Kingbright SC56-21GWA: High Efficiency Green LED Numeric Display

The Kingbright SC56-21GWA is a high efficiency green LED numeric display designed for applications requiring clear digital indication. Made with Gallium Phosphide (GaP), this single digit numeric display offers a combination of low power consumption, excellent character appearance, and ease of mounting.

Features:

0.56 inch digit height for visibility
Low current operation for energy efficiency
Excellent character appearance for readability
Easy mounting on PC boards or sockets
Mechanically rugged for durability
Standard gray face with white segment
RoHS compliant for environmental sustainability
Applications:

Home and smart appliances for user interface displays
Display time and digital combinations in clocks and timers
Industrial and instrumental applications requiring numeric status indication
Technical Specifications:

Emitting Color: Green
Lens Type: White Diffused
Luminous Intensity at 10mA: 3600 mcd (Min.) to 11000 mcd (Typ.)
Common Cathode, Right Hand Decimal
Electrical / Optical Characteristics:

Power Dissipation (PD): 62.5 mW
Reverse Voltage (VR): 5 V
Junction Temperature (Tj): 110 °C
Operating Temperature Range: -40 to +85 °C
Storage Temperature Range: -40 to +85 °C
DC Forward Current (IF): 25 mA
Peak Forward Current (IFM): 140 mA
Electrostatic Discharge Threshold (HBM): 8000 V
Lead Solder Temperature: 260°C for 3-5 Seconds
Optical Performance:

Wavelength at Peak Emission (IF = 10mA): 565 nm
Dominant Wavelength (IF = 10mA): 568 nm
Spectral Bandwidth at 50%: 30 nm
Capacitance: 15 pF
Forward Voltage (IF = 10mA): 2.0 to 2.4 V
Reverse Current (VR = 5V): - 10 µA
Mounting and Soldering Recommendations:

Through-hole displays are not compatible with reflow soldering.
For multiple soldering processes or intense heat exposure, consult Kingbright for component compatibility.
Pre-heat temperature should be 105°C or less before soldering.
Maximum solder bath temperature of 260°C for 3-5 seconds.
Cleaning Instructions:

Use mild "no-clean" fluxes for soldering.
If cleaning is necessary, wash components with water only, avoiding harsh organic solvents.
Clean at room temperature and do not wash for more than one minute.
Remove excess moisture with forced-air drying immediately after water cleaning.
Circuit Design Notes:

Consider protective current-limiting resistors for operating LEDs within the specified range.
Design the driving circuit to protect against reverse voltages and transient spikes.
Choose the safe operating current based on the maximum ambient temperature.
Precautionary Notes:

This document reflects representative usage scenarios and is for technical reference only.
Specifications are subject to change without notice. Refer to the latest datasheet for updates.
Ensure products are operated within the specified environmental and electrical limits.
For special processes like potting, consult with Kingbright before proceeding.
Packaging & Label Specifications:

Follow proper lead forming and installation methods to avoid damage.
Place components at least 5mm from the edge of the PCB to prevent heat damage during soldering.