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NXP Semiconductors MPX12D
- Part No.:
- MPX12D
- Manufacturer:
- NXP Semiconductors
- Category:
- Pressure Sensors, Transducers
- Package:
- 4-SIP Module
- Datasheet:
-
MPX12D.pdf
- Description:
- SENSOR 1.45PSID .055V
- Quantity:
- Payment:
- Shipping:
Inventory:4,060
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Product details
Overview
MPX12D from NXP Semiconductors is a silicon piezoresistive gauge pressure sensor delivering ratiometric, linear voltage output proportional to applied differential pressure (P1 > P2) across a 0–10 kPa range. It features 5.5 mV/kPa sensitivity, ±0.1%VFSS pressure hysteresis, and operates from 3.0–6.0 Vdc supply with 6.0 mA typical current draw. Designed for pneumatic control and medical diagnostics where external temperature compensation is implemented.
For engineers reviewing the MPX12D datasheet, MPX12D pinout, MPX12D application, or MPX12D equivalent, this page provides verified technical context, pin-level circuit roles, real-world use value in leak detection and environmental control, and two validated alternative sensors with documented functional trade-offs.
Technical Context
The MPX12D implements a single-element silicon shear-stress strain gauge integrated directly into the diaphragm, eliminating thermal expansion mismatch errors common in bonded-gauge sensors. Its ratiometric output scales linearly with supply voltage, enabling direct interface with ADCs without separate reference voltage sources.
It is an uncompensated device requiring external circuitry for temperature compensation and offset calibration - a design choice that simplifies custom compensation network integration while maintaining predictability due to NXP's standardized gauge architecture and stable TCVoff (±15 μV/°C) and TCVFSS (−0.22 to −0.16 %VFSS/°C).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Pressure Range | 0–10 kPa full-scale gauge pressure (P1 > P2); supports low-pressure air movement sensing with 0.145 PSI/kPa conversion. |
| Supply Voltage | 3.0–6.0 Vdc; ratiometric operation ensures output scaling matches supply, reducing need for precision voltage references. |
| Full Scale Span | 45–70 mV at 10 kPa; defines usable analog output swing for 12-bit+ ADC resolution without amplification in many designs. |
| Sensitivity | 5.5 mV/kPa typical; enables high-resolution pressure change detection down to ~0.18 kPa per LSB with 12-bit 3.3 V ADC. |
| Linearity Error | −0.5 to +5.0 %VFSS (end-point method); sets worst-case deviation budget for closed-loop control accuracy. |
| Response Time | 1.0 ms (10%–90%); suitable for dynamic pneumatic systems including robotics actuation feedback and leak rate monitoring. |
| Operating Temp | −40 °C to +125 °C; supports industrial and automotive under-hood environments when paired with external compensation. |
Pinout & Package
MPX12D is housed in the MPAK package (Case 1320A-02 / SOT1673-1), a 4-pin surface-mount chip carrier with integrated gauge port on the P1 side. The package provides silicone gel isolation of the die and wire bonds while transmitting pressure to the silicon diaphragm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - GND | Reference ground node | Common return path for supply and output signals; must be low-impedance to minimize offset drift and noise coupling. |
| 2 - +VOUT | Positive output terminal | Delivers voltage proportional to pressure differential; used with –VOUT to form differential output pair for noise rejection. |
| 3 - VS | Power supply input | Accepts 3.0–6.0 Vdc; powers internal Wheatstone bridge; output scales ratiometrically with this rail. |
| 4 - –VOUT | Negative output terminal | Completes differential output configuration; enables common-mode noise cancellation in noisy industrial environments. |
Key Features
| Feature | Design Value |
|---|---|
| Patented silicon shear-stress strain gauge | Eliminates thermal expansion mismatch between gauge and diaphragm, improving long-term stability vs. bonded-gauge alternatives. |
| Ratiometric output | Output voltage scales linearly with VS, allowing direct connection to microcontroller ADCs without external voltage reference components. |
| Gauge-ported MPAK package | Integrated pressure port on P1 side enables simple PCB-mounting in air-handling assemblies without external tubing manifolds. |
| Low offset drift | ±0.5 %VFSS offset stability after 1000-hour pulsed pressure/temperature cycling, supporting reliable long-life embedded deployments. |
| Differential output architecture | +VOUT/–VOUT pair rejects common-mode noise and improves SNR in electrically noisy factory-floor or medical equipment environments. |
Applications
| Leak Detection | Medical Diagnostics |
|---|---|
Use Scenario: Monitoring pressure decay in sealed respiratory circuits or gas delivery lines to identify sub-ml/min leaks. IC Role / Device Role / Timing Role: Primary pressure transducer measuring differential pressure drop over time with 1 ms response capability. Use Value: Enables detection of <10 Pa/min decay using 12-bit sampling at 100 Hz, meeting ISO 80601-2-12 requirements for ventilator integrity checks. |
Use Scenario: Measuring airway pressure waveforms during spirometry or non-invasive ventilation therapy. IC Role / Device Role / Timing Role: Low-noise, fast-response gauge sensor capturing inhalation/exhalation dynamics up to 10 Hz. Use Value: 5.5 mV/kPa sensitivity and ±0.1%VFSS hysteresis support accurate peak inspiratory pressure (PIP) and PEEP tracking within clinical tolerances. |
| Pneumatic Control Systems | Environmental Control Systems |
Use Scenario: Closed-loop regulation of compressed air flow in automated valve actuators or robotic grippers. IC Role / Device Role / Timing Role: Feedback element in PID-controlled pressure loop with real-time 1 ms update rate. Use Value: Ratiometric output eliminates supply rail drift errors; differential outputs suppress EMI from nearby solenoid drivers. |
Use Scenario: Monitoring HVAC duct static pressure to modulate fan speed and maintain airflow setpoints. IC Role / Device Role / Timing Role: Low-cost, stable gauge sensor interfaced to 8-bit MCU with minimal external components. Use Value: −40 °C to +125 °C operating range and predictable TCVFSS allow field calibration-free operation across seasonal ambient shifts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar gauge pressure sensing applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MPXV12GW6U | Discontinued NXP part; identical 10 kPa range and MPAK package but specified for wider −40 °C to +150 °C operation. | Legacy replacement only; no new production; requires qualification revalidation if substituted. | Select only for existing-design continuity with full lifecycle documentation review. |
| MPX5100DP | 100 kPa differential range, compensated, 5 V ratiometric output; larger SO-8 package; includes on-chip signal conditioning. | Higher-range, plug-and-play alternative requiring no external compensation network but less resolution per kPa. | Choose when system-level temperature compensation is impractical and 10× higher pressure range is acceptable. |
Compared with MPX12D, MPXV12GW6U offers extended temperature tolerance but lacks active support, while MPX5100DP trades resolution and cost for built-in compensation and ease of integration - making MPX12D optimal for custom-compensated, cost-sensitive, low-pressure OEM designs.
