MPX5050DP - 50kPa Differential Pressure Sensor 6-SIP | NXP
料号： MPX5050DP ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $16.5 | $16.50 |
| 10 | $14.25 | $142.50 |
| 100 | $11.8 | $1,180.00 |
| 500 | $9.95 | $4,975.00 |
| 1,000 | $8.65 | $8,650.00 |
MPX5050DP 概述
A piezoresistive pressure sensor is a transducer that converts an applied pressure into a measurable electrical signal by exploiting the piezoresistive effect in silicon - the change in resistance of a diffused strain gauge when mechanical stress is applied to a silicon diaphragm. Within the broader sensor hierarchy, the MPX5050DP sits under MEMS sensors -> pressure sensors -> differential pressure sensors -> signal-conditioned pressure transducers. The integrated bipolar op-amp and thin-film resistor network on the die provide a temperature-compensated, calibrated output, eliminating the need for external analog signal-chain components in most applications.
Key features include a pressure range of 0 to 50 kPa differential, full-scale span of 4.5 V typical (0.2 V to 4.7 V), 5 V single-supply operation, sensitivity of 90 mV/kPa typical, accuracy of ±2.5% over 0C to 85C, and overpressure capability of 200 kPa. The 6-SIP package includes two parallel 4.93 mm (0.19") tubes for hose connection, simplifying mechanical integration in fluidic systems. Ratiometric output tracks supply voltage variations for noise-immune ADC reading.
Typical applications include HVAC blower and filter monitoring, automotive manifold absolute pressure sensing, medical respiratory instruments, industrial process control, level detection, and consumer appliance flow measurement. The dual-port differential configuration is particularly well suited to measuring pressure drop across flow restrictors, filters, and heat exchangers.
When designing with this device, ensure that the high-impedance Vout pin is buffered with an op-amp or fed directly to a microcontroller A/D input. Decouple VCC locally with 100 nF ceramic bypass, keep the pressure ports sealed to the reference atmosphere on the low side, and avoid exposing the die to condensing humidity or condensing air conditions. The tube-port orientation simplifies pneumatic plumbing but requires a small PCB cutout or off-board mounting to provide port access.
This page synthesizes distributor pricing, pin-compatible alternatives, and practical design notes not found in the manufacturer datasheet.
直接替换替代料： MPX5050DP ——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： MPX5050DP （相同外形与封装尺寸） ——差异在于 Operating Temperature, Mounting Type, Output Type, Package, Technology.
快速对比工具——选择替代料号进行并排对比：
MPX5050GP
✅ 直接替换✓ 有现货
$7.85 / 个
查看数据手册 →MPXV5050GP
✅ 直接替换✓ 有现货
$10.66 / 个
查看数据手册 →MPX5010DP
✅ 直接替换✓ 有现货
$9.6 / 个
查看数据手册 →MPX5100DP
✅ 直接替换✓ 有现货
$12.03 / 个
查看数据手册 →XGZP6895A-050KPD
✅ 直接替换📋 参考替代料（不在目录中）
MPX5050DP 最大额定值与电气特性
| Manufacturer | NXP Semiconductors |
| 传感器类型 | Differential Pressure Sensor |
| Operating Principle | Piezoresistive (MEMS silicon) |
| Pressure Range | 0 kPa to 50 kPa (0 PSI to 7.25 PSI) |
| Pressure Port Type | Differential, dual tube port (Male, 0.19" / 4.93 mm Tube) |
| 输出类型 | Analog ratiometric voltage |
| 输出电压范围 | 0.2 V to 4.7 V |
| Full-Scale Span | 4.5 V typical |
| 电源电压 | 5.0 V nominal (4.75 V to 5.25 V) |
| Sensitivity | 90 mV/kPa typical |
| Response Time | 1 ms typical |
| Overpressure Rating | 200 kPa |
| 工作温度 | -40C to +125C |
| 封装 | 6-SIP Module (SOT1693-1 / Case 1351-01) |
| 安装类型 | Through-Hole (with dual pressure ports) |
| RoHS 状态 | Compliant |
MPX5050DP 引脚配置
| 引脚 1 | GND — Ground reference |
| 引脚 2 | Vout — Analog ratiometric output (0.2 V to 4.7 V) |
| 引脚 3 | VCC — +5 V supply input |
| 引脚 4 | NC — Not connected (no internal bond) |
| 引脚 5 | Port 1 (+) — Differential pressure port 1 (high side, 0.19" tube) |
| 引脚 6 | Port 2 (-) — Differential pressure port 2 (low side, 0.19" tube) |
典型应用
MPX5050DP 适用于 6 应用s: HVAC Blower and Filter Monitoring, Automotive Manifold Pressure Sensing, Medical Respiratory and CPAP Monitoring, Industrial Process Control and Flow Monitoring, Liquid Level and Tank Measurement, Consumer Appliance Flow and Pressure Feedback.
