MPXM2202GST1 - 200kPa Vented Gauge Pressure Sensor | STMicroelectronics
부품 번호: MPXM2202GST1 ✓ 활성| 수량 | 단가 | 합계 |
|---|---|---|
| 1 | $13.5 | $13.50 |
| 10 | $11.85 | $118.50 |
| 100 | $10.4 | $1,040.00 |
| 500 | $9.25 | $4,625.00 |
| 1,000 | $8.1 | $8,100.00 |
MPXM2202GST1 개요
A piezoresistive pressure sensor is a MEMS device in which a thin silicon diaphragm with embedded strain gauges changes resistance when pressure is applied; an external circuit or ADC then converts the millivolt-level output into a pressure reading. Pressure sensors sit in the sensor hierarchy under transducers, and board-mount variants like the MPXM2202GST1 belong to the wired medical / industrial / HVAC equipment ecosystem where gas or fluid pressure must be measured directly on a printed circuit board.
Key features include 0 mV to 40 mV full-scale span at 10 V supply, ±0.25% linearity over the 0–200 kPa range, on-chip temperature compensation from 0 °C to +85 °C, and a vented-gauge reference that compensates for ambient barometric pressure variation. The M-PAK package includes a barbed 0.12" (2.97 mm) tube port for pneumatic connection and five surface-mount leads for PCB reflow soldering.
Internally, the device is a monolithic silicon die with a piezoresistive Wheatstone bridge, laser-trimmed span and offset for tight device-to-device matching. The vented-gauge construction means the back side of the diaphragm is exposed to atmosphere through the port, allowing absolute barometric correction in single-sided applications without a secondary reference sensor.
Typical applications include medical ventilators and respiratory monitors, HVAC air-flow meters, industrial process controls, altimeters and barometers, and portable gas-flow instrumentation. Designers choose this part when they need a proven, board-mount pressure-sensing building block with analog output for easy interface to instrumentation-grade ADCs or MCU analog front ends.
Design tip: drive the sensor from a low-noise, well-regulated 10 V excitation supply and use an instrumentation amplifier with sufficient gain (typically 100×–250×) to bring the 40 mV span to a 0–4 V or 0–5 V ADC input range. Decouple VCC close to the pins with a 0.1 µF ceramic capacitor to suppress switching-noise coupling.
This page synthesizes distributor pricing from DigiKey and Mouser, verified drop-in alternatives within the MPX2202/MPX2102 family, and practical design notes not aggregated on any single manufacturer page, enabling faster part selection for new designs.
드롭인 대체품: MPXM2202GST1 — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
이 시리즈의 변형
다음과 드롭인 호환되는 동일 시리즈 모델: MPXM2202GST1 (동일 폼 팩터 및 풋프린트) — 차이점: Operating Pressure Range, Temperature Compensation, Mounting Type, Pressure Type, Operating Temperature.
빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:
MPXM2202GS
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
MPXM2202GST1
✅ 드롭인✓ 재고 있음
$8.1 / 개
데이터시트 보기 →MPXM2102GS
✅ 드롭인✓ 재고 있음
$4.35 / 개
데이터시트 보기 →MPXM2202AS
✅ 드롭인✓ 재고 있음
$5.86 / 개
데이터시트 보기 →MPXM2202GST1 최대 정격 & 전기적 특성
| Pressure Type | Vented Gauge |
| Operating Pressure Range | 0 kPa to 200 kPa (0 psi to 29.01 psi) |
| 출력 유형 | Analog Wheatstone bridge (millivolt differential) |
| Full-Scale Span | 0 mV to 40 mV at 10 V excitation |
| Linearity | ±0.25% (P2 grade) |
| 공급 전압 | 10 V typical (sensor excitation) |
| 동작 온도 | 0 °C to +85 °C (compensated range) |
| Temperature Compensation | On-chip, 0 °C to +85 °C |
| Port Type | Male barbed tube, top-side, 0.12" (2.97 mm) |
| 패키지 | 5-SMD M-PAK module, top port |
| 실장 유형 | Surface Mount (SMD Gull-Wing leads) |
| RoHS 상태 | Compliant |
| Technology | Piezoresistive silicon MEMS, single-element |
MPXM2202GST1 핀 구성
| 핀 1 | Vcc — Bridge excitation, +10 V nominal |
| 핀 2 | GND — Bridge ground / excitation return |
| 핀 3 | Vout+ — Differential output positive |
| 핀 4 | Vout- — Differential output negative |
| 핀 5 | NC — Not connected (per datasheet M-PAK 5-pin map) |
일반적인 애플리케이션
MPXM2202GST1 적합 용도: 6 애플리케이션s: Medical Respiratory Equipment, HVAC Airflow and Duct Pressure Monitoring, Industrial Process Control, Altimeters and Barometric Instruments, Portable Gas-Flow Instrumentation, Appliance Water-Level Sensing.
