Original Part
Alternative Part
14.5V Clamp 41.4A Ipp Tvs Diode Through Hole DO-204AC (DO-15)
1. P6KE10A Substitution Conclusion
The P6KE10A is a fully acceptable substitute for the original part. Both devices share identical key electrical parameters—including reverse standoff voltage, breakdown voltage, clamping voltage, peak pulse power, and current—as well as package dimensions. Their core protection performance is therefore equivalent. The primary distinction is that the Littelfuse variant is marked for "mains line protection" as "Yes," whereas the original part is marked "No." This suggests the Littelfuse device may have been qualified to more stringent telecom or industrial power port surge standards (e.g., IEC 61000-4-5). In practice, this represents a beneficial enhancement, potentially offering more reliable suitability or certification advantages in AC line protection applications. It does not affect the direct drop-in replacement for basic functionality.
2. P6KE10A-E3/73 Substitution Conclusion
The P6KE10A-E3/73 is a fully acceptable substitute for the original part. Both devices are identical in all critical parameters and package, delivering equivalent protection characteristics. The only minor variation is that the Vishay part specifies a slightly higher peak pulse current (Ipp) of 41.4A, compared to 41A for the original. This provides a marginal positive performance headroom, resulting in slightly lower theoretical stress under identical surge conditions and potentially improved reliability. In actual circuit operation, this difference poses no negative impact. It does not hinder direct replacement and may offer a slight margin benefit.
Analysis ID: D1D2-E981000
Based on part parameters and for reference only. Not to be used for procurement or production.
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