LY T776-R1S2-4-0-20-R18-Z

LED Indication - Discrete Overview

The LY T776-R1S2-4-0-20-R18-Z is a single-color yellow LED from the Hyper TOPLED RG series by ams OSRAM. It features a PLCC 2 surface-mount package with dimensions of 3.4 x 3 mm and a height of 2.1 mm. The component emits light at a peak wavelength of 587 nm with a viewing angle of 120 degrees. Key electrical parameters include a forward voltage of 2 V and a maximum forward current of 20 mA. The optical intensity is rated at 280 mcd, producing a luminous flux of 0.6 lm. It operates within a temperature range of -40 °C to +100 °C.

LED Indication - Discrete Feature Summary

• Emits monochromatic yellow light at 587 nm for high visibility applications
• Utilizes InGaAlP technology for efficient photon conversion
• Features a white SMT housing designed for top-down mounting
• Radiates light parallel to the PCB for effective light guide coupling

LED Indication - Discrete Applications

• Optical indicators in electronic devices
• Backlighting for LCDs, switches, buttons, and displays
• Advertising lighting and general illumination
• Coupling into light guides via parallel emission

LED Indication - Discrete Procurement Notes

Verify RoHS compliance status directly with the manufacturer or authorized distributors, as historical data indicates potential non-compliance for certain variants. Confirm moisture sensitivity level (JEDEC Level 2) and reflow soldering requirements during procurement planning. Ensure ordering suffixes match specific binning or packaging needs. Cross-reference part numbers such as Q65112A2199 for accurate identification.

LED Indication - Discrete Selection Notes

Select this component when a compact surface-mount yellow LED with parallel emission is required. The 120-degree Lambertian radiation pattern suits wide-angle indicator applications. Consider the 2.1 mm profile for low-height assembly constraints. Verify thermal management capabilities given the +100 °C maximum operating temperature limit for robust performance in enclosed environments.

LED Indication - Discrete Part Context

This part belongs to the Hyper TOPLED RG family, which includes LS, LA, LO, and LY variants sharing similar physical characteristics. These LEDs are engineered for high brightness and efficiency using InGaAlP technology. The series supports various colors including super-red, amber, orange, and yellow, catering to diverse signaling and display needs across industrial and consumer electronics sectors.

LED Indication - Discrete Replacement Considerations

Direct substitutes within the same series include LY T776-Q2T1-26-0-20-R18-Z for yellow emission. Other color variants like LAT776-S1 (Amber) share the same package but differ in wavelength. Verify pinout compatibility and forward voltage tolerances before substitution.