IRKC81-18
Center-Tapped Positive CC Silicon Rectifier - RMS Isolation = 3500V at 50Hz.

From International Rectifier

@I(FM) (A) (Test Condition)251
@Temp (°C) (Test Condition)88
@Temp. (°C) (Test Condition)25
@t(w) (s) (Test Condition)8.3m
I(FSM) Max.(A) Pk.Fwd.Sur.Cur.1.68k
I(O) Max.(A) Output Current80
PackageTO-240AA
V(FM) Max.(V) Forward Voltage1.36
V(RRM)(V) Rep.Pk.Rev. Voltage1.8k

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