4 Digit 7 Segment Display Common Cathode for Digital Clock
Pickup available at Digilog Electronics
Usually ready in 2 hours
Build your own digital clocks, timers, and counters with this 0.36-inch, 4-digit, red 7-segment LED display with a common cathode connection. Perfect for Arduino, Raspberry Pi, and other microcontroller-based DIY electronics projects, this display offers crisp, high-brightness red digits that stay clearly visible even at low drive currents — making it energy-efficient for battery-powered projects.
A seven-segment display is a simple, low-cost alternative to complex dot-matrix displays for showing decimal numerals, and remains a go-to component for digital clocks, timers, counters, and numeric readouts in hobbyist and educational electronics.
Overview
Four-digit, 0.36" red LED display with common cathode wiring, standard 2.54mm pin pitch for easy breadboard and PCB use.
Features
- 0.36" digit height
- 4-digit display
- 2.54mm pin pitch — breadboard and perfboard friendly
- High-brightness red LEDs
- Low power consumption
- Common cathode connection
Specifications
| Parameter | Value |
|---|---|
| Reverse Voltage (Vr) | 5V |
| Reverse Leakage Current (Ir) | 50µA |
| Forward Current (If) | 25mA |
| Peak Forward Current (Ifp) | 100mA |
| Power Dissipation (P) | 100mW per segment |
| Operating Temperature | -40°C to +80°C |
| Storage Temperature | -40°C to +85°C |
| Lead Soldering Temperature | 260°C |
Common Applications
- DIY digital clocks and alarm clocks
- Countdown timers and stopwatches
- Score counters and numeric display panels
- Arduino, Raspberry Pi, and other microcontroller projects
- Can be driven directly or via driver ICs (e.g., 74HC595, MAX7219) for reduced pin count
Package Includes
- 1 × 4 Digit 7 Segment Display (0.36", Common Cathode)