HT-191UYG-5309

LED Indication - Discrete Overview

The HT-191UYG-5309 is a top-emitting surface-mount LED in a 0603 (1.6 x 0.8 x 0.6 mm) package. It emits ultra-bright yellow-green light with a dominant wavelength of 573 nm. The component operates at a typical forward voltage of 2V and a test current of 20mA, delivering a luminous intensity of 50 mcd. It features a wide viewing angle of 130 degrees and utilizes a diffused clear lens for broad visibility.

LED Indication - Discrete Feature Summary

• Top-view emission geometry optimized for direct panel visibility
• Diffused clear lens design ensures wide 130-degree viewing angle
• Ultra-bright yellow-green spectral output for high contrast indication

LED Indication - Discrete Applications

• Status indicators on compact electronic devices
• Backlighting for small form-factor interfaces
• Signal indication in consumer electronics

LED Indication - Discrete Procurement Notes

Verify the specific suffix -5309 to confirm the 573nm wavelength and 50mcd intensity rating. Ensure the ordering matches the standard EIA-481-1A reel specifications for automated assembly compatibility. Confirm the manufacturer source is Harvatek Corporation or authorized distributor ETC to guarantee component authenticity and datasheet alignment.

LED Indication - Discrete Selection Notes

Select this component when space constraints require a 0603 footprint with high visibility requirements. The 130-degree viewing angle makes it suitable for applications where the indicator may not be viewed directly from above. The 2V forward voltage drop is compatible with low-voltage logic circuits operating at standard levels.

LED Indication - Discrete Part Context

This part belongs to the Harvatek HT-191 series, which focuses on 0.6mm height surface-mount LEDs. The series includes various colors and intensities within the same physical envelope, allowing designers to maintain consistent PCB layout while changing signal indication colors without altering mechanical constraints.

LED Indication - Discrete Replacement Considerations

Direct substitutes include other 0603 yellow-green LEDs with similar 573nm wavelengths and 2V forward voltage. Verify that replacement parts match the 130-degree viewing angle and 50mcd minimum intensity to ensure equivalent visual performance in the target application.