Pressure Measurement Sensors and Rugged Touchpads

Pushing the Boundaries of Force Sensing

Interlink Electronics' signature line of Force Sensing Resistors^® (FSR) are now available with even greater sensing ranges, giving engineers and product designers access to more potential applications than ever before. The FSR UX 400 line of sensors can detect and measure pressure from 0.5 N to 150 N while operating solo or as part of an array. A dependable workhorse, the robust two-wire sensor can withstand millions of actuations and operate in harsh, messy environments and under extreme temperatures, making it a great option for industrial, medical, or automotive applications. Leveraging our 35 years of experience, Interlink's in-house team can work with clients to create custom sensing solutions that incorporate the FSR UX.

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Key Features:

Enhanced dynamic sensing range spans from 0.5 N to 150 N
Able to withstand millions of actuations
Improved linearity
Ultrathin form factor
Customizable for a wide range of applications
Cost effective and easy to integrate

Actuation Force
- 0.5N min
Force Sensing Range
- 0.5N – 150N
Force Repeatability Single Part
- ±2%
Force Repeatability Part to Part
- < 4% log10(time)
No-Load Resistance
- >10 MΩ
Hysteresis
- +5% (RF+ – RF-)/RF+
Long Term Drift at 1kg for 35 days
- < 3% log₁₀(time)

*NOTES

The specifications are derived from average measurements taken at 5000 grams and are given as (one standard deviation/mean), unless otherwise noted. Measurement is dependent on actuation interface, mechanics, and measurement electronics.
The test was performed using FSR UX^TM402 design.

Operating Temperature Performance

Cold: -25°C after 1 hour
- +1% resistance change
Hot: +85°C after 1 hour
- +3% resistance change

Storage Temperature Performance

Cold: -40°C after 120 hours
- +1% resistance change
Hot: +85°C after 120 hours
- +3% resistance change

Thermal Shock

@85°C to -40°C, 20 Cycles
- +13% resistance change

Tap Durability

Tested to 10 million actuations @1kg, 4Hz
- -10% resistance change

Standing Load Durability

2.5kg for 24 hours
- -3% resistance change

*NOTES

The specifications are derived from average measurements taken at 5000 grams and are given as (one standard deviation/mean), unless otherwise noted. Measurement is dependent on actuation interface, mechanics, and measurement electronics.
The test was performed using FSR UX^TM402 design.

Work with our team of experts to customize Interlink's FSR X sensors for almost any application you can imagine. Our host of in-house competencies—including materials science, hardware engineering, software and firmware engineering, and manufacturing—gives us the ability to assist and advise from design to delivery. Here are just a few of our specialties: