A Multi Color LED Bar Graph, also known as a Multi Colour Bar Graph Display or Multi Color LED Level Display, is designed to show changing values through a row of illuminated LED bars. It provides a quick visual indication of level, range, progress or operating condition.
Unlike a single color bar graph, a multi color bar graph can support color-based level indication. This makes it useful in applications where the display must visually separate normal, warning, alert or high-level zones.
Alfa Electronic Components supplies Multi Color LED Bar Graph Displays for industrial electronics, audio equipment, embedded systems, control panels, testing instruments and electronic product manufacturing. The available range includes 10 bar display options with 20-pin and 30-pin configurations.
Multi Color Level Indication
The main advantage of a multi color LED bar graph is its ability to combine level indication with color-based meaning. This helps users understand the condition quickly without reading exact numeric values.
It can help indicate:
- Low, medium and high levels
- Normal and warning zones
- Safe and alert conditions
- Signal strength
- Battery level
- Audio level
- Process range
- Load condition
- Output level
- Equipment status
The exact color arrangement depends on the selected model and circuit design. Buyers should confirm the required color combination before finalising the model.
10 Bar Display Format
Both listed variants are available in 10 bar format. This provides a clear linear indication with multiple visual steps, making it suitable for applications that need better level representation than a simple 5 bar or 8 bar display.
A 10 bar multi color display is commonly used in:
- Audio VU meters
- Battery level indicators
- Signal strength displays
- Process level indicators
- Equipment status panels
- Industrial monitoring systems
- Control panel level displays
20-Pin and 30-Pin Options
The range includes 20-pin and 30-pin model options. The pin configuration affects PCB layout, driving method and circuit compatibility.
Buyers should confirm the selected model, pin count, pinout, polarity and color-control arrangement before finalising the PCB design.
Common Anode and Common Cathode Options
The range supports Common Anode and Common Cathode configurations. The correct polarity depends on the driver circuit, control board or microcontroller design.
Common Anode and Common Cathode versions are not direct replacements in every circuit. Buyers should confirm polarity before ordering or designing the PCB.
Compact PCB Mount Design
Both listed Multi Color LED Bar Graph variants have a compact 10.1 × 25.1 × 8 mm body size. This makes them suitable for PCB-mounted instruments, electronic panels, audio products, embedded systems and compact indicator modules.
Buyers should verify the latest approved technical drawing before PCB layout, enclosure design or production.
