FlexiForce A301-25 Small Force Sensor

FlexiForce A301-25 Small Force Sensor is optimized for high volume manufacturing and ideal for embedding into products and applications.

The sensors are available in three force ranges: Low 4.4 N (0 – 1 lb), Medium 111 N (0 – 25 lb) and High 445 N (0 – 100 lb)*. The force ranges stated are approximations. The dynamic range of this small force sensor can be modified by changing the drive voltage and adjusting the resistance of the feedback resistor. This sensor is flexiforce A301-25 type.

The sensor has a force range of 0 – 25 lb. The force ranges stated are approximations. The dynamic range of this small, versatile force sensor can be modified by changing the drive voltage and adjusting the resistance of the feedback resistor.

Features :

• Small size is ideal for prototyping and integration
• Available with Enhanced Stability Series (ESS) pressure-sensitive ink for high-temperature and high-humidity environments
• Thin and flexible
• Easy to use

Specifications:

Model	A301-25
Thickness	0.203 mm
Length	25.4 mm
Width	14 mm
Sensing Area diameter	9.53 mm
Connector	2-pin Male Square Pin
Substrate	Polyester
Pin Spacing	2.54 mm

How to Adjust the Force Range:

In order to measure higher forces, apply a lower drive voltage (-0.5 V, -0.25 V, etc.) and reduce the resistance of the feedback resistor (1kΩ min.) To measure lower forces, apply a higher drive voltage and increase the resistance of the feedback resistor.

Typical Performance:

• Linearity (Error) : < ±3% of Full Scale (Line drawn from 0 to 50% load)
• Repeatability : < ±2.5% (Conditioned Sensor, 80% of Full Force Applied)
• Hysteresis : < 4.5 % of Full Scale (Conditioned Sensor, 80% of Full Force Applied)
• Drift : <5% / logarithmic time (Constant Load of 111 N (25 lb))
• Response Time : < 5 µsec (Time required for the sensor to respond to an input force; Impact load – recorded on Oscilloscope)
• Operating Temperature : -40°C – 60°C (-40°F – 140°F)
• Acceptance Criteria : ± 40% sensor-to-sensor variation
• Durability: ≥ 3 million actuations (Perpendicular load, room temperature, 22 N (5 lb))
• Temperature Sensitivity : 0.36%/°C (± 0.2%/°F) (Conductive heating)

Applications

• Testing and Measurement Equipment
• Embedded Electronics
• OEM Development Kit
• Consumer Electronics
• Multimeter

Package Includes:

• 1 x FlexiForce A301-25 Force Sensor

Useful Links:

• FlexiForce A301 Datasheet