MP3H6115A6U - 15-115 kPa Absolute Pressure Sensor | NXP
部品番号: MP3H6115A6U ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $8.31 | $8.31 |
| 10 | $7.65 | $76.50 |
| 100 | $6.4 | $640.00 |
| 500 | $5.5 | $2,750.00 |
| 1,000 | $4.85 | $4,850.00 |
MP3H6115A6U 概要
A piezoresistive transducer (also called a pressure sensor, pressure transducer, or barometric sensor) is a MEMS device that converts applied pressure into a measurable electrical signal. The MP3H6115A6U belongs to the broader category hierarchy of pressure sensor -> MEMS sensor -> transducer -> sensor IC -> semiconductor. Within absolute-pressure variants, it sits alongside gauge-pressure and differential-pressure families, and is commonly used in systems where pressure is referenced to a sealed vacuum cavity rather than to ambient air.
Key features include a 3 V supply operation, an analog output that is ratiometric to the supply voltage, on-chip temperature compensation and calibration, and high accuracy at elevated temperatures. The sensor combines advanced micromachining techniques, thin-film metallization, and bipolar semiconductor processing, enabling a small-form-factor, high-reliability, system-level pressure measurement that reduces or eliminates external signal conditioning.
The MP3H6115A6U architecture uses a piezoresistive strain-gauge bridge formed on a silicon diaphragm; deflection of the diaphragm under pressure unbalances the bridge, and the on-chip bipolar op-amp and thin-film resistor network amplify and condition the differential signal into a single-ended, ground-referenced analog output. Because the device is calibrated at the factory, designers typically do not need to perform multi-point software correction over temperature, which shortens firmware development cycles.
Typical applications include automotive air-pressure monitoring, HVAC and barometric pressure measurement, weather-station instrumentation, medical respiratory equipment, altimeter and altitude-hold subsystems in drones, and industrial pneumatic controls. The wide compensated temperature range makes the part particularly well suited to under-hood automotive and outdoor industrial deployments.
When designing with the MP3H6115A6U, follow the manufacturer datasheet for input/output capacitor selection, port sealing against moisture, and PCB layout recommendations. Use a clean, dry reference-side cavity (the device is absolute-type) and provide adequate mechanical isolation from system vibration to avoid noise pickup in the analog output.
This page synthesizes distributor pricing, drop-in alternative listings, and practical design notes that are not found in the manufacturer datasheet alone.
ドロップイン代替品: MP3H6115A6U — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
このシリーズのバリエーション
同一シリーズでドロップイン互換のモデル: MP3H6115A6U （同一形状・フットプリント） — 相違点: Package, Supply Voltage, Output Type, Output Voltage Range, Pressure Port.
クイック比較ツール — 並列比較する代替部品を選択:
MP3H6115A6T1
✅ ドロップイン✓ 在庫あり
$4.1 / 個
データシートを見る →MP3H6115AC6U
✅ ドロップイン📋 参考代替品（カタログ未掲載）
MPXH6115AC6U
✅ ドロップイン✓ 在庫あり
$5.75 / 個
データシートを見る →MPXH6115A6U
✅ ドロップイン✓ 在庫あり
$9.95 / 個
データシートを見る →MP3H6115AC6T1
✅ ドロップイン📋 参考代替品（カタログ未掲載）
MP3H6115A6U 最大定格＆電気的特性
| センサタイプ | Absolute pressure sensor |
| Pressure Range | 15 kPa to 115 kPa (2.18 PSI to 16.68 PSI) |
| 電源電圧 | 3 V |
| 出力タイプ | Analog, ratiometric |
| 出力電圧範囲 | 0.12 V to 2.8 V |
| Operating Pressure | 15 kPa ~ 115 kPa |
| Pressure Port | Male - 0.13 inch (3.3 mm) tube |
| Accuracy | High accuracy at high temperature (per datasheet) |
| Temperature Compensation | -40 C to +125 C |
| Technology | Piezoresistive (MEMS) with bipolar signal conditioning |
| パッケージ | 8-SOIC (SOP-8), 0.295 inch / 7.50 mm body width |
| 実装タイプ | Surface Mount |
| Signal Conditioning | On-chip bipolar op-amp and thin-film resistor network |
| Output Ratiometric | Yes (output proportional to VDD) |
| 動作温度 | -40 C to +125 C |
| Package Material | Durable thermoplastic (PPS) surface-mount package |
| RoHS ステータス | Compliant |
MP3H6115A6U ピン構成
| ピン 1 | VCC — 3 V supply input |
| ピン 2 | GND — Ground |
| ピン 3 | VOUT — Analog ratiometric output (0.12 V to 2.8 V) |
| ピン 4 | NC — Not connected (per datasheet) |
| ピン 5 | NC — Not connected (per datasheet) |
| ピン 6 | NC — Not connected (per datasheet) |
| ピン 7 | NC — Not connected (per datasheet) |
| ピン 8 | NC — Not connected (per datasheet) |
主な用途
MP3H6115A6U の用途: 6 件s: Automotive Air Pressure Monitoring, HVAC Barometric Pressure Sensing, Weather Station Instrumentation, Medical Respiratory Equipment, Drone Altimeter and Altitude Hold, Industrial Pneumatic Control.