Medical Respiratory Equipment
The MPXM2202GST1's 0–200 kPa range, ±0.25% linearity, and vented-gauge reference make it a candidate for pressure-sensing channels in CPAP machines, ventilators, and oxygen concentrators. The 40 mV full-scale span interfaces cleanly with instrumentation amplifiers; the top-side tube port simplifies pneumatic connection to flow paths, and on-chip 0–85 °C compensation removes the need for an external thermistor in commercial/clinical instruments. Final IEC 60601 medical certification is the responsibility of the OEM at the system level. Compared to a discrete pressure-transducer module, the M-PAK form factor saves PCB area.
추천
HVAC Airflow and Duct Pressure Monitoring
In HVAC duct-pressure and VAV box monitoring, the MPXM2202GST1 measures air-pressure drops across fans, filters, and dampers. The vented-gauge port automatically tracks barometric changes, so altitude or weather-related pressure shifts do not bias the reading, and the 0.12" barbed port accepts standard pneumatic tubing. With a 10 V excitation and a single-stage instrumentation amp at 100× gain, the 40 mV span resolves to ~4 V full scale for an MCU ADC - sufficient for 10-bit duct-pressure resolution. The M-PAK surface-mount package supports automated assembly on filter-monitoring PCBs.
추천
Industrial Process Control
Process-control applications such as gas-flow metering, liquid-level sensing via hydrostatic head, and cleanroom pressure-differential alarms benefit from the MPXM2202GST1's calibrated millivolt output. Designers can pair the sensor with a 4–20 mA current-loop transmitter to retrofit industrial equipment without disturbing existing wiring. The on-chip compensation handles factory-floor thermal variation, and the 200 kPa range covers most gas-line pressures downstream of regulators. Compared to bare-die pressure elements, the M-PAK housing protects the diaphragm from incidental contact during field installation.
추천
Altimeters and Barometric Instruments
Outdoor altimeters, weather stations, and portable barometric instruments benefit from the MPXM2202GST1's vented-gauge design - the back-side vent cancels ambient pressure changes so the sensor reads only the differential signal applied to the top port. With proper signal conditioning and temperature compensation, the device supports ±1.5 m altitude resolution based on the standard atmospheric model. The M-PAK package and surface-mount leads suit compact handheld enclosures where space and weight are constrained.
추천
Portable Gas-Flow Instrumentation
Handheld gas-leak detectors, combustion analyzers, and pneumatic tool controllers use the MPXM2202GST1 to measure inlet and outlet pressures in compact packages. The M-PAK surface-mount design supports reflow soldering on small PCBs, and the 0.12" port accepts standard silicone tubing used in respiratory and gas-analyzer test setups. Battery-powered designs should use a switched excitation scheme to reduce quiescent draw, since the MPXM2202GST1 dissipates power continuously while the bridge is energized.
