My Inquiry
My Account
NXP Semiconductors MPXA4250A6U
- Part No.:
- MPXA4250A6U
- Manufacturer:
- NXP Semiconductors
- Category:
- Pressure Sensors, Transducers
- Package:
- 8-SMD Module
- Datasheet:
-
MPXA4250A6U.pdf
- Description:
- SENSOR 36.26PSIA 4.9V
- Quantity:
- Payment:
- Shipping:
Inventory:2,405
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MPXA4250A6U from NXP Semiconductors is a manifold absolute pressure (MAP) sensor designed for engine control systems, delivering a ratiometric analog output proportional to absolute air pressure in the 20–250 kPa range. It integrates on-chip signal conditioning, temperature compensation over –40 °C to +125 °C, and factory calibration. Its primary circuit role is providing real-time intake manifold pressure feedback to microcontroller-based fuel injection control.
For engineers reviewing the MPXA4250A6U datasheet, MPXA4250A6U pinout, MPXA4250A6U application, or MPXA4250A6U equivalent, key selection criteria include its ±1.5 % accuracy over 0 °C to 85 °C, 20 mV/kPa sensitivity, 1.0 ms response time, and compatibility with 5.1 V ±0.25 V supply rails in automotive and industrial pressure-sensing designs.
Technical Context
The MPXA4250A6U employs a monolithic silicon piezoresistive sensing element with patented shear-stress strain gauge architecture. Its internal signal chain includes two gain stages, thin-film temperature compensation circuitry, and a ground-reference shift network - all integrated on a single die.
This small-outline package (Case 482A-01) variant uses a surface-mount epoxy unibody construction with 8 pins, of which only pins 2 (VCC), 3 (GND), and 4 (VOUT) are functional; pins 1, 5–8 are no-connect terminals. The device operates ratiometrically and requires the decoupling network shown in Figure 5 (1.0 µF, 0.01 µF, 470 pF) to meet full electrical specifications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Pressure Range | 20–250 kPa absolute; enables precise fuel mapping across idle to full-load engine conditions. |
| Supply Voltage | 4.85–5.35 Vdc; ratiometric operation ensures output stability against rail variation. |
| Full Scale Output | 4.826–4.966 Vdc at 250 kPa; directly interfaces with 5 V A/D converters without level-shifting. |
| Accuracy | ±1.5 %VFSS over 0 °C to 85 °C; covers linearity, TcOffset, TcSpan, and hysteresis error sources. |
| Response Time | 1.0 ms (10–90%); supports real-time transient pressure tracking in turbocharged engines. |
| Sensitivity | 20 mV/kPa; yields ~5 V output swing across full scale, simplifying noise margin design. |
| Operating Temp | –40 °C to +125 °C; qualified for under-hood automotive environments without external thermal management. |
Pinout & Package
MPXA4250A6U uses the small-outline package Case 482A-01 (98ASB17757C), an 8-pin surface-mount epoxy unibody housing measuring 10.54 × 10.54 × 2.54 mm. Pin 1 is marked by a notch; pins 1, 5–8 are no-connect and must remain unconnected.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 2 | VCC | 5.1 V ±0.25 V power input; supplies internal amplifier and compensation circuitry. |
| Pin 3 | GND | Analog ground reference; must be connected to low-noise system ground plane. |
| Pin 4 | VOUT | Ratiometric analog output (0.204–4.896 V); connects directly to MCU ADC input. |
| Pins 1, 5–8 | DNC | No-connect; floating or grounded connection degrades accuracy and may cause instability. |
Key Features
| Feature | Design Value |
|---|---|
| On-chip temperature compensation | Validated over –40 °C to +125 °C; eliminates need for external thermistor or software correction. |
| Patented silicon shear-stress strain gauge | Enables high repeatability and low hysteresis (<0.5 %VFSS offset stability after 1000-hour stress test). |
| Ratiometric output | Output scales linearly with VCC; rejects supply rail noise and simplifies system-level calibration. |
| Integrated signal conditioning | Includes dual gain stages and ground-reference shift; delivers 0.2–4.9 V output without external op-amps. |
