HSFPAR003A - Piezoresistive Force Sensor, SMD | Alps Alpine
料号： HSFPAR003A ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $14.5 | $14.50 |
| 10 | $13.2 | $132.00 |
| 100 | $11.85 | $1,185.00 |
| 500 | $10.4 | $5,200.00 |
| 1,000 | $9.1 | $9,100.00 |
HSFPAR003A 概述
A force sensor (also called a load cell or pressure sensor in this category) is a transducer that converts an applied mechanical force or pressure into a quantifiable electrical signal. Piezoresistive force sensors use the piezoresistive effect, where strain-induced changes in silicon resistance produce a differential voltage output proportional to applied force. Within the sensor taxonomy, the HSFPAR003A sits at: force sensor -> pressure/load sensor -> MEMS transducer -> sensor IC. It is intended for both industrial measurement and consumer-electronics integration.
Key differentiating features include the SMD mounting form factor with connector connection for system integration, the silicon-diaphragm piezoresistive bridge topology (rather than polymer or strain-gauge foil), and high linearity relative to competing polymer force-sensing technologies. The compact package enables integration into space-constrained product designs such as handheld instruments, appliance controls, and IoT edge devices where a polymer FSR would be too thick or non-linear.
Typical applications include depth-of-water detection in white goods and appliances, load/weight detection in smart kitchen scales, force feedback in game controllers and industrial HMI panels, and tactile/load sensing in robotics and medical monitoring devices. The high linearity supports direct analog read-out through an ADC, eliminating the lookup-table correction typically required for polymer FSRs.
When designing with this part, follow Alps Alpine's recommended SMD pad layout and connector-cable assembly instructions to preserve mechanical repeatability. Bridge excitation should be a low-noise regulated voltage or current source; signal conditioning with an instrumentation amplifier is recommended because the bridge output is in the millivolt range.
This page synthesizes distributor pricing, pin/connector reference, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone. Pricing references reflect distributor data as of 2026-10-14.
直接替换替代料： HSFPAR003A ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
快速对比工具——选择替代料号进行并排对比：
HSFPAR001A
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
HSFPAR002A
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
HSFPAR004A
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
HSFPAR005A
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
HSFPAR003A 最大额定值与电气特性
| 传感器类型 | Force Sensor (Piezoresistive, Load / Pressure) |
| Series | HSFPAR |
| Operating Function | Load detection, Depth of water detection |
| Mounting Method | Surface Mount (SMD) with Connector connection |
| Sensing Principle | Piezoresistive bridge on silicon diaphragm |
| Linearity Characteristic | Higher linearity vs polymer FSR force sensors |
| 输出类型 | Analog differential (bridge) |
| Package Type | SMD, Tape & Reel packaging |
| RoHS 状态 | Compliant (Alps Alpine product line policy) |
HSFPAR003A smd, tape & reel packaging 引脚配置指南
HSFPAR003A（smd, tape & reel packaging 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： HSFPAR003A.
请参阅 数据手册 以查看完整引脚配置。
典型应用
HSFPAR003A 适用于 6 应用s: Depth of Water Detection in White Goods, Smart Kitchen and Bathroom Scales, Force Feedback in Game Controllers and HMI, Tactile Sensing in Robotics, Medical Monitoring and Diagnostic Devices, Industrial Load Monitoring and IoT Edge Sensing.
Depth of Water Detection in White Goods
The HSFPAR003A's piezoresistive silicon-diaphragm bridge delivers high-linearity load measurement required for water-depth sensing in washing machines, dishwashers, and water softeners. With the SMD-with-connector package the sensor mounts directly on the appliance control PCB and couples to a pressure port, translating hydrostatic head into a millivolt-level differential bridge output. Compared with polymer FSR water-level sensors, the HSFPAR003A provides better repeatability across fill cycles and tolerates detergent chemistry that would degrade polymer sensors.
推荐
Smart Kitchen and Bathroom Scales
Consumer smart scales require high-linearity force measurement in a compact form factor that can be assembled on automated SMT lines. The HSFPAR003A's SMD-with-connector packaging supports tape-and-reel pick-and-place, while the silicon-diaphragm piezoresistive bridge eliminates the lookup-table correction required by polymer FSRs. A four-sensor HSFPAR003A platform plus an instrumentation amplifier and 24-bit ADC delivers sub-gram resolution for body-weight and ingredient-scale products in the consumer/IoT domain.
推荐
Force Feedback in Game Controllers and HMI
Modern game controllers and industrial human-machine-interface panels need compact, repeatable force-sensing elements under thumbsticks, triggers, and panel buttons. The HSFPAR003A's small SMD footprint and high-linearity piezoresistive output make it well suited to capturing thumb pressure for adaptive triggers or panel-button force grading. Its millivolt-level bridge output feeds directly into a low-noise instrumentation amplifier and on-chip ADC, with response time tuned by the mechanical coupling rather than sensor bandwidth.
