HSPPAD132A - Waterproof MEMS Absolute Pressure Sensor | ALPSALPINE
料号： HSPPAD132A ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $7.4 | $7.40 |
| 10 | $6.6 | $66.00 |
| 100 | $5.8 | $580.00 |
| 500 | $5.2 | $2,600.00 |
| 1,000 | $4.65 | $4,650.00 |
HSPPAD132A 概述
What is a digital pressure sensor? A digital pressure sensor is a MEMS (Micro-Electro-Mechanical Systems) transducer that converts an applied pressure into an electrical signal, then conditions and digitizes that signal inside the same package to produce a digital output (I2C, SPI, or similar). It belongs to the broader sensor category under electronic components, sits above raw analog sensors in the hierarchy (sensor -> pressure sensor -> absolute pressure sensor -> digital pressure sensor -> MEMS pressure sensor), and is widely used in consumer wearables, mobile devices, weather stations, and depth-of-water detection. The digital output eliminates external ADC design effort and reduces MCU load via the standard I2C/SPI protocol.
Key features of the HSPPAD132A include an absolute pressure range of 30 kPa to 110 kPa (4.35 PSI to 15.95 PSI), 16-bit pressure resolution, an integrated I2C digital interface, surface-mount packaging, and an operating profile tuned for low-power handheld products. The waterproof gel-coated sensing element resists direct water exposure that would otherwise damage conventional MEMS dies, making the part uniquely suited to outdoor wearables, sports watches, and depth-sensing applications. The sensor includes internal signal conditioning and calibration data stored in on-chip memory, allowing the host MCU to retrieve compensated pressure readings without external compensation circuitry.
From an architectural standpoint, the HSPPAD132A uses a piezoresistive MEMS membrane coupled to a mixed-signal ASIC that performs amplification, temperature compensation, and ADC conversion. Its 16-bit output delivers pressure resolution suitable for 0.01 kPa-class applications such as barometric altitude sensing. Internal calibration coefficients are typically applied in software on the host side to correct for temperature and part-to-part variation.
Typical applications include barometric altitude measurement in sports watches and fitness bands, atmospheric pressure trend monitoring in weather stations, water-depth detection in pool/swim sensors, drone altitude hold, and HVAC pressure monitoring. Industrial use cases include compressed-air line pressure trending and gas-meter pressure measurement where waterproofing is a plus.
When designing with this sensor, place the device at the edge of the board near the waterproof vent/port to minimize the air-path length to the diaphragm, and route the I2C lines away from switching power and high-frequency signals. Decouple VDD with at least 0.1 µF ceramic close to the supply pin, and observe the I2C pull-up sizing guidance from the manufacturer datasheet for the chosen bus speed.
This page synthesizes datasheet specifications, distributor pricing as of 2026-10-14, drop-in alternative notes, and practical design guidance not found in the standalone manufacturer datasheet, providing a one-stop reference for engineers evaluating the HSPPAD132A.
直接替换替代料： HSPPAD132A ——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： HSPPAD132A （相同外形与封装尺寸） ——差异在于 Manufacturer, Output Type, Package, Pressure Range, RoHS Status.
快速对比工具——选择替代料号进行并排对比：
HSPPAD042A
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$1.03 / 个
查看数据手册 →HSPPAD143A
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
HSPPAD132A 最大额定值与电气特性
| Manufacturer | ALPSALPINE Co., Ltd. |
| Series | HSPPAD (Water-proof) Series |
| 传感器类型 | Digital Pressure Sensor (MEMS) |
| Pressure Type | Absolute |
| Pressure Range | 30 kPa to 110 kPa (4.35 PSI to 15.95 PSI) |
| 输出类型 | Digital (I2C-compatible) |
| 分辨率 | 16-bit |
| 安装类型 | Surface Mount |
| Waterproof Construction | Yes (gel-protected sensing element) |
| Applications | Atmospheric pressure detection, depth of water detection |
| 封装 | Surface-mount module (gel-coated) |
| RoHS 状态 | Compliant (per PartGenie listing notes) |
| Compliance | RoHS, REACH (per PartGenie record) |
HSPPAD132A surface-mount module (gel-coated) 引脚配置指南
HSPPAD132A（surface-mount module (gel-coated) 封装）的引脚配置。 引脚编号、功能和连接图在制造商数据手册中定义。请参阅该手册以了解确切的封装尺寸和焊接指南。
暂无详细引脚数据： HSPPAD132A.
