AEC-Q101 bidirectional TVS for 28V automotive rails
The Panjit 1.5SMC33CA-AU_R2_000A1 is a bidirectional Zener transient voltage suppressor from the 1.5SMC-AU series, housed in a DO-214AB (SMC) package for surface-mount assembly. Its 28.2V reverse standoff voltage and 31.4V minimum breakdown voltage make it a direct fit for clamping transients on 24V automotive power buses, where the AEC-Q101 qualification guarantees the reliability screening expected for under-hood and chassis-mounted electronics.
The DO-214AB SMC footprint is a standard JEDEC outline for 1500W-class TVS diodes. Bidirectional construction means a single device clamps both positive and negative transients — useful on AC-coupled signal lines or power rails that see reverse battery events. No polarity marking is needed on the PCB silkscreen, simplifying assembly inspection.
The AEC-Q101 qualification means the device has passed the full suite of automotive stress tests: pre- and post-stress electrical verification, high-temperature reverse bias, temperature cycling, and ESD sensitivity classification. This documentation is available from Panjit upon request for PPAP submissions.