
YONGYUTAI
0402 orange LED candidate only if red color can be relaxed.
NCD0402R1 is a red 0402 indication LED. No pin-compatible replacement is proven from the reviewed candidates.
Vf and current test points differ.
0402 matches, but height/pads need check.
Passive LED, no firmware impact.
Kept options need FAE review.
No direct pin-compatible replacement is proven in this set.
Search for red 0402 LEDs near 620nm, 5mA, 1.8V, and verify polarity.
Candidate colors and test currents differ from NCD0402R1.

YONGYUTAI
0402 orange LED candidate only if red color can be relaxed.
| Feature / factor | NCD0402R1 | YLED0402O | YLED0402Y | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 0402 | 0402 | 0402 | 0402 — same nominal size; YLED0402Y: same nominal size | |
| Pinout | 2-pin LED | 2-pin LED | 2-pin LED | 2-pin LED — polarity not checked; YLED0402Y: polarity not checked | |
| Application | red 620nm | orange 598-608nm | yellow 584-594nm | orange 598-608nm / yellow 584-594nm — visible color shift; YLED0402Y: visible color shift | |
| Voltage | 1.8V | 1.8-2.3V | 1.8-2.4V | 1.8-2.3V / 1.8-2.4V — may need resistor change; YLED0402Y: may need resistor change | |
| Current | 5mA | 20mA | 20mA | 20mA — ratings not at same point; YLED0402Y: ratings not at same point | |
| Temperature | -30 to +85C | -40 to +85C | -40 to +85C | -40 to +85C — wider low temp; YLED0402Y: wider low temp |
No best direct alternative is proven here; look for a red 0402 LED near 620nm, 5mA, and 1.8V.