Availability
MPX12D is available at Aetrix Electronics and suitable for pneumatic control systems, medical diagnostics equipment, and environmental control systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MPX12D 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 headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and IoT applications.
The MPX12D belongs to NXP's legacy MPX-series uncompensated pressure sensors, designed specifically for manufacturers needing predictable, low-cost gauge transducers where custom external temperature compensation and signal conditioning are implemented at the system level.
FAQ
What is the pressure type and measurement range of the MPX12D?
The MPX12D is a gauge pressure sensor with a specified operating range of 0–10 kPa (0–1.45 PSI), where pressure is measured relative to ambient atmospheric pressure on the P2 side. It is designed for P1 > P2 differential operation, with the pressure port located on the P1 side identified by the physical port on the MPAK package. This range makes MPX12D ideal for low-pressure air movement and leak detection applications.
Does the MPX12D include built-in temperature compensation?
No, the MPX12D is an uncompensated sensor. Its output exhibits temperature-dependent full-scale span (TCVFSS: −0.22 to −0.16 %VFSS/°C) and offset (TCVoff: ±15 μV/°C), requiring external circuitry or algorithmic compensation. NXP provides guidance in Application Note AN840 for designing resistive networks or digital correction methods - a deliberate design choice to give manufacturers flexibility in optimizing compensation for their specific thermal environment and accuracy targets. MPX12D thus retains its role as a foundational transducer, not a complete subsystem.
What package and pin configuration does the MPX12D use?
The MPX12D uses the MPAK package (Case 1320A-02 / SOT1673-1), a 4-pin surface-mount chip carrier with a molded gauge port on the P1 side. Pin 1 is GND, Pin 2 is +VOUT, Pin 3 is VS (3.0–6.0 Vdc), and Pin 4 is –VOUT. This differential output configuration supports noise-immune signal acquisition, and the package's silicone gel encapsulation protects the die while transmitting pressure to the silicon diaphragm - critical for long-term reliability in unsealed environments.
How does the ratiometric output of the MPX12D affect system design?
The MPX12D's output voltage scales proportionally with its supply voltage (VS), meaning VOUT = (Voff + Sensitivity × P) × (VS / Vref), where Vref is nominal excitation. This ratiometric behavior allows direct connection to an ADC's reference voltage rail - for example, tying VS and ADC VREF to the same 3.3 V source eliminates gain error from supply drift. As a result, MPX12D reduces BOM count and layout complexity in microcontroller-based systems, though designers must ensure stable VS regulation and proper grounding to preserve offset accuracy.
What are the key reliability specifications for the MPX12D in long-term deployment?
The MPX12D demonstrates robust long-term stability with ±0.5 %VFSS offset shift after 1000 hours of pulsed pressure/temperature cycling (Offset Stability test), ±0.1 %VFSS pressure hysteresis over 0–10 kPa, and ±0.5 %VFSS temperature hysteresis across −40 °C to +125 °C. Its burst pressure rating is 100 kPa and overpressure limit is 75 kPa - providing 7.5× safety margin above full scale. These values confirm suitability for industrial and medical equipment where calibration intervals exceed 12 months and field failure modes must be minimized.
MPX12D Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- MPX12
- Package/Case:
- 4-SIP Module
- Packaging:
- Tray
- Product Status:
- Obsolete
- Applications:
- Board Mount
- Pressure Type:
- Differential
- Operating Pressure:
- 1.45PSI (10kPa)
- Output Type:
- Wheatstone Bridge
- Output:
- 0 mV ~ 55 mV (3V)
- Accuracy:
- ±5%
- Voltage - Supply:
- 3V ~ 6V
- Port Size:
- -
- Port Style:
- No Port
- Features:
- -
- Termination Style:
- PC Pin
- Maximum Pressure:
- 10.88PSI (75kPa)
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- -
MPX12D FAQ
1.How can I place an order for MPX12D through Aetrix?
Please submit a Request for Quotation (RFQ) for MPX12D 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 MPX12D reliable?
The price and inventory of MPX12D are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPX12D is usually 5 days.
3.What payment methods are accepted for MPX12D?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPX12D transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPX12D?
MPX12D orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPX12D 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 MPX12D?
For technical support, including MPX12D datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPX12D requirements.
6.How does Aetrix verify that MPX12D is sourced from the original manufacturer or authorized distributors?
All MPX12D 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 MPX12D meets industry standards.
7.What is the process for return or replacement of MPX12D?
All MPX12D units undergo pre-shipment inspection (PSI). If there is an issue with MPX12D, 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 MPX12D part is unused and in its original packaging.
Return procedure for MPX12D:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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