Ultra-Thin Circular Flex Force Sensor (0.45mm, 20g-6kg Range, 120C High-Temp Resistance)

Engineered for rigorous environments, this graphene-based Circular Flex Force Sensor delivers high-precision pressure detection with distinct advantages over standard FSRs. The device stands out with its ability to withstand temperatures up to 120°C and its support for direct soldering, ensuring permanent, secure connections where traditional connectors fail. Featuring a linear sensing range of 20g to 6kg, a response time under 1ms, and a lifespan exceeding 10 million cycles, it offers the reliability required for advanced robotic tactile sensing, industrial automation, and automotive electronics.

High-Temperature Stability up to 120°C

Unlike conventional pressure sensors that degrade under thermal stress, the graphene-based unit maintains stable operation in temperatures ranging from -40°C to +120°C. This thermal resilience makes the high-temperature pressure sensor particularly suitable for automotive engine bays, industrial machinery monitoring, and other environments where standard FPC sensors typically fail. The material composition ensures consistent data acquisition even during prolonged exposure to elevated heat.

Precision Linear Output and Rapid Response

The thin-film force sensor offers a wide detection range, accurately perceiving pressures as light as 20g and as heavy as 6kg. Crucially, the resistance changes linearly with applied pressure, which significantly reduces the complexity of the algorithms required for data interpretation. Coupled with an activation time of less than 0.01 seconds and a response latency under 1ms, the tactile component allows for real-time feedback systems, essential for high-speed precision control in robotics and interactive interfaces.

Exceptional Mechanical Durability

Reliability remains a core feature of the design, with the flexible sensor tested to withstand over 10 million mechanical presses (at 1kg force). This longevity ensures that the force-sensitive resistor functions reliably in high-frequency use cases, such as industrial counting systems, anti-touch switches, and pressure-sensitive buttons. The robust construction minimizes maintenance requirements and extends the operational life of the host equipment.

Ultra-Thin Integration with Direct Soldering

Measuring only 0.45mm in thickness, the flexible module integrates seamlessly into compact spaces without altering the mechanical profile of the device. A distinct advantage of this specific model is the support for direct soldering. While many membrane sensors require specific connectors that can loosen over time, this high-temp sensor allows for permanent, secure wire connections, ensuring signal integrity in vibrating or mobile applications like wearable electronics or moving robot limbs.

Dimension Diagram

Pressure-Resistance Curve

Typical Application Circuit (Series 2KΩ Resistor for Voltage Division Sampling)

Applications:

• Robotics: Gripper force feedback, tactile skin for humanoid robots.
• Automotive: Seat occupancy detection, heated surface pressure monitoring.
• Industrial: Safety switches in high-temp machinery, fluid level monitoring (pressure based).
• Interactive Interfaces: Pressure-sensitive touch panels, electronic musical instruments.

Specification:

• Thickness: 0.45 mm
• Actuation Force: 20g
• Pressure Range: 20g ~ 6 kg
• Resistance at Actuation (20g): 200 kΩ
• Resistance at Full Scale (6kg): 1 kΩ
• Response Time: 1 ms
• Operating Temperature: -40 °C ~ +120 °C
• Durability: > 10 million cycles (1 Kg force, flexible press)
• Activation Time: 0.01 S

Product Includes:

• Circular Flexible Potentiometer x1