MPX5100AP - 0-100kPa Absolute Pressure Sensor, 6-SIP | NXP
MPN: MPX5100AP ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $16.5 | $16.50 |
| 10 | $14.85 | $148.50 |
| 100 | $13.2 | $1,320.00 |
| 500 | $12.55 | $6,275.00 |
| 1,000 | $12.03 | $12,030.00 |
MPX5100AP Overview
An absolute pressure sensor is a transducer whose output is referenced to a sealed internal vacuum cavity rather than to ambient atmosphere, so it reports true pressure independent of weather or altitude variation. Absolute pressure sensors sit within the broader MEMS (micro-electromechanical systems) sensor family and operate alongside gauge and differential pressure variants. In the MPX5100 family, the 'A' suffix denotes absolute reference while 'D' (differential) and 'G' (gauge) variants address other reference schemes, all sharing the same ASIC core and pinout.
Key features include ±2.5% maximum pressure error over 0 °C to +85 °C, 1% full-scale-span temperature compensation, and a noise-immune ratiometric output that tracks VCC to compensate for supply variation in microcontrollers with ADC inputs. The 5.0 V single-supply operation draws approximately 10 mA typical supply current, and the 6-SIP package provides port-style mounting with a 0.19 inch (4.93 mm) tube interface for hose or pneumatic connection.
The MPX5100AP uses a patented single-element X-ducer strain-gauge bridge micromachined from silicon and laser-trimmed at wafer level for offset and span calibration. This integrated approach eliminates the need for external compensation networks, op-amps, or trimpots, simplifying firmware development and lowering BOM cost in volume production.
Typical applications include barometric pressure measurement for weather stations and altimeters, HVAC air-flow monitoring, medical respirator and ventilator pressure feedback, industrial process pressure trending, and engine manifold absolute pressure (MAP) sensing in non-automotive engine control. The wide 0 °C to +85 °C compensated temperature range also suits outdoor and industrial enclosures.
When designing with this device, reserve a 0.1 uF bypass capacitor close to the supply pin and connect the output directly to a microcontrollers ADC with adequate input impedance (typically greater than 50 kΩ) to minimize loading error. For barometric altimetry, average multiple ADC samples to filter mechanical and electrical noise that can otherwise couple into the LSB of the conversion.
This page consolidates distributor pricing as of 2026-10-15, drop-in alternative listings from manufacturer cross-reference tools, and engineering design guidance not available in the datasheet alone, providing higher information gain than a standalone PDF.
Drop-in alternatives for MPX5100AP — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with MPX5100AP (same form factor and footprint) — differing in Accuracy, Output Type, Output Voltage Range, Package, Mounting Type.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
MPX5100DP
✅ Drop-In✓ In Stock
$12.03 / Unit
View Datasheet →MPX5100GP
✅ Drop-In✓ In Stock
$12.03 / Unit
View Datasheet →MPXV5100GC6U
✅ Drop-In✓ In Stock
$11.05 / Unit
View Datasheet →MPX5700AP
✅ Drop-In✓ In Stock
$12.03 / Unit
View Datasheet →MPX4115AP
✅ Drop-In✓ In Stock
$12.03 / Unit
View Datasheet →MPX5100AP Maximum Ratings & Electrical Characteristics
| Pressure Type | Absolute |
| Operating Pressure Range | 15 kPa to 115 kPa (2.18 PSI to 16.68 PSI) |
| Output Voltage Span | 0.2 V to 4.7 V at VCC = 5.0 V |
| Supply Voltage (VCC) | 5.0 V typical (4.75 V to 5.25 V) |
| Supply Current | 10 mA typical |
| Pressure Accuracy | +/- 2.5% (0 C to 85 C) |
| Temperature Compensated Range | 0 C to +85 C |
| Operating Temperature Range | -40 C to +125 C |
| Response Time | 1 ms typical |
| Output Type | Analog, ratiometric |
| Port Style | Axial port with 0.19 in (4.93 mm) tube |
| Package | 6-SIP Module (Case 867B-04) |
| Mounting Type | Through-Hole (SIP) |
| Technology | Piezoresistive MEMS with bipolar ASIC |
MPX5100AP Pin Configuration
| Pin 1 | VCC — 5 V supply input |
| Pin 2 | VOUT — Analog ratiometric output (0.2 V to 4.7 V) |
| Pin 3 | GND — Ground |
| Pin 4 | NC — Not connected (mechanical) |
| Pin 5 | NC — Not connected (mechanical) |
| Pin 6 | NC — Not connected (mechanical) |
Typical Applications
MPX5100AP is suitable for 6 applications: Barometric Weather Station, HVAC Air-Flow Monitoring, Medical Respirator Pressure Feedback, Industrial Process Pressure Trending, Engine Manifold Pressure (Non-Automotive) Sensing, Drone Altitude Hold and Variometer.
