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- Force-Sensitive RP-C7.6-LT Thin Film Pressure Sensor DFRobot - SEN-0298
- Variable Resistor
Features
- Ultra thin flexible pressure sensor design
- Compact circular sensing area with 7.6 mm diameter
- High sensitivity pressure detection
- Fast activation and response time
- Supports static and dynamic pressure measurement
- Durable structure with long operational life
- Lightweight and easy to integrate into embedded systems
- Simple analog interface using resistance change
- Suitable for wearable devices and smart systems
Specifications
- Model: RP-C7.6-LT
- Sensor Type: Thin Film Flexible Pressure Sensor
- Sensing Area Diameter: 7.6 mm
- Thickness: 0.3 mm
- Trigger Force: 30 g (triggered when resistance less than 200 kΩ)
- Pressure Measuring Range: 30 g to 1.5 kg
- Initial Resistance: Greater than 10 MΩ
- Activation Time: Less than 0.01 seconds
- Response Time: Less than 10 ms
- Measurement Type: Static and dynamic pressure up to 10 Hz
- Operating Temperature: -40 C to 85 C
- Lifespan: More than 1 million cycles
- Hysteresis: Approximately 10 percent at 1000 g force
- Drift: Less than 5 percent at 1 kg static load for 24 hours
- EMI: Not generated
- ESD: Not generated
The RP-C series flexible pressure sensor is constructed from ultra thin film materials with excellent mechanical properties, conductive layers, and nano scale pressure sensitive materials. These layers work together to convert applied pressure into measurable resistance changes.
Sensor Structure
The sensor consists of two main thin film layers bonded together using adhesive. The upper layer contains a pressure sensitive conductive film, while the lower layer contains a conductive circuit pattern. When pressure is applied to the sensing area, the layers come into contact through the pressure sensitive material, creating a conductive path.
As the applied pressure increases, the electrical resistance between the sensor terminals decreases. This change in resistance allows the sensor to convert physical pressure into an electrical signal that can be measured using a microcontroller or analog circuit.
Sensor Dimensions

The diagram above shows the physical dimensions and structure of the RP-C7.6-LT pressure sensor, including the circular sensing area and extended flexible leads used for electrical connection.
Force vs Resistance Characteristics

The resistance of the sensor decreases as the applied force increases. This characteristic allows the sensor to be used in voltage divider circuits where the output voltage corresponds to the applied pressure.
Basic Connection
The sensor functions as a variable resistor. It is commonly connected in a voltage divider circuit with a fixed resistor. The voltage at the divider output can be measured using an analog input of a microcontroller such as Arduino or other embedded development boards to determine the applied pressure.

Applications
- Pressure switches
- Bed monitoring and occupancy detection systems
- Smart footwear and intelligent sneakers
- Medical monitoring devices
- Human interaction sensing
- Robotics touch and force sensing
- Embedded pressure detection systems
Features
- Ultra thin flexible pressure sensor design
- Compact circular sensing area with 7.6 mm diameter
- High sensitivity pressure detection
- Fast activation and response time
- Supports static and dynamic pressure measurement
- Durable structure with long operational life
- Lightweight and easy to integrate into embedded systems
- Simple analog interface using resistance change
- Suitable for wearable devices and smart systems
Specifications
- Model: RP-C7.6-LT
- Sensor Type: Thin Film Flexible Pressure Sensor
- Sensing Area Diameter: 7.6 mm
- Thickness: 0.3 mm
- Trigger Force: 30 g (triggered when resistance less than 200 kΩ)
- Pressure Measuring Range: 30 g to 1.5 kg
- Initial Resistance: Greater than 10 MΩ
- Activation Time: Less than 0.01 seconds
- Response Time: Less than 10 ms
- Measurement Type: Static and dynamic pressure up to 10 Hz
- Operating Temperature: -40 C to 85 C
- Lifespan: More than 1 million cycles
- Hysteresis: Approximately 10 percent at 1000 g force
- Drift: Less than 5 percent at 1 kg static load for 24 hours
- EMI: Not generated
- ESD: Not generated
The RP-C series flexible pressure sensor is constructed from ultra thin film materials with excellent mechanical properties, conductive layers, and nano scale pressure sensitive materials. These layers work together to convert applied pressure into measurable resistance changes.
Sensor Structure
The sensor consists of two main thin film layers bonded together using adhesive. The upper layer contains a pressure sensitive conductive film, while the lower layer contains a conductive circuit pattern. When pressure is applied to the sensing area, the layers come into contact through the pressure sensitive material, creating a conductive path.
As the applied pressure increases, the electrical resistance between the sensor terminals decreases. This change in resistance allows the sensor to convert physical pressure into an electrical signal that can be measured using a microcontroller or analog circuit.
Sensor Dimensions

The diagram above shows the physical dimensions and structure of the RP-C7.6-LT pressure sensor, including the circular sensing area and extended flexible leads used for electrical connection.
Force vs Resistance Characteristics

The resistance of the sensor decreases as the applied force increases. This characteristic allows the sensor to be used in voltage divider circuits where the output voltage corresponds to the applied pressure.
Basic Connection
The sensor functions as a variable resistor. It is commonly connected in a voltage divider circuit with a fixed resistor. The voltage at the divider output can be measured using an analog input of a microcontroller such as Arduino or other embedded development boards to determine the applied pressure.

Applications
- Pressure switches
- Bed monitoring and occupancy detection systems
- Smart footwear and intelligent sneakers
- Medical monitoring devices
- Human interaction sensing
- Robotics touch and force sensing
- Embedded pressure detection systems

