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NXP Semiconductors MPXAZ4100A6U
- Part No.:
- MPXAZ4100A6U
- Manufacturer:
- NXP Semiconductors
- Category:
- Pressure Sensors, Transducers
- Package:
- 8-SMD Module
- Datasheet:
-
MPXAZ4100A6U.pdf
- Description:
- SENSOR 15.23PSIA 4.9V
- Quantity:
- Payment:
- Shipping:
Inventory:3,896
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Product details
Overview
MPXAZ4100A6U from Freescale Semiconductor is a monolithic, signal-conditioned silicon pressure sensor designed for manifold absolute pressure (MAP) sensing in internal combustion 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 accuracy across 0°C to 85°C, and operates from a 4.85–5.35 V supply. Its role is to provide real-time intake manifold pressure data for fuel injection calculation.
For engineers reviewing the MPXAZ4100A6U datasheet, MPXAZ4100A6U pinout, MPXAZ4100A6U application, or MPXAZ4100A6U equivalent, this page provides verified technical context, package mapping, functional specifications, and automotive-grade alternative options aligned with OEM engine management requirements.
Technical Context
The MPXAZ4100A6U integrates a piezoresistive sensing element with on-chip thin-film temperature compensation, dual-stage gain amplification, and ground-reference shift circuitry - all fabricated using micromachined silicon and bipolar processing. Its output is ratiometric to supply voltage (VS), enabling direct interface with microcontroller ADCs without external scaling.
It features a sealed vacuum reference cavity and fluoro-silicone gel die coat for media resistance, supporting operation in high-humidity and common automotive fluid environments. The device requires the decoupling network shown in Figure 3 (1.0 µF + 0.01 µF + 470 pF) to meet specified electrical performance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Pressure Range | 20–105 kPa (2.9–15.2 psi); covers full engine vacuum to near-atmospheric boost conditions in naturally aspirated and mild forced-induction engines. |
| Output Voltage Range | 0.3–4.9 V at VS = 5.1 V; ratiometric transfer function enables robust A/D conversion without calibration per unit. |
| Accuracy | ±1.8% of full-scale span (VFSS) over 0°C to 85°C; includes linearity, hysteresis, TcOffset, and TcSpan contributions per Table 2. |
| Sensitivity | 54 mV/kPa nominal; supports high-resolution pressure resolution (~0.185 kPa per LSB with 12-bit 5 V ADC). |
| Response Time | 1.0 ms (10%–90%); fast enough to track transient manifold pressure changes during throttle snap tests. |
| Operating Temperature | –40°C to +125°C ambient; qualified for under-hood placement with full functionality across engine cold-start to hot-soak conditions. |
| Supply Current | 7.0 mA typical at 5.1 V; compatible with standard 100 mA automotive LDOs and low-power ECU power domains. |
Pinout & Package
Durable thermoplastic (PPS) surface-mount small outline package, Case 482-01, 8-pin, 10.54 mm × 10.54 mm footprint with 2.54 mm lead pitch. Pin 1 identified by notch; pins 1, 5, 6, 7, and 8 are internal no-connects.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 2 (VS) | Supply Voltage Input | Accepts 4.85–5.35 V DC; must be decoupled per Figure 3 to maintain accuracy and noise immunity. |
| Pin 3 (GND) | Analog Ground Reference | Common return for VS and VOUT; requires low-impedance connection to system AGND plane. |
| Pin 4 (VOUT) | Analog Output Signal | 0.3–4.9 V ratiometric voltage proportional to absolute pressure; directly interfaces to MCU ADC inputs. |
Key Features
| Feature | Design Value |
|---|---|
| On-chip temperature compensation | Full compensation over –40°C to +125°C enables single-point calibration at room temperature; eliminates need for external thermistor or lookup tables. |
| Gel die coat + PPS package | Provides long-term reliability in humid environments and resistance to gasoline vapor, oil mist, and brake fluid exposure per factory media compatibility guidance. |
| Ratiometric output | Output scales linearly with VS; removes sensitivity to supply rail drift and simplifies system-level calibration in noisy automotive power domains. |
| Sealed vacuum reference | Enables true absolute pressure measurement referenced to hard vacuum - critical for accurate air mass calculation independent of barometric variation. |
Applications
| Engine Air Mass Calculation | Throttle Response Monitoring |
|---|---|
Use Scenario: Real-time intake manifold pressure sampling during closed-loop fuel control in gasoline port-injected engines. IC Role / Device Role / Timing Role: Absolute pressure transducer providing primary input to air-fuel ratio computation in ECU software. Use Value: Enables stoichiometric combustion across idle, cruise, and acceleration by delivering <1.8% VFSS error pressure data at ≤1 ms update rate. | Use Scenario: Detecting rapid pressure transients during wide-open-throttle events and deceleration fuel cut-off. IC Role / Device Role / Timing Role: High-speed analog sensor feeding time-critical transient detection logic in engine timing maps. Use Value: 1.0 ms response time ensures accurate capture of pressure spikes/dips within 10 ms windows required for torque-based ignition timing adjustments. |
| Boost Pressure Monitoring (Naturally Aspirated) | Barometric Compensation Backup |
Use Scenario: Detecting unintended positive manifold pressure indicating EGR valve leakage or turbocharger failure in NA engines. IC Role / Device Role / Timing Role: Fault-detection sensor verifying expected vacuum levels during steady-state operation. Use Value: 20–105 kPa range covers full vacuum-to-atmospheric envelope, allowing reliable identification of >5 kPa deviation from expected MAP baseline. | Use Scenario: Providing secondary barometric reference when dedicated BAP sensor fails or is absent in cost-optimized ECUs. IC Role / Device Role / Timing Role: Standby absolute pressure reference used during engine-off key cycle to store local atmospheric pressure. Use Value: Sealed vacuum reference and –40°C to +125°C operation allow stable barometric reading acquisition during vehicle park mode without thermal drift artifacts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar absolute pressure sensing applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MPXH6115A6U | Wider 15–115 kPa range; higher 115 kPa max rating; same Case 482 package and pinout. | Supports boosted engines up to ~1.1 bar gauge; not drop-in for MAP-only NA calibrations due to extended upper range. | Select MPXH6115A6U only if system requires headroom above 105 kPa or plans future turbo integration. |
| SP12-001 | Discrete MEMS + ASIC solution; 20–110 kPa range; 3.3 V supply; I²C digital output. | Requires firmware I²C stack and digital filtering; eliminates analog noise susceptibility but adds software overhead. | Choose SP12-001 when migrating to digital sensor architecture or consolidating multiple analog sensors onto shared bus. |
Compared with MPXAZ4100A6U, MPXH6115A6U offers extended pressure headroom while maintaining identical mechanical and electrical interface - ideal for platform scalability; SP12-001 trades analog simplicity for digital configurability and multi-sensor bus efficiency, requiring redesign of signal chain and firmware.
