Original Part
Alternative Part
1. SMDJ26A-HR Substitution Conclusion
The SMDJ26A-HR can directly replace the original part SMDLCE26-HR. All core parameters—including reverse standoff voltage, breakdown voltage, peak pulse current and power, as well as package—are identical. The main difference lies in the maximum clamping voltage: the SMDJ26A-HR clamps at 42.1V, which is lower than the original’s 43.1V. Under the same 71.3A surge current condition, the substitute provides a lower overvoltage protection level to downstream circuitry, offering improved protection without compromising the original design’s voltage margin. Therefore, the substitution is both feasible and beneficial.
2. SMDJ26A-HRA Substitution Conclusion
The SMDJ26A-HRA can also directly replace the original SMDLCE26-HR. All key electrical parameters and package are identical to those of the SMDJ26A-HR, including the superior maximum clamping voltage of 42.1V. The suffix “A” typically indicates a revision in non‑electrical characteristics such as manufacturing lot, packaging, or RoHS/environmental compliance, and does not affect the device’s primary protection performance. In terms of providing improved clamping performance, the SMDJ26A-HRA is equivalent to the SMDJ26A-HR and is fully suitable as a replacement for the original part.
Analysis ID: CD1A-4C6F000
Based on part parameters and for reference only. Not to be used for procurement or production.
SkyChip © 2026, Email: sales@skychip.com