MPXH6115A6T1 - 15-115 kPa Absolute Pressure Sensor | STMicroelectronics
料号： MPXH6115A6T1 ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $9.5 | $9.50 |
| 10 | $8.75 | $87.50 |
| 100 | $7.95 | $795.00 |
| 500 | $7.1 | $3,550.00 |
| 1,000 | $6.45 | $6,450.00 |
MPXH6115A6T1 概述
A pressure sensor is a MEMS device that converts applied pressure into an electrical signal. Absolute pressure sensors like the MPXH6115A6T1 reference vacuum, meaning the output represents pressure relative to a perfect vacuum rather than current atmospheric pressure. These sensors integrate piezoresistive strain gauges on a silicon diaphragm with on-chip bipolar op-amp circuitry and thin-film resistor networks. This integration delivers a temperature-compensated, calibrated output, making the device suitable for direct connection to microcontrollers without additional signal conditioning. Pressure sensors sit within the broader sensor hierarchy alongside temperature, motion, and flow sensors, serving as foundational inputs for industrial, medical, and automotive measurement systems.
Key features of the MPXH6115A6T1 include a 5 V typical supply voltage, 5.0% maximum accuracy over the 0°C to 85°C compensated range, and on-chip temperature compensation eliminating external calibration. The vertical-port SOIC-8 package enables top-side mounting for sealed enclosures. Sensitivity is approximately 46 mV/kPa across the 15-115 kPa operating range, and the ratiometric output ensures accuracy across supply voltage variations from 4.75 V to 5.25 V.
The MPXH6115A6T1 uses advanced silicon micromachining combined with bipolar signal conditioning on a single die. The thin-film resistor network performs laser-trimmed offset and span compensation at production, and the integrated op-amp buffers the Wheatstone bridge output to drive ADC inputs directly. This monolithic integration reduces PCB area and BOM cost compared to discrete bridge + amplifier solutions, while improving long-term drift performance.
Typical uses include altimeters, barometers, weather stations, HVAC pressure monitoring, industrial process control, and engine control boost pressure sensing. The absolute reference makes the device well-suited for altitude measurement since atmospheric pressure decreases predictably with elevation.
When designing with the MPXH6115A6T1, decouple VCC to ground with a 100 nF ceramic capacitor placed within 5 mm of the supply pin. Avoid contamination of the pressure inlet with conformal coating or flux residue. Use a 10 µF bulk capacitor if the sensor is more than 50 mm from the system supply.
This page synthesizes distributor pricing, drop-in replacements, and practical design notes that go beyond the manufacturer's datasheet, including application-specific guidance for altimeter and HVAC designs.
直接替换替代料： MPXH6115A6T1 ——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： MPXH6115A6T1 （相同外形与封装尺寸） ——差异在于 Output Type, Package, Operating Temperature, Supply Voltage, Accuracy.
快速对比工具——选择替代料号进行并排对比：
MPXHZ6115A6T1
✅ 直接替换✓ 有现货
$10.85 / 个
查看数据手册 →MPXH6115A6U
✅ 直接替换✓ 有现货
$9.95 / 个
查看数据手册 →MPXA6115A6T1
✅ 直接替换✓ 有现货
$12.05 / 个
查看数据手册 →MPXH6115AC6T1
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$5.85 / 个
查看数据手册 →MPXH6115A6T1
✅ 直接替换✓ 有现货
$6.45 / 个
查看数据手册 →MPXH6300A1
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
MPXH6115A6T1 最大额定值与电气特性
| Pressure Type | Absolute |
| Operating Pressure Range | 15 kPa to 115 kPa (2.18 PSI to 16.68 PSI) |
| Maximum Overload Pressure | 400 kPa |
| 输出类型 | Analog Voltage (Ratiometric) |
| 输出电压范围 | 0.2 V to 4.7 V (at 5 V supply) |
| 电源电压 | 4.75 V to 5.25 V (5 V typical) |
| Sensitivity | 46 mV/kPa nominal |
| Accuracy | ±5.0% (0°C to 85°C, compensated) |
| 工作温度范围 | -40°C to +125°C |
| Compensated Temperature Range | 0°C to +85°C |
| 封装 | 8-SOIC (0.295", 7.50 mm width), surface mount |
| Port Configuration | Vertical (top-side) port |
| 安装类型 | Surface Mount |
| MSL 等级 | 1 (unlimited floor life at <30°C / 85% RH) |
| RoHS 状态 | Compliant |
MPXH6115A6T1 引脚配置
| 引脚 1 | GND — Ground |
| 引脚 2 | VCC — Supply voltage (5 V nominal) |
| 引脚 3 | VOUT — Analog ratiometric output voltage (0.2-4.7 V) |
| 引脚 4 | NC — No connect (not connected, per datasheet) |
| 引脚 5 | NC — No connect (not connected, per datasheet) |
| 引脚 6 | NC — No connect (not connected, per datasheet) |
| 引脚 7 | NC — No connect (not connected, per datasheet) |
| 引脚 8 | GND — Ground (often tied to pin 1) |
典型应用
MPXH6115A6T1 适用于 6 应用s: Barometric Altimeter for Drones, Weather Station Barometer, HVAC Duct Pressure Monitoring, Engine Boost Pressure Sensing, Medical Respiratory Flow Sensor, Industrial Process Control Pressure Monitor.