Availability
MPXAZ4100A6U is available at Aetrix Electronics and suitable for engine control units, automotive diagnostic tools, and industrial vacuum monitoring systems requiring stable component supply and long-lifecycle support.
Supply support for MPXAZ4100A6U 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) is a fabless semiconductor company specializing in automotive, industrial, and networking ICs, with deep expertise in sensor signal conditioning and embedded control.
The MPXAZ4100A6U belongs to Freescale's legacy MAP sensor product line, engineered specifically for cost-sensitive, high-reliability engine management applications where analog ratiometric output, media resistance, and under-hood thermal stability are mandatory.
FAQ
What is the operating pressure range of the MPXAZ4100A6U?
The MPXAZ4100A6U operates over a 20–105 kPa absolute pressure range (2.9–15.2 psi), covering full engine vacuum to near-atmospheric conditions. This range is validated for use in naturally aspirated gasoline engine intake manifolds. The device saturates outside this band, and maximum rated pressure is 400 kPa per absolute maximum ratings.
Does the MPXAZ4100A6U require external temperature compensation?
No, the MPXAZ4100A6U does not require external temperature compensation. It integrates on-chip thin-film temperature compensation circuitry that maintains ±1.8% VFSS accuracy from 0°C to 85°C. Full operation is guaranteed from –40°C to +125°C ambient, with compensation active across the entire range.
What is the supply voltage requirement for MPXAZ4100A6U?
The MPXAZ4100A6U requires a supply voltage of 4.85–5.35 V DC, with 5.1 V nominal. Its output is ratiometric - meaning VOUT scales linearly with VS - so variations within this range do not affect measurement accuracy. Decoupling per Figure 3 (1.0 µF + 0.01 µF + 470 pF) is mandatory to meet published specs.
Is MPXAZ4100A6U pin-compatible with other Freescale MAP sensors?
Yes, MPXAZ4100A6U is pin-compatible with other Case 482 devices in the MPXAZ4100A series, including MPXAZ4100A6T1 and MPXAZ4100AC6U. All share identical pinout (VS, GND, VOUT), same 8-pin SOP footprint, and no-connect configuration for pins 1/5/6/7/8. Mechanical and electrical interface remains consistent across these variants.
Can MPXAZ4100A6U be used in non-automotive applications?
Yes, MPXAZ4100A6U is suitable for non-automotive applications requiring absolute pressure measurement in harsh environments, such as industrial vacuum chambers, HVAC static pressure monitoring, and medical breathing apparatus. Its gel die coat and PPS package provide resistance to humidity and common non-corrosive media, though media compatibility must be verified per application.
MPXAZ4100A6U Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- MPXAZ4100A
- Package/Case:
- 8-SMD Module
- Packaging:
- Tube
- 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:
- SMD (SMT) Tab
- Maximum Pressure:
- 58.02PSI (400kPa)
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- -
MPXAZ4100A6U FAQ
1.How can I place an order for MPXAZ4100A6U through Aetrix?
Please submit a Request for Quotation (RFQ) for MPXAZ4100A6U 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 MPXAZ4100A6U reliable?
The price and inventory of MPXAZ4100A6U are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPXAZ4100A6U is usually 5 days.
3.What payment methods are accepted for MPXAZ4100A6U?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPXAZ4100A6U transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPXAZ4100A6U?
MPXAZ4100A6U orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPXAZ4100A6U 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 MPXAZ4100A6U?
For technical support, including MPXAZ4100A6U datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPXAZ4100A6U requirements.
6.How does Aetrix verify that MPXAZ4100A6U is sourced from the original manufacturer or authorized distributors?
All MPXAZ4100A6U 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 MPXAZ4100A6U meets industry standards.
7.What is the process for return or replacement of MPXAZ4100A6U?
All MPXAZ4100A6U units undergo pre-shipment inspection (PSI). If there is an issue with MPXAZ4100A6U, 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 MPXAZ4100A6U part is unused and in its original packaging.
Return procedure for MPXAZ4100A6U:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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