MPX2102GVP - 100 kPa Vented Gauge Pressure Sensor | NXP
MPN: MPX2102GVP ✗ End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $17.5 | $17.50 |
| 10 | $15.75 | $157.50 |
| 100 | $13.2 | $1,320.00 |
| 500 | $11.4 | $5,700.00 |
| 1,000 | $10.15 | $10,150.00 |
MPX2102GVP Overview
A pressure sensor is a transducer that converts an applied pneumatic or hydraulic force into a proportional electrical signal, serving as the sensing layer between a physical medium and an electronic measurement system. Within the broader instrumentation hierarchy, the MPX2102GVP belongs to the family of piezoresistive (strain-gauge) sensors, then to MEMS silicon sensors, and finally to signal-conditioning transducers. The piezoresistive principle uses diffused silicon strain gauges whose resistance changes with diaphragm deflection, providing higher sensitivity and smaller form factors than legacy metal-foil gauges.
The MPX2102 series integrates a monolithic silicon diaphragm with laser-trimmed thin-film resistors, providing a temperature-compensated output across 0 C to 85 C. Sensitivity is typically 0.4 mV/kPa when excited at the recommended 10 V supply, and the device exhibits strong linearity across its full-scale range. The 4-SIP module packages the die with a vertical inlet port that simplifies tube fitting in medical and industrial manifolds.
Key features include a maximum pressure rating well above the operating span to survive pressure spikes, EMI/RFI insensitivity inherent to differential Wheatstone-bridge sensing, and a robust molded package suitable for non-corrosive gas media. The bridge impedance is nominally high (approximately 400 ohm to 500 ohm), so a low-noise instrumentation amplifier is recommended to buffer and amplify the millivolt-level signal.
Typical applications include respiratory and CPAP airflow monitoring, barometric compensation for weather stations and altimeters, HVAC duct pressure measurement, pneumatic leak detection, and industrial process control loops where a low-pressure differential must be digitized. The vented gauge reference (side opposite the inlet) lets the sensor output correct for atmospheric pressure changes, unlike sealed gauge devices.
When designing with this part, use a low-offset, low-drift op-amp such as a zero-drift chopper amplifier to preserve the small-signal accuracy; lead-length-induced errors and self-heating should also be minimized. A stable 10 V excitation rail is required to take full advantage of the calibrated transfer function.
This page synthesizes distributor pricing, same-family drop-in alternatives, and practical signal-chain design notes not found in the manufacturer datasheet alone.
Drop-in alternatives for MPX2102GVP — 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 MPX2102GVP (same form factor and footprint) — differing in Output Type, Operating Pressure Range, Pressure Type, Mounting Type, Linearity.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
MPX2102DP
✅ Drop-In✓ In Stock
$9.85 / Unit
View Datasheet →MPX2102ASX
✅ Drop-In✓ In Stock
$10.95 / Unit
View Datasheet →MPX2100AP
✅ Drop-In✓ In Stock
$11.85 / Unit
View Datasheet →MPX2100GVP
✅ Drop-In✓ In Stock
$16.2 / Unit
View Datasheet →MPX2102GVP Maximum Ratings & Electrical Characteristics
| Operating Pressure Range | 0 to 14.5 PSI (0 to 100 kPa) |
| Pressure Type | Vented Gauge |
| Output Type | Analog Wheatstone bridge, 0 mV to 40 mV at 10 V |
| Supply Voltage | 10 V typical (10 V max) |
| Sensitivity | 0.4 mV/kPa nominal (40 mV at 100 kPa, 10 V supply) |
| Linearity | +/-0.25% full scale typical |
| Operating Temperature | 0 C to +85 C |
| Storage Temperature | -40 C to +125 C |
| Compensated Temperature | 0 C to +85 C |
| Package | 4-SIP Top Port Module |
| Port Size | Male 0.19 inch (4.93 mm) Tube |
| Input / Reference Side | Vented (atmospheric reference) |
| Termination Style | Through-Hole PCB (4-SIP pins) |
| Media Compatibility | Non-corrosive dry gases |
| MSL Level | 1 (Unlimited) |
| REACH Status | REACH Unaffected |
| ECCN | EAR99 |
| HTSUS | 8541.59.0080 |
MPX2102GVP Pin Configuration
| Pin 1 | VCC — Bridge excitation supply (typical 10 V) |
| Pin 2 | OUT+ — Bridge positive differential output |
| Pin 3 | GND — Bridge ground |
| Pin 4 | OUT- — Bridge negative differential output / reference |
Typical Applications
MPX2102GVP is suitable for 6 applications: Medical Respiratory & CPAP Airflow Monitoring, Barometric Compensation in Altimeters & Weather Stations, HVAC Duct Pressure Monitoring, Pneumatic Leak Detection in Industrial Systems, Industrial Process Control Pressure Loops, Portable Digital Pressure Gauges.