Barometric Altimeter for Drones
The MPXH6115A6T1 is ideal for barometric altimeters in UAVs and drones because its 15-115 kPa absolute pressure range maps cleanly onto the atmospheric pressure envelope encountered from sea level to ~13 km altitude. With a sensitivity of 46 mV/kPa, the sensor resolves approximately 0.3 m of altitude per LSB at 12-bit ADC resolution. The ratiometric output cancels VCC drift, which is critical on drone platforms with battery-supplied rails that sag under load. The vertical-port 8-SOIC package mounts on the top side of the PCB, allowing the pressure inlet to face the airflow or sealed enclosure. Recommended companions: STM32L4 microcontroller for low-power ADC sampling, BMP280 firmware reference for pressure-to-altitude conversion.
推荐
Weather Station Barometer
The MPXH6115A6T1 fits consumer-grade weather station barometers because its ±5.0% accuracy over 0°C to +85°C is sufficient for household barometric pressure displays. Absolute pressure sensing eliminates the need for a separate atmospheric reference, simplifying the BOM. The 5 V supply and 0.2-4.7 V output integrate directly with 5 V-tolerant ADC inputs on common weather-station MCUs. The vertical-port package allows top-side PCB mounting with a sealed inlet tube routing ambient air to the sensor. Recommended companions: ESP32 for cloud telemetry, BMP280 for redundant sensing.
推荐
HVAC Duct Pressure Monitoring
The MPXH6115A6T1 suits HVAC duct static pressure measurement in commercial building automation systems. The 15-115 kPa range covers the 0.2-1.5 kPa typical duct pressure range after calibration, with the higher headroom allowing the sensor to handle transient overpressure events without damage. The on-chip temperature compensation eliminates recalibration during seasonal HVAC cycling. The 8-SOIC vertical-port package installs with the inlet facing the duct interior, requiring only a small barbed fitting for pressure tubing. Recommended companions: PIC16F18855 MCU for signal processing, MAX31865 for PT1000 RTD temperature compensation.
推荐
Engine Boost Pressure Sensing
The MPXH6115A6T1 fits gasoline engine boost pressure monitoring in motorcycles, marine engines, and small automotive applications where its 115 kPa upper limit is sufficient. The -40°C to +125°C operating range covers underhood environments, and the SOIC-8 vertical-port package allows direct manifold mounting via a sealed O-ring interface. The 5 V supply and ratiometric output interface with ECU analog inputs without additional signal conditioning. For high-boost turbocharged engines exceeding 115 kPa manifold pressure, choose a higher-range sensor such as MPXH6400A. Recommended companions: STM32F103 for engine control, MCP2515 CAN for telemetry.
推荐
Medical Respiratory Flow Sensor
The MPXH6115A6T1 enables low-cost spirometer and CPAP pressure monitoring in medical devices where its 15-115 kPa range covers the 0.2-1 kPa typical respiratory flow pressure drop. The monolithic signal-conditioned output simplifies medical device IEC 60601-1 isolation by eliminating the need for additional analog front-end components near the patient. The vertical-port SOIC-8 package enables single-sided PCB mounting inside the airflow channel with a silicone gasket seal. Recommended companions: MSP430 low-power MCU for battery operation, AD8628 op-amp for ECG synchronization.
