LP-FP Series – Conductive Plastic Linear Potentiometer
- green5177
- Apr 3, 2024
- 1 min read
Updated: Oct 17, 2024

The LP-FP series is an ultra-fine linear potentiometer with a diameter of Φ8mm (Φ0.314in) and Φ12mm (Φ0.472in). It is applied in various fields, ranging from electron microscopes and other laboratory equipment and instruments, machining tools to animatronics used in amusement parks and film productions.
Since the output resolution of LP-FP series is virtually infinite due to the contact mechanism, it is able to measure very small distance. The electrical stroke of the standard LP-FP series is 20mm (0.787in) ~ 30mm (1.181in). Up to 100mm (3.937in) electrical stroke is available upon request.
It is recommended for installation in tight spaces or if you are considering to miniaturize your current product design.
LP-FP Series Specifications
Model Number: | LP-20FP | LP-30FQJ |
Effective Electrical Travel: | 20mm (0.787in) | 30mm (1.181in) |
Total Resistance: | 1KΩ | 1KΩ |
Independent Linearity: | ±1%FS | ±1%FS |
Rated Dissipation: | 0.6W/70℃ | 0.9W/70℃ |
Housing Diameter | Φ12mm (Φ0.472in) | Φ8mm (Φ0.314in) |
Friction | 0.4N MAX. | 0.3N MAX. |
Weight | Approx. 18g | Approx. 15g |
LP-FP Features
Ultra-fine Housing Diameter
The housing diameter is Φ8mm* or Φ10mm. It is able to install in narrow places.* Φ8mm housing diameter version is LP-30FQJ (30mm stroke) only.

Low Shaft Friction
Shaft friction is as low as 0.3 to 0.4N, and it provides smooth and detailed distance measurement.

LP-FP Series Application Examples

Laboratory/ Medical Equipment | Electron Microscope: Stage positioning Muscle Hardness Meter: Cylinde Stroke |
Infrastructure | Ground Displacement Meter: Underground displacement measurement |
Industry | Packaging Machine: Stage positioning/ Arm Stroke Machining Tool: Cutting position/ Stage positioning |
Amusement Park | Animatronics: Actuator stroke Ride Attractions |