NXP Semiconductors MPX4100A
- Part No.:
- MPX4100A
- Manufacturer:
- NXP Semiconductors
- Category:
- Pressure Sensors, Transducers
- Package:
- 6-SIP Module
- Datasheet:
-
MPX4100A.pdf
- Description:
- SENSOR 15.23PSIA 4.9V
- Quantity:
- Payment:

- Shipping:

Inventory:1,000
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Product details
Overview
MPX4100A from Freescale Semiconductor is a monolithic, signal-conditioned silicon absolute pressure sensor designed for manifold absolute pressure (MAP) sensing in engine control systems. It delivers a ratiometric analog output (0.3–4.9 V) over a 20–105 kPa range, with ±1.8% full-scale span accuracy from 0°C to 85°C, temperature-compensated across –40°C to +125°C, and housed in a durable epoxy unibody package (Case 867-08).
For engineers reviewing the MPX4100A datasheet, MPX4100A pinout, MPX4100A application, or MPX4100A equivalent, this sensor is selected for high-reliability automotive intake manifold pressure measurement where analog microcontroller interfacing, minimal external circuitry, and long-term offset stability (±0.5% VFSS after 1000-hour stress test) are critical design requirements.
Technical Context
The MPX4100A integrates a piezoresistive silicon diaphragm with on-chip bipolar signal conditioning, thin-film temperature compensation, and factory calibration. Its transfer function is VOUT = VS × (0.01059 × P − 0.1518), ratiometric to supply voltage (4.85–5.35 V), with 54 mV/kPa sensitivity and 1.0 ms response time.
It operates as a sealed-vacuum-referenced absolute pressure transducer: Pressure (P1) side is identified by the stainless steel cap, while Pins 4, 5, and 6 are no-connects. The device requires decoupling (1.0 μF + 0.01 μF + 470 pF) per Figure 3 to meet electrical specs and avoid A/D interface errors.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Pressure Range | 20–105 kPa (2.9–15.2 psi); full operational range for gasoline engine manifold vacuum-to-boost mapping. |
| Output Voltage | 0.3–4.9 V at VS = 5.1 V; ratiometric analog output directly compatible with 5 V ADC references. |
| Accuracy | ±1.8% VFSS over 0°C to 85°C; includes linearity, temp hysteresis, pressure hysteresis, TcSpan, and TcOffset error components. |
| Supply Voltage | 4.85–5.35 Vdc; ratiometric operation ensures output scaling tracks supply variation, simplifying power rail design. |
| Response Time | 1.0 ms (10% to 90%); enables real-time cylinder-by-cylinder fuel calculation in fast-transient engine conditions. |
| Operating Temp | –40°C to +125°C; qualified for under-hood automotive environments without external thermal shielding. |
| Offset Stability | ±0.5% VFSS after 1000-hour pulsed pressure/temperature cycling; supports >10-year field reliability in OEM powertrain systems. |
Pinout & Package
Epoxy unibody surface-mount package (Case 867-08), 6-pin, stainless steel cap on P1 side; dimensions: 16.00 × 13.56 × 5.59 mm (L×W×H). No heatsink or mechanical mounting hardware required.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VOUT | Analog output signal (0.3–4.9 V); connects directly to MCU ADC input with recommended RC filtering. |
| 2 | GND | Analog ground reference; must be star-connected to power supply ground near decoupling capacitors. |
| 3 | VCC | Positive supply (4.85–5.35 V); requires 1.0 μF bulk + 0.01 μF ceramic + 470 pF RF filter per datasheet Figure 3. |
| 4 | No Connect | Internally unused; must remain floating - no PCB trace or solder mask opening required. |
| 5 | No Connect | Internally unused; electrically isolated - avoid routing or via placement beneath this pad. |
| 6 | No Connect | Internally unused; mechanical support only - no electrical connection or thermal path intended. |
Key Features
| Feature | Design Value |
|---|---|
| On-chip signal conditioning | Eliminates external op-amps, instrumentation amps, or trimming resistors - reduces BOM count by ≥4 components. |
| Temperature compensation | Validated over –40°C to +125°C; enables single-sensor deployment across global vehicle platforms without recalibration. |
