MPX5100GP - 0-100 kPa Gauge Pressure Sensor | NXP
MPN: MPX5100GP ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $18.5 | $18.50 |
| 10 | $17.2 | $172.00 |
| 100 | $14.85 | $1,485.00 |
| 500 | $13.4 | $6,700.00 |
| 1,000 | $12.03 | $12,030.00 |
MPX5100GP Overview
What is a gauge pressure sensor? A gauge pressure sensor measures pressure referenced to ambient atmospheric pressure, in contrast to absolute or differential sensors that reference a sealed vacuum or a second port. Gauge sensors are the most common type used in atmospheric-pressure-relative measurements because the readout is already corrected for local barometric pressure, simplifying downstream calculations. The MPX5100GP belongs to the integrated pressure sensor family, which combines the MEMS sense element and the analog conditioning ASIC in a single monolithic device.
Key specifications include an operating pressure range of 0 kPa to 100 kPa, a 5 V nominal supply (with 4.75 V to 5.25 V compliance), a full-scale span of approximately 4.5 V, and an accuracy of about 2.5% over the compensated temperature range. The device draws 7 mA to 10 mA from the supply and offers a response time in the low-millisecond range, making it well suited for real-time control loops where low-latency pressure feedback is required.
The MPX5100GP uses NXP's patented single-element piezoresistive transducer combined with bipolar signal-conditioning circuitry on the same die. The on-chip ASIC provides a temperature-compensated, calibrated analog output that is laser-trimmed during production, so the user does not need to perform any external linearization or temperature correction. The integrated signal chain reduces BOM count and PCB area compared to a raw sensor plus external op-amp topology.
Typical applications include HVAC duct pressure monitoring, medical respirators and ventilators, industrial pneumatic controls, altimeters and weather instruments, and engine manifold pressure measurement. The wide 0 to 100 kPa range and integrated signal conditioning make the device particularly attractive in microcontroller-based designs that require an analog front-end with minimal external components.
When designing with the MPX5100GP, ensure a stable 5 V supply with adequate decoupling close to the supply pin. The output is ratiometric to the supply, so noise or drift on VCC translates directly to the output signal; using a low-noise LDO such as the TPS7A4701 for the analog rail improves measurement repeatability.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, including side-by-side comparisons with the MPX5100DP and other MPX-series variants.
Drop-in alternatives for MPX5100GP — 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 MPX5100GP (same form factor and footprint) — differing in Accuracy, Output Type, Output Voltage Range, Package, Supply Current.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
MPX5100AP
✅ Drop-In✓ In Stock
$12.03 / Unit
View Datasheet →MPX5100DP
✅ Drop-In✓ In Stock
$12.03 / Unit
View Datasheet →MPXV5100GC6U
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$11.05 / Unit
View Datasheet →MPX5050GP
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$7.85 / Unit
View Datasheet →XGZP6885A
✅ Drop-In📋 Reference alternative (not in catalog)
MPX5100GP Maximum Ratings & Electrical Characteristics
| Pressure Type | Vented Gauge |
| Pressure Range | 0 kPa to 100 kPa (0 to 14.5 psi) |
| Operating Supply Voltage | 4.75 V to 5.25 V (5 V nominal) |
| Output Voltage Range | 0.2 V to 4.7 V |
| Supply Current | 7 mA to 10 mA typical |
| Full-Scale Span | 4.5 V typical |
| Accuracy | 2.5% over compensated range |
| Port Configuration | Single axial port, 0.19" (4.93 mm) tube |
| Package | 6-SIP Module (through-hole) |
| Technology | Piezoresistive, monolithic silicon |
| On-chip Signal Conditioning | Yes (temperature compensated, calibrated) |
| Operating Temperature | -40 C to +125 C |
| Compensated Temperature Range | 0 C to +85 C |
| Response Time | Low millisecond range |
| RoHS Status | Compliant |
MPX5100GP Pin Configuration
| Pin 1 | VCC — 5 V supply input (4.75 V to 5.25 V) |
| Pin 2 | GND — Ground reference |
| Pin 3 | VOUT — Analog output voltage (0.2 V to 4.7 V ratiometric) |
| Pin 4 | NC — Not connected (per datasheet) |
| Pin 5 | NC — Not connected (per datasheet) |
| Pin 6 | NC — Not connected (per datasheet) |
Typical Applications
MPX5100GP is suitable for 6 applications: HVAC Duct Pressure Monitoring, Medical Ventilator and CPAP, Industrial Pneumatic Control, Barometric Altimeter and Weather Station, Engine Manifold Pressure Measurement, Water Level and Liquid Depth Sensing.
HVAC Duct Pressure Monitoring
The MPX5100GP is well suited for HVAC duct pressure monitoring where accurate gauge readings between 0 kPa and 5 kPa typically matter most for VAV (variable air volume) control loops. The 0 to 100 kPa full-scale range provides substantial headroom for transient spikes during damper closure, while the 0.2 V to 4.7 V output is directly compatible with a 5 V microcontroller A/D input without external signal conditioning. The integrated temperature compensation over 0 C to +85 C keeps calibration stable in duct installations, and the 6-SIP tube port simplifies pneumatic connection with standard 4.93 mm tubing.
Recommended
Medical Ventilator and CPAP
The MPX5100GP's calibrated 0 to 100 kPa gauge range covers the full breathing-circuit pressure envelope of CPAP, BiPAP, and anesthesia ventilator designs. The on-chip signal conditioning eliminates the analog front-end that would otherwise be required to amplify and linearize a raw sensor output, reducing BOM and board area in the patient-circuit module. The 0.2 V to 4.7 V ratiometric output provides a wide dynamic range that captures both ambient (PEEP) pressures and peak inspiratory pressures, while the medical-grade accuracy of 2.5% is sufficient for breath-delivery monitoring.
