This Product Selection Guide contains information to help select products in the LED Character and Numeric category on DigiKey.com
Display Modules - LED Character and Numeric are devices that can display characters and numbers by individually illuminating segments of LEDs. Commonly referred to as “7 segment displays” they are most often used to display numbers either individually or with multiple displays joined together, units with more segments (14 or 16) can also display alphabetic characters as well.
SelectionCharacteristics
Number of Characters: Describes display size in terms of the maximum number of letters/numbers that can be displayed simultaneously.
Size/Dimension: The physical dimensions of the device. Typically height X width X depth.
Digit/Alpha Size: Vertical dimension of the LED array used to represent a character, as distinct from the dimension of the device overall.
Display Type: Describes the technology used for the display.
Common Pin: Describes the electrical interface to the LEDs within the device.
Color: Indicates the color(s) emitted from the part.
Voltage - Forward (Vf) (Typ): Characterizes the voltage drop across a forward-biased diode, measured at the test current indicated.
Current - Test: Indicates the amount of current flow through a device used by a manufacturer as a test condition for characterization of one or more other device parameters.
Millicandela Rating: Characterizes device brightness at the indicated test current or nominal input voltage.
Wavelength - Peak: Characterizes the highest point in a device’s output spectrum when operated at rated test conditions.
Power Dissipation (Max): Characterizes the amount of electrical power dissipation in a device that produces a specified internal device temperature (often the rated maximum) under specified operating conditions.
Package/Case: Indicates the type of protective case used on an electronic component to allow easy handling, installation, and protection. This selection was determined to be the closest industry standard applicable to the supplier device packaging. Typically it is best to check the actual dimensions from the datasheet rather than depend on this terminology when designing your circuit.
ProductExamples
| MFR PART # | LDS-SMHTA304RISITR |
|---|---|
| DIGI-KEY PART # | 67-2163-2-ND - Tape & Reel (TR) |
| MANUFACTURER | Lumex Opto/Components Inc. |
| DESCRIPTION | DISPLAY 7-SEG 0.3" SGL RED 10SMD |
| DATASHEET | Click Here |
| MFR PART # | LSHD-5601 |
|---|---|
| DIGI-KEY PART # | 160-1575-5-ND |
| MANUFACTURER | Lite-On Inc. |
| DESCRIPTION | DISPLAY 7SEG 0.56" SGL GRN 10DIP |
| DATASHEET | Click Here |
| MFR PART # | LDQ-M516RI |
|---|---|
| DIGI-KEY PART # | 67-1449-ND |
| MANUFACTURER | Lumex Opto/Components Inc. |
| DESCRIPTION | DISP 7SEG 0.56" QUAD RED 12DIP |
| DATASHEET | Click Here |
SchematicSymbol
Schematic symbol courtesy of Scheme-it. Please see their website for more information and symbols.
MediaLinks
TechForum
How to Make Basic 7-Segment Display Connections