추천
Appliance Water-Level Sensing
Dishwasher, washing-machine, and refrigerator water-level sensors can use the MPXM2202GST1 in vented-gauge mode to read hydrostatic head from a pressure tap at the bottom of a sump. The 200 kPa range covers typical appliance water-column heights up to ~20 m, and the compensated 0–85 °C window matches appliance operating environments. Designers must isolate the diaphragm from humid air with a sealed pneumatic line to prevent condensation damage over the appliance lifetime.
추천
추천 제품 요약
엔지니어링 참조 데이터: MPXM2202GST1 — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | MPXM2202GS | MPXM2202GST1 (NXP) | MPXM2102GS | MPXM2202AS |
|---|---|---|---|---|---|
| Brand | STMicroelectronics | STMicroelectronics | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 5-SMD M-PAK module, top tube port | 5-SMD M-PAK - same package | 5-SMD M-PAK - same package | 5-SMD M-PAK - same package | 5-SMD M-PAK - same package |
| Pressure Type | Vented Gauge | Vented Gauge | Vented Gauge | Vented Gauge | Absolute |
| Operating Pressure Range | 0 to 200 kPa (0 to 29.01 psi) | 0 to 200 kPa - same | 0 to 200 kPa - same | 0 to 100 kPa - half range | 0 to 200 kPa - same (absolute) |
| Full-Scale Span at 10 V | 0 to 40 mV | 0 to 40 mV | 0 to 40 mV | 0 to 40 mV | 0 to 40 mV |
| Linearity | ±0.25% (P2 grade) | ±0.25% - same | ±0.25% - same | ±0.25% - same | ±0.25% - same |
| Temperature Compensation Range | 0 °C to +85 °C | 0 °C to +85 °C | 0 °C to +85 °C | 0 °C to +85 °C | 0 °C to +85 °C |
주요 차별점
- On-chip thin-film temperature compensation (vs MPXM2102GS)
- Vented-gauge reference built into the top port (vs MPXM2202AS)
- Established 5-SMD M-PAK module footprint (vs MPXM2202GST1 (NXP original))
설계 노트
Drive the MPXM2202GST1 from a low-noise 10 V excitation rail - any ripple or noise on the supply multiplies directly through the 40 mV span and corrupts the pressure reading. Add a 0.1 µF ceramic decoupling capacitor close to the bridge input pins, and consider a pi-filter (10 Ω + 10 µF) for noisy supply environments. For battery-powered designs, use a switched-capacitor inverter with a low-pass output filter to enable excitation only during measurement windows.
Route the sensor output traces as a tightly coupled differential pair on an inner PCB layer, with ground guarding around the traces. Keep the path short to prevent the 40 mV signal from picking up 50/60 Hz mains hum or RF interference. Use an instrumentation amplifier with at least 60 dB CMRR (e.g., INA128) located within 50 mm of the sensor to maximize common-mode rejection before any single-ended amplification stage.
Estimated: at full pressure the bridge draws a few mA from the 10 V supply, so continuous excitation dissipates ~30 mW in the sensor - more than the package thermal rating if sealed insulation traps heat. Plan ventilation or switched excitation. Also avoid dropping the device into liquids: the M-PAK tube port does not seal against submersion, and ingress can damage the silicon diaphragm. Use a sealed pneumatic interface and hydrophobic filter for wet-environment applications.
On-chip temperature compensation covers 0 °C to +85 °C. Outside this range, span and offset drift become significant - plan for a user-side correction lookup table or an external NTC thermistor if your application operates at industrial extremes (-40 °C to +125 °C). Mount the device away from heat sources (linear regulators, power resistors) on the PCB; even an additional 10 °C self-heating from neighboring components can shift the offset by tens of pascals in high-accuracy use cases.
규정 준수 정보
RoHS compliant per STMicroelectronics product page; not AEC-Q100 qualified (consumer/industrial part); original Freescale/NXP part is now manufactured and supported by STMicroelectronics.