| Small-outline surface-mount package | Case 482A-01 footprint self-aligns during reflow; reduces board space vs. legacy hybrid modules by >40 %. |
Applications
| Turbo Boost Engine Control | Microcontroller-Based Fuel Injection |
|---|---|
Use Scenario: Real-time monitoring of intake manifold pressure during rapid throttle transients in turbocharged gasoline engines. IC Role / Device Role / Timing Role: Primary MAP sensor feeding closed-loop air-fuel ratio calculation in ECU firmware. Use Value: 1.0 ms response time and ±1.5 %VFSS accuracy enable precise boost pressure tracking and prevent lean misfire during acceleration. |
Use Scenario: Integration into embedded engine control units using 10-bit or 12-bit ADCs for cylinder-specific fuel pulse width computation. IC Role / Device Role / Timing Role: Analog pressure transducer with ratiometric output synchronized to MCU VCC reference. Use Value: Direct 5 V-compatible output eliminates external scaling circuitry, reducing BOM count and layout complexity. |
| Industrial Vacuum Monitoring | Aftertreatment System Pressure Sensing |
Use Scenario: Continuous suction pressure measurement in HVAC compressors and vacuum pumps operating at ambient temperatures up to 85 °C. IC Role / Device Role / Timing Role: Absolute pressure interface for PID-controlled vacuum regulation loops. Use Value: Factory-calibrated 20–250 kPa range covers typical industrial vacuum levels (−80 to 0 kPa gauge), avoiding range mismatch errors. |
Use Scenario: Differential pressure monitoring across diesel particulate filters (DPF) and selective catalytic reduction (SCR) catalysts. IC Role / Device Role / Timing Role: High-reliability absolute pressure node in exhaust aftertreatment subsystems. Use Value: –40 °C to +125 °C operating range and epoxy unibody construction withstand thermal cycling and exhaust vibration without drift. |
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 package (Case 867B-04), 6-pin, through-hole mounting; no pin 1, 5–8 DNC configuration. | Designed for legacy PCB layouts requiring vertical mounting and higher mechanical robustness in high-vibration environments. | Select MPX4250AP when through-hole assembly or enhanced mechanical anchoring is required; not drop-in compatible with MPXA4250A6U footprint. |
| MPXA4115A6U | Narrower 15–115 kPa range; identical Case 482A-01 package and pinout; same 1.5 %VFSS accuracy spec. | Optimized for naturally aspirated engines and low-pressure intake systems where 250 kPa headroom is unnecessary. | Choose MPXA4115A6U to reduce cost and improve resolution in sub-115 kPa applications; shares layout and firmware but requires pressure range validation. |
Compared with MPX4250AP, MPXA4250A6U offers surface-mount scalability and reduced board area; compared with MPXA4115A6U, it provides extended upper-range capability essential for turbocharged operation - making MPXA4250A6U the optimal choice for broad-coverage engine control platforms.
Availability
MPXA4250A6U is available at Aetrix Electronics and suitable for automotive engine control, industrial vacuum monitoring, and aftertreatment system pressure sensing requiring stable component supply across production lifecycles.
Supply support for MPXA4250A6U 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 core expertise in sensor signal conditioning and embedded processing.
The MPX/MPXA series was developed specifically for engine management systems, integrating monolithic pressure sensing with on-die compensation to replace multi-component hybrid modules in space-constrained ECU designs.
FAQ
What is the operating temperature range of the MPXA4250A6U?
The MPXA4250A6U operates from –40 °C to +125 °C, with full accuracy (±1.5 %VFSS) specified over 0 °C to 85 °C. Its on-chip temperature compensation remains active across the entire range, enabling reliable use in under-hood automotive environments. This specification is validated per NXP's qualification testing and applies directly to the MPXA4250A6U in Case 482A-01 packaging.
