Kingbright TA20-11EWA: High Efficiency Red LED Dot Matrix Display

The Kingbright TA20-11EWA is a high-efficiency red LED dot matrix display made with Gallium Arsenide Phosphide on Gallium Phosphide. This 5x7 dot matrix display is designed for clear visibility and durability, suitable for various applications.

Features:

2.0 inch matrix height with 5mm dot size for high visibility
Low current operation for energy efficiency
High contrast and light output for better readability
Stackable design for versatile applications
Easy mounting on PC boards or sockets for flexible installation
Categorized for luminous intensity
Mechanically rugged for reliable performance
Standard gray face with white dot 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: High Efficiency Red
Lens Type: White Diffused
Luminous Intensity at 10mA: 5600 mcd (Min.) to 12000 mcd (Typ.)
Column Anode
Electrical / Optical Characteristics:

Power Dissipation (PD): 75 mW
Reverse Voltage (VR): 5 V
Junction Temperature (Tj): 125 °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): 160 mA
Electrostatic Discharge Threshold (HBM): 8000 V
Lead Solder Temperature: 260°C for 3-5 Seconds
Optical Performance:

Wavelength at Peak Emission (IF = 10mA): 627 nm
Dominant Wavelength (IF = 10mA): 617 nm
Spectral Bandwidth at 50%: 45 nm
Capacitance: 15 pF
Forward Voltage (IF = 10mA): 1.9 to 2.3 V
Reverse Current (VR = 5V): - 10 µA
Mounting and Soldering Recommendations:

Not compatible with reflow soldering for through-hole displays.
Consult 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.