Original Part
Alternative Part
162V Clamp 2.5A Ipp Tvs Diode Surface Mount DO-214AC (SMA)
162V Clamp 2.5A Ipp Tvs Diode Surface Mount DO-214AC (SMA)
1. P4SMAJ100AS_R1_00001 Substitution Conclusion
Based on the provided core electrical parameters, package, and functional description, the P4SMAJ100AS_R1_00001 (Panjit) is a direct substitute for the original part P4SMAJ100A (Diotec). The two devices are identical in all key performance specifications: 100V reverse stand-off voltage, 111V minimum breakdown voltage, 162V maximum clamping voltage, 2.5A peak pulse current, and 400W peak pulse power dissipation. Both utilize the DO-214AC (SMA) package.
The only differences are the manufacturer and the "S" suffix in the part number. This suffix typically denotes the manufacturer's internal coding, lot/batch, or packaging method and does not affect the device's electrical characteristics or mechanical dimensions. From a purely technical and form-fit perspective, this substitution is viable. However, it is recommended to validate long-term reliability in the final application and to confirm whether the Panjit variant meets any implicit certification requirements (e.g., AEC-Q101) that may have been assumed in the original design.
2. P4SMAJ100A_R1_00001 Substitution Conclusion
The P4SMAJ100A_R1_00001 (Panjit) also meets the technical criteria for directly replacing the original P4SMAJ100A (Diotec). It shares identical key electrical parameters (voltage, current, power) and physical package with both the original part and the aforementioned AS variant.
The part number differences consist of the manufacturer prefix and the appended traceability code "_R1_00001", which are internal manufacturer identifiers. Compared to the AS variant, this part lacks the "S" suffix. In the context of TVS diodes, such a suffix variation usually does not indicate a difference in electrical performance. It is more likely related to non-functional attributes such as packaging format (e.g., tape vs. reel) or environmental compliance (e.g., lead-free designation).
From the standpoint of circuit protection and physical installation, this part is a direct replacement. Engineers should verify that its packaging specifications are compatible with production assembly processes. As with any substitution, confirming certification compliance is also advised.
Analysis ID: 5047-305E000
Based on part parameters and for reference only. Not to be used for procurement or production.
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