Original Part
Alternative Part
42.1V Clamp 71.2A Ipp Tvs Diode Surface Mount DO-214AB (SMC)
1. SMLJ26A-TP Substitution Conclusion
Based on core electrical parameters, package, and functionality, the SMLJ26A-TP can serve as a direct replacement for the 3.0SMCJ26A-HF. The key protection characteristics of both devices—including reverse standoff voltage (26V), minimum breakdown voltage (28.9V), maximum clamping voltage (42.1V), and peak pulse power (3000W)—are identical. A minor discrepancy of 0.1A exists in peak pulse current (71.3A vs. 71.2A), which is attributable to testing or marking tolerances and is considered negligible under the standard 10/1000μs surge test conditions, rendering the parts functionally equivalent. Furthermore, both utilize the DO-214AB (SMC) package, ensuring full PCB layout compatibility. The SMLJ26A-TP therefore provides a seamless drop-in replacement in terms of both circuit protection performance and physical installation.
2. TV30C260J-G Substitution Conclusion
The feasibility conclusion for the TV30C260J-G is identical to that for the original 3.0SMCJ26A-HF. This is because both parts are sourced from the same manufacturer (Comchip Technology) and all listed critical parameters—including 26V standoff voltage, 28.9V breakdown voltage, 42.1V clamping voltage, approximately 71.3A peak current, 3000W peak power, and the SMC package—are either perfectly matched or exhibit negligible marking variations. This typically indicates that the TV30C260J-G is likely a different series or branding for the same semiconductor die. Consequently, its electrical performance and physical characteristics are substantively equivalent to the original part, allowing for direct substitution without any modifications to the circuit design or board layout.
Analysis ID: 4BF1-3BFD000
Based on part parameters and for reference only. Not to be used for procurement or production.
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