推荐
Industrial Process Control Pressure Monitor
The MPXH6115A6T1 serves in industrial process control panels for tank-level, vacuum-chamber, and pump-discharge pressure monitoring. The absolute pressure reference makes the sensor suitable for sealed-tank applications where atmospheric reference is unavailable. The wide -40°C to +125°C operating range supports outdoor and unheated industrial cabinets, while the 400 kPa maximum overload rating protects against pressure spikes during pump startup. The 5 V supply and ratiometric output interface directly with PLC analog input modules. Recommended companions: MAX31865 RTD digitizer for redundant sensing.
推荐
推荐产品汇总
工程参考数据： MPXH6115A6T1 ——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 | MPXHZ6115A6T1 | MPXH6115A6U | MPXA6115A6T1 | MPXH6115AC6T1 | MPXH6300A1 |
|---|---|---|---|---|---|---|
| Package | 8-SOIC vertical port | 8-SOIC vertical port - same | 8-SOIC vertical port - same | 8-SOIC vertical port - same | 8-SOIC vertical port - same | 8-SOIC vertical port - same |
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | NXP Semiconductors | STMicroelectronics | STMicroelectronics |
| Pressure Range | 15-115 kPa | 15-115 kPa | 15-115 kPa | 15-115 kPa | 15-115 kPa | 20-300 kPa |
| Output Voltage | 0.2-4.7 V | 0.2-4.7 V | 0.2-4.7 V | 0.2-4.7 V | 0.2-4.7 V | 0.2-4.7 V |
| Supply Voltage | 5.0 V | 5.0 V | 5.0 V | 5.0 V | 5.0 V | 5.0 V |
| Compensated Temp Range | 0°C to +85°C | -40°C to +125°C (extended) | 0°C to +85°C | 0°C to +85°C | 0°C to +85°C | 0°C to +85°C |
| Accuracy | ±5.0% | ±5.0% | ±5.0% | ±5.0% | ±5.0% | ±5.0% |
| Packaging Form | Tape & Reel | Tape & Reel | Tube | Tape & Reel | Tape & Reel | Tray |
关键差异点
- Wider operating range than supply gauge companion (15-115 kPa vs 0-115 kPa) （对比 MPX5700GP gauge sensor)
- Pin-compatible extended temperature variant available （对比 MPXHZ6115A6T1)
- Cross-brand availability through NXP/Freescale legacy （对比 MPXA6115A6T1 (NXP))
设计说明
Place a 100 nF ceramic decoupling capacitor between VCC (pin 2) and GND (pin 1 or 8) within 5 mm of the sensor pins. Use a 10 µF bulk tantalum or ceramic capacitor if the sensor is located more than 50 mm from the system 5 V regulator. Avoid routing digital switching traces near the analog output (pin 3) to prevent capacitive coupling of switching edges into the small 46 mV/kPa analog signal.
Do not apply conformal coating, potting compound, or flux residue to the vertical pressure port on top of the SOIC-8 package. Contamination of the inlet port alters the pneumatic path and shifts the output reading. If conformal coating is required for the rest of the board, mask the port opening before coating and use a low-viscosity silicone dam around the inlet.
The MPXH6115A6T1 output is ratiometric to VCC, so the ADC reference voltage must be tied to the same 5 V supply as the sensor. Using a separate ADC reference (e.g., internal 2.5 V bandgap) will cancel the ratiometric benefit and reintroduce VCC drift. Add a 100 Ω series resistor and 1 nF capacitor to ground on the VOUT pin for ADC input protection against ESD events.
The sensor's on-chip temperature compensation is optimized for the 0°C to +85°C range. Outside this range the accuracy degrades from ±5.0% to approximately ±10% at the -40°C and +125°C extremes. For applications requiring high accuracy across the full industrial temperature window, choose the MPXHZ6115A6T1 high-temperature-extended variant, which is pin-compatible and drop-in replaceable.
合规信息
RoHS compliant per STMicroelectronics product declaration. Lead-free surface-mount 8-SOIC package supports reflow profiles up to 260°C per IPC/JEDEC J-STD-020. Halogen-free status not explicitly stated in provided data; marked unknown. Not AEC-Q100 qualified - choose MPXH6115A6T1 automotive-grade variant if available.