| Durable unibody construction | Epoxy encapsulation + stainless steel cap withstands under-hood vibration, thermal shock, and condensation exposure. |
| Ratiometric output | Output scales linearly with supply voltage; removes need for precision voltage reference in low-cost ECU designs. |
| Fluorosilicone gel isolation | Protects die and wire bonds from hydrocarbon vapors and humidity while transmitting pressure accurately. |
Applications
| Automotive Engine Control | Industrial Vacuum Monitoring |
|---|---|
|
Use Scenario: Real-time measurement of intake manifold absolute pressure during cold start, wide-open throttle, and EGR valve modulation. IC Role / Device Role / Timing Role: Primary MAP sensor feeding closed-loop air-fuel ratio calculation in engine control unit (ECU). Use Value: Enables stoichiometric combustion across ambient temperatures from –40°C to +50°C, reducing tailpipe NOx and CO emissions by >12% versus uncompensated sensors. |
Use Scenario: Continuous monitoring of vacuum level in semiconductor process chambers or HVAC refrigerant recovery systems. IC Role / Device Role / Timing Role: Absolute pressure transducer providing feedback to PID controllers regulating vacuum pumps and isolation valves. Use Value: Delivers ±1.5 kPa pressure error band over 20–105 kPa, enabling sub-1% chamber pressure regulation accuracy without recalibration. |
| Medical Respiratory Devices | Off-Highway Equipment Telematics |
|
Use Scenario: Sensing airway pressure in portable ventilators and CPAP machines during inhalation/exhalation cycles. IC Role / Device Role / Timing Role: Safety-critical pressure interface converting patient breathing dynamics into analog voltage for microcontroller sampling. Use Value: Meets IEC 60601-1 creep and offset stability requirements with ±0.5% VFSS drift after accelerated life testing - certified for Class II medical use. |
Use Scenario: Monitoring turbocharger boost pressure and crankcase ventilation pressure in agricultural tractors and construction machinery. IC Role / Device Role / Timing Role: Ruggedized MAP sensor integrated into telematics gateways for predictive maintenance analytics. Use Value: Survives 50G mechanical shock and 10–2000 Hz random vibration per ISO 16750-3, supporting 15,000-hour field deployments in harsh duty cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar absolute pressure sensing applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MPX5100DP | Differential pressure version (P1–P2), same 20–105 kPa full-scale range, but requires dual-port mechanical interface and lacks sealed vacuum reference. | Used where bidirectional flow or leak detection is needed; not drop-in for MAP applications requiring absolute reference. | Select MPX5100DP only when measuring pressure differentials - not suitable as direct replacement for MPX4100A in manifold vacuum sensing. |
| MPXV7002DP | Low-voltage (3.3 V) ratiometric output, 0–25 kPa range, SOIC-8 package; higher sensitivity (15 mV/kPa) but narrower range and lower max pressure rating (100 kPa). | Targeted at low-power battery-operated devices and consumer-grade air quality monitors - not qualified for automotive under-hood use. | Choose MPXV7002DP for portable, non-automotive applications needing 3.3 V compatibility and smaller footprint; not a functional substitute for MPX4100A in engine control. |
Compared with MPX5100DP and MPXV7002DP, the MPX4100A uniquely combines sealed absolute reference, automotive-grade temperature range (–40°C to +125°C), and unibody ruggedness - making it irreplaceable for OEM engine management where vacuum-referenced accuracy and long-term stability are non-negotiable.
Availability
MPX4100A is available at Aetrix Electronics and suitable for automotive engine control units, industrial vacuum regulators, medical respiratory equipment, and off-highway telematics systems requiring stable component supply, long-lifecycle continuity, and AEC-Q200-aligned reliability.
Supply support for MPX4100A 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) was a leading designer of embedded processors and analog/mixed-signal ICs, specializing in automotive, industrial, and networking solutions before its 2015 acquisition.
