NXP Semiconductors MP3H6115A6U
- Part No.:
- MP3H6115A6U
- Manufacturer:
- NXP Semiconductors
- Category:
- Pressure Sensors, Transducers
- Package:
- 8-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
MP3H6115A6U.pdf
- Description:
- SENSOR 16.68PSIA 0.13" 2.8V SSOP
- Quantity:
- Payment:

- Shipping:

Inventory:4,305
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Product details
Overview
MP3H6115A6U from Freescale Semiconductor is an absolute pressure sensor with 15–115 kPa range, ratiometric analog output (2.7–3.3 V supply), ±1.5% full-scale accuracy over 0 °C to 85 °C, and on-chip temperature compensation from –40 °C to +125 °C. It serves as a signal-conditioned transducer in engine MAP sensing, barometric altitude measurement, and industrial pressure monitoring.
For engineers reviewing the MP3H6115A6U datasheet, MP3H6115A6U pinout, MP3H6115A6U application, or MP3H6115A6U equivalent, key selection criteria include its absolute reference vacuum cavity, SSOP-8 package with 5 DNC pins, 1.0 ms response time, and fluorosilicone-gel-isolated silicon diaphragm for media compatibility with dry air.
Technical Context
The MP3H6115A6U integrates a piezoresistive silicon sensing element with bipolar op-amp gain stages, thin-film resistor networks for calibration, and on-die temperature compensation circuitry. Its transfer function is VOUT = VS × (0.009 × P – 0.095) ± error, where VS is supply voltage and P is absolute pressure in kPa.
It operates as a ratiometric device: output voltage scales linearly with supply voltage, enabling direct ADC interfacing without external reference. The sealed vacuum reference cavity ensures true absolute pressure measurement, and the fluorosilicone gel protects wire bonds while transmitting pressure to the diaphragm.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Pressure Range | 15–115 kPa absolute - defines usable operating band for altimetry and MAP applications. |
| Supply Voltage | 2.7–3.3 VDC - ratiometric operation enables stable output across supply variation. |
| Output Voltage Range | 0.079–2.861 VDC at VS = 3.0 V - spans >2.7 V full-scale span for high-resolution ADC capture. |
| Accuracy | ±1.5% of full-scale span (VFSS) over 0–85 °C - supports <1.7 kPa total error in barometric use. |
| Response Time | 1.0 ms (10%–90%) - suitable for dynamic manifold pressure tracking in ICE control loops. |
| Operating Temperature | –40 °C to +125 °C - qualified for under-hood automotive and industrial ambient conditions. |
| Sensitivity | 27 mV/kPa - provides ~3.0 V output swing across full range, easing analog front-end design. |
Pinout & Package
MP3H6115A6U uses the surface-mount small outline package Case 98ARH99066A (SSOP-8), with chamfered corner marking Pin 1. Pins 1, 5–8 are internal connections and must remain unconnected in PCB layout.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | DNC | Do not connect - internal test or process tie; chamfered corner identifies this pin. |
| Pin 2 | VS | Voltage supply input - powers all on-chip circuitry; requires local 100 nF decoupling. |
| Pin 3 | GND | Analog ground reference - must be low-impedance return path shared with ADC ground. |
| Pin 4 | VOUT | Analog output - ratiometric, buffered voltage proportional to absolute pressure; connects directly to ADC input. |
| Pins 5–8 | DNC | Do not connect - internal device connections; floating or grounded traces cause calibration drift. |
Key Features
| Feature | Design Value |
|---|---|
| On-chip temperature compensation | Validated from –40 °C to +125 °C - eliminates need for external thermistor or digital correction in wide-temp deployments. |
| Fluorosilicone gel isolation | Protects die and wire bonds while transmitting pressure - enables reliable operation with dry air media without hermetic sealing. |
| Ratiometric output architecture | Output scales with VS - allows direct interface to microcontroller ADCs without precision voltage reference. |
| High sensitivity (27 mV/kPa) | Delivers >2.7 V full-scale span at 3.0 V supply - improves SNR and reduces quantization error in 10–12-bit ADC systems. |
| 1.0 ms response time | Supports real-time pressure dynamics - meets transient requirements for intake manifold pressure feedback in closed-loop engine control. |
Applications
| Aviation Altimeters | Engine MAP Sensing |
|---|---|
Use Scenario: Measuring atmospheric pressure to derive calibrated altitude in unmanned aerial vehicles and portable weather instruments. IC Role / Device Role / Timing Role: Absolute pressure transducer providing primary barometric reference with vacuum-referenced diaphragm. Use Value: ±1.5% VFSS accuracy and –40 °C to +125 °C operation enable reliable altitude resolution better than ±30 m up to 11 km. |
Use Scenario: Monitoring intake manifold absolute pressure for fuel injection timing and air mass calculation in gasoline engines. IC Role / Device Role / Timing Role: Signal-conditioned analog pressure sensor feeding ECU ADC with ratiometric output synchronized to supply rail. Use Value: 1.0 ms response time and 27 mV/kPa sensitivity support fast transient detection during throttle tip-in and load changes. |
| Industrial Process Controls | Weather Station Barometers |
Use Scenario: Closed-loop pressure regulation in HVAC ducts, pneumatic actuators, and compressed air monitoring systems. IC Role / Device Role / Timing Role: Absolute pressure sensing node in distributed industrial I/O modules with analog output interface. Use Value: SSOP-8 footprint and –40 °C to +125 °C rating allow integration into DIN-rail controllers without external thermal management. |
Use Scenario: Long-term ambient pressure logging in outdoor environmental monitoring stations and smart home weather hubs. IC Role / Device Role / Timing Role: Low-drift absolute pressure sensor with offset stability of ±0.25% VFSS over 1000 pressure cycles. Use Value: Fluorosilicone gel encapsulation and on-chip calibration ensure <0.5 kPa/year long-term drift in unheated outdoor enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar absolute pressure sensing applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MPX5114A | Wider 15–115 kPa range but ±2.0% VFSS accuracy; no fluorosilicone gel; TO-92 package. | Limited to lower-reliability consumer-grade barometers; lacks SSOP-8 surface-mount compatibility. | Select MP3H6115A6U when board space, long-term stability, and automotive-grade packaging are required. |
| SP120 | 15–115 kPa range, ±1.0% VFSS accuracy, but requires external ADC and temperature compensation; SOIC-8. | Higher system-level BOM cost and design effort due to discrete signal conditioning. | Select MP3H6115A6U when integrated signal conditioning, ratiometric output, and reduced layout complexity are prioritized. |
Compared with MPX5114A and SP120, the MP3H6115A6U delivers superior long-term stability via fluorosilicone encapsulation, eliminates external compensation circuitry, and supports automated SMT assembly with its SSOP-8 footprint-reducing total cost of ownership in volume production.
