What the protection ratings mean for the board
The SMBJ54CA-13-F: The 60 V minimum breakdown voltage means the device starts conducting just above the rail, and the 87.1 V maximum clamping voltage at the 6.9 A peak pulse current (10/1000 µs waveform) defines the voltage the downstream circuitry must survive during a surge. The 54 V reverse standoff voltage is the maximum DC or AC peak voltage the diode blocks without conducting — match this to the nominal rail voltage, not the absolute maximum.
The base product number is SMBJ54, and the -13-F suffix denotes the tape-and-reel packaging variant.