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Ohmite FSP Force Sensing Capacitive Touch Potentiometers

Ohmite FSP Force Sensing Capacitive Touch Potentiometers are high-feature-set, cost-effective touch sensors that enable intuitive control and navigation. The “single touch” devices simultaneously report both touch position and variable force. These potentiometers offer easy integration, high resolution, and low power with simple interfacing via a host processor without the need for a dedicated MCU. FSPs are dynamically reconfigurable in firmware enabling multiple functions from a single sensor. The FSP Force Sensing Capacitive Touch Potentiometers from Ohmite are ideal for a wide range of Human Machine Interface (HMI) and MMI applications.

Features

  • Simultaneously report both touch position and variable force
  • Enables intuitive control and navigation
  • Reconfigurable in firmware, enabling multiple functions from a single sensor
  • Through-mode sensor construction
  • Small, thin, and light
  • Largely immune to EMI and water events
  • Low power
  • False touch rejection
  • Cost-effective
  • Highly durable (>10M activations typical)
  • Button sensor type
  • Single-channel
  • RoHS compliant

Specifications

  • <20g actuation force
  • Up to 1kg force range
  • Part repeatability
    • 5% single, 100 actuations of 1kg
    • ±10% part-to-part, 100 sensors same batch
  • <2% long term drift, 1kg for 48hrs
  • 5% hysteresis
  • Thru mode
  • Temperature ranges
    • -20°C to +60°C operating
    • -20°C to +85°C storage for 250hrs
  • 0.375mm thickness
  • 0.25mm trace width
  • 0.50mm trace pitch
  • 0.125mm spacer height

Dimensions

Ohmite FSP Force Sensing Capacitive Touch Potentiometers

Additional Resources

Veröffentlichungsdatum: 2018-06-21 | Aktualisiert: 2022-10-03