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7-Segment Display (Common Cathode)
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Product Specifications
| Specification | Details |
|---|---|
| Display Type | 7-Segment (Common Cathode) |
| Number of Segments | 7 + 1 decimal point |
| Digit Height | 0.36" – 1" (varies by model) |
| Forward Voltage (per segment) | 1.8V – 2.2V (Red) |
| Forward Current (per segment) | 10mA – 20mA |
| Color Options | Red (default), Green, Blue (based on availability) |
| Operating Temperature | -20°C to +70°C |
| Package Type | DIP (Through-hole) |
| Pins | 10 pins (2 common cathode pins + 8 segment pins) |
Key Features
- Easy-to-use numeric display for digital devices
- Common cathode configuration for simple interfacing.
- Supports numeric digits (0–9) and limited alphabetic characters (A–F, etc.).
- Low power consumption with high brightness LEDs.
- Compact, reliable, and long-lasting.
- Compatible with microcontrollers like Arduino, Raspberry Pi, and PIC.
Applications
- Digital clocks and timers.
- Calculators and counters.
- Voltage, current, and temperature measurement instruments.
- Token number displays in queue systems.
- Embedded system projects and DIY electronics.
Frequently Asked Questions
Yes, you must use current-limiting resistors for each segment to prevent damage to the LEDs.
It is mainly designed for digits (0–9), but some alphabets (like A, b, C, d, E, F) can be displayed depending on segment arrangement.
Yes, it can be easily interfaced with Arduino or any microcontroller using GPIO pins and resistors.
In a common cathode display, all cathodes are tied to ground, and segments are lit by applying a positive voltage. In a common anode display, all anodes are tied to VCC, and segments are lit by pulling cathodes low.
