SCF3300
High-sensitivity MEMS force sensor for touch and pressure measurement applications
Product Overview
Description
The SCF3300 is a high-sensitivity MEMS force sensor designed for touch interfaces and pressure measurement applications. It features a wide force range of 0-10N with high resolution for detecting subtle touch inputs.
With excellent linearity (±1% FS) and low hysteresis, the SCF3300 provides accurate force measurement for user interface applications. The sensor responds quickly to force changes with a response time of less than 1ms.
The device supports I2C interface for easy integration with microcontrollers. Ultra-low power consumption (1μA in sleep mode) makes it ideal for battery-powered devices. Available in a compact QFN-16 package suitable for slim designs.
Product Series
SCF
Primary Application
Touch interfaces
Key Features
- Wide force range: 0-10N
- High sensitivity: 100mV/N
- Excellent linearity: ±1% FS
- Low hysteresis: <0.5% FS
- Fast response time: <1ms
- Ultra-low power consumption
- I2C interface support
- Compact 3mm x 3mm package
Specifications
| Force Range | 0-10N |
|---|---|
| Sensitivity | 100mV/N |
| Resolution | 12-bit |
| Linearity | ±1% FS |
| Hysteresis | <0.5% FS |
| Response Time | <1ms |
| Interface | I2C |
| Operating Current | 10μA (active), 1μA (sleep) |
| Operating Temperature | -20°C to +70°C |
| Package | QFN-16 (3mm x 3mm) |
Applications
Touch interfaces
Communication and interface
Button replacement
Electronic system design
Weight measurement
Data acquisition and conversion
Pressure sensing
Electronic system design
User input devices
Electronic system design
FAE Expert Insights
"The SCF3300 is an excellent force sensor for touch interface applications. The high sensitivity allows detection of very light touches, while the wide 10N range handles firm presses. I have used this sensor in several smartphone and wearable projects. The linearity of ±1% FS is impressive for a MEMS force sensor - it provides consistent response across the entire force range. The low hysteresis ensures that press and release forces are consistent, which is important for user experience. The ultra-low power consumption is a key advantage for battery-powered devices - 1μA in sleep mode means you can leave it always-on for wake-on-touch functionality. One implementation tip: proper mechanical coupling between the touch surface and sensor is critical for accurate force transmission. Use a rigid, flat contact surface for best results. The I2C interface is simple to implement and the sensor responds quickly to force changes. Overall, a great choice for touch-sensitive user interfaces."
High-sensitivity force sensor with excellent linearity and ultra-low power consumption
— Dr. Zhang Li, BeiLuo
Frequently Asked Questions
What is the force range of SCF3300?
SCF3300 has a force range of 0-10N (0-1kgf), suitable for touch interfaces and light pressure measurement. This range covers typical touch inputs from light finger taps to firm presses. For applications requiring higher force measurement, consider the SCF6300 industrial-grade sensor.
0-10N range suitable for touch interfaces; contact FAE for higher force range requirements.
How sensitive is SCF3300?
SCF3300 has a sensitivity of 100mV/N with 12-bit resolution, enabling detection of very small force changes. The sensor can detect forces as low as 0.01N (10 grams), making it suitable for detecting light touches and subtle pressure changes.
High sensitivity enables detection of light touches; suitable for responsive touch interfaces.
What is the power consumption of SCF3300?
SCF3300 consumes only 10μA in active mode and 1μA in sleep mode. This ultra-low power consumption enables always-on operation for wake-on-touch functionality without significantly impacting battery life.
Ultra-low power suitable for battery-powered devices; use sleep mode for always-on touch detection.
How fast does SCF3300 respond to force changes?
SCF3300 has a response time of less than 1ms, providing near-instantaneous response to touch inputs. This fast response ensures a responsive user experience without perceptible delay, making it ideal for interactive touch interfaces and real-time control applications.
Fast response time suitable for real-time touch interfaces; no perceptible delay to users.
What is the best way to mechanically integrate SCF3300?
For best performance, ensure rigid mechanical coupling between the touch surface and sensor. Use a flat, rigid contact surface that distributes force evenly across the sensor. Avoid soft materials that dampen force transmission. The sensor should be mounted on a rigid PCB to prevent mechanical interference.
Use rigid mechanical coupling and flat contact surface for accurate force transmission.