Description
Description
The TTP223B Capacitive Touch Switch Module is a compact input device designed to replace traditional mechanical buttons with a touch-sensitive interface. It operates using capacitive sensing technology and provides a digital output based on user interaction. The module supports a wide input voltage range from 2.0V to 5.5V and features low power consumption with automatic low-power mode after inactivity. Built for stable and reliable operation, it can be mounted behind non-metallic surfaces such as plastic or glass for hidden touch applications. Ideal for embedded systems, control panels, and interactive electronics projects.
Features
- TTP223B capacitive touch sensing IC
- Momentary touch output operation
- Wide operating voltage range 2.0V5.5V
- Low power consumption in standby mode
- Automatic low-power mode after 12 seconds inactivity
- Digital output signal (HIGH/LOW)
- High sensitivity touch detection
- Supports hidden installation behind non-metallic surfaces
- Compact PCB design 24 24 mm
- Integrated mounting holes for secure installation
- Fast response time in touch mode (60 ms)
- Stable output with noise resistance
- No mechanical wear compared to push buttons
- Compatible with microcontrollers and Arduino systems
- Supports both direct and surface touch activation
Specifications
- Operating Voltage: 2.05.5V DC
- Typical Operating Voltage: 3V DC
- Output Type: Digital HIGH/LOW
- Output High Voltage (VOH): 0.8 VCC
- Output Low Voltage (VOL): 0.3 VCC
- Output Sink Current: 8 mA @ 3V
- Output Source Current: 4 mA @ 3V
- Response Time (Touch Mode): 60 ms
- Response Time (Low Power Mode): 220 ms
- Auto Low Power Timeout: 12 seconds
- Touch Method: Capacitive sensing
- Mounting Holes: 4 M2
- Module Dimensions: 24 24 7.2 mm
- Surface Compatibility: Non-metallic materials only
- Operating Mode: Momentary (active while touched)
Links
- Capacitive Touch Switch Module 3D Model
- Capacitive Touch Switch Module TTP223B
Tutorials
- Capacitive TTP223 Touch Sensors Explained with Arduino
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