MPXM2102GS - 100kPa Vented Gauge Pressure Sensor | NXP
MPN: MPXM2102GS ✗ End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $8.95 | $8.95 |
| 10 | $7.85 | $78.50 |
| 100 | $6.4 | $640.00 |
| 500 | $5.2 | $2,600.00 |
| 1,000 | $4.35 | $4,350.00 |
MPXM2102GS Overview
A piezoresistive pressure sensor is a solid-state transducer in which strain gauges diffused into a silicon diaphragm change resistance when the diaphragm flexes under pressure; the resulting Wheatstone bridge produces a differential voltage proportional to pressure. Piezoresistive pressure sensors sit in the transducer hierarchy: pressure sensor -> MEMS sensor -> sensor -> discrete semiconductor, and serve as the front-end element in medical, HVAC, and industrial instrumentation.
Key features of the MPXM2102GS include on-chip temperature compensation and calibration via laser-trimmed thin-film resistors, providing span and offset accuracy that minimizes external calibration circuitry. The single monolithic diaphragm with integrated strain gauge network ensures long-term stability and mechanical robustness. Operating pressure range is 0 to 100 kPa (approximately 0 to 14.5 PSI), with sensitivity near 0.4 mV/kPa at 10 V supply. The 5-pin M-PAC (MPAK-4) package with top port simplifies tubing connections in pressure test setups.
Typical applications include barometric and altitude measurement for weather monitoring stations, medical spirometers and non-invasive blood pressure monitors, HVAC differential pressure sensing, and industrial process control loops requiring accurate low-pressure measurement. The vented-gauge reference (port exposed to atmosphere through the package vent) makes the device ideal for applications where the measurement differential versus ambient pressure is the quantity of interest.
When designing with the MPXM2102GS, use an instrumentation amplifier such as INA333 or AD620 to amplify the millivolt-level output to a 0-5 V or 4-20 mA range; provide a stable low-noise 10 V excitation; and add adequate filtering on the supply to reject EMI. Do not apply pressure exceeding the rated 100 kPa range to avoid permanent diaphragm damage.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, with all entries cross-referenced against NXP's product information page and DigiKey parametric data.
Drop-in alternatives for MPXM2102GS — 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 MPXM2102GS (same form factor and footprint) — differing in Operating Pressure Range, Output Type, Package, Operating Temperature, Temperature Compensation.
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No drop-in alternatives available for this product.
Request AlternativesMPXM2102GS Maximum Ratings & Electrical Characteristics
| Pressure Type | Vented Gauge |
| Operating Pressure Range | 0 kPa to 100 kPa (0 to 14.5 PSI) |
| Output Voltage | 0 mV to 40 mV at 10 V excitation |
| Supply Voltage | 10 V typical (max 16 V) |
| Sensitivity | 0.4 mV/kPa nominal |
| Pressure Port | Top-mounted tube (0.12" / 2.97 mm) |
| Port Configuration | Single port, vented gauge |
| Package Type | 5-SMD Module, M-PAC (MPAK-4) |
| Operating Temperature | -40 C to +125 C |
| Technology | Piezoresistive silicon strain gauge |
| Temperature Compensation | On-chip (laser-trimmed) |
| Mounting Type | Surface Mount |
| Diaphragm | Single monolithic silicon |
| Series | MPX2102 |
| RoHS Status | unknown |
MPXM2102GS Pin Configuration
| Pin 1 | Vout+ — Positive bridge output (differential pressure signal, positive side) |
| Pin 2 | GND — Ground reference |
| Pin 3 | VS+ — Supply voltage (10 V typical) |
| Pin 4 | Vout- — Negative bridge output (differential pressure signal, negative side) |
| Pin 5 | NC / Tab — Not connected electrically; tab is mechanical pressure-port ground reference |
Typical Applications
MPXM2102GS is suitable for 6 applications: Barometric Pressure & Altitude Sensing, Medical Spirometry & Respiratory Monitoring, HVAC Differential Pressure Sensing, Industrial Process Control Loops, Portable Altimeter & Wearable Devices, Automotive Manifold & MAP Sensing Reference.
