Is there a pin-compatible replacement for YLED0402Y?

Yes, parts like YLED0402O and NCD0402O1 are pin-compatible in the 0402 package. However, they are orange, not yellow, so they are not functional drop-in replacements. Always verify the color and brightness for your application.

What risks should I check before replacing YLED0402Y?

The main risks are color, brightness, and electrical ratings. Ensure the replacement's wavelength (color), luminous intensity (mcd), forward voltage, and forward current are compatible with your circuit design and application requirements.

YLED0402Y Alternatives, Datasheet & Cross Reference | YONGYUTAI

YONGYUTAI YLED0402Y is a standard yellow 0402 SMD LED. While no direct pin-compatible replacements have been identified, several functional alternatives in different colors exist that share the same package and electrical footprint.

AI replacement insight

Electrical riskhigh

Color (wavelength) is a critical electrical/optical property and does not match available candidates.

Package risklow

Standard 0402 package is common, and candidates match the form factor.

Sourcing riskmedium

While no direct cross is found, many yellow 0402 LEDs exist and should be evaluated.

Can it be replaced directly?

No direct, pin-for-pin replacement for the YLED0402Y yellow LED has been verified. Alternatives exist but differ in color (orange) and may require design review.

Best replacement path

The best path is to find another yellow LED in a 0402 package with similar forward voltage, current, and luminous intensity. YONGYUTAI's YLED0402O is a form-fit match but is orange.

Main risk

The primary risk is a mismatch in color (wavelength), which is critical for indicator applications. Luminous intensity and operating temperature should also be verified.

Recommended alternatives

Same manufacturer and package, but this is an orange LED, not yellow. Other parameters are well-matched.

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Alternative comparison matrix

Feature / factor	YLED0402Y	YLED0402O	NCD0402O1	Compatibility / risk
Package	0402	0402	0402	0402 — Package size matches.; NCD0402O1: Package size matches.
Manufacturer	YONGYUTAI	YONGYUTAI	-	YONGYUTAI — Same manufacturer, likely same product family.
Color	Yellow (584-594nm)	Orange (598-608nm)	Orange (~604nm)	Orange (598-608nm) / Orange (~604nm) — Candidate is orange, target is yellow.; NCD0402O1: Candidate is orange, target is yellow.
Luminous Intensity	70-175 mcd	85-210 mcd	25 mcd	85-210 mcd / 25 mcd — Comparable and slightly brighter range.; NCD0402O1: Significantly dimmer than target.
Temperature	-40°C to +85°C	-40°C to +85°C	-30°C to +85°C	-40°C to +85°C / -30°C to +85°C — Operating temperature range matches.; NCD0402O1: Narrower operating temperature range.
Current	20mA	-	25mA	25mA — Slightly higher forward current.

Application & sourcing insights

Questions & answers

Currently, no direct yellow replacement is listed. YLED0402O from the same manufacturer is a form-fit match but is orange. For a yellow replacement, search for 0402 LEDs with ~590nm wavelength, ~1.8V-2.4V forward voltage, and 20mA forward current.