Automotive Air Pressure Monitoring
The MP3H6115A6U fits automotive air-pressure monitoring because its 15-115 kPa absolute-pressure span directly covers manifold and barometric pressures seen in intake and cabin systems. The on-chip calibration and -40 C to +125 C temperature compensation match under-hood thermal stress without external signal conditioning. Place the part near the manifold with a sealed 3.3 mm port tube to feed pressure into the top of the SOIC-8; route the analog output to a SAR ADC whose reference tracks the 3 V sensor supply so the ratiometric output cancels supply drift. The 0.12 V to 2.8 V swing gives full-scale ADC utilization at 3 V reference. Compared with discrete bridge + op-amp solutions, the integrated approach eliminates two or three external ICs and the corresponding multi-point temperature calibration in ECU firmware.
おすすめ
HVAC Barometric Pressure Sensing
The MP3H6115A6U is well suited to HVAC duct and building barometric sensing because the 15-115 kPa range captures sub-atmospheric to mildly pressurized duct conditions with high linearity. Its ratiometric 0.12-2.8 V output at 3 V supply pairs cleanly with low-cost 10- or 12-bit ADCs in HVAC controllers, and the factory calibration removes the need for in-system pressure-trim procedures at production. Mount the SOIC-8 on a small breakout board with a sealed tube fitting on the 3.3 mm port; locate the bypass capacitor within 3 mm of the VDD pin and route the analog output away from TRIAC switching traces. The integrated op-amp and thin-film network give a low-noise analog output that improves differential-pressure measurement resolution versus discrete bridge designs.
おすすめ
Weather Station Instrumentation
Weather stations benefit from the MP3H6115A6U's 15-115 kPa absolute-pressure span, which directly maps to sea-level reference (101.325 kPa) and to typical inland pressure variations (about 95-105 kPa). The calibrated, temperature-compensated output lets a microcontroller compute barometric pressure in firmware with only a simple linearization, and the SOIC-8 package is small enough to fit inside compact outdoor sensor housings. Use a Gore vent in the port line so the sensor's sealed absolute cavity is referenced only to the outside air, and seal the SOIC-8 against moisture with conformal coating on the analog-output trace side. The 0.12-2.8 V ratiometric output simplifies ADC reference design, and the -40 C to +125 C compensated range covers outdoor operation across temperate and tropical climates.
おすすめ
Medical Respiratory Equipment
In medical respiratory equipment such as CPAP and spirometer sub-assemblies, the MP3H6115A6U provides a calibrated analog pressure output that interfaces directly to the front-end ADC of a respiratory controller. The 15-115 kPa absolute span accommodates the small pressure fluctuations generated by patient breathing circuits (typically a few kPa around atmospheric), and the on-chip temperature compensation removes drift across warm-up cycles that would otherwise require in-system software correction. Place the part on the inspiratory/expiratory manifold with a sealed tube feeding the 3.3 mm port; isolate it from pump vibration with a short flexible tube section to keep the analog output clean. Compared with disposable resistive bridge sensors, the integrated signal chain eliminates external op-amps and trims, lowering BOM cost and assembly time.
おすすめ
Drone Altimeter and Altitude Hold
The MP3H6115A6U enables barometric altitude hold in multirotor drones because its 15-115 kPa absolute range maps cleanly to typical flight altitudes (sea level to roughly 3000 m). The on-chip calibration delivers sufficient accuracy to hold altitude within a meter when paired with a simple moving-average filter in firmware, and the SOIC-8 package fits on small flight-controller boards. Route the analog output to a dedicated ADC channel with a low-pass filter; keep the bypass capacitor close to VDD to suppress motor ESC switching noise. The -40 C to +125 C compensated range covers cold-weather operation, and the ratiometric output simplifies ADC reference design for low-voltage 1S or 2S Li-Po systems where the 3 V supply can be derived from a low-dropout regulator.
