Original Part
Alternative Part
1. SMDJ26A-HRA Substitution Conclusion
Based on core electrical parameters, package, and functionality, the SMDJ26A-HRA is a fully compatible substitute for the original SMDJ26A-E. Both devices are identical across all key specifications, including reverse stand-off voltage (26V), breakdown voltage (28.9V Min), maximum clamping voltage (42.1V @ Ipp), peak pulse current (71.3A), and power rating (3000W). They are also both unidirectional TVS diodes in an SMC (DO-214AB) package. The difference in suffix ("-E" vs. "-HRA") typically denotes non-performance-related manufacturing and supply chain information, such as product series code, packaging format, or environmental compliance marking, which does not affect the device's protection performance in-circuit. Given identical electrical design and PCB layout, the HRA variant is a viable drop-in replacement. However, it is recommended to verify the manufacturer's datasheet prior to volume substitution to confirm compliance with all necessary certification or reliability grade requirements.
2. SMDJ26A-HRAT7 Substitution Conclusion
The SMDJ26A-HRAT7 is also a fully feasible substitute for the original SMDJ26A-E in terms of electrical performance and package. All its critical parameters—26V stand-off voltage, 42.1V clamping voltage, 71.3A surge capability, and 3kW power rating—are identical to the original part. The minor suffix variation ("-HRAT7" vs. "-HRA") typically indicates reel packaging specifications (e.g., "T7" may denote a specific reel size, orientation, or quantity) or a traceability code. This is purely a marking related to production and logistics, with no impact on the device's electrical characteristics, reliability, or surface-mount assembly process. The SMDJ26A-HRAT7 can be used as a functionally and pin-compatible replacement for the SMDJ26A-E without circuit design modifications. The only consideration is to verify in material management and placement programming that its packaging format is compatible with existing production line equipment.
Analysis ID: D2D3-A51B000
Based on part parameters and for reference only. Not to be used for procurement or production.
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