Overview
The LTST-C21RTGKT is a surface-mount LED component designed for modern electronic applications. As part of the LTST series from Lite-On Technology, this LED offers reliable performance with its compact 0603 package size (1.6mm x 0.8mm). These LEDs are commonly used in space-constrained applications where bright, efficient illumination is required. The component is RoHS compliant and suitable for automated assembly processes, making it ideal for high-volume manufacturing environments.
Structure and Working Principle
The LTST-C21RTGKT consists of a semiconductor chip mounted in a reflective cavity, encapsulated in transparent or diffused epoxy. When forward voltage is applied, electrons recombine with electron holes within the device, releasing energy in the form of photons. The specific wavelength and color output depend on the semiconductor materials used. The package includes anode and cathode terminals for surface mounting, with polarity clearly marked for correct installation.
Key Features
This LED component offers several notable characteristics. It provides high luminous intensity while maintaining low power consumption, typically operating at 20mA forward current. The device features a wide viewing angle of approximately 120 degrees for good visibility from multiple directions. With a typical forward voltage of 2.0-2.2V (for red versions), the LTST-C21RTGKT is energy efficient. It also has excellent electrostatic discharge (ESD) protection, meeting industry standards for reliability in various electronic applications.
Application Areas
The LTST-C21RTGKT finds use across multiple industries. In consumer electronics, it serves as status indicators in smartphones, tablets, and home appliances. Automotive applications include dashboard lighting and interior illumination. Industrial applications encompass control panel indicators and machine status lights. The component is also used in medical equipment, where reliable visual signaling is critical. Its small size makes it particularly valuable in miniaturized electronic devices.
Maintenance and Precautions
Proper handling of the LTST-C21RTGKT ensures optimal performance and longevity. Workers should use ESD protection when handling these components to prevent damage from static electricity. The recommended soldering profile should not exceed 260°C for more than 10 seconds. Storage conditions should maintain temperatures between -40°C to +85°C with relative humidity below 70%. Avoid mechanical stress during assembly, as the small package size makes it susceptible to damage from excessive force.
B2B Procurement Guide
When sourcing LTST-C21RTGKT LEDs, buyers should verify specifications match their requirements. Key parameters include dominant wavelength, luminous intensity, and viewing angle. Consider minimum order quantities, typically 3,000-5,000 pieces for standard pricing tiers. Lead times vary but commonly range from 4-8 weeks for standard orders. For urgent needs, check distributor stock availability. Quality certifications like ISO 9001 and IATF 16949 (for automotive grade) indicate reliable suppliers.
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