Kingbright SC56-21SURKWA: Hyper Red LED Numeric Display

The Kingbright SC56-21SURKWA numeric display features Hyper Red LEDs fabricated with AlGaInP on a GaAs substrate. This single digit numeric display offers a combination of high brightness, low power consumption, and rugged construction, making it suitable for a wide range of applications.

Features:

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

Home and smart appliances for digital displays
Time and digital combination displays in various devices
Industrial and instrumental applications requiring numeric status indication
Technical Specifications:

Emitting Color: Hyper Red
Lens Type: White Diffused
Luminous Intensity at 10mA: 31000 mcd (Min.) to 97000 mcd (Typ.)
Common Cathode, Right Hand Decimal
Electrical / Optical Characteristics:

Power Dissipation (PD): 75 mW
Reverse Voltage (VR): 5 V
Junction Temperature (Tj): 115 °C
Operating Temperature Range: -40 to +85 °C
Storage Temperature Range: -40 to +85 °C
DC Forward Current (IF): 30 mA
Peak Forward Current (IFM): 185 mA
Electrostatic Discharge Threshold (HBM): 3000 V
Lead Solder Temperature: 260°C for 3-5 Seconds
Optical Performance:

Wavelength at Peak Emission (IF = 10mA): 645 nm
Dominant Wavelength (IF = 10mA): 630 nm
Spectral Bandwidth at 50%: 28 nm
Capacitance: 35 pF
Forward Voltage (IF = 10mA): 1.85 to 2.35 V
Reverse Current (VR = 5V): - 10 µA
Mounting and Soldering Recommendations:

Not compatible with reflow soldering for through-hole displays.
Check with Kingbright for compatibility if components will undergo multiple soldering processes or intense heat exposure.
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.
Wash components with water only if cleaning is required, 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 is for technical reference and reflects representative usage scenarios.
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.