7-Segment Display - 20mm (Common-Anode, Red)

Replacement: None. We are no longer carrying this 7-segment display in our catalog. This page is for reference only.

For a long time we’ve had small 7-segment displays and huge 7-segment displays, but now we finally have something in between. These 20mm 4-digit 7-segment displays are big enough to see from a distance but not so big that you’d have trouble finding an enclosure for them.

These common-anode displays feature 4 x 7-segment digits and one decimal point per digit. The LEDs have a forward voltage of 1.9VDC and a max forward current of 20mA.

Note: Due to a supplier mix-up we got these common-anode 7-seg displays instead of our normal common-cathode version. Make sure to check the datasheet listed below for additional information. We will not be stocking these displays again once they are gone, unless you beg us to.

  • 71.6 x 25.7mm

7-Segment Display - 20mm (Common-Anode, Red) Product Help and Resources

Core Skill: Soldering

This skill defines how difficult the soldering is on a particular product. It might be a couple simple solder joints, or require special reflow tools.

1 Soldering

Skill Level: Noob - Some basic soldering is required, but it is limited to a just a few pins, basic through-hole soldering, and couple (if any) polarized components. A basic soldering iron is all you should need.
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Core Skill: Electrical Prototyping

If it requires power, you need to know how much, what all the pins do, and how to hook it up. You may need to reference datasheets, schematics, and know the ins and outs of electronics.

3 Electrical Prototyping

Skill Level: Competent - You will be required to reference a datasheet or schematic to know how to use a component. Your knowledge of a datasheet will only require basic features like power requirements, pinouts, or communications type. Also, you may need a power supply that?s greater than 12V or more than 1A worth of current.
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Customer Comments

  • +1 for Normal Stock, other sizes would also be nice.

  • Common anode is MUCH easier to drive. I wish you had these when I placed my last order!

    Sinking current is way simpler than sourcing it for most designs I’ve encountered.

  • People have been begging for these for some time now.

  • Is there a footprint with the proper pin out for this part in the eagle parts lib? If not, can we get one?

    • Hi Mike, You should be able to use the “7-SEGMENT-4DIGIT-COUNTER” device from SparkFun-Displays.lbr . It has the correct pinout (they made it common anode/cathode agnostic). Do note that according to the datasheet this product is 71.6mm in length, whereas that device is 64mm. The pin spacing is correct, however, so you should be able to adjust the package for the device pretty easily, or just keep a little extra space to the sides when designing your board.

  • +1 for making these normal stock.

  • I’m begging. Just got them in mail Friday. Working by Saturday. Checked all with test. No problems with any of the 10 ordered. Thx!!!

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