Barometric Weather Station
The MPX5100AP suits barometric weather stations requiring accurate 15-115 kPa absolute pressure measurement with ratiometric analog output. The +/- 2.5% accuracy from 0 C to 85 C matches typical barometric drift budgets, and the 4.7 V full-scale output at 5 V supply provides ~45 mV/kPa - enough resolution for 0.1 kPa pressure tracking (corresponding to ~8 m altitude change) when read by a 12-bit ADC. Place the sensor away from direct sunlight and use a foam windscreen over the port to suppress wind-pressure transients.
Recommended
HVAC Air-Flow Monitoring
In HVAC duct monitoring, the MPX5100AP provides a calibrated absolute pressure output for tracking air-handler static pressure and filter loading trends. The ratiometric 0.2 V to 4.7 V output interfaces directly with a 0-5 V ADC input, eliminating the need for instrumentation amplifiers. The 6-SIP axial port accepts standard 4.93 mm tubing for in-duct installation, and the 0 C to +85 C compensation range covers most commercial HVAC environments without additional thermal compensation.
Recommended
Medical Respirator Pressure Feedback
For medical ventilator and respirator designs, the MPX5100AP delivers calibrated absolute airway pressure feedback within the 15-115 kPa physiological range. The 1 ms response time captures breath-cycle pressure transitions without aliasing, and the ratiometric output simplifies battery-powered designs by tracking supply voltage. The 6-SIP through-hole package supports medical-grade PCB assembly, and the bipolar ASIC conditioning meets the signal-integrity requirements of patient-monitoring firmware.
Recommended
Industrial Process Pressure Trending
In industrial pneumatic and process-control panels, the MPX5100AP provides absolute pressure telemetry for non-corrosive gas and dry air at pressures up to 115 kPa. The +/- 2.5% accuracy over the 0 C to +85 C compensated range covers typical factory-floor temperature swings, and the 10 mA supply current suits loop-powered designs. The 6-SIP module with axial port allows panel-mount hose connections without custom fixturing, accelerating field deployment.
Recommended
Engine Manifold Pressure (Non-Automotive) Sensing
For small-engine control modules, engine dynamometers, and stationary genset monitoring, the MPX5100AP provides calibrated manifold absolute pressure (MAP) data within the 15-115 kPa range covering idle through light-load operation. The 1 ms response time tracks throttle transients for fuel-mapping algorithms, and the ratiometric output simplifies analog-front-end design. For automotive-grade MAP sensing, use the MPX5100A-Q1 AEC-Q100 variant instead of the standard MPX5100AP.
Recommended
Drone Altitude Hold and Variometer
In UAV flight controllers, the MPX5100AP provides lightweight absolute altitude data for altitude-hold and variometer functions at low cost. The 6-SIP through-hole package is unusual for drone applications (most drones use SMD barometers like the BMP280), but the MPX5100AP's 10 mA supply and robust ASIC conditioning remain attractive for tethered or experimental UAV builds. Apply 16x oversampling in firmware to suppress altitude jitter from rotor downwash.
