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NXP Semiconductors MPXM12GST1
- Part No.:
- MPXM12GST1
- Manufacturer:
- NXP Semiconductors
- Category:
- Pressure Sensors, Transducers
- Package:
- 5-SMD Module, Top Port
- Datasheet:
-
MPXM12GST1.pdf
- Description:
- SENSOR 1.45PSIG 0.12" .055V MPAK
- Quantity:
- Payment:
- Shipping:
Inventory:1,091
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Product details
Overview
MPXM12GST1 from NXP Semiconductors is a silicon piezoresistive gauge pressure sensor delivering ratiometric, linear voltage output proportional to applied differential pressure (P1 > P2) up to 10 kPa. It features uncompensated operation, 4-pin MPAK package (Case 1320A-02), ±0.1%VFSS pressure hysteresis, and operates from −40 °C to +125 °C - used in pneumatic control systems requiring low-cost, externally compensated sensing.
For engineers reviewing the MPXM12GST1 datasheet, MPXM12GST1 pinout, MPXM12GST1 application, or MPXM12GST1 equivalent, this page provides verified technical context, pin-level design meaning, real-world use scenarios, and validated alternative options for pressure-sensing subsystems in industrial and medical diagnostics equipment.
Technical Context
The MPXM12GST1 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 with supply voltage (3.0–6.0 Vdc), enabling direct interface with ADCs without external reference buffering.
It operates exclusively in gauge configuration with a ported P1 side (silicone gel-isolated) and open P2 reference cavity. Output is differential (±VOUT), requiring instrumentation amplifier input or bridge-read circuitry - not single-ended or I²C/serial interface.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Pressure Range | 0–10 kPa full-scale gauge pressure (P1 > P2); supports air movement and leak detection at sub-atmospheric differentials. |
| Supply Voltage | 3.0–6.0 Vdc; ratiometric output ensures consistent scaling across supply variations without recalibration. |
| Full Scale Span | 45–70 mV at 10 kPa; defines usable analog output swing for 12-bit+ ADC resolution with ≥1.5 mV/kPa sensitivity. |
| Offset Voltage | 0–35 mV at 0 kPa; requires trimming or software nulling in signal chain for zero-pressure baseline accuracy. |
| Linearity Error | −0.5 to +5.0 %VFSS (end-point method); sets worst-case nonlinearity budget for closed-loop feedback calibration. |
| Temperature Hysteresis | ±0.5 %VFSS over −40 °C to +125 °C; constrains repeatability error after thermal cycling in environmental controls. |
| Response Time | 1.0 ms (10%–90%); enables real-time monitoring of rapid pressure transients in robotics and pneumatic valves. |
Pinout & Package
MPXM12GST1 uses the MPAK surface-mount package (Case 1320A-02), a 4-pin, ported ceramic carrier with silicone gel isolation on the P1 side. The package is designed for PCB mounting with direct pressure port access and reflow-compatible soldering per AN3150.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: GND | Reference ground | Common return for supply and output; must be low-impedance to minimize offset drift in noisy environments. |
| 2: +VOUT | Differential output positive | High-side output terminal; connects to IN+ of instrumentation amplifier for noise-rejecting differential readout. |
| 3: VS | Power supply input | Accepts 3.0–6.0 Vdc; supplies Wheatstone bridge; ratiometric behavior ties output scaling directly to this rail. |
| 4: –VOUT | Differential output negative | Low-side output terminal; connects to IN− of instrumentation amplifier; completes balanced bridge output path. |
Key Features
| Feature | Design Value |
|---|---|
| Patented silicon shear-stress strain gauge | Eliminates thermal expansion mismatch between gauge and diaphragm - critical for stable long-term offset in unregulated ambient conditions. |
| Gauge-ported configuration | Enables direct P1-side pressure coupling via molded port; no external tubing or manifold required for air-flow sensing applications. |
| Ratiometric output | Output voltage scales linearly with VS; removes need for precision voltage reference when using same supply for ADC and sensor. |
| Low-cost uncompensated architecture | Allows OEMs to implement custom temperature compensation (e.g., resistor networks or microcontroller-based lookup) per system requirements. |
| Wide operating temperature range | −40 °C to +125 °C operation supports deployment in automotive HVAC, industrial enclosures, and portable medical devices. |
Applications
| Air Movement Control | Leak Detection |
|---|---|
|
Use Scenario: Monitoring airflow in HVAC ducts or fan-driven ventilation systems to maintain setpoint velocity or detect blockages. IC Role / Device Role / Timing Role: Gauge pressure sensor measuring differential pressure across an orifice plate or filter element. Use Value: 10 kPa range and 1 ms response enable real-time airflow regulation; low hysteresis ensures repeatable threshold triggering for fault alarms. |
Use Scenario: Detecting minute pressure decay in sealed enclosures (e.g., medical gas lines or vacuum chambers) over time. IC Role / Device Role / Timing Role: High-stability gauge sensor capturing slow pressure drift under constant bias conditions. Use Value: ±0.1%VFSS pressure hysteresis and ±0.5%VFSS offset stability over 1000-hour stress testing support reliable pass/fail thresholds. |
| Medical Diagnostics | Pneumatic Control Systems |
|
Use Scenario: Measuring respiratory pressure waveforms in portable spirometers or CPAP machines during patient inhalation/exhalation cycles. IC Role / Device Role / Timing Role: Low-noise, fast-response gauge transducer interfaced to low-power MCU ADC for waveform digitization. Use Value: 1.0 ms response time captures dynamic breath profiles; ratiometric output simplifies battery-powered signal conditioning. |
Use Scenario: Closed-loop pressure regulation in automated valve actuators or compressed-air tool manifolds. IC Role / Device Role / Timing Role: Primary feedback element in PID-controlled pneumatic circuits requiring millisecond-level update rates. Use Value: Full-scale span of 45–70 mV provides sufficient SNR for 12-bit ADCs; wide temp range ensures reliability in factory-floor environments. |
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 gauge range and MPAK package but with internal temperature compensation network. | Reduces external component count but lacks flexibility for custom calibration algorithms. | Select MPXM12GST1 when full control over compensation topology is required; avoid MPXV12GW6U due to obsolescence status. |
| MPX5100DP | Higher-range (100 kPa) differential sensor in 8-pin SOIC; includes on-chip signal conditioning and temperature compensation. | Suitable for higher-pressure pneumatic systems but incompatible pinout and larger footprint. | Choose MPXM12GST1 for cost-sensitive, space-constrained 10 kPa gauge applications where external signal conditioning is acceptable. |
Compared with MPXV12GW6U and MPX5100DP, MPXM12GST1 offers the lowest BOM cost and smallest PCB footprint for 10 kPa gauge sensing, at the expense of requiring external temperature compensation - making it optimal for high-volume, algorithm-driven designs.
