Original Part
Alternative Part
1. SMDJ58A Substitution Conclusion
The SMDJ58A can fully replace the original part 3.0SMI58A, as their key electrical parameters and package specifications are identical: reverse standoff voltage 58 V, minimum breakdown voltage 64.4 V, maximum clamping voltage 93.6 V @ Ipp, peak pulse current 32.1 A, peak pulse power 3000 W, and the same DO‑214AB (SMC) package. The only differences lie in the manufacturer (changed from SMC Diode Solutions to Littelfuse Inc.) and potential minor variations in supply chain sourcing, quality control standards, or industry certifications. Since the electrical performance is equivalent, these differences do not affect the circuit‑protection functionality, and the substitution is technically feasible.
2. SMDJ58A‑T7 Substitution Conclusion
The SMDJ58A‑T7 is also a suitable replacement for the original 3.0SMI58A, as all core electrical parameters (voltage, current, power) and the package (DO‑214AB, SMC) match the original part exactly. The suffix “‑T7” typically indicates a specific packaging form (such as tape‑and‑reel) intended to optimize automated surface‑mount assembly processes. This distinction relates only to physical packaging and assembly convenience; it does not alter the electrical characteristics or performance. Therefore, the substitution is technically sound and may even improve production efficiency.
Analysis ID: 9987-A235000
Based on part parameters and for reference only. Not to be used for procurement or production.
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