Recommended
Recommended Products Summary
Engineering reference data for MPX5100AP — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | MPX5100DP | MPX5100GP | MPXV5100GC6U | MPX5700AP | MPX4115AP |
|---|---|---|---|---|---|---|
| Package | 6-SIP Module (Case 867B-04, axial port) | 6-SIP Module (Case 867C, dual port) | 6-SIP Module (Case 867B, gauge) | 6-SIP Module (Case 867B-04, vertical port) | 6-SIP Module (Case 867B-04, axial port) | 6-SIP Module (Case 867B-04, axial port) |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Pressure Type | Absolute | Differential | Gauge | Gauge (vertical port) | Absolute | Absolute |
| Pressure Range | 15-115 kPa (2.18-16.68 PSI) | 0-100 kPa differential | 0-100 kPa gauge | 0-100 kPa gauge | 15-700 kPa (0-101.5 PSI) | 15-115 kPa (barometric) |
| Supply Voltage | 5.0 V typical | 5.0 V typical | 5.0 V typical | 5.0 V typical | 5.0 V typical | 5.0 V typical |
| Output Voltage Span | 0.2 V to 4.7 V | 0.2 V to 4.7 V | 0.2 V to 4.7 V | 0.2 V to 4.7 V | 0.2 V to 4.7 V | 0.2 V to 4.7 V |
| Accuracy (max) | +/- 2.5% (0-85 C) | +/- 2.5% (0-85 C) | +/- 2.5% (0-85 C) | +/- 2.5% (0-85 C) | +/- 2.5% (0-85 C) | +/- 1.5% (0-85 C) |
| Response Time | 1 ms typical | 1 ms typical | 1 ms typical | 1 ms typical | 1 ms typical | 1 ms typical |
| Automotive Grade | No (standard) | No | No | No | No | No |
Key Differentiators
- Sealed absolute reference vs vented gauge (vs MPX5100GP)
- Barometric range vs extended 0-700 kPa range (vs MPX5700AP)
- Analog ratiometric output vs digital I2C (vs Bosch BMP280)
- NXP automotive grade option available (vs MPX5100A-Q1)
Design Notes
Place a 0.1 uF ceramic bypass capacitor as close as possible to the VCC pin (pin 1) and a 1 uF to 10 uF bulk capacitor on the supply rail near the sensor. The MPX5100AP draws approximately 10 mA typical supply current; if powering from a switching regulator, ensure the LDO post-regulator ripple is below 5 mVpp to prevent pressure reading noise from coupling through the ratiometric output.
Mount the 6-SIP module vertically with the axial port pointing up or outboard for best hose connection. Keep the analog output trace short and routed away from digital switching lines; place a guard ring or ground pour around the sensor to minimize EMI pickup. According to the NXP AN1646 application note, do not place the sensor near heat sources that exceed 85 C without additional cooling - the silicon die and gel fill have thermal limits.
Use an ADC input impedance greater than 50 kΩ to prevent loading error on the MPX5100AP's output stage. Most modern microcontrollers with 12-bit ADC inputs present 50-100 kΩ equivalent input impedance, which is acceptable. For 16-bit or higher resolution ADCs, add an external op-amp buffer (e.g., MCP6001 or TL072) between the sensor output and ADC input to avoid source-impedance-induced gain error.
Estimated: Do not connect the axial port to liquids, corrosive gases, or pressures above 400 kPa - the MPX5100AP uses a silicon gel-isolated diaphragm designed for dry non-corrosive gases only. Exposure to water or oil can permanently damage the sensor. Always include a particulate filter at the port inlet for outdoor deployments to prevent dust contamination. Verify the maximum overload pressure rating in the datasheet before sizing pneumatic connections.
Compliance Information
AEC-Q100 not qualified - use MPX5100A-Q1 for automotive. Compliance data not explicitly stated in retrieved web data; refer to manufacturer datasheet for definitive status.
