Attributes

Brand	-
Category	Robotics / STEM Teaching Tools / Sensors
Origin	-
Sensor Type	Resistive Thin-Film
Active Area Diameter	12.7 mm (0.5 inch)
Force Range	0 to 10 kg (approx. 22 lbs)
Thickness	< 0.45 mm
Operating Temperature	-40°C to +85°C
Interface	Analog Resistance Output
Substrate Material	Flexible Polyester (PET)
Termination Style	0.1 inch Pitch PCB Tail
Response Time	< 10 microseconds
Typical Application	Robotics, HMI, Medical Devices

6 reviews

Anonymous

Mar 30, 2026

Rating: 5/5

Reliable and durable

I have been cycling these sensors thousands of times in a prototype keyboard switch, and they show no signs of degradation. The build quality is excellent for the price point.

Anonymous

Mar 23, 2026

Rating: 5/5

Consistent performance batch to batch

Ordered fifty units for a production run. The variance between individual sensors is minimal, which saved us a lot of time on individual unit calibration. Excellent product.

Anonymous

Mar 22, 2026

Rating: 4/5

Good value for rapid prototyping

Fast shipping and the sensors arrived in perfect condition. They are ideal for proof-of-concept designs. The resistance drop is smooth, making analog reading straightforward.

Anonymous

Mar 10, 2026

Rating: 5/5

Essential for our competition bot

We used these for our line-following robot's bumpers. They detect contact instantly and are much more robust than mechanical switches. Highly recommended for student projects.

Anonymous

Mar 07, 2026

Rating: 5/5

Perfect for robotic gripper feedback

These sensors are incredibly responsive and easy to integrate into my Arduino-based robotic arm project. The force curve is consistent, allowing for precise pressure control when handling delicate objects.

Anonymous

Mar 03, 2026

Rating: 4/5

Great sensitivity, needs calibration

The module works exactly as described. It is very thin and flexible, fitting perfectly into tight spaces. Just note that you will need to write a calibration routine in your code to get linear readings across the full range.

5 FAQ

Q: Can this sensor be used directly with a 5V microcontroller without extra components?

A: The FSR402 is a variable resistor. To interface it with a 5V microcontroller, you typically need to create a voltage divider circuit using a fixed pull-down or pull-up resistor (usually 10kΩ) to convert the resistance change into a readable voltage.

Q: How does temperature affect the reading?

A: Like most resistive sensors, there is a slight temperature coefficient. For applications requiring high precision across wide temperature swings, we recommend implementing software compensation based on the operating environment data provided in the datasheet.

Q: Can I cut the sensor to make it smaller?

A: No, you should never cut the active area of the FSR402. Cutting the polymer layers will destroy the circuitry and render the sensor non-functional. You can only trim the non-active polyester tail if necessary for cable management.

Q: What is the maximum force this sensor can withstand before breaking?

A: While the effective sensing range is up to 10 kg, the sensor can physically withstand significantly higher forces. However, exceeding the rated range may result in non-linear readings or potential long-term drift. We recommend staying within the 0-10 kg range for optimal accuracy.

Q: Is the tail connector compatible with standard breadboards?

A: Yes, the termination tail has a 0.1 inch (2.54 mm) pitch, which is standard for most solderless breadboards and 0.1 inch header connectors.

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