SMBJ15CA

SMBJ15CA is a bidirectional transient-voltage suppressor diode documented by Shenzhen Ruilon (RUILON) in DO-214AA (SMB), verified against the maker’s own manual row for this code. Verified figures: a 15.0 V reverse standoff, breakdown between 16.70 V and 19.20 V at 1 mA, maximum clamping of 24.4 V at a 24.6 A peak pulse current, reverse leakage of 1 µA maximum, 600 W peak pulse power, 5.0 W steady-state dissipation and a 100 A forward surge rating. The breakdown ceiling is the selection point: Ruilon’s 19.20 V upper limit is wider than the 18.50 V ceiling other makers print for this designation, and a protection design qualified at the edge of the clamp window has to be checked against the table of the maker actually supplied. Selection advice: because the same SMBJ15CA designation carries different breakdown windows between vendors, state the maker in the RFQ and never qualify a substitute on the standoff voltage alone. Note on attribution: the candidate pool labelled this line R+O (HongJiaCheng); the SMBJ figures in the evidence set are Ruilon’s, so this page is filed under Ruilon pending confirmation of the R+O brand attribution at review. Parameters verified against the RUILON SMBJ series datasheet.