おすすめ
Industrial Pneumatic Control
Industrial pneumatic controllers benefit from the MP3H6115A6U's calibrated 15-115 kPa absolute-pressure span, which covers typical low-pressure pneumatic supply (4-8 bar or about 400-800 kPa) when used with a simple resistor-divider scaling, or directly covers vacuum and low-pressure measurement. The integrated op-amp and thin-film network provide a clean analog output that is far less sensitive to EMI than discrete bridges, and the factory calibration eliminates per-board pressure trim. Mount the SOIC-8 inside a sealed enclosure with a tube fitting on the 3.3 mm port; add a small particulate filter on the inlet to keep the diaphragm clean. The -40 C to +125 C operating range handles factory-floor temperatures and the ratiometric 0.12-2.8 V output interfaces directly to industrial 24-bit sigma-delta ADCs in PLC pressure modules.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: MP3H6115A6U — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 | MP3H6115A6T1 | MP3H6115AC6U | MPXH6115AC6U | MPXH6115A6U | MP3H6115AC6T1 |
|---|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 8-SOIC (SOP-8), 7.50 mm body width | 8-SOIC (SOP-8) - same | 8-SOIC (SOP-8) - same | 8-SOIC (SOP-8) - same | 8-SOIC (SOP-8) - same | 8-SOIC (SOP-8) - same |
| Pressure Range | 15 kPa to 115 kPa | 15 kPa to 115 kPa | 15 kPa to 115 kPa | 15 kPa to 115 kPa | 15 kPa to 115 kPa | 15 kPa to 115 kPa |
| Supply Voltage | 3 V | 3 V | 3 V | 3 V | 3 V | 3 V |
| Output Voltage Range | 0.12 V to 2.8 V (ratiometric) | 0.12 V to 2.8 V | 0.12 V to 2.8 V | 0.12 V to 2.8 V | 0.12 V to 2.8 V | 0.12 V to 2.8 V |
| Calibration Grade | Standard | Standard | Alternate | Higher accuracy | Standard | Alternate |
| Shipping Format | Tube (MPQ 65) | Tape & Reel | Tube | Tube | Tube | Tape & Reel |
| Temperature Compensation | -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 |
| RoHS Status | Compliant | Compliant | Compliant | Compliant | Compliant | Compliant |
主な差別化要因
- On-chip bipolar op-amp and thin-film signal conditioning （vs Discrete piezoresistive bridge + external op-amp designs)
- Wide -40 C to +125 C compensated range out of the box （vs Discrete pressure sensor bridges)
- Ratiometric 0.12 V to 2.8 V output at 3 V supply （vs Absolute-voltage-output sensors with fixed offset)
設計ノート
Power the MP3H6115A6U from a clean, low-noise 3 V LDO whose output also serves as the ADC reference. Because the output is ratiometric to VDD, any ripple on the supply directly translates into measurement error. Place a 0.1 uF ceramic bypass capacitor within 3 mm of the VDD pin and a 1 uF to 10 uF bulk capacitor at the regulator output; avoid sharing the supply with switching loads such as motors or DC-DC converters without adequate filtering.
Route the analog output trace on the top layer directly to the ADC input, keeping it short and guarded by a ground pour on both sides. Avoid running the trace under switching signals, clock lines, or the inductor of nearby DC-DC converters. Use a star-ground topology that ties the sensor GND, ADC GND, and supply GND to a single point near the sensor to prevent ground-loop noise in the analog output.
Common pitfalls include moisture ingress into the port (which biases the reading), mechanical vibration coupling into the diaphragm (which adds noise), and using an ADC reference independent of the 3 V sensor supply (which breaks the ratiometric cancellation). Seal the port with an O-ring or sealant rated for the application; isolate the sensor from vibration with a short flexible tube section; and always derive the ADC reference from the same 3 V rail that powers the MP3H6115A6U.
コンプライアンス情報
RoHS compliant per NXP product page. AEC-Q100 status not specifically listed for the MP3H6115A6U itself; the family is widely used in automotive air-pressure subsystems. REACH compliant per standard NXP product policy.
