MPX10DP - 10kPa Differential Pressure Sensor 35mV | STMicroelectronics
料号： MPX10DP ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $12.5 | $12.50 |
| 10 | $11.25 | $112.50 |
| 100 | $9.75 | $975.00 |
| 500 | $8.4 | $4,200.00 |
| 1,000 | $6.09 | $6,090.00 |
MPX10DP 概述
A piezoresistive pressure sensor is a MEMS device in which a silicon diaphragm with implanted strain gauges changes its Wheatstone-bridge resistance in proportion to applied differential pressure. The MPX10DP operates as a bridge transducer that converts differential pressure into a low-level mV-level voltage, so it sits at the bottom of the signal-conditioning chain - downstream of it are usually instrumentation amplifiers, ADC channels, and microcontroller-based temperature compensation algorithms. As a category, it belongs to the pressure sensor family -> MEMS sensor -> sensor -> transducer hierarchy.
Key features include a 0 kPa to 10 kPa (0 to 1.45 PSI) operating range, 35 mV full-scale span at 3 V excitation, differential dual-port tube inlet, and an uncompensated output requiring user-supplied temperature compensation. The 4-SIP through-hole mount with dual axial tubes simplifies pneumatic connection in laboratory, medical, and industrial pressure-sensing assemblies.
The device uses a single-axis silicon diaphragm with a four-resistor piezoresistive bridge, so its architecture is intentionally simple to allow OEM calibration and proprietary linearization. Because the output is uncompensated, designers must add a reference-grade op-amp stage (e.g., INA128 or AD8421) and active temperature compensation for production-grade accuracy.
Typical applications include low-pressure medical instrumentation (respiratory and spirometry circuits), HVAC differential flow sensing, barometric baseline sensing, industrial pneumatic monitoring, altimeter reference stages, and OEM custom pressure transducers. It is frequently a drop-in pre-cursor to the MPX5010DP integrated pressure sensor family.
When designing with this device, the key trade-off is uncompensated output: although it reduces unit cost, the designer must add calibration, temperature compensation, and zero/span trim circuitry, which raises development time. Use a low-drift instrumentation amplifier and a precision voltage reference for the bridge excitation.
This page synthesizes distributor pricing, drop-in pin-compatible alternatives, and practical design notes not found in the manufacturer datasheet alone.
直接替换替代料： MPX10DP ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： MPX10DP （相同外形与封装尺寸） ——差异在于 Output Type, Mounting Type, Compensation, Port Style, Sensitivity.
快速对比工具——选择替代料号进行并排对比：
MPX10D
✅ 直接替换✓ 有现货
$5.2 / 个
查看数据手册 →MPXV10GC6
✅ 直接替换📋 参考替代料（不在目录中）
MPX10GP
✅ 直接替换✓ 有现货
$7.48 / 个
查看数据手册 →MPX10GS
✅ 直接替换✓ 有现货
$9.95 / 个
查看数据手册 →MPX10DP-FS
✅ 直接替换📋 参考替代料（不在目录中）
MPX10DP 最大额定值与电气特性
| Pressure Type | Differential |
| Operating Pressure Range | 0 kPa to 10 kPa (0 to 1.45 PSI) |
| 输出类型 | Analog Wheatstone bridge (uncompensated) |
| Output Voltage Span | 0 mV to 35 mV at 3 V excitation |
| Supply Voltage (Excitation) | 3 V DC typical |
| Port Configuration | Dual male 0.19 in (4.93 mm) tube, axial |
| 封装 / 外壳 | 4-SIP Module |
| 安装类型 | Through-Hole |
| Temperature Compensation | None (uncompensated) |
| Media Compatibility | Dry gases (non-corrosive) |
MPX10DP 引脚配置
| 引脚 1 | Vout+ — Bridge positive output (signal +) |
| 引脚 2 | Vout- — Bridge negative output (signal -) |
| 引脚 3 | Vs / Vin- — Bridge excitation ground |
| 引脚 4 | Vin+ — Bridge excitation positive (3 V typical) |
典型应用
MPX10DP 适用于 6 应用s: Medical Spirometry and Respiratory Monitoring, HVAC Differential Flow and Filter Monitoring, Barometric Baseline / Weather Reference, Industrial Pneumatic and Process Pressure Sensing, OEM Custom Pressure Transducer Modules, Altimeter Reference and Variometer Stages.
