheet Figure 3 and Table 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | DNC | Not internally bonded - must remain unconnected to avoid noise coupling or latch-up risk. |
| 2 | VCC | Main supply input - requires 1.0 µF + 0.01 µF decoupling per Figure 5 for stable operation. |
| 3 | GND | Analog ground reference - must be tied to clean system ground, separate from digital return if possible. |
| 4 | VOUT | Ratiometric analog output - directly interfaces to MCU ADC with minimal filtering (470 pF recommended). |
| 5 | DNC | No internal connection - floating; PCB trace must be omitted or terminated in non-conductive layer. |
| 6 | DNC | No internal connection - same as Pin 5; no pull-up/down or routing permitted. |
| 7 | DNC | No internal connection - unused terminal; avoid proximity to sensitive analog traces. |
| 8 | DNC | No internal connection - electrically isolated; no solder mask or copper required at pad. |
Key Features
| Feature | Design Value |
|---|---|
| On-chip temperature compensation | Validated over –40 °C to +125 °C - eliminates need for external thermistor networks or software correction tables. |
| Patented silicon shear-stress strain gauge | Monolithic construction - improves long-term stability and reduces sensitivity to mechanical stress vs. bonded gauges. |
| Factory-calibrated transfer function | VOUT = VCC × (P × 0.004 – 0.04) - enables plug-and-play integration with no user calibration required. |
| Small-outline surface-mount package | Case 482A-01 (98ASB17757C) - compatible with standard SMT reflow processes and automated optical inspection. |
| High reliability epoxy-unibody alternative | Same die used in MPX4250A series - allows design reuse across SOP and unibody variants without firmware change. |
Applications
| Engine Control Unit (ECU) | Turbocharger Boost Monitoring |
|---|---|
|
Use Scenario: Real-time measurement of intake manifold absolute pressure during closed-loop fuel injection timing in gasoline direct-injection engines. IC Role / Device Role / Timing Role: Primary MAP sensor providing pressure feedback to ECU for air-mass calculation and stoichiometric fuel trim. Use Value: ±1.5 % VFSS accuracy over 0–85 °C ensures consistent lambda control across ambient and under-hood thermal transients. |
Use Scenario: Continuous monitoring of boost pressure upstream of the intercooler in turbocharged diesel powertrains. IC Role / Device Role / Timing Role: Absolute pressure transducer feeding closed-loop wastegate actuation logic to prevent over-boost and engine knock. Use Value: 1.0 ms response time enables dynamic pressure tracking during rapid throttle tip-in and gear shifts. |
| Aftertreatment System Control | Industrial Air Compressor Management |
|
Use Scenario: Pressure sensing in exhaust gas recirculation (EGR) differential manifolds to verify flow rate and valve position integrity. IC Role / Device Role / Timing Role: Secondary MAP reference supporting diagnostic routines for EGR system health monitoring. Use Value: –40 to +125 °C operating range allows mounting near hot exhaust components without derating or heatsinking. |
Use Scenario: Intake pressure monitoring in variable-speed industrial air compressors to optimize motor torque and energy efficiency. IC Role / Device Role / Timing Role: Analog pressure interface for PLC-based compressor controllers requiring calibrated 0–5 V signals. Use Value: Ratiometric output eliminates supply-voltage drift errors, improving long-term repeatability in fixed-installation environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar manifold absolute pressure sensing applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MPX4250AP | Unibody epoxy package (Case 867B-04); identical electrical specs but different mechanical form factor and mounting method. | Designed for through-hole or press-fit mounting in legacy engine harnesses; lacks SMT compatibility. | Select MPX4250AP only when mechanical integration requires unibody construction or higher vibration resistance. |
| MPXA4115AC6T1 | Lower pressure range (15–115 kPa); same SOP package, pinout, and transfer function scaling (0.004 V/kPa). | Optimized for naturally aspirated engines or low-boost applications; saturates above 115 kPa. | Choose MPXA4115AC6T1 when system max pressure remains below 115 kPa to improve resolution and reduce noise floor. |
Compared with MPX4250AP and MPXA4115AC6T1, the MPXA4250AC6T1 uniquely balances wide-range 20–250 kPa coverage, SMT manufacturability, and automotive-grade thermal robustness - making it the optimal choice for new turbocharged platform designs requiring production scalability and AEC-Q200 alignment.
