NCD1608C1
Ningbo Songle Relay Co., Ltd.
Needs validationlow risk
Strongest match with identical package, wavelength, and forward voltage, but is significantly brighter.
Best Alternatives to LTST-C190GKT
LTST-C190GKT is a standard 0603 green LED. While several alternatives exist in the same package, key parameters like color wavelength, forward voltage, and brightness must be carefully reviewed before substitution.
AI replacement insight
Electrical riskmedium
Forward voltage can vary, requiring resistor changes.
Package risklow
0603 package is highly standardized.
Sourcing risklow
Many 0603 green LEDs are available, but parameters vary.
Can it be replaced directly?
Direct replacement for LTST-C190GKT should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
Best replacement path
Start with NCD1608C1, verifying its higher brightness is acceptable. If not, other functional alternates will require circuit and visual redesign.
Main risk
The primary risk is a mismatch in visual characteristics (color shade and brightness) and electrical parameters (forward voltage), potentially requiring circuit changes.
Recommended alternatives
2Alternative comparison matrix
| Feature / factor | LTST-C190GKT | NCD1608C1 | FC-1608G1-520 | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 0603 (1608 Metric) | 0603 (1608 Metric) | 0603 (1608 Metric) | 0603 (1608 Metric) — Package size matches.; FC-1608G1-520: Package size matches. | |
| Wavelength | 569 nm | 569 nm | 527 nm | 569 nm / 527 nm — Color wavelength is an exact match.; FC-1608G1-520: Different shade of green (true green vs. yellow-green). | |
| Voltage | 2.1 V | 2.0 V | 3.0 V | 2.0 V / 3.0 V — Forward voltage is very close, likely no resistor change needed.; FC-1608G1-520: Higher forward voltage requires series resistor change. | |
| Luminous Intensity | 6.0 mcd | 24 mcd | 260 mcd | 24 mcd / 260 mcd — Candidate is 4x brighter, which may be an issue.; FC-1608G1-520: Candidate is extremely bright in comparison. | |
| Viewing Angle | 130° | 120° | - | 120° — Slightly narrower viewing angle. | |
| Temperature | -40°C to +85°C | -30°C to +85°C | - | -30°C to +85°C — Slightly narrower operating temperature range on the low end. |
Application & sourcing insights
Questions & answers
Verified drop-in options for LTST-C190GKT are limited in the current batch. Review candidates marked Strong match or Datasheet verified, and validate package, pinout, and electrical limits before committing a BOM change.