Medical Spirometry and Respiratory Monitoring
The MPX10DP's 0-10 kPa (0-1.45 PSI) differential range and 35 mV full-scale bridge output align directly with spirometer flow-head pressure ranges where typical inspiratory/expiratory pressures span 0-7 kPa. Placed across a pneumotach differential pressure element, the bridge output is amplified by a low-noise instrumentation amplifier (e.g., AD8421) and digitized for tidal-volume calculation. The MPX10DP's piezoresistive bridge linearity and dual tube ports simplify pneumatic connection to standard flow-head fittings. Unlike higher-range compensated sensors such as MPX5010DP, the uncompensated MPX10DP enables OEM-custom calibration curves for proprietary neonatal ventilation platforms.
推荐
HVAC Differential Flow and Filter Monitoring
In HVAC duct systems the MPX10DP measures differential pressure across air filters, coils, and variable-air-volume (VAV) boxes where pressure drops typically span 0-500 Pa but can reach 1 kPa at saturated filters. Its 0-10 kPa range provides 10x safety headroom for transient spikes. Placed inline across the filter housing with pneumatic tubing, the bridge output is fed to a controller ADC for filter-replacement alerts. The dual axial 0.19 in tubes accept standard HVAC pneumatic fittings. Compared to integrated sensors, the uncompensated output lets HVAC OEMs embed filter-specific compensation curves.
推荐
Barometric Baseline / Weather Reference
The MPX10DP's 0-10 kPa differential range covers atmospheric pressure variation and barometric reference applications when one port is vented to ambient and the other to a sealed reference volume. With typical barometric pressure around 100 kPa, the device measures delta pressure with high resolution. The 35 mV full-scale output simplifies ADC interfacing, and the 4-SIP package simplifies through-hole prototype assembly. Unlike fully integrated barometric pressure sensors, the uncompensated MPX10DP lets OEM weather instruments apply custom altitude and temperature compensation algorithms.
推荐
Industrial Pneumatic and Process Pressure Sensing
In low-pressure pneumatic control loops, leak detection, and process gas monitoring, the MPX10DP's 0-10 kPa range and differential dual-port design fit directly into industrial control panels where line pressures are below 1.5 PSI. Its Wheatstone-bridge output interfaces with industrial 4-20 mA loop transmitters after amplification, and the 4-SIP package supports ruggedized conformal coating for harsh factory environments. The uncompensated design supports per-calibration-board factory trim for OEM process gauges.
推荐
OEM Custom Pressure Transducer Modules
The MPX10DP serves as the bare-bridge transducer element inside OEM-branded pressure transducer modules where the host manufacturer adds proprietary analog front-end, temperature compensation, and digital output stages. Its uncompensated raw output permits full custom calibration, and the 4-SIP outline simplifies final transducer potting and port integration. Compared to fully integrated sensors such as MPX5010DP, the bare MPX10DP gives full control of zero/span trim, compensation firmware, and proprietary connector pinout. Lower cost at high OEM volumes for OEM pricing structures.
推荐
Altimeter Reference and Variometer Stages
In altimeter and variometer designs the MPX10DP serves as the reference-stage differential sensor, paired with a separate absolute-pressure sensor to provide altitude-rate computation. Its 0-10 kPa differential range covers the small differential between two sealed volumes during climb-rate events. The 4-SIP through-hole package simplifies avionics harness assembly, and the uncompensated output lets designers apply custom temperature compensation across -40C to +85C. Compared to integrated altimeters, the bare MPX10DP provides finer control of measurement bandwidth.
