0.5" Circular Force Sensor (100g-10kg)

Force Sensitive Resistor 0.5" is a compact pressure‑sensing component designed to convert physical force into measurable resistance changes. This round‑pad force detection sensor features a 0.5" diameter active area that responds dynamically to touch, squeeze, or weight. As applied force increases, electrical resistance decreases, enabling simple analog pressure detection in interactive electronics and embedded systems. With a sensing range of approximately 100g to 10kg, this thin-film pressure sensor supports responsive input detection for robotics, wearable interfaces, and experimental electronics where proportional force feedback is required.

Dynamic Resistance Response to Applied Pressure

This pressure‑sensitive resistor operates using a conductive polymer layer that changes resistance under mechanical stress. When no pressure is present, resistance typically exceeds 1MΩ, while increasing force gradually lowers resistance across the sensing region. Such behavior allows this tactile force sensing element to detect varying levels of pressure rather than simple on/off contact. The design supports interactive systems that react to squeezing, pressing, or weight distribution, making the component well suited for responsive control interfaces and experimental force‑measurement projects.

Breadboard-Friendly Electrical Connection

This thin force detection module includes two conductive pins extending from the base with a standard 0.1" pitch. Such spacing allows direct insertion into solderless breadboards, simplifying rapid prototyping and circuit testing. The straightforward two‑terminal interface allows integration into voltage divider circuits for analog signal reading by common microcontrollers or data acquisition systems. This convenient pin layout reduces wiring complexity and accelerates integration when developing touch‑responsive electronics, embedded prototypes, or educational sensing demonstrations.

Flexible Mounting with Adhesive Backing

A peel‑and‑stick rubber adhesive layer is integrated on the rear side of the sensing pad, allowing the pressure detection film to be mounted directly onto surfaces or embedded into mechanical structures. This flexible mounting capability enables installation beneath buttons, within wearable designs, or under soft materials where force distribution must be monitored. The adhesive backing stabilizes the sensing surface during repeated interaction while maintaining the thin, lightweight profile required for compact electronic assemblies.

This compact force sensing component supports a wide range of interactive applications where pressure detection is required but precise weight measurement is unnecessary. Typical uses include squeeze‑activated controls, pressure‑responsive gaming interfaces, robotic grip detection, and experimental tactile feedback systems. The simple electrical interface and flexible mounting design make this sensing resistor a practical solution for prototypes, educational electronics, and creative human‑machine interaction projects.