LTST-C190KRKT: SMD LED, Red, 639nm, 1.6-2.4V, 130° Viewing Angle
Lite-On

The LTST-C190KRKT is a high-performance Surface-Mount Device (SMD) LED manufactured by Lite-On. It utilizes an Ultra Bright AlInGaP chip to produce red light with a peak emission wavelength of 639nm. Designed for easy integration into various electronic applications, this LED supports infrared reflow soldering processes and is compatible with automatic placement equipment, making it ideal for high-volume production.

With a luminous intensity ranging from 18.0 to 180.0 mcd at 20mA, the LTST-C190KRKT offers flexibility in brightness levels to suit different design requirements. Its viewing angle of 130 degrees provides broad spatial illumination, making it suitable for indicator lights, backlighting, and other applications where wide dispersion of light is beneficial. The LED operates within a forward voltage range of 1.60 to 2.40V, allowing for efficient power usage.

The component is designed to withstand harsh conditions, featuring an operating temperature range of -30°C to +85°C and storage temperatures from -40°C to +85°C. Its robust design ensures reliability and longevity in a wide array of environments.

Key Specifications and Features

  • Luminous Intensity: 18.0 to 180.0 mcd at 20mA
  • Viewing Angle: 130 degrees
  • Peak Emission Wavelength: 639nm
  • Dominant Wavelength: 631nm
  • Spectral Line Half-Width: 20nm
  • Forward Voltage: 1.60 to 2.40V at 20mA
  • Reverse Current: 10μA at 5V
  • Operating Temperature: -30°C to +85°C
  • Storage Temperature: -40°C to +85°C

LTST-C190KRKT Datasheet

LTST-C190KRKT datasheet (PDF)

LTST-C190KRKT Substitutes
Equivalent alternate parts that may serve as a substitute for LTST-C190KRKT, most popular parts first

Applications

  • Indicator lights
  • Backlighting for displays
  • General illumination
  • Signal and symbol luminaire for orientation

Category

LED

General information

Surface-Mount Device (SMD) LEDs are a type of light-emitting diode designed for mounting on the surface of printed circuit boards (PCBs). These components are widely used in a variety of applications due to their small size, high efficiency, and ease of integration into electronic circuits. SMD LEDs are available in various colors, intensities, and sizes, making them versatile for different design requirements.

When selecting an SMD LED, engineers should consider factors such as luminous intensity, viewing angle, wavelength (color), and power requirements. The choice of LED depends on the application's specific needs, such as the desired brightness, color accuracy, and power consumption. Additionally, compatibility with manufacturing processes, including soldering and placement methods, is important for efficient assembly.

SMD LEDs are commonly used in consumer electronics, automotive lighting, signage, and industrial applications. Their compact size and ability to produce bright, focused light make them suitable for use in space-constrained designs. Engineers should also consider the thermal management of LEDs, as excessive heat can affect performance and lifespan.

Overall, SMD LEDs provide a reliable and efficient solution for adding illumination to electronic designs. Their adaptability and performance characteristics make them an essential component in modern electronics.

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