The 1N5364B is a Zener Diode with cathode band polarity.
**Zener Diodes 5W Surmetic, 1N5364 to 1N5388 Series, ON Semiconductor** A complete series of 5 Watt Zener diodes with tight limits and improved operating characteristics.
The 1N5364BG is a Surmetic™ 40 axial-leaded Zener Voltage Regulator with a void-free transfer-molded thermosetting plastic case, all external surfaces are corrosion-resistant and lead is readily solderable. The voltage regulator has tight limits and better operating characteristics that reflect the superior capabilities of silicon-oxide passivated junctions.