Barometric Pressure & Altitude Sensing
The MPXM2102GS is well suited to barometric pressure and altitude measurement in weather stations, handheld GPS, and drones. Its 0 to 100 kPa vented-gauge range covers the full atmospheric pressure envelope from sea level (~101 kPa) to high altitude (~30 kPa at 9000 m). The on-chip temperature compensation keeps span and offset stable across -40 C to +125 C, which is critical for outdoor environmental monitoring where ambient temperature varies widely. The 0.4 mV/kPa nominal sensitivity at 10 V excitation, after amplification by an INA333 or AD620 instrumentation amplifier, delivers enough resolution for 0.1 kPa altitude-accuracy targets. The vented-gauge topology references against ambient through the top port, which is essential because absolute atmospheric pressure is the quantity of interest in weather and altitude applications.
Recommended
Medical Spirometry & Respiratory Monitoring
The MPXM2102GS fits medical spirometry and respiratory flow-pressure measurement where differential pressure is low and accuracy matters. The 0 to 100 kPa range covers typical breathing-circuit pressures, and the piezoresistive silicon diaphragm is small, lightweight, and inexpensive enough for single-use or low-cost reusable medical instruments. The on-chip temperature compensation reduces drift during warm-up and across body-temperature operating conditions. The vented-gauge configuration simplifies the medical circuit by referencing the patient-side ambient directly through the top port. An external instrumentation amplifier converts the 40 mV full-scale output to a 0-5 V signal for the ADC; the same signal chain supports both inspiratory and expiratory pressure monitoring.
Recommended
HVAC Differential Pressure Sensing
The MPXM2102GS is a strong fit for HVAC duct and filter differential pressure measurement in building automation systems. The 100 kPa range easily covers typical duct static pressures of 0-2.5 kPa with substantial headroom for over-pressure events. Its on-chip temperature compensation across -40 C to +125 C tolerates rooftop and mechanical-room environments where ambient swings are large. The vented-gauge topology allows mounting directly on a duct wall with the top port exposed to the airstream, eliminating external reference plumbing. The 5-pin M-PAC surface-mount package supports automated PCB assembly, reducing manufacturing cost for high-volume HVAC controller production.
Recommended
Industrial Process Control Loops
The MPXM2102GS supports industrial process control loops that monitor low-pressure fluid or gas lines, such as cleanroom positive-pressure maintenance, gas analyzer sample handling, and low-head pump monitoring. The piezoresistive silicon technology provides fast response time and mechanical robustness suited to industrial environments. Its single monolithic diaphragm with laser-trimmed thin-film resistor network delivers repeatable span and offset calibration part-to-part, which simplifies system calibration procedures. The M-PAC package with top tube port allows direct insertion into 1/8 inch pneumatic tubing without adapters. Combined with an industrial-grade instrumentation amplifier and isolated 4-20 mA transmitter, the MPXM2102GS forms a complete pressure-monitoring channel.
Recommended
Portable Altimeter & Wearable Devices
The MPXM2102GS is suitable for portable altimeters, fitness wearables, and handheld GPS units that report elevation gain to outdoor users. The 0 to 100 kPa range covers all realistic altitudes, and the small M-PAC surface-mount package fits thin wearable enclosures. The piezoresistive silicon sensor consumes power only during measurement and supports duty-cycled operation to extend battery life, which is critical for wearables that may run for weeks on a single coin cell. The on-chip temperature compensation maintains accuracy as the device moves between sunny and shaded conditions during hiking or climbing. The vented-gauge topology through the top port means the device reads atmospheric pressure directly without external sealing considerations.
Recommended
Automotive Manifold & MAP Sensing Reference
Although the MPXM2102GS is not AEC-Q100 qualified, it serves well as a low-cost development reference for manifold absolute pressure (MAP) sensor design in non-production automotive applications and engineering test fixtures. The 100 kPa range covers atmospheric and light-boost manifold pressures; the on-chip temperature compensation handles under-hood thermal cycling during prototype validation. The piezoresistive silicon topology matches the operating principle used in production MAP sensors, allowing engineers to develop and validate signal-chain and calibration algorithms before porting to qualified parts. The 5-pin M-PAC package with top port is similar in form factor to many production MAP sensor packages, easing PCB layout reuse between prototype and final designs.