Does the MPXA4250A6U require external calibration or trimming?
No, the MPXA4250A6U is fully calibrated at the factory and requires no external trimming or software calibration. Its on-chip signal conditioning, temperature compensation, and span/offset calibration are laser-trimmed during manufacturing. Users only need to apply the recommended decoupling network (1.0 µF, 0.01 µF, 470 pF) as shown in Figure 5 of the MPXA4250A6U datasheet to achieve guaranteed performance.
Can the MPXA4250A6U be used with a 3.3 V microcontroller ADC?
The MPXA4250A6U is designed for 5.1 V ±0.25 V supply and delivers a ratiometric output spanning ~0.2–4.9 V. Using it with a 3.3 V ADC requires either a precision resistive divider or a rail-to-rail op-amp buffer to scale the output. Direct connection risks ADC saturation and loss of lower-range resolution; the MPXA4250A6U itself does not support 3.3 V operation.
What is the meaning of "DNC" pins on the MPXA4250A6U?
"DNC" stands for "Do Not Connect." Pins 1, 5, 6, 7, and 8 on the MPXA4250A6U are internally unconnected and must remain floating - grounding or routing them causes unpredictable output behavior and violates the MPXA4250A6U's electrical specifications. This is explicitly defined in Table 3 of the official datasheet and applies only to the small-outline package variant.
Is the MPXA4250A6U compatible with media other than dry air?
NXP specifies the MPXA4250A6U's performance and reliability based on dry air as the pressure medium. Exposure to oil, fuel vapor, coolant, or corrosive gases may degrade long-term stability or damage the fluorosilicone gel encapsulation. For non-air media, users must consult NXP's factory for compatibility validation - the MPXA4250A6U is not rated for direct contact with liquid or chemically aggressive substances.
MPXA4250A6U Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- MPXA4250A
- Package/Case:
- 8-SMD Module
- Packaging:
- Tube
- 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:
- -
- Port Style:
- No Port
- Features:
- Temperature Compensated
- Termination Style:
- SMD (SMT) Tab
- Maximum Pressure:
- 145.04PSI (1000kPa)
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- -
MPXA4250A6U FAQ
1.How can I place an order for MPXA4250A6U through Aetrix?
Please submit a Request for Quotation (RFQ) for MPXA4250A6U 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 MPXA4250A6U reliable?
The price and inventory of MPXA4250A6U are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPXA4250A6U is usually 5 days.
3.What payment methods are accepted for MPXA4250A6U?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPXA4250A6U transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPXA4250A6U?
MPXA4250A6U orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPXA4250A6U 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 MPXA4250A6U?
For technical support, including MPXA4250A6U datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPXA4250A6U requirements.
6.How does Aetrix verify that MPXA4250A6U is sourced from the original manufacturer or authorized distributors?
All MPXA4250A6U 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 MPXA4250A6U meets industry standards.
7.What is the process for return or replacement of MPXA4250A6U?
All MPXA4250A6U units undergo pre-shipment inspection (PSI). If there is an issue with MPXA4250A6U, 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 MPXA4250A6U part is unused and in its original packaging.
Return procedure for MPXA4250A6U:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MPXA4250A6U Tags
-
DPS368XTSA1
Infineon Technologies
-
DPS310XTSA1
Infineon Technologies
-
LPS22HHTR
STMicroelectronics
-
ICP-20100
TDK InvenSense
-
ICP-10110
TDK InvenSense
-
LPS22DFTR
STMicroelectronics
-
LPS22HBTR
STMicroelectronics
-
BMP390
Bosch Sensortec
-
BMP581
Bosch Sensortec
-
BMP384
Bosch Sensortec
-
2511020213301
Würth Elektronik
-
ILPS22QSTR
STMicroelectronics
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
