1500 W bidirectional TVS diode, AEC-Q101 qualified
The 1.5SMBJ48CA-H: AEC-Q101 qualification confirms the device meets automotive-grade reliability screening — junction temperature range from -55°C to 150°C suits under-hood and engine-bay environments where thermal cycling and surge stress are routine.
The SMB footprint is shared across the 1.5SMBJ family, so a single layout serves multiple voltage variants. Peak pulse current is 19.4 A under the 10/1000 µs condition — the clamping voltage at that current is 77.4 V, which defines the protection level for the downstream circuitry.
Sourcing and compliance
The 1.5SMBJ series shares the same package and footprint, so a different voltage variant within the family can serve as a functional replacement only if the standoff and breakdown voltages match the circuit requirement.