Original Part
Alternative Part
18.2V Clamp 82.4A Ipp Tvs Diode Surface Mount DO-214AB (SMCJ)
1. Substitution Conclusion for 1.5SMC13A
From the perspective of core electrical parameters and package, the Littelfuse 1.5SMC13A can serve as a direct, fully functional replacement for the original YAGEO part. All key specifications are identical, including reverse standoff voltage (11.1V), breakdown voltage (12.4V), maximum clamping voltage (18.2V @ Ipp), peak pulse current (83.5A), and peak pulse power (1500W). Both components utilize the same SMC (DO-214AB) package. The part number is exactly the same, with differences limited to the manufacturer and potential internal suffix variations (e.g., /TR7), which typically denote non-technical attributes like tape-and-reel packaging. For circuit protection and performance, these two devices are directly equivalent substitutes.
2. Substitution Conclusion for 1.5SMC13A-E3/9AT
The Vishay 1.5SMC13A-E3/9AT is a viable, electrically compatible substitute for the original YAGEO part in the vast majority of applications. Core parameters such as voltage ratings (11.1V/12.4V/18.2V) and the power rating (1500W) are identical, and the package is the same. The only minor deviation is Vishay's specified peak pulse current (Ipp) of 82.4A, which is slightly lower than the original's 83.5A. However, this 1.3% difference falls well within typical engineering tolerances. Furthermore, it is inherently linked to the shared 1500W power rating and 18.2V clamping voltage (Ppp = Vclamp Ipp), rendering it negligible in practical terms. The suffix "-E3/9AT" generally indicates lead-free compliance, environmental standards, and specific packaging, none of which affect electrical characteristics. This part is a suitable alternative.
Analysis ID: 0D9F-6379000
Based on part parameters and for reference only. Not to be used for procurement or production.
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