HVAC Blower and Filter Monitoring
The MPX5050DP's 0-50 kPa range captures the full pressure spectrum of HVAC duct and filter drop applications, while its dual differential ports let it directly sense pressure drop across a filter or heat-exchanger coil with two simple hose taps. The 0.2 V to 4.7 V analog output interfaces directly to a microcontroller ADC without external op-amp conditioning, reducing BOM cost. The 90 mV/kPa sensitivity provides 5.5-bit usable resolution over a 10-bit ADC when the full 50 kPa span is used, sufficient for filter-loading detection and blockage alerts. Compared to differential pressure switches, the analog output enables variable threshold detection for predictive maintenance algorithms.
推荐
Automotive Manifold Pressure Sensing
The MPX5050DP's automotive-grade operating range of -40C to +125C and ratiometric 5 V output make it a strong candidate for engine control unit (ECU) manifold absolute pressure (MAP) signal reference and vacuum monitoring when paired with a reference-side port. The on-chip temperature compensation keeps the output within tolerance across underhood temperature swings without external trim, simplifying ECU firmware calibration. The 200 kPa overpressure rating survives turbo boost spikes that would damage lower-pressure sensors, providing a 4x safety margin. The dual-port differential configuration supports both absolute (gauge-reference) and differential (across-restrictor) sensing topologies with the same SKU.
推荐
Medical Respiratory and CPAP Monitoring
The MPX5050DP's 0-50 kPa range comfortably covers typical CPAP/BiPAP therapeutic pressures (4-20 cm H2O is 0.4-2 kPa, well within the sensor's range) with substantial headroom for fault-event detection. The ratiometric 5 V analog output allows direct connection to the safety-critical pressure channel of a respiratory device's analog front end, where its 1 ms response time supports real-time breath cycle monitoring. The integrated signal conditioning and temperature compensation remove the need for an external instrumentation amplifier that would otherwise introduce drift into the patient-pressure reading. Note that system-level medical device qualification (FDA, CE MDR, ISO 13485) remains the integrator's responsibility and is not implied by the sensor alone.
推荐
Industrial Process Control and Flow Monitoring
The MPX5050DP's dual-port differential input is purpose-built for measuring pressure drop across an orifice plate, venturi, or flow element in industrial flow meters. Placing the sensor across the primary element converts flow rate into a measurable differential pressure, with the 90 mV/kPa sensitivity providing useful resolution across typical 1-40 kPa flow spans. The robust 200 kPa overpressure tolerance handles water hammer and process upset events common in liquid flow systems. The dual parallel 4.93 mm tubes accept standard pneumatic push-fit fittings, eliminating custom port adapters and reducing installation labor in factory automation panels.
推荐
Liquid Level and Tank Measurement
The MPX5050DP can be configured as a hydrostatic level sensor by referencing one port to the liquid head and the other to atmosphere, with the differential pressure output proportional to the head height of the liquid column. The 0-50 kPa range covers water columns up to about 5 meters, suitable for most small to mid-size chemical tanks, coolant reservoirs, and water storage tanks. The on-chip signal conditioning removes the need for a separate instrumentation amplifier at the tank probe, simplifying intrinsically safe (IS) barrier implementation. The through-hole 6-SIP package installs on the tank-top enclosure bulkhead with the tubes penetrating into the tank and reference environment.