Medical Respiratory & CPAP Airflow Monitoring
The MPX2102GVP is well-suited to medical respiratory and CPAP airflow monitoring because its 100 kPa vented-gauge span covers typical breathing-circuit pressures while its 0.4 mV/kPa sensitivity produces a reproducible signal that downstream instrumentation amplifiers can digitize. Placed inline with the patient tubing on a PCB manifold, it reports mask pressure to the controller with millivolt-level resolution. Unlike bulkier airflow meters, the monolithic 4-SIP top-port module simplifies tubing geometry and sterility workflows in sleep-therapy equipment.
Recommended
Barometric Compensation in Altimeters & Weather Stations
The MPX2102GVP measures ambient barometric pressure in altimeter and weather-station designs by exposing its vented reference side to atmosphere and its inlet port to the local ambient. With 100 kPa full scale and calibrated temperature compensation across 0 C to 85 C, the sensor delivers a stable analog front end for weather-logging MCUs. Engineers pair it with a 24-bit sigma-delta ADC so that the 0 to 40 mV signal chain preserves millibar-level resolution across the barometric range.
Recommended
HVAC Duct Pressure Monitoring
Industrial HVAC pressure monitoring uses the MPX2102GVP on the low-pressure side of duct networks where static and differential readings stay under 100 kPa. The 4-SIP top-port inlet lets the sensor sit on a control-board edge with a tube fitting directly to the duct. Because the device consumes only a few mA at 10 V, it integrates cleanly into energy-efficient damper and fan-control loops. The vented-gauge reference removes barometric drift from long-term trend monitoring.
Recommended
Pneumatic Leak Detection in Industrial Systems
For pneumatic leak detection in industrial systems, the MPX2102GVP provides the millivolt-per-kilopascal sensitivity needed to spot small pressure drops in air lines. Installed at test manifolds, the sensor detects sub-kPa changes when a downstream line is sealed and pressurized, flagging leaks as the readout decays below threshold. Its monolithic silicon piezoresistive die responds fast enough for inline test equipment, and the small 4-SIP package allows multiple test points on a single fixture.
Recommended
Industrial Process Control Pressure Loops
Within industrial process-control pressure loops, the MPX2102GVP serves as the front-end transducer for low-pressure gas regulation, where it linearizes to within +/-0.25% full scale across 0 C to 85 C. The 0 to 40 mV output is fed into a 4-20 mA current-loop transmitter built around an XTR105 or AD693, converting the sensor signal into industrial standard 4-20 mA. Because the vented reference compensates for ambient barometric shifts, the loop output reflects true process pressure at the inlet port.
Recommended
Portable Digital Pressure Gauges
The MPX2102GVP is widely used in portable digital pressure gauges for HVAC and field-service applications because its 4-SIP top-port package fits inside a handheld enclosure alongside a battery-powered microcontroller and small LCD. The 0.4 mV/kPa sensitivity enables sub-Pascal resolution when paired with a 24-bit ADC and proper gain. Because the sensor consumes only the bridge current at 10 V excitation, battery life is dominated by the display and wireless modules rather than the transducer itself.
