Original Part
93.6V Clamp 16A Ipp Tvs Diode Surface Mount DO-214AB (SMC)
Alternative Part
1. SMCJ58A-HRAT7 Substitution Conclusion
From the perspectives of electrical parameters and package, the SMCJ58A-HRAT7 can serve as a full replacement for the original part. Its key specifications—reverse standoff voltage (58V), minimum breakdown voltage (64.4V), maximum clamping voltage (93.6V), and peak pulse power (1500W)—are identical to those of the original device. Only the peak pulse current shows a slight variance (16.1A vs. 16A), which falls within acceptable engineering tolerance and has no practical impact in application. Both components utilize the DO-214AB (SMC) package, ensuring full pin compatibility. The observed differences merely reflect minor nominal adjustments by a different manufacturer (Littelfuse) and do not affect the core transient voltage suppression functionality of the TVS diode. Direct substitution is therefore viable.
2. MSMCJ58A Substitution Conclusion
The MSMCJ58A is electrically and mechanically compatible as a direct substitute for the original part. However, it carries a Military-grade certification (MIL-PRF-19500), a key distinction not specified for the original component. Electrical parameters—including 58V standoff voltage, 93.6V clamping voltage, 16A peak current, and 1500W power rating—along with the DO-214AB package, are fully aligned. The military qualification implies stricter production standards, more rigorous reliability testing (e.g., temperature cycling, mechanical shock), and enhanced quality control processes. This makes the device suitable for high-reliability or harsh-environment applications. In the absence of specific environmental or certification requirements, this difference may lead to increased cost, but from a technical standpoint, substitution is feasible and may offer improved reliability.
Analysis ID: F253-D659000
Based on part parameters and for reference only. Not to be used for procurement or production.
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