Availability
MPXM12GST1 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 MPXM12GST1 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 markets.
The MPX12 series was designed as a foundational, low-cost gauge pressure sensing platform for manufacturers needing flexible, externally compensated transducers - prioritizing predictability, manufacturability, and integration into custom signal chains.
FAQ
What is the pressure port configuration of the MPXM12GST1?
The MPXM12GST1 is a gauge-pressure sensor with a single port on the P1 side (identified by the molded port on Case 1320A-02) and an open reference cavity on the P2 side. It measures differential pressure between ambient (P1) and atmospheric (P2) conditions - not absolute or sealed-reference pressure. This configuration is confirmed in Table 5 and Figure 2 of the MPX12 datasheet Rev. 12.
Does the MPXM12GST1 include built-in temperature compensation?
No, the MPXM12GST1 is explicitly an uncompensated sensor. Its datasheet states it "permits manufacturers to design and add their own external temperature compensation and signal conditioning networks." Temperature coefficients (TCVFSS = −0.16 to −0.22 %VFSS/°C; TCVoff = ±15 μV/°C) require external correction - unlike compensated variants such as MPXV12GW6U (now discontinued).
What is the recommended supply voltage range for stable operation of the MPXM12GST1?
The MPXM12GST1 operates reliably from 3.0 Vdc to 6.0 Vdc, as specified in Table 4 of the datasheet. Operation above 6.0 Vdc risks self-heating-induced errors; below 3.0 Vdc may reduce output signal-to-noise ratio and violate minimum excitation requirements for the internal Wheatstone bridge. Ratiometric behavior means output scales linearly with VS within this range.
Can the MPXM12GST1 be used for absolute pressure measurement?
No, the MPXM12GST1 is a gauge-pressure sensor only. Its P2 side is vented to atmosphere (not sealed or evacuated), so it measures pressure relative to ambient air - not absolute vacuum. Absolute pressure measurement requires a sealed-reference or vacuum-referenced device such as the MPX5500 series. Using MPXM12GST1 for absolute pressure would introduce uncontrolled ambient variation into readings.
What is the maximum overpressure rating for the MPXM12GST1 before permanent damage occurs?
The MPXM12GST1 has an overpressure rating of 75 kPa (Table 3), meaning it can withstand transient pressure spikes up to 7.5× its full-scale range (10 kPa) without mechanical failure. However, operation beyond 10 kPa invalidates accuracy specifications, and exposure to burst pressure (100 kPa) may cause irreversible diaphragm deformation or bond-wire fracture.
MPXM12GST1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- MPX12
- Package/Case:
- 5-SMD Module, Top Port
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Applications:
- Board Mount
- Pressure Type:
- Vented Gauge
- Operating Pressure:
- 1.45PSI (10kPa)
- Output Type:
- Wheatstone Bridge
- Output:
- 0 mV ~ 55 mV (3V)
- Accuracy:
- ±5%
- Voltage - Supply:
- 3V ~ 6V
- Port Size:
- Male - 0.12" (2.97mm) Tube
- Port Style:
- Barbless
- Features:
- -
- Termination Style:
- Gull Wing
- Maximum Pressure:
- 10.88PSI (75kPa)
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 5-MPAK
MPXM12GST1 FAQ
1.How can I place an order for MPXM12GST1 through Aetrix?
Please submit a Request for Quotation (RFQ) for MPXM12GST1 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 MPXM12GST1 reliable?
The price and inventory of MPXM12GST1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPXM12GST1 is usually 5 days.
3.What payment methods are accepted for MPXM12GST1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPXM12GST1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPXM12GST1?
MPXM12GST1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPXM12GST1 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 MPXM12GST1?
For technical support, including MPXM12GST1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPXM12GST1 requirements.
6.How does Aetrix verify that MPXM12GST1 is sourced from the original manufacturer or authorized distributors?
All MPXM12GST1 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 MPXM12GST1 meets industry standards.
7.What is the process for return or replacement of MPXM12GST1?
All MPXM12GST1 units undergo pre-shipment inspection (PSI). If there is an issue with MPXM12GST1, 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 MPXM12GST1 part is unused and in its original packaging.
Return procedure for MPXM12GST1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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