Availability
MPXA4250AC6T1 is available at Aetrix Electronics and suitable for engine control units, turbocharger boost monitoring, aftertreatment diagnostics, and industrial air compressor management requiring stable component supply across automotive Tier-1 and industrial OEM programs.
Supply support for MPXA4250AC6T1 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
NXP Semiconductors is a global semiconductor company specializing in secure connectivity solutions for automotive, industrial, and IoT applications, with leadership in sensor signal conditioning and embedded processing.
The MPXA4250AC6T1 belongs to NXP's integrated silicon pressure sensor family, engineered specifically for high-reliability engine management and industrial pressure feedback where on-chip calibration, temperature compensation, and SMT compatibility are critical.
FAQ
What is the pressure range and output behavior of the MPXA4250AC6T1?
The MPXA4250AC6T1 measures absolute pressure from 20 kPa to 250 kPa and provides a ratiometric analog output defined by VOUT = VCC × (P × 0.004 – 0.04). At 20 kPa, typical output is ~0.204 V; at 250 kPa, it reaches ~4.896 V with VCC = 5.1 V. This linear transfer function eliminates need for external linearization in MCU-based systems.
Does the MPXA4250AC6T1 require external calibration or compensation circuits?
No. The MPXA4250AC6T1 includes factory-trimmed on-chip temperature compensation and signal conditioning. Its ±1.5 % VFSS accuracy over 0–85 °C and operation from –40 °C to +125 °C are achieved without external thermistors, op-amps, or software correction - reducing BOM cost and firmware complexity.
Which package type and pin configuration does the MPXA4250AC6T1 use?
The MPXA4250AC6T1 uses the Case 482A-01 small outline package (98ASB17757C), an 8-pin SMT thermoplastic housing. Only Pins 2 (VCC), 3 (GND), and 4 (VOUT) are functional; Pins 1, 5, 6, 7, and 8 are no-connect and must remain unattached in layout and assembly.
Can the MPXA4250AC6T1 be used in non-automotive applications?
Yes. While optimized for engine control, the MPXA4250AC6T1 is explicitly cited in its datasheet as ideal for non-automotive applications including industrial air compressors, HVAC static pressure monitoring, and medical pneumatic systems - provided media compatibility (dry air) and environmental limits are observed.
What decoupling and filtering components are recommended for the MPXA4250AC6T1?
NXP specifies a 1.0 µF bulk capacitor, 0.01 µF ceramic capacitor, and 470 pF output filter capacitor (Figure 5) for stable operation. These components suppress supply noise and limit bandwidth to match the 1.0 ms response time, preventing aliasing and ensuring compliance with electrical specifications across temperature and load conditions.
MPXA4250AC6T1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- MPXA4250A
- Package/Case:
- 8-SMD, Gull Wing, Top Port
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Applications:
- Board Mount
- Pressure Type:
- Absolute
- Operating Pressure:
- 2.9PSI ~ 36.26PSI (20kPa ~ 250kPa)
- Output Type:
- Analog Voltage
- Output:
- 0.2 V ~ 4.9 V
- Accuracy:
- ±1.5%
- Voltage - Supply:
- 4.85V ~ 5.35V
- Port Size:
- Male - 0.13" (3.17mm) Tube
- Port Style:
- Barbless
- 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:
- -
MPXA4250AC6T1 FAQ
1.How can I place an order for MPXA4250AC6T1 through Aetrix?
Please submit a Request for Quotation (RFQ) for MPXA4250AC6T1 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 MPXA4250AC6T1 reliable?
The price and inventory of MPXA4250AC6T1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPXA4250AC6T1 is usually 5 days.
3.What payment methods are accepted for MPXA4250AC6T1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPXA4250AC6T1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPXA4250AC6T1?
MPXA4250AC6T1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPXA4250AC6T1 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 MPXA4250AC6T1?
For technical support, including MPXA4250AC6T1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPXA4250AC6T1 requirements.
6.How does Aetrix verify that MPXA4250AC6T1 is sourced from the original manufacturer or authorized distributors?
All MPXA4250AC6T1 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 MPXA4250AC6T1 meets industry standards.
7.What is the process for return or replacement of MPXA4250AC6T1?
All MPXA4250AC6T1 units undergo pre-shipment inspection (PSI). If there is an issue with MPXA4250AC6T1, 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 MPXA4250AC6T1 part is unused and in its original packaging.
Return procedure for MPXA4250AC6T1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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