Currently, no ideal 1-to-1 alternative has been verified. A potential functional alternative is NCD0402B1, but it operates at a much lower current (5mA vs 30mA) and requires circuit review.
Best Alternatives to SZYY0402B
SZYY0402B is a standard blue LED in a 0402 surface-mount package, suitable for indicator applications. Finding a direct replacement requires matching the color, brightness, and electrical characteristics.
AI replacement insight
Electrical riskhigh
Mismatched drive current can lead to incorrect brightness or damage the LED.
Package risklow
The 0402 package is standard and widely available.
Can it be replaced directly?
No direct, drop-in replacement was found. The closest candidate requires significant electrical re-evaluation due to a much lower design current.
Best replacement path
Search for a 0402 blue LED rated for 30mA forward current with a forward voltage of ~2.6-3.2V and luminous intensity of 70-85 mcd.
Main risk
The main risk is electrical mismatch, specifically the forward current rating, which impacts brightness and component lifetime.
Recommended alternatives
Alternatives are being enriched. Analyze this part in PartGenie for the latest matches.
Alternative comparison matrix
| Feature / factor | SZYY0402B | NCD0402B1 | Alt 2 | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 0402 (1005 Metric) | 0402 (1005 Metric) | 0402 (1005 Metric) — Package size matches. | ||
| Color | Blue | Blue | Blue — Color matches. | ||
| Current | 30mA | 5mA (Test) | 5mA (Test) — Significantly lower test current, not a drop-in. | ||
| Voltage | 2.6V - 3.2V | 2.8V (Typ) | 2.8V (Typ) — Typical voltage is within target's range. | ||
| Luminous Intensity | 70-85 mcd @ 30mA | 30 mcd @ 5mA | 30 mcd @ 5mA — Not directly comparable due to different test currents. |