Kingbright SA10-21SRWA: Super Bright Red LED Numeric Display

The Kingbright SA10-21SRWA is a high-intensity Super Bright Red LED numeric display, crafted with Gallium Aluminum Arsenide Red Light Emitting Diode technology. This display is designed for durability and clarity, making it suitable for a wide range of applications.

Features:

1.0 inch digit height for excellent visibility.
Low current operation for energy efficiency.
Excellent character appearance and high light output.
Easy mounting on P.C. boards or sockets.
Mechanically rugged construction.
Standard gray face with white segment for high contrast.
Compliant with RoHS standards for environmental responsibility.
Applications:

Home and smart appliance displays.
Time and digital combination displays.
Industrial and instrumental applications.
Numeric status indicators.
Technical Specifications:

Luminance: 52000 to 120000 (typical at 10mA).
Wavelength at Peak Emission (λpeak): 655 nm (typical at 10mA).
Dominant Wavelength (λdom): 640 nm (typical at 10mA).
Spectral Bandwidth at 50%: 20 nm (typical at 10mA).
Capacitance: 45 pF (typical).
Forward Voltage: 1.80 to 2.30 V (typical at 10mA).
Reverse Current: -10 µA (maximum at 5V reverse voltage).
Power Dissipation: 75 mW (per chip).
Operating Temperature: -40 to +85°C.
Lead Solder Temperature: 260°C for 3-5 seconds.
Absolute Maximum Ratings:

Ensure that the device is operated within the specified limits to avoid damage or reduced performance.
Mounting and Soldering Guidelines:

Avoid bending component leads without proper tools.
Ensure the terminal pitch matches the substrate board's hole pitch.
Place components at least 5mm from the edge of the PCB to avoid heat damage.
Recommended Solder Profile:

Through-hole displays are not compatible with reflow soldering.
Pre-heat temperature of 105°C or less before solder wave immersion.
Maximum solder bath temperature of 260°C for 3 seconds (5 seconds maximum).
Cleaning Instructions:

Use mild "no-clean" fluxes for soldering.
Clean components with water only, avoiding harsh solvents.
Clean at room temperature and limit washing to one minute.
Remove excess moisture with forced-air drying immediately after water cleaning.
Circuit Design Notes:

Incorporate protective current-limiting resistors for LED operation.
Design the circuit to protect against reverse voltages and voltage spikes.
Choose safe operating current based on maximum ambient temperature.
Avoid prolonged reverse bias to prevent metal migration and short circuits.
Precautionary Notes:

This document provides representative usage scenarios for technical reference.
Specifications are subject to change without notice; refer to the latest datasheet.
Operate products within the limits specified in the datasheet.
For applications with special reliability requirements, consult with Kingbright.
Do not reproduce or re-transmit the document's contents without permission.