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7-Segment Display (Common Cathode) - Red

SKU: 0Y9K85Q854
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4.7 (100 reviews)
The 7-Segment Display (Common Cathode) – Red – 0.56 Inch is a single-digit LED numeric display designed for displaying decimal numbers from 0 to 9 and selected alphabetic characters. It consists of seven individually controlled LED segments, labeled A through G, along with a decimal point (DP). By switching different combinations of segments ON and OFF, numbers and basic characters...
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The 7-Segment Display (Common Cathode) – Red – 0.56 Inch is a single-digit LED numeric display designed for displaying decimal numbers from 0 to 9 and selected alphabetic characters. It consists of seven individually controlled LED segments, labeled A through G, along with a decimal point (DP). By switching different combinations of segments ON and OFF, numbers and basic characters can be displayed.

The display uses a Common Cathode configuration, where the cathodes of all LED segments are internally connected to common ground pins. Individual segments are illuminated by applying a positive voltage to the corresponding segment anode through a suitable current-limiting resistor. The bright red LED segments and 0.56-inch digit height provide clear visibility for electronic instruments, counters, clocks, timers, measurement systems, and educational projects.

Its simple digital interface allows direct control from microcontrollers such as Arduino, ESP32, STM32, PIC, and AVR through suitable current-limiting resistors. For multi-digit applications or applications with limited GPIO pins, the display can also be controlled using shift registers, BCD-to-7-segment decoder ICs, or dedicated LED display driver ICs.

Key Features

  • Single-digit 7-segment LED display
  • Common Cathode configuration
  • Bright red LED illumination
  • 0.56-inch digit height
  • Displays numbers from 0 to 9
  • Supports selected alphabetic characters
  • Built-in decimal point segment
  • Seven individually controllable segments
  • High brightness and clear visibility
  • Low power consumption
  • Fast switching response
  • Wide viewing angle
  • Compact through-hole package
  • Easy interfacing with microcontrollers and digital ICs
  • Suitable for multiplexed multi-digit display systems
  • Ideal for counters, clocks, meters, and instrumentation

Shipping & Returns

Orders placed before 3 PM IST will be shipped on the same day (excluding Sundays and Public holidays) through our shipping partners. In rare cases, the pickup may get delayed during Public holidays / Bandh / Environmental disturbances.

Specifications

Specifications:

Display Type: Single-Digit 7-Segment LED Display
Display Configuration: Common Cathode
Display Color: Red
Digit Height: 0.56 Inch (Approximately 14.2mm)
Number of Digits: 1
Number of Segments: 7 + Decimal Point
Segment Labels: A, B, C, D, E, F, G and DP
LED Technology: Red LED
Typical Forward Voltage per Segment: Approximately 1.8V to 2.2V
Recommended Segment Current: Approximately 10mA to 20mA
Maximum Segment Current: Model Dependent
Peak Wavelength: Approximately 625nm to 635nm
Luminous Intensity: Model Dependent
Viewing Angle: Approximately 120°
Number of Pins: 10
Common Terminals: 2 Common Cathode Pins
Operating Temperature: Approximately -25°C to +85°C
Storage Temperature: Approximately -30°C to +85°C
Mounting Type: PCB Through-Hole
Package Type: DIP Style LED Display
Typical Display Dimensions: Approximately 19mm × 12.5mm × 8mm
Compatibility: Arduino, ESP32, STM32, Raspberry Pi GPIO, PIC, AVR, 8051, BCD Decoder ICs, Shift Registers and LED Driver ICs

Additional Resources

7-Segment Display.PDF

FAQ

1. What is the 0.56-inch Common Cathode 7-Segment Display used for?

The display is used to show numbers and basic characters in applications such as digital counters, clocks, timers, voltmeters, frequency meters, scoreboards, and microcontroller-based projects.

2. What does Common Cathode mean in a 7-segment display?

Common Cathode means that the cathodes of all LED segments are internally connected together. The common pins are connected to ground, and individual segments are turned ON by applying a positive voltage to their corresponding segment pins.

3. Can this 7-segment display be connected directly to an Arduino?

Yes. The display can be controlled using Arduino digital output pins, but a suitable current-limiting resistor should be connected in series with each segment to protect the LEDs and the microcontroller.

4. Can multiple 7-segment displays be used together?

Yes. Multiple displays can be connected using multiplexing techniques or controlled through shift registers, BCD-to-7-segment decoder ICs, or dedicated LED display driver ICs to reduce the number of required GPIO pins.

5. Does this display include a decimal point?

Yes. Most 0.56-inch single-digit 7-segment displays include an additional decimal point (DP) LED segment that can be controlled independently from the seven main numeric segments.