1500W surge clamp for 48V automotive rails
The 1.5SMBJ48A-H: This is the surge rating that defines the energy the device can absorb without failing — a 1500W TVS on a 48V bus handles transients from load-dump or inductive kickback in automotive and industrial 48V systems. The -55°C to 150°C junction temperature range covers under-hood and engine-bay environments where ambient temperatures exceed 105°C.
Package and board-fit for DO-214AA (SMB)
Housed in the standard DO-214AA (SMB) surface-mount package, the 1.5SMBJ48A-H uses the same footprint as other SMB-packaged TVS diodes — the cathode band marks the unidirectional orientation. Available in Tape & Reel (TR) and Cut Tape (CT) packaging, the part is suited for both high-volume pick-and-place assembly and prototype builds. The base product number 1.5SMBJ covers the full voltage range of the series; the -H suffix denotes the automotive-grade AEC-Q101 variant.
Sourcing and compliance for the 1.5SMBJ48A-H
The part carries AEC-Q101 automotive qualification, which includes compliance documentation for RoHS and REACH as standard for Bourns automotive-grade products.