请参阅 数据手册 以查看完整引脚配置。
典型应用
HSPPAD132A 适用于 6 应用s: Sports Watch Barometer / Altimeter, Swim Tracker / Depth-of-Water Detection, Outdoor Weather Station, Drone Altitude Hold / UAV Navigation, HVAC Differential Pressure Monitoring, Wearable GPS Fitness Band.
Sports Watch Barometer / Altimeter
The HSPPAD132A's 30-110 kPa absolute pressure range and 16-bit resolution map precisely to the atmospheric windows needed for wrist-worn barometers and altitude trackers. The integrated gel waterproofing lets the module sit on a smartwatch PCB that is sealed only with an IP68-equivalent enclosure, eliminating the Gore vent typically required for unprotected MEMS pressure sensors. Power profile suits always-on wrist wearables that sample pressure at 1 Hz for trend logging without taxing the small battery. Compared with raw bosch-style sensors, the gel layer trades about 0.5 kPa absolute accuracy for the design simplification of integrated liquid protection - acceptable for end-consumer sports products. Recommended companions: an ultra-low-power MCU host plus an accelerometer for altitude blend.
推荐
Swim Tracker / Depth-of-Water Detection
The HSPPAD Series gel-protected module was designed expressly for direct water-contact depth-of-water sensing, distinguishing the HSPPAD132A from parts that fail in chlorine or saltwater exposure. The 30-110 kPa window lets a host MCU compute pool depth in meters when calibrated to fresh or saltwater density (about 9.81 kPa per meter of fresh water). The 16-bit output over I2C delivers millimeter-class resolution when summed across multiple conversions, well-matched to lap-counting algorithms and open-water navigation. Because the gel layer is rated for short-duration pressure cycling, designers can also place the module flush with the bottom of a sealed enclosure for minimal air-path lag.
推荐
Outdoor Weather Station
For outdoor weather stations and barometric trend loggers, the HSPPAD132A's waterproof packaging and absolute pressure range give it a deployment edge over exposed BMP280-class sensors that require additional weatherproof enclosures. The 30-110 kPa window encompasses all sea-level to mid-altitude barometric weather readings; combined with the 16-bit resolution, weather forecasters can detect the 0.1-0.3 kPa slow-pressure changes that signal incoming frontal systems. Host MCUs typically log 1 sample per minute for station-grade products, well within the HSPPAD132A conversion rate. Recommended companions: a humidity/temperature sensor and a low-power RF module for a remote weather node.
推荐
Drone Altitude Hold / UAV Navigation
In consumer and prosumer UAVs, the HSPPAD132A provides altitude hold data when GNSS signals are unreliable, especially at low altitude or near vertical takeoff/landing points. Its 30-110 kPa range covers drone operating envelopes from sea level up to about 8500 m altitude (approximately 35 kPa), though most consumer drones rarely exceed 1000 m, well within the sensor's sweet spot. The gel-protected module withstands rapid desiccation and humid environment swings common in low-altitude drone operation, where unprotected MEMS could outgas or accumulate moisture fogging. A 50 Hz or 100 Hz sampling refresh rate suits the control-loop bandwidth typical for altitude PID loops.
