SC56-21EWA

Display Type:	7-Segment
Package / Case:	10-DIP (0.600", 15.24mm)
Power Dissipation (Max):	75mW
Wavelength - Peak:	627nm
Millicandela Rating:	6.4mcd
Current - Test:	20mA
Voltage - Forward (Vf) (Typ):	2V
Color:	Red
Common Pin:	Common Cathode
Series:	--
Digit/Alpha Size:	0.56" (14.22mm)
Size / Dimension:	0.750" H x 0.500" W x 0.315" D (19.05mm x 12.70mm x 8.00mm)
Number of Characters:	1
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tube

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SC56-21EWA Application Field and Working PrincipleIntroductionThe SC56-21EWA is a light-emitting diode (LED) display module designed for applications in digital displays and display devices. The module is designed for two types of LED displays: LED character and numeric displays. It has a display area of 5x7 mm, with a character height of 0.7mm and a character width of 0.55mm.The module is built with a base plate and seven rows of electrode pins on the upper edge. The electrode pins are used to connect the on-board LEDs to each other and to control the display.Application FieldThe SC56-21EWA is an ideal display module for many applications, including:• Digital clocks, counters and indicators• Digital thermometers• Industrial process control panels• Barcode scanners• Automotive instrumentation panels• Telephone and facsimile display systemsWorking PrincipleThe SC56-21EWA uses a current-modulated approach to control the intensity of the LED displays. The current modulated approach uses a constant reference voltage applied across the LED’s anode and cathode. The LED current is then sent through the LED and modulated by a control voltage applied on a per-LED basis.This method of display control gives the designer the flexibility to produce both static and animated images on the display. The current level of each LED can be adjusted to create different levels of brightness for each LED display.The module is designed for use with a microprocessor-controlled display driver, allowing the user to create complex display effects and sequences.ConclusionThe SC56-21EWA LED display module is an ideal choice for applications in digital displays and display devices. The module allows for ease of control and flexibility with complex display effects. Due to its simple design and low power consumption, it is a cost-effective solution for many applications.

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