5977701207LF

Overview

The Dialight 5977701207LF is a surface-mount bi-color LED indicator featuring green and red elements within a compact 0404 (1.0mm x 1.0mm) package. It utilizes a non-diffused lens with a 128-degree viewing angle for clear visibility. The component operates at a forward current of 20mA, with typical forward voltages of 2.2V for the green element and 2.1V for the red element. Peak wavelengths are specified at 565nm for green and 630nm for red, while dominant wavelengths measure 570nm and 628nm respectively. Luminous intensity reaches 21mcd for green and 52mcd for red. It supports industrial temperature ranges from -55°C to 100°C and complies with RoHS3 standards.

Feature Summary

• Bi-color configuration combining green and red LEDs in a single SMD footprint
• High brightness output suitable for panel and board status indication
• Compact 0404 package design optimized for high-density PCB layouts

Applications

• Industrial control panel status indicators
• Electronic equipment power and fault signaling
• Consumer appliance operational feedback displays

Procurement Notes

Verify that the specific suffix LF denotes lead-free compliance consistent with RoHS3 requirements. Confirm the package orientation and pinout alignment matches the target PCB footprint design. Ensure storage conditions adhere to moisture sensitivity level guidelines prior to reflow soldering to maintain component reliability during assembly processes.

Selection Notes

Select this component when space constraints require a minimal 0404 footprint without sacrificing luminous intensity. The dual-color capability allows for distinct status coding within a single location. Verify that the required viewing angle and lens type meet the optical visibility needs of the final enclosure design compared to diffused alternatives.

Part Context

This part belongs to the Dialight 597 series of surface-mount LEDs, designed for general-purpose indication. The series offers various color combinations and package sizes to accommodate different board density requirements. The 5977701207LF specifically addresses applications needing reliable bi-color signaling in a miniature form factor.

Replacement Considerations

• 5977707507F

FAQ

What is the difference between peak and dominant wavelength for this LED?

Peak wavelength indicates the maximum emission intensity point, while dominant wavelength represents the perceived color by the human eye. For this part, peaks are 565nm/630nm and dominants are 570nm/628nm.

Is the lens of the 5977701207LF diffused or non-diffused?

The lens is non-diffused, providing a focused light output with a wide 128-degree viewing angle rather than a scattered beam.