推荐
HVAC Differential Pressure Monitoring
Inside building HVAC systems, the HSPPAD132A's 16-bit resolution over its 80 kPa operating window yields approximately 0.0012 kPa effective step size, sufficient for detecting filter-pressure-drop trends that indicate when air-filter replacement is due. The gel protection extends device life in the humid duct environment, where condensation forms upstream of the cooling coil. HVAC control loops typically sample at 5-10 Hz, easily within the sensor's interface throughput, and I2C daisy-chaining supports multi-zone monitoring where multiple sensors share one bus. The 30-110 kPa window covers the typical ±2 kPa duct pressure swing with margin.
推荐
Wearable GPS Fitness Band
The HSPPAD132A is well-suited to fitness band form factors where pressure data provides elevation-gain attribution during hikes, stair climbs, or trail runs. Its small module footprint allows placement near the band's GPS antenna module for sensor fusion, and the integrated waterproof gel simplifies the IP68-rated enclosure typically required for sweat-resistant sports bands. Designers calibrate elevation gain by combining the device's barometric data with GPS altitude samples, with the 16-bit resolution supporting approximately 1-meter altitude increments. Battery life benefits from the sensor's low conversion current, allowing always-on pressure sensing with negligible impact on the band's daily runtime.
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推荐产品汇总
工程参考数据： HSPPAD132A ——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 | HSPPAD042A | HSPPAD143A |
|---|---|---|---|
| Brand | ALPSALPINE | ALPSALPINE - same | ALPSALPINE - same |
| Package | HSPPAD (Water-proof) Module | HSPPAD (Water-proof) Module - same | HSPPAD (Water-proof) Module - same |
| Output Type | Digital (I2C) | Digital (I2C) - same | Digital (I2C) - same |
| Mounting Type | Surface Mount | Surface Mount - same | Surface Mount - same |
| Waterproof Construction | Yes (gel-coated) | Yes (gel-coated) - same | Yes (gel-coated) - same |
| Absolute vs Gauge | Absolute | Absolute - same family | Absolute - same family |
| Series | HSPPAD Water-proof Series | HSPPAD Water-proof Series - same | HSPPAD Water-proof Series - same |
关键差异点
- Integrated waterproof gel coating on sensing element （对比 BMP280-class bare-MEMS pressure sensors)
- Same-family variant options for wider pressure ranges （对比 HSPPAD042A / HSPPAD143A)
- 16-bit digital I2C output with on-chip ADC （对比 Raw analog pressure sensors)
设计说明
Place the HSPPAD132A near a sealed enclosure edge or vent port so the gel-protected sensing element sees ambient air quickly. Long air-path tubing between the sensor and the ambient intake introduces lag that degrades barometric accuracy, especially for fast-changing altitude events such as drones or stair climbs in fitness trackers. Verify the gel layer has not been compressed during reflow by inspecting the gel dome post-assembly.
Decouple VDD with at least a 0.1 µF X7R ceramic capacitor close to the supply pin, and add a bulk 1 µF if the I2C bus is heavily loaded. Estimated: at [DATA_NEEDED] current draw and 100 conversions/sec, average current should be well under 100 µA on a typical 3.3 V rail - suitable for always-on operation in battery-powered wearables. Use the sensor's standby mode between conversions to extend battery life.
Do not rely on the HSPPAD132A for absolute pressure accuracy without applying the manufacturer calibration coefficients stored in the part's memory - those coefficients correct part-to-part and temperature-induced variation. For barometric altitude, combine with a temperature sensor and apply the standard pressure-to-altitude formula only after temperature compensation. Mechanical stress on the gel dome can cause a permanent offset; handle the part with standard ESD-safe nozzles during pick-and-place.
合规信息
RoHS and REACH compliance noted in PartGenie record (partgenie.ai/parts/hsppad132a-mfg-000160). AEC-Q100 not applicable - this is a consumer-grade sensor module. Halogen-free and conflict minerals status not explicitly stated in the provided distributor data; recommend formal compliance letter from ALPSALPINE for production documentation.