Recommended
Recommended Products Summary
Engineering reference data for MPX2102GVP — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | MPX2102DP | MPX2102ASX | MPX2100AP | MPX2100GVP |
|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 4-SIP Top Port | 4-SIP Dual Port | 4-SIP Axial | 4-SIP Axial Port | 4-SIP Top Port - same |
| Pressure Type | Vented Gauge | Differential / Gauge | Absolute or Gauge (variant) | Absolute / Gauge (variant) | Vented Gauge |
| Operating Pressure Range | 0 to 100 kPa (0 to 14.5 PSI) | 0 to 100 kPa - same | 0 to 100 kPa - same | 0 to 200 kPa (0 to 29 PSI) | 0 to 200 kPa (0 to 29 PSI) |
| Output Span (at 10 V) | 0 to 40 mV | 0 to 40 mV - same | 0 to 40 mV - same | 0 to 40 mV (different FS pressure) | 0 to 40 mV (different FS pressure) |
| Sensitivity | 0.4 mV/kPa | 0.4 mV/kPa - same | 0.4 mV/kPa - same | 0.2 mV/kPa | 0.2 mV/kPa |
| Operating Temperature | 0 C to +85 C | 0 C to +85 C - same | 0 C to +85 C - same | 0 C to +85 C - same | 0 C to +85 C - same |
| Lifecycle Status | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete |
| Excitation Voltage | 10 V typical | 10 V typical | 10 V typical | 10 V typical | 10 V typical |
Key Differentiators
- Top-port inlet geometry (vs MPX2102DP)
- 100 kPa full-scale for high-sensitivity low-pressure (vs MPX2100GVP)
- Vented gauge reference for barometric compensation (vs MPX2102ASX)
Design Notes
The MPX2102GVP outputs only 0 mV to 40 mV at full scale, so the signal must be amplified with a low-offset, low-drift instrumentation amplifier such as the INA128 or AD8421. Using a general-purpose op-amp (LM358) without chopper stabilization introduces offset errors larger than the sensor signal itself. Use shielded twisted pairs from the 4-SIP pins to the amplifier, and keep the excitation rails as low-noise as the amplification stage.
Self-heating at the bridge can drift the output by tens of millivolts if the device is excited above 10 V or operated in still air without thermal relief. Estimated: at 10 V excitation, the bridge draws approximately 6 mA, dissipating 60 mW in the die; this shifts zero by typically 1 mV to 3 mV from cold-start to steady-state. Allow a 1-second warm-up before digitizing, or use a chopper-stabilized amplifier that AC-couples the offset.
Mount the 4-SIP module upright with the tube inlet vertical to avoid kinking the pneumatic path. Per the NXP datasheet, the inlet is a 0.19 inch (4.93 mm) tube, so plan manifold clearance and provide at least 5 mm of free space above the package. Keep noisy digital traces away from the bridge output traces to prevent rectification in the amplifier input stage.
Do not apply liquids to the inlet; the gel isolation cap is designed for dry gases only. Exceeding 100 kPa will permanently damage or fatigue the diaphragm - add a mechanical snubber or upstream regulator if pressure spikes are possible. Do not bias the bridge below ground or above 10 V; the datasheet absolute maximum ratings are 0 V to 12 V on VCC. Avoid orienting the package with the tube inlet downward - fluid pooling can breach the gel seal.
Compliance Information
REACH Unaffected per DigiKey listing. RoHS and lead-free status not explicitly stated in verified distributor data; set to unknown. AEC-Q100 not applicable - this is a sensor, not an automotive-qualified IC. HTSUS 8541.59.0080 / ECCN EAR99 indicates no export-control restrictions.