Availability
MP3H6115A6U is available at Aetrix Electronics and suitable for aviation altimeters, engine control/manifold absolute pressure (MAP) systems, and industrial process controls requiring stable component supply, consistent calibration traceability, and long-lifecycle availability.
Supply support for MP3H6115A6U 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 embedded processing, sensors, and analog solutions for automotive, industrial, and consumer markets.
The MP3H6115A6U belongs to Freescale's MP3H series of monolithic, signal-conditioned absolute pressure sensors, designed specifically for high-reliability, low-drift applications in engine management, altimetry, and environmental monitoring.
FAQ
What is the pressure reference type of the MP3H6115A6U?
The MP3H6115A6U is an absolute pressure sensor with a sealed vacuum reference cavity. Its diaphragm measures pressure relative to absolute zero (vacuum), not ambient or differential pressure. This makes the MP3H6115A6U suitable for barometric altitude measurement and manifold absolute pressure sensing where true atmospheric or intake pressure is required.
Can the MP3H6115A6U operate with a 5 V supply?
No - the MP3H6115A6U is rated for 2.7–3.3 VDC supply only. Exceeding 3.3 V may cause permanent damage per maximum ratings (Table 2). It is not 5 V tolerant. For 5 V systems, a dedicated 3.3 V LDO regulator must power the MP3H6115A6U, and its ratiometric output will scale accordingly.
What does "DNC" mean for pins 1 and 5–8 on the MP3H6115A6U?
"DNC" stands for "Do Not Connect." Pins 1, 5, 6, 7, and 8 are internal device connections with no external circuit function. Connecting them to ground, supply, or any trace risks calibration shift, output instability, or permanent damage. The MP3H6115A6U datasheet explicitly prohibits routing or soldering to these pins.
Is the MP3H6115A6U compatible with media other than dry air?
The MP3H6115A6U is qualified and characterized using dry air as the pressure medium. Other media - including moisture, oils, fuels, or corrosive gases - may degrade fluorosilicone gel integrity or corrode the silicon diaphragm. Freescale recommends contacting NXP technical support before deploying the MP3H6115A6U with non-dry-air media.
How is temperature compensation implemented in the MP3H6115A6U?
The MP3H6115A6U implements on-chip temperature compensation using thin-film resistor networks and bipolar op-amp circuitry that dynamically corrects offset and sensitivity drift across –40 °C to +125 °C. Compensation is factory-trimmed and requires no external components or software correction - the MP3H6115A6U delivers compensated analog output directly.
MP3H6115A6U Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- 8-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Applications:
- Board Mount
- Pressure Type:
- Absolute
- Operating Pressure:
- 2.18PSI ~ 16.68PSI (15kPa ~ 115kPa)
- Output Type:
- Analog Voltage
- Output:
- 0.12 V ~ 2.8 V
- Accuracy:
- ±1.5%
- Voltage - Supply:
- 2.7V ~ 3.3V
- Port Size:
- Male - 0.13" (3.3mm) Tube
- Port Style:
- Barbless
- Features:
- Temperature Compensated
- Termination Style:
- Gull Wing
- Maximum Pressure:
- 58.02PSI (400kPa)
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SSOP
MP3H6115A6U FAQ
1.How can I place an order for MP3H6115A6U through Aetrix?
Please submit a Request for Quotation (RFQ) for MP3H6115A6U 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 MP3H6115A6U reliable?
The price and inventory of MP3H6115A6U are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MP3H6115A6U is usually 5 days.
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MP3H6115A6U orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MP3H6115A6U 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 MP3H6115A6U?
For technical support, including MP3H6115A6U datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MP3H6115A6U requirements.
6.How does Aetrix verify that MP3H6115A6U is sourced from the original manufacturer or authorized distributors?
All MP3H6115A6U 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 MP3H6115A6U meets industry standards.
7.What is the process for return or replacement of MP3H6115A6U?
All MP3H6115A6U units undergo pre-shipment inspection (PSI). If there is an issue with MP3H6115A6U, 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 MP3H6115A6U part is unused and in its original packaging.
Return procedure for MP3H6115A6U:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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