推荐
Consumer Appliance Flow and Pressure Feedback
The MPX5050DP integrates into consumer appliances such as washing machines, dishwashers, and water heaters for inlet-pressure verification, pump-flow verification, and filter-blockage detection. The 0.2 V to 4.7 V ratiometric output feeds directly to the appliance's main microcontroller ADC without a precision op-amp, minimizing BOM cost in cost-sensitive consumer markets. The robust 200 kPa overpressure rating survives pressure spikes from solenoid valve closures, and the -40C to +125C operating range handles under-counter and utility-room environments. The dual-port differential input lets one device sense across a filter element AND verify inlet water pressure without two separate sensors.
推荐
推荐产品汇总
工程参考数据： MPX5050DP ——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 | MPX5050GP | MPXV5050GP | MPX5010DP | MPX5100DP | XGZP6895A-050KPD |
|---|---|---|---|---|---|---|
| Package | 6-SIP Module (Case 1351-01) | 6-SIP Module (Case 1351-01) - same | 6-SIP Module (Case 1351-01) - same | 6-SIP Module (Case 1351-01) - same | 6-SIP Module (Case 1351-01) - same | 6-SIP Module (compatible) - same |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | CFSensor |
| Pressure Range | 0 to 50 kPa | 0 to 50 kPa | 0 to 50 kPa | 0 to 10 kPa | 0 to 100 kPa | 0 to 50 kPa |
| Pressure Port Type | Differential, dual tube | Gauge, single tube | Gauge, single tube | Differential, dual tube | Differential, dual tube | Differential, dual tube |
| Sensitivity | 90 mV/kPa | 90 mV/kPa | 90 mV/kPa | 450 mV/kPa | 45 mV/kPa | 90 mV/kPa typical |
| Supply Voltage | 5 V | 5 V | 5 V | 5 V | 5 V | 5 V (3.3 V option) |
| Output Voltage Range | 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 | 0.2 V to 4.7 V | 0.2 V to 4.7 V |
| Operating Temperature | -40C to +125C | -40C to +125C | -40C to +125C | -40C to +125C | -40C to +125C | -40C to +85C typical |
| Approx. Unit Price (qty 1) | $16.50 | $16.00 | $15.50 | $14.00 | $17.00 | $8 to $12 typical |
关键差异点
- Dual-tube differential pneumatic interface (no external port adapter needed) （对比 MPX5050GP)
- Five-times wider pressure range with same output span （对比 MPX5010DP)
- Cross-brand drop-in alternative exists at lower cost （对比 XGZP6895A-050KPD (CFSensor))
- Through-hole assembly with integral port tubes （对比 MPXV5050GP)
设计说明
The MPX5050DP requires a clean, regulated 5 V supply within 4.75 V to 5.25 V for the ratiometric output to maintain specified accuracy. Place a 100 nF ceramic bypass capacitor as close as practical to the VCC pin (pin 3), with an additional 10 uF bulk decoupling capacitor on the same supply rail. Although the output is ratiometric and tracks supply variations, decoupling ensures the sensor's internal bandgap reference is not corrupted by digital switching noise that may ride on shared supplies.
The MPX5050DP 6-SIP module requires a PCB cutout or off-board mounting to provide access to the dual pressure ports. Do not place signal traces under or near the ports to avoid contamination from pneumatic leaks, and route the high-impedance Vout pin (pin 2) away from digital clock signals and switching regulator nodes. Place a buffer op-amp (e.g., MCP6001 or similar low-offset amplifier) close to the sensor output if the ADC is more than a few centimeters away, to prevent capacitive loading from degrading the output signal.
Avoid exposing the MPX5050DP die to condensing humidity, condensing air, or direct water spray: the sensor is rated for non-corrosive gas and dry air per NXP. The dual pressure ports share a common acoustic path through the sensor body, so a blocked or kinked tube on one side causes a pressure offset error that will look like a real pressure reading. Validate the pneumatic plumbing for leaks before calibrating, and consider adding a moisture filter or hydrophobic membrane to the high-pressure port in humid environments. Always vent the low-pressure port to true atmosphere (not the enclosure interior) for accurate gauge readings.
合规信息
RoHS and REACH compliant per NXP product page. Not AEC-Q100 qualified as a standalone sensor; AEC-Q100 qualification is at the system level. Halogen-free status not explicitly listed in the provided data.
