1.5SMCJ28CA-AQ transient voltage suppressor — clamping parametrics
The wide junction temperature range of -50°C to 150°C (TJ) places this part squarely in the automotive thermal envelope — it survives engine-bay and chassis-zone thermal profiles without derating to a lower temperature grade.
Package, mounting, and automotive qualification context
The SMC (DO-214AB) surface-mount package is the standard automotive TVS footprint — the cathode band marking identifies polarity on the reel. The strip packaging option confirms unit-per-pack dispatch, not full reel; reel quantities and full-reel MOQs are confirmed at quote time. The 'AQ' automotive suffix on this Diotec part aligns with automotive procurement practice, though the evidence does not confirm a specific AEC-Q qualification class. For AEC-Q100 or AEC-Q101 screen classes required by some OEM screening programs, the component engineer should confirm the exact lot qualification level with Diotec directly — particularly the temperature cycling and humidity bias screening records.
Sourcing posture — active production, independent distribution
Diotec Semiconductor lists the 1.5SMCJ28CA-AQ as Active — this is a current-production part suitable for new automotive designs, not a last-time-buy candidate. The Diotec brand maintains independent distribution supply, and this part is quoted to order against BOM quantity with availability and lead time confirmed at RFQ.