3 Digit 7 Segment Common Cathode LED Display

This 3-digit 7 segment common cathode LED display is a type of digital display that uses 7 LEDs to display a single digit, plus an eighth LED for the decimal point. The common cathode means that all the cathodes of the LEDs are connected together to the ground or negative voltage rail, and the individual segments are illuminated by applying a positive voltage to the appropriate anode.

To display a number, the appropriate anodes are set to a high voltage and the common cathode is set to a low voltage. For example, to display the number “1”, the anodes of segments A, B, and C would be set to a high voltage and the common cathode would be set to a low voltage.

3-digit 7 segment common cathode LED displays are commonly use in digital clocks, calculators, and other electronic devices. They are also used in some automotive applications, such as odometers and fuel gauges.

the operating voltage of a 3-digit 7 segment common cathode LED display can range from about 2 volts to 3.6 volts, depending on the color of the LEDs.

3 Digit Common Cathode 7 Segment LED Display is high luminous intensity display. 3 Digit Common Cathode 7 Segment LED Display has low power consumption with extremely low current. This display has stable performance with long viewing angle. Its color is bright which is fully attractive and eye-catching for your projects and other devices.

Features : –

This 3 digit 7 segment common cathode LED displays are relatively inexpensive. 3 digit 7 segment common cathode LED displays are relatively easy to drive with a microcontroller or other digital logic circuit. Here are some of the benefits of using a 3-digit seven segment common cathode LED display:

• Relatively inexpensive
• Easy to drive
• Long lifespan

3 Digit 7 Segment Common Cathode LED Display Specifications : –

A 3 digit Seven Segment Common Cathode display can show three digits, such as 123. A Common Cathode 7 Segment Display has 7 segments, which are arrange in a specific pattern to represent the digits 0-9. The configuration refers to the way the segments are connect to the display. In a common cathode display, all the cathodes of the segments are connect together to the common cathode pin. here some common specifications include:

• Number of digits: 3
• Segment type: 7 segment
• Configuration: Common cathode
• LED color: Red
• Operating voltage: 2-3.6 volts
• Current draw: 20-30 milliamperes per segment
• Viewing angle: 120 degrees
• Pin count: 12

3 Digit 7 Segment Common Cathode LED Display Applications : –

These 3-digit 7 segment common cathode LED displays are a versatile and reliable option for digital display applications. 3 digit Seven Segment Common Cathode LED displays are commonly use in digital clocks, calculators, and other electronic devices. They are also use in some automotive applications, such as odometers and fuel gauges. 3 digit seven segment common cathode LED displays are use in a variety of applications, including:

• Digital clocks
• Calculators
• Electronic meters
• Ticket machines
• Traffic lights
• Microwave ovens
• Vending machines
• Toys
• Signs
• Medical devices
• Industrial equipment

They are a popular choice for these applications because they are relatively inexpensive, easy to drive, and have a long lifespan.

3 Digit 7 Segment Common Cathode LED Display Pin Descriptions : –

The working principle of a 3 Digit Seven Segment Display is base on the fact that an LED will light up when a positive voltage applied to its anode and a negative voltage applied to its cathode. In a 3 Digit Seven Segment Display , all the cathodes of the LEDs connected together to the common cathode pin, and the anodes of the LEDs connected to separate pins.

To display a number, the appropriate anodes are set to a high voltage and the common cathode is set to a low voltage. The 12 pins of the display are typically arranged as follows:

• Pin1: Anode of segment A
• Pin2: Anode of segment B
• Pin3: Common cathode (all cathodes connected to this pin)
• Pin4: Anode of segment C
• Pin5: Anode of segment D
• Pin6: Decimal point anode (optional)
• Pin7: Anode of segment E
• Pin8: Common cathode (all cathodes connected to this pin)
• Pin9: Anode of segment F
• Pin10: Anode of segment G
• Pin11: Anode of segment DP (decimal point)
• Pin12: Not connected

The display can drive by a microcontroller or other digital logic circuit. The microcontroller would first generate a BCD code for the number to display. The BCD code would then converted to a seven segment code. The seven segment code would then use to set the appropriate anodes to a high voltage.

Package : –

1 x 3 Digit seven Segment Common Cathode LED Display

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