SMA42056 0.56" Single Digit 7-Segment LED Display Common Cathode - Super Red

The SMA42056 is a 0.56-inch (14.20mm) single-digit seven-segment LED display from the SMA561XXX series, featuring a Super Red GaAlAs chip, common cathode configuration, white segments, and black surface finish. Designed for viewing distances up to 7 metres, it delivers excellent segment uniformity and reliable performance in bright ambient light — making it ideal for audio equipment, instrument panels, digital readout displays, and industrial indicator applications.

Key Specifications

• Part Number: SMA42056 (LT543)
• Digit Height: 0.56 inch (14.20mm)
• Configuration: Single Digit, Common Cathode
• Chip Material: GaAlAs
• Source Colour: Super Red
• Peak Emission Wavelength (λp): 640nm
• Dominant Wavelength (λd): 630nm
• Forward Voltage (Vf): 1.8V typ. / 2.4V max. @ IF=20mA
• Forward Current Per Segment (IF): 25mA max.
• Peak Forward Current (IFP): 100mA (1/10 duty, 0.1ms pulse)
• Power Dissipation Per Segment: 60mW
• Luminous Intensity: 30–50mcd @ IF=20mA
• Reverse Voltage (VR): 5V
• Operating Temperature: -25°C to +80°C
• Surface: White Segments, Black Surface
• Viewing Distance: Up to 7 metres

Package Includes

• 1 x SMA42056 0.56" Single Digit 7-Segment LED Display Common Cathode

Note: Always use current-limiting resistors to prevent over-current damage. Image is for representation purpose only.