3-Digit 7-Segment LED Display
3-Digit 7-Segment LED Display - Image 2
3-Digit 7-Segment LED Display - Image 3

3-Digit 7-Segment LED Display

₹80.00

Overview

The component shown in the image is a 3-Digit 7-Segment LED Display Module. It features three numeric digits side-by-side, each composed of 7 individually controllable LED segments (labeled ‘a’ through ‘g’) along with a decimal point (DP) per digit. This electronic display component is designed to display numerical values ranging from 000 to 999, as well as limited alphabetical characters and custom status codes. It provides high brightness, low power consumption, and long operational life, making it a standard choice for embedded electronics, digital instrumentation, and consumer appliances.

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Description

Key Specifications

Parameter / Specification Details / Typical Value
Display Type 3-Digit, 7-Segment LED Display
Configuration Options Common Anode (CA) or Common Cathode (CC)
Digit Count 3 Digits with Decimal Points (DP)
Pin Count / Arrangement 11 or 12 Pins (DIP / Through-hole mount)
Forward Voltage (Vf) 1.8V – 2.2V per segment (Red/Green LED typical)
Forward Current (If) 15mA – 20mA per segment
Luminous Intensity High brightness / High contrast
Operating Temperature -20°C to +80°C
Drive Method Multiplexed control (reduces total pin requirements)

 

Applications & Uses

  • Digital Measuring Instruments: Used in digital panel meters, voltmeters, ammeters, digital multimeters, and temperature controllers.
  • Industrial & Automation Controls: Integrated into counter modules, RPM indicators, timer relays, and process machinery control panels.
  • Consumer Electronics & Appliances: Found in microwave ovens, washing machines, digital clocks, water heaters, and fitness equipment.
  • Microcontroller & DIY Projects: Widely utilized in Arduino, Raspberry Pi, and STM32 embedded projects for displaying sensor data and timer readouts.
  • Retail & Point of Sale: Employed in electronic weighing scales, queue management displays, and basic scoreboards.

Operating Principle

To display specific digits, current is passed through specific segments (a to g) of each digit. Because driving 3 individual 7-segment displays directly would require 24+ pins, 3-digit displays use multiplexing. In multiplexed mode, the segment pins (a-g, DP) are wired in parallel across all three digits, and each digit has its own common line (Anode or Cathode). By toggling each digit’s common pin sequentially at high frequencies (>60 Hz), persistence of vision makes all three digits appear

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3-Digit 7-Segment LED Display

₹80.00