Recommended
Industrial Pneumatic Control
The MPX5100GP is appropriate for industrial pneumatic control systems monitoring compressor tank pressure, vacuum levels, and actuator line pressure. Its 0 to 100 kPa range aligns with standard low-pressure pneumatic circuits (0 to 1 bar), and the integrated ASIC eliminates the need for an external instrumentation amplifier or temperature-compensation network on the factory floor. The through-hole 6-SIP package is rugged enough for industrial enclosures, and the -40 C to +125 C operating range tolerates unconditioned factory environments.
Recommended
Barometric Altimeter and Weather Station
In barometric altimeter and weather-station designs, the MPX5100GP provides gauge pressure measurements relative to ambient atmosphere through its single vented port. Because the device is vented to the rear of the package, ambient pressure variations are subtracted, giving a clean gauge reading suitable for altitude computation. The 2.5% accuracy is sufficient for hobby and consumer weather instruments, and the 5 V analog output drives a low-cost microcontroller A/D without an external buffer.
Recommended
Engine Manifold Pressure Measurement
The MPX5100GP is sometimes used in non-automotive small-engine applications where 0 to 100 kPa gauge pressure directly maps to manifold vacuum under throttle. The integrated temperature compensation and ratiometric output simplify engine-control-unit design, and the 6-SIP package withstands under-hood thermal stress. Note that AEC-Q100 qualified variants such as the MPX5100GP series are not formally automotive-qualified by NXP; for production automotive ECU designs the MPXH6300A or similar qualified parts are recommended.
Recommended
Water Level and Liquid Depth Sensing
The MPX5100GP can be used in low-depth water-level and liquid-depth sensing applications where 0 to 100 kPa corresponds to approximately 0 to 10 meters of water column. The 6-SIP tube port accepts a standard 4.93 mm hose for sealed connection to a submerged sensing probe, and the integrated signal chain provides a clean 0.2 V to 4.7 V output for direct A/D conversion. The vented-gauge reference compensates for barometric pressure changes, ensuring depth readings remain accurate as weather conditions change.
Recommended
Recommended Products Summary
Engineering reference data for MPX5100GP — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | MPX5100AP | MPX5100DP | MPXV5100GC6U | MPX5050GP | XGZP6885A |
|---|---|---|---|---|---|---|
| Package | 6-SIP Module (through-hole) | 6-SIP Module - same | 6-SIP Module - same | 6-SIP Module - same | 6-SIP Module - same | 6-SIP Module (functional equivalent) - same |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | CFSensor |
| Pressure Type | Vented Gauge | Absolute | Differential | Gauge | Gauge | Gauge |
| Pressure Range | 0 to 100 kPa | 0 to 100 kPa (absolute) | 0 to 100 kPa (differential) | 0 to 100 kPa (gauge) | 0 to 50 kPa | 0 to 100 kPa |
| Output Voltage | 0.2 V to 4.7 V | 0.3 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 (ratiometric) |
| Supply Voltage | 4.75 V to 5.25 V | 4.75 V to 5.25 V | 4.75 V to 5.25 V | 4.75 V to 5.25 V | 4.75 V to 5.25 V | 5 V nominal |
| Number of Ports | 1 (single gauge port) | 1 (absolute, sealed) | 2 (differential) | 1 (gauge) | 1 (gauge) | 1 (gauge) |
| Signal Conditioning | On-chip (calibrated, temp-compensated) | On-chip | On-chip | On-chip | On-chip | On-chip (calibrated) |
Key Differentiators
- Single vented-gauge port for direct atmospheric referencing (vs MPX5100DP)
- Calibrated and temperature-compensated analog output (vs XGZP6885A)
- Wide 0 to 100 kPa range with 4.5 V full-scale span (vs MPX5050GP)
Design Notes
The MPX5100GP requires a clean 5 V supply in the range 4.75 V to 5.25 V. Because the output is ratiometric to VCC, any noise or ripple on the 5 V rail will appear directly on the analog output. Place a 100 nF ceramic bypass capacitor within 5 mm of the VCC pin and a 10 uF tantalum bulk capacitor on the same rail. For best noise performance, power the sensor from a low-dropout linear regulator such as the TPS7A4701 rather than from a switching converter output.
A common design mistake is to assume the MPX5100GP output is referenced to 0 V at 0 kPa gauge pressure. Because the device is vented-gauge, the output is 0.2 V (not 0 V) at ambient atmospheric pressure when powered from 5 V. When interpreting A/D readings, subtract the offset of approximately 0.2 V * (VCC / 5.0 V) before computing the absolute pressure value. The same applies to the differential and absolute variants - always consult the offset and span calibration from the datasheet for the specific part number.
The 6-SIP through-hole package requires standard 0.1" pin pitch holes. Ensure the tube port side of the module has clearance for the 4.93 mm pneumatic tubing fitting - do not place tall components within 8 mm of the port. Keep digital traces and switching converter nodes at least 10 mm from the sensor output trace to minimize capacitive coupling, since the high-impedance analog output is sensitive to nearby digital switching transients.
Compliance Information
RoHS and REACH compliant per NXP product page. Not AEC-Q100 qualified - choose MPXH6300A or similar qualified variants for automotive applications. Halogen-free status not specified in the verified data.