The EC11 Rotary Encoder is a high-performance incremental pulse knob digital potentiometer integrated with a push-button switch, designed for precise human-machine interaction in electronic devices. As a classic contact-type incremental encoder, it outputs two square wave pulse signals with a 90° phase difference (Phase A and Phase B) during 360° unlimited rotation, allowing the connected microcontroller to accurately identify rotation direction, speed and position. The integrated independent push-button function adds one-click confirmation and selection operations, which greatly expands the control scenarios for end products. This series of encoders supports customized parameters such as pulse counts, positioning points, shaft types and operating torque, and is widely recognized in the industry for its stable signal output, long service life and compact structure, making it a cost-effective core component for parameter adjustment and menu navigation.
Product Features
. 360° unlimited free rotation with no dead stop points, supporting 20/24/30 optional pulses per revolution, each gear delivers clear tactile feedback for precise and smooth adjustment operations
. Integrated independent silent push-button switch, which can realize one-click confirmation, function switching and other operations, eliminating the need for additional separate buttons to save board space
. Wide operating voltage range of DC 3.3V-5V, perfectly compatible with common embedded systems such as STM32, Arduino and other mainstream microcontroller platforms
. Excellent mechanical and electrical durability: rotation life reaches more than 30,000 cycles, push-button service life can be customized up to 50,000 cycles, maintaining stable signal output after long-term use
. Ultra-wide operating temperature range from -40°C to +85°C, with good dust-proof and sealing performance, adapting to harsh working environments of different industrial and consumer electronic products
. Multiple customizable options: various shaft types (half-shaft, plum blossom shaft, etc.), shaft lengths, operating torque and switch actuation force are available to meet the personalized assembly and hand-feel requirements of different products
Standard 5-pin pin definition, with built-in stable contact structure, signal bounce is small, which can effectively reduce the difficulty of software de-jitter processing for developers
Application Fields
Consumer Audio & Smart Home: Used for volume adjustment, sound effect mode switching, menu navigation on smart speakers, Bluetooth speakers, desktop audio and home control panels, and supports precise adjustment of light brightness, curtain position and temperature parameters
White Goods & Small Home Appliances: Widely installed on control panels of coffee machines, ovens, wall breakers, washing machines and purifiers, to realize function selection, gear adjustment and parameter setting operations
Automotive On-board Electronics: Applied to car central control audio, air conditioning control panels, instrument adjustment and car navigation systems, providing drivers with smooth and accurate rotary control experience
Instruments & Industrial Control: Used for parameter adjustment, measurement mode switching and data setting on test instruments, oscilloscopes and industrial control panels, improving the operation accuracy of equipment
Medical & Sports Equipment: Suitable for parameter adjustment of ventilators, color ultrasound instruments and other medical devices, as well as speed and mode control of fitness equipment such as treadmills
Communication & Peripheral Products: Used for channel and frequency adjustment of walkie-talkies, as well as function control of computer peripherals, gaming devices and handheld electronic products