推荐
Tactile Sensing in Robotics
Robotic grippers, prosthetic fingertips, and tactile skins demand small, low-mass force sensors that integrate into dense arrays without cross-talk. The HSFPAR003A's compact SMD-with-connector form factor enables array mounting on flexible or rigid carriers, while the silicon piezoresistive bridge provides the high linearity needed for grasp-force control. Each sensor is read through a multiplexed instrumentation-amplifier chain feeding an ADC, giving the robot proprioceptive feedback for object handling and delicate manipulation tasks.
推荐
Medical Monitoring and Diagnostic Devices
Medical devices such as infusion pumps, patient weighing systems, and respiratory-pressure monitors require force sensors with high linearity, repeatability, and a clean bill-of-materials. The HSFPAR003A's silicon piezoresistive technology provides medical-grade linearity and RoHS-compliant construction, while its SMD-with-connector package simplifies sterilization-friendly assembly. When paired with a low-noise instrumentation amplifier and high-resolution ADC, the HSFPAR003A supports accurate load and pressure measurements in patient-contact medical products.
推荐
Industrial Load Monitoring and IoT Edge Sensing
Industrial IoT edge nodes monitor conveyor loading, hopper fill levels, and tool wear through embedded force sensors. The HSFPAR003A's SMD-with-connector package supports conformal-coated industrial assemblies, and its silicon piezoresistive bridge output feeds an ADC and a microcontroller for local decision making before backhaul. Compared to polymer FSRs, the HSFPAR003A offers better long-term stability in dusty, temperature-cycled factory environments typical of Industry 4.0 deployments.
推荐
推荐产品汇总
工程参考数据： HSFPAR003A ——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 | HSFPAR001A | HSFPAR002A | HSFPAR004A | HSFPAR005A |
|---|---|---|---|---|---|
| Brand | ALPS Alpine | ALPS Alpine | ALPS Alpine | ALPS Alpine | ALPS Alpine |
| Package | SMD with connector (HSFPAR series) | SMD with connector (HSFPAR series) - same | SMD with connector (HSFPAR series) - same | SMD with connector (HSFPAR series) - same | SMD with connector (HSFPAR series) - same |
| Sensing Principle | Piezoresistive silicon-diaphragm bridge | Piezoresistive silicon-diaphragm bridge | Piezoresistive silicon-diaphragm bridge | Piezoresistive silicon-diaphragm bridge | Piezoresistive silicon-diaphragm bridge |
| Series | HSFPAR | HSFPAR | HSFPAR | HSFPAR | HSFPAR |
| Force Range Suffix | 003 | 001 | 002 | 004 | 005 |
| Mounting Method | Surface mount, connector connection | Surface mount, connector connection | Surface mount, connector connection | Surface mount, connector connection | Surface mount, connector connection |
| Linearity | High (silicon piezoresistive) | High (silicon piezoresistive) | High (silicon piezoresistive) | High (silicon piezoresistive) | High (silicon piezoresistive) |
| Primary Function | Load detection / Depth of water detection | Load detection (force-range variant) | Load detection (force-range variant) | Load detection (force-range variant) | Load detection (force-range variant) |
| Unit Price (qty 1, USD, as of 2026-10-14) | $14.50 | $14.50 (estimated similar tier) | $14.50 (estimated similar tier) | $14.50 (estimated similar tier) | $14.50 (estimated similar tier) |
关键差异点
- Higher linearity than polymer FSR sensors （对比 Generic polymer FSR (force-sensing resistor))
- SMD-with-connector package for automated assembly （对比 Through-hole load cell)
- Dual function: load detection AND depth of water （对比 Single-function force sensor)
设计说明
The HSFPAR003A bridge output is in the millivolt range and is therefore highly susceptible to EMI and ground-loop noise. Route the four bridge traces as a tightly-coupled differential pair with a ground plane beneath, and place the instrumentation amplifier within 10 mm of the sensor pads. Use a buffered low-noise voltage reference for bridge excitation - the Mikroe Force 4 Click reference design demonstrates this topology.
Follow Alps Alpine's recommended SMD land pattern exactly: pad geometry, solder mask, and paste apertures are tuned for the silicon-diaphragm mechanical compliance window. Deviating from the recommended footprint can concentrate solder stress on the diaphragm and shift the bridge offset. Provide a mechanical housing or gasket that transfers applied force to the active diaphragm area, not to the package edges.
Piezoresistive silicon sensors exhibit bridge-offset drift with temperature. Implement software temperature compensation using an on-board thermistor or the MCU's internal temperature sensor, and store per-unit calibration coefficients in non-volatile memory. For high-accuracy scales or depth-of-water applications, perform a two-point calibration at the operating temperature extremes.
Estimated: applying force directly to the connector side of the HSFPAR003A - rather than the active diaphragm - will produce non-linear, low-amplitude output and may permanently damage the silicon diaphragm. Always use the Alps Alpine recommended mechanical coupling (pressure pad or pusher) that distributes load uniformly across the active area. Also avoid over-travel beyond the rated force range, which can fracture the diaphragm.
合规信息
RoHS compliance inferred from Alps Alpine product-line policy; REACH, halogen-free, and conflict-minerals status not stated in the verified web data and require manufacturer confirmation.
