{"title":"Force Sensitive Resistor - Small","handle":"force-sensitive-resistor-small","url":"/products/force-sensitive-resistor-small","description":"A compact force sensitive resistor (FSR) from Interlink Electronics with a 4 mm (0.16″) diameter active sensing area. The resistance changes based on applied pressure — from over 1 MΩ with no pressure down to approximately 2.5 kΩ at full force — making it easy to detect touch, squeeze, and weight in your projects.\n\nThe two pins have standard 0.1″ pitch spacing, so the sensor plugs directly into a breadboard for quick prototyping. While not precise enough for accurate weight measurement, FSRs are excellent for detecting the presence and relative intensity of pressure.\n\nKey Features\n\n\n4 mm Active Area – Compact circular sensing surface\n\nVariable Resistance – >1 MΩ (no pressure) to ~2.5 kΩ (full pressure)\n\nBreadboard Friendly – 0.1″ pitch pins for easy prototyping\n\nSimple Interface – Works as a variable resistor in a voltage divider circuit\n\n\nSpecifications\n\n\nSensing Area – 4 mm (0.16″) diameter\n\nResistance Range – >1 MΩ (no force) to ~2.5 kΩ (full force)\n\nPin Pitch – 0.1″ (2.54 mm)\n\nManufacturer – Interlink Electronics\n\n\nIdeal For\n\nTouch and squeeze detection in interactive projects\nPressure-sensitive triggers and inputs\nWearable electronics and soft robotics\nArduino and microcontroller sensor projects\n\n\n\nNote: FSRs are great for detecting relative pressure but are not suitable for precise weight measurement.\n","vendor":"SparkFun","product_type":"physical","in_stock":true,"options":[],"variants":[{"id":13808,"title":"Default Title","sku":"SF-SEN-09673","price":24.06,"on_sale":false,"in_stock":true,"available_quantity":245,"option1":"Default Title"}]}