
Ningbo Songle Relay Co., Ltd.
Functionally similar green LED with matching electricals but requires PCB layout change due to different package size.
LTST-C150KGKT is a popular 0603 green SMD LED from LITEON. Finding a direct drop-in replacement requires matching the package, color, and brightness, while functional alternatives with different packages are available.
Requires PCB layout change from 0603 to 0805.
Key parameters like voltage, current, and color are well-matched.
The alternative is from a different manufacturer, requiring new vendor qualification.
No direct drop-in replacement was found. The best option, NCD2012C1, is a functional match but requires a board redesign due to a larger package.
functional_alternate
Package mismatch is the main risk; the target is a 0603 package while the closest functional match is 0805.

Ningbo Songle Relay Co., Ltd.
Functionally similar green LED with matching electricals but requires PCB layout change due to different package size.
| Feature / factor | LTST-C150KGKT | NCD2012C1 | Alt 2 | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 0603 (1.6mm x 0.8mm) | 0805 (2.0mm x 1.2mm) | 0805 (2.0mm x 1.2mm) — Candidate is larger, requires PCB layout change. | ||
| Dominant Wavelength | 571 nm | 572 nm | 572 nm — Excellent color match. | ||
| Luminous Intensity | 18.0 - 71.0 mcd | 45 mcd | 45 mcd — Falls within target's typical range. | ||
| Voltage | 2.0 V | 2.0 V | 2.0 V — Identical forward voltage. | ||
| Viewing Angle | 130° | 140° | 140° — Slightly wider viewing angle is generally acceptable. |
The NationStar NCD2012C1 is a strong functional alternative with very similar color and electrical characteristics. However, it comes in a larger 0805 package and requires a PCB layout modification.