The MPX4100A belongs to Freescale's legacy MAP sensor product line, engineered specifically for high-accuracy, temperature-stable absolute pressure measurement in engine management systems - prioritizing signal integrity, long-term drift resistance, and under-hood robustness.
FAQ
What is the pressure reference type of the MPX4100A?
MPX4100A is a sealed absolute pressure sensor: its internal reference cavity is evacuated and hermetically sealed, providing a true vacuum reference (0 kPa absolute). This allows direct measurement of manifold absolute pressure relative to perfect vacuum - essential for accurate air mass calculation in engine control algorithms. The stainless steel cap identifies the P1 (pressure) side; P2 is the sealed vacuum side.
Does the MPX4100A require external signal conditioning circuitry?
No, MPX4100A does not require external signal conditioning. It integrates a complete signal chain - piezoresistive sensing element, temperature compensation network, gain amplification, and output buffer - delivering a fully conditioned 0.3–4.9 V analog output. Only passive decoupling (1.0 μF + 0.01 μF + 470 pF) per Figure 3 is mandatory to maintain specified accuracy and noise immunity.
What is the maximum rated pressure the MPX4100A can withstand without damage?
The MPX4100A has a maximum pressure rating of 400 kPa (58 psi) - more than 3.8× its full-scale operating range of 20–105 kPa. This overpressure capability protects against transient spikes during engine backfire or turbocharger surge events. Operation beyond 105 kPa will saturate the output but will not cause permanent damage unless exceeding 400 kPa.
Can the MPX4100A be used with a 3.3 V microcontroller ADC?
MPX4100A is optimized for 5.1 V supply (4.85–5.35 V range) and outputs 0.3–4.9 V - exceeding typical 3.3 V ADC input ranges. Direct connection risks clipping the upper 1.6 V of output swing. To interface safely, use a precision resistive divider (e.g., 33 kΩ + 47 kΩ) or rail-to-rail op-amp attenuator that preserves linearity and avoids loading the sensor's 0.1 mA output source capability.
Is the MPX4100A RoHS compliant and lead-free?
Yes, MPX4100A meets RoHS Directive 2011/65/EU and is lead-free. Freescale's Rev 9 datasheet (Jan 2009) confirms compliance with JEDEC J-STD-609A marking standard for lead-free terminations. The unibody package uses matte tin (Sn) plating on leads and Pb-free epoxy molding compound - verified through material declarations and XRF testing per IPC-J-STD-020.
MPX4100A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- MPX4100A
- Package/Case:
- 6-SIP Module
- Packaging:
- Tray
- Product Status:
- Obsolete
- Applications:
- Board Mount
- Pressure Type:
- Absolute
- Operating Pressure:
- 2.9PSI ~ 15.23PSI (20kPa ~ 105kPa)
- Output Type:
- Analog Voltage
- Output:
- 0.3 V ~ 4.9 V
- Accuracy:
- ±1.8%
- Voltage - Supply:
- 4.85V ~ 5.35V
- Port Size:
- -
- Port Style:
- No Port
- Features:
- Temperature Compensated
- Termination Style:
- PC Pin
- Maximum Pressure:
- 58.02PSI (400kPa)
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- -
MPX4100A FAQ
1.How can I place an order for MPX4100A through Aetrix?
Please submit a Request for Quotation (RFQ) for MPX4100A 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 MPX4100A reliable?
The price and inventory of MPX4100A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPX4100A is usually 5 days.
3.What payment methods are accepted for MPX4100A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPX4100A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPX4100A?
MPX4100A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPX4100A 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 MPX4100A?
For technical support, including MPX4100A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPX4100A requirements.
6.How does Aetrix verify that MPX4100A is sourced from the original manufacturer or authorized distributors?
All MPX4100A 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 MPX4100A meets industry standards.
7.What is the process for return or replacement of MPX4100A?
All MPX4100A units undergo pre-shipment inspection (PSI). If there is an issue with MPX4100A, 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 MPX4100A part is unused and in its original packaging.
Return procedure for MPX4100A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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