Circular Membrane Piezoresistive Pressure Sensor

Main Features:

This series of circular thin‑film piezoresistive pressure sensors (Force Sensing Resistors, FSRs) is a flexible force‑sensitive sensing element based on the piezoresistive effect, fabricated using an advanced composite process that combines an ultra‑thin polymer film with nano‑conductive materials. In the absence of external force, the sensor exhibits a high‑impedance state; when pressure is applied, conductive pathways in the sensitive area are activated, and the resistance decreases as pressure increases, enabling linear conversion of mechanical pressure into an electrical signal. Featuring ultra‑thin flexibility, rapid response, and low power consumption, these sensors can be seamlessly adhered to both flat and curved surfaces without complex mounting, making them an ideal solution for pressure sensing, touch‑based interaction, and condition monitoring in a wide range of smart devices.

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Category:

Varistors

Keyword: Circular Membrane Piezoresistive Pressure Sensor

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Key Features

Ultra-thin flexible design : With a thickness of less than 0.3 mm, it can be bent to conform to curved surfaces, making it ideal for tight spaces and irregular mounting applications without compromising the device’s appearance or tactile experience.
High sensitivity and fast response It can respond to minute pressures as low as 0.1 N, with a response time of less than 5 ms, enabling real-time capture of pressure changes for precise touch control and pressure sensing.
Wide measurement range and stable linearity : Stable pressure–resistance characteristics, supporting multi-range customization and accommodating diverse sensing requirements such as tactile touch, pressing, and sustained load.
Low-Power Passive Design : Passive components that operate without external power and feature ultra-low standby power consumption, making them ideal for battery-powered portable devices and smart wearables.
High reliability and long lifespan : Tested through one million press cycles, it exhibits excellent bend resistance and aging resistance, meeting the stability requirements for long-term continuous operation.
Easy integration with low circuit costs : Signal acquisition can be achieved with a simple voltage divider circuit, eliminating the need for complex signal conditioning and enabling rapid integration into various MCU-based control systems.
Environmental Compliance and Customization : Compliant with RoHS and REACH environmental standards, and supports customized options for package dimensions, sensing‑area diameter, and pin configuration.

Typical application scenarios

Consumer electronics sector : Heart-rate monitoring assistance for smart wearables (bracelets, watches), pressure sensing in styluses, and force feedback for game controller buttons.
Smart home sector : Smart mattress / sofa pressure distribution sensing, smart appliance touch controls, door and window status sensing, human presence detection.
Industrial control field : Device key‑press force measurement, tooling fixture pressure monitoring, automated equipment contact‑state detection, and robotic gripper force feedback.
Healthcare sector : Monitoring of rehabilitation training intensity, detection of contact pressure in medical devices, and testing of pressure distribution in gait-analysis insoles.
Other scenarios : Velocity sensing in electronic musical instruments, pressure detection in automotive seats, interactive control of smart toys, and touch‑based human–machine interface sensing.

Technical Specifications

Structural configuration: circular sensing area + flexible thin-film substrate + metal through-hole leads
Sensitive area diameter: standard φ10mm (other sizes available upon request)
Thickness: <0.3 mm
Operating pressure range: Standard 0–100 N (customizable range available upon request)
Initial resistance (unloaded): >10 MΩ
Full-scale resistance (typical): 1–10 kΩ (depending on the range)
Response time: <5 ms
Repeatability: ±10% FS (typical)
Operating temperature range: -20°C to +60°C
Storage temperature range: -30°C to +70°C
Base material: Flexible polymer film
Environmental Compliance: Compliant with RoHS and REACH standards; lead-free manufacturing process.

Customized Services

We offer end-to-end customized services and, based on your application scenarios and design requirements, can provide the following tailored solutions:

Customizable sensitivity zone diameter, external dimensions, and substrate thickness to suit various installation spaces.
Directional optimization of the pressure range and sensitivity curve to meet the detection accuracy requirements of specific application scenarios.
Customizable pin configurations, lengths, and pitch options; supports multiple connection methods, including through-hole, surface-mount, and flexible ribbon cables.
We offer mass production and rapid delivery services, along with comprehensive technical support, product selection solutions, and test reports, helping customers efficiently develop pressure‑testing capabilities for their products.

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