推荐
推荐产品汇总
工程参考数据： MPX10DP ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | MPX10D | MPXV10GC6 | MPX10GP | MPX10GS | MPX10DP-FS |
|---|---|---|---|---|---|---|
| Package | 4-SIP Module (through-hole, dual tube) | 4-SIP Module - same | 4-SOP (surface-mount, with gel) | 4-SIP Module - same | 4-SIP Module - same | 4-SIP Module - same |
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | NXP Semiconductors |
| Pressure Type | Differential | Differential | Differential | Gauge | Gauge | Differential |
| Operating Pressure Range | 0 to 10 kPa | 0 to 10 kPa | 0 to 10 kPa | 0 to 10 kPa | 0 to 10 kPa | 0 to 10 kPa |
| Output Voltage Span | 0-35 mV @ 3 V | 0-35 mV @ 3 V | 0-35 mV @ 3 V | 0-35 mV @ 3 V | 0-35 mV @ 3 V | 0-35 mV @ 3 V |
| Supply Voltage (Excitation) | 3 V DC typical | 3 V DC | 3 V DC | 3 V DC | 3 V DC | 3 V DC |
| Compensation | Uncompensated | Uncompensated | Uncompensated (gel-protected) | Uncompensated | Uncompensated | Uncompensated |
| Port Type | Dual axial tube | Single port | Dual port (SOP package) | Gauge port | Gauge port single side | Dual axial tube |
关键差异点
- Dual differential port with axial tubes for direct pneumatic connection （对比 MPX10GP)
- Through-hole 4-SIP package simplifies prototype and harness assembly （对比 MPXV10GC6)
- Uncompensated output enables full custom calibration curves （对比 MPX5010DP)
- Long-running legacy Motorola/NXP design with mature second sources （对比 MPX10DP-FS)
设计说明
Estimated: The MPX10DP bridge output is in the 0-35 mV range - low enough that PCB trace noise, op-amp offset voltage, and thermal EMF dominate measurement accuracy. Use a low-offset, low-drift instrumentation amplifier (e.g., AD8421 with 5 nV/2Hz input) placed within 25 mm of the bridge pins. Use a guard ring around the bridge traces and route the bridge excitation as a Kelvin connection from the precision reference. Avoid sharing ground returns with switching power or digital logic - astable for low-frequency bridge measurement.
Estimated: At 3 V excitation, the MPX10DP bridge dissipates approximately 3 mW (assuming 3 kOhm bridge impedance) - far below self-heating concerns. The dominant thermal error is bridge-resistance temperature drift (typically -2000 ppm/C on offset and span). Implement software-based temperature compensation using a local NTC thermistor or the host MCU's internal temperature sensor. For production-grade sensors, perform a 2-point or 3-point calibration across the 0-85C operating range and store compensation coefficients in EEPROM.
Common pitfalls: (1) Exceeding 3 V excitation overstresses the bridge; use a 3.0 V or 3.3 V precision reference. (2) Connecting differential ports in reverse affects polarity of output voltage - verify port assignment for vacuum vs pressure. (3) Using a non-instrumentation-grade op-amp (e.g., generic LM358) introduces offset voltage greater than the bridge signal - use precision INA128 or AD8421. (4) Applying pressure above the 10 kPa operating range without margin can permanently damage the silicon diaphragm.
Estimated: The MPX10DP 4-SIP module is through-hole and should be mounted on the PCB with the dual tube ports oriented for direct pneumatic connection - avoid long tubing runs that introduce flow-related dynamic pressure errors. Keep the bridge traces short (under 25 mm) and use a 4-layer PCB with a dedicated ground plane under the bridge traces. Add a 100 nF decoupling capacitor on the bridge excitation pin as close to the device as possible.
合规信息
RoHS/REACH compliance data not present in the verified web data; marked 'unknown' per data authenticity rules. The MPX10DP is a legacy through-hole sensor not subject to AEC-Q100 automotive qualification.