Recommended
Recommended Products Summary
Engineering reference data for MPXM2102GS — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | MPXM2102AST1 | MPXM2102GST1 | MPXM2202GS | MPXM2202GST1 | MPXM2202AS |
|---|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | MPAK-4 (5-SMD Module) | MPAK-4 (5-SMD Module) - same | MPAK-4 (5-SMD Module) - same | MPAK-4 (5-SMD Module) - same | MPAK-4 (5-SMD Module) - same | MPAK-4 (5-SMD Module) - same |
| Pressure Range | 0 to 100 kPa (14.5 PSI) | 0 to 100 kPa (14.5 PSI) | 0 to 100 kPa (14.5 PSI) | 0 to 200 kPa (29 PSI) | 0 to 200 kPa (29 PSI) | 0 to 200 kPa (29 PSI) |
| Output Voltage @ 10V | 0 to 40 mV | 0 to 40 mV | 0 to 40 mV | 0 to 40 mV (over 200 kPa) | 0 to 40 mV (over 200 kPa) | 0 to 40 mV (over 200 kPa) |
| Technology | Piezoresistive silicon | Piezoresistive silicon | Piezoresistive silicon | Piezoresistive silicon | Piezoresistive silicon | Piezoresistive silicon |
| Temperature Compensation | On-chip (laser-trimmed) | On-chip (laser-trimmed) | On-chip (laser-trimmed) | On-chip (laser-trimmed) | On-chip (laser-trimmed) | On-chip (laser-trimmed) |
| Operating Temperature | -40 C to +125 C | -40 C to +125 C | -40 C to +125 C | -40 C to +125 C | -40 C to +125 C | -40 C to +125 C |
| Lifecycle Status | Obsolete (EOL) | Obsolete (EOL) | Obsolete (EOL) | Obsolete (EOL) | Obsolete (EOL) | Obsolete (EOL) |
Key Differentiators
- On-chip temperature compensation with laser-trimmed calibration (vs Honeywell 26PC series pressure sensors)
- M-PAC (MPAK-4) surface-mount package with top tube port (vs Through-hole MPX series pressure sensors)
- Wide operating temperature range -40 C to +125 C (vs Industrial pressure sensors with 0 to +70 C rating)
Design Notes
The MPXM2102GS output is a differential millivolt-level signal (0-40 mV at 10 V excitation) that is highly susceptible to common-mode noise and ground loops. Use an instrumentation amplifier such as INA128, AD620, or INA333 with high common-mode rejection ratio (CMRR > 80 dB at 60 Hz) located within 10 cm of the sensor to capture the signal before it is corrupted. Twisted-pair wiring from the sensor to the amplifier further reduces EMI pickup; a driven shield or guard trace around the pair rejects capacitive coupling from adjacent high-voltage lines.
Provide a low-noise, well-regulated 10 V excitation supply to the MPXM2102GS. The sensor output is ratiometric to the excitation voltage: a 1% ripple on VS translates directly to a 1% error in the pressure reading. A linear regulator such as LM317 or a low-ripple DC-DC followed by an LC pi-filter is recommended; avoid feeding the sensor from the same switching regulator that powers digital logic. Decouple VS with a 100 nF ceramic capacitor placed within 5 mm of the sensor supply pin.
Do not apply pressure exceeding the rated 100 kPa range to the MPXM2102GS; the silicon diaphragm can crack or permanently deform, causing span and offset errors that calibration cannot recover. Do not block the vented-gauge reference port - it must remain open to ambient atmosphere or the device will read incorrect pressure. Do not use the sensor in condensing or corrosive media; the top tube port has no ingress protection and moisture ingress will damage the strain gauge network.
Mount the MPXM2102GS with the top tube port unobstructed and accessible to the pressure source. Leave at least 5 mm of clearance around the port for tubing connections; avoid placing tall components nearby that would interfere with pneumatic fittings. Route the analog signal traces as a differential pair with ground plane underneath to maintain signal integrity, and place the instrumentation amplifier within 10 cm of the sensor to minimize trace length and noise pickup.
Compliance Information
Lifecycle is End-of-Life per NXP product information page as of 2026-10-15. RoHS, REACH, lead-free, and halogen-free status not explicitly stated in retrieved web data and marked 'unknown'. Part is not AEC-Q100 qualified; not suitable for production automotive safety-critical applications.
