DFRobot
RP-C18.3-LT Thin Film Pressure Sensor
The RP-C18.3-LT is a circular flexible thin-film pressure sensor, 18.3mm in diameter, designed for highly sensitive detection of both static and dynamic forc...
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The RP-C18.3-LT is a circular flexible thin-film pressure sensor, 18.3mm in diameter, designed for highly sensitive detection of both static and dynamic force. When pressure is applied to the active area, resistance decreases proportionally — making it straightforward to interface with a microcontroller's ADC for pressure or force measurement.
Ultra-thin at 0.4mm, it's flexible enough for embedding in wearables, medical devices, footwear, and bed monitoring systems, while remaining durable for over one million actuation cycles.
Specifications
- Active Area Diameter – 18.3mm
- Thickness – 0.4mm
- Pressure Range – 20g to 6kg
- Trigger Force – 20g (initial resistance drops below 200kΩ)
- Initial Resistance – >10MΩ (unloaded)
- Activation Time – <10ms
- Response Time – <10ms
- Dynamic Pressure – Up to 10Hz frequency
- Drift – <5% at 2.5kg static load over 24h
- Hysteresis – ±10% at 1000g
- Operating Temperature – −40°C to +85°C
- Lifespan – >1 million actuations
- EMI/ESD – None generated
Ideal For
- Pressure switches and touch detection
- Smart footwear and wearable force sensing
- Bed and chair occupancy monitoring systems
- Medical device pressure measurement
- Robotics gripper feedback and tactile sensing
Package Contents
- 1× RP-C18.3-LT Thin Film Pressure Sensor
Resources
Jargon buster
Plain-language definitions for the technical terms used above.
- ADC
- An analogue-to-digital converter reads a changing voltage and turns it into a number the microcontroller can use. It matters when connecting analogue sensors such as light, sound, or variable-resistor sensors.
- microcontroller
- A microcontroller is a small computer on a single chip that runs a stored program and controls connected inputs and outputs such as buttons, sensors, displays and communication interfaces. In a device built around one, it is the part that executes the code and coordinates the device's behaviour.
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Brands
Sensors & Input
Supplier page — dfrobot.com
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