4″ TO-3Heat Sink
• Not including mounting tabs, this measures 4″ long, 3″ wide and 1-1/4″ high.
• With fins oriented vertically in cabinet sidewall applications, this heat sink
is recommended for critical space applications where maximum heat dissipation is required
for high-power TO-3 case styles. Forced convection performance is also exemplary with these
double surface fin types.