This listing shows two different types of Rectifier Diodes used in many applications like battery chargers and power supplies. The listed price is for one diode for quantity pricing please see listing # 205590560214 I have used these as direct replacements for the no longer available B7504A & B7504C. These are press into heat sink type. They are not exactly the same as the original but they fit and work well.
a. # B7504A cathode to case (white body) "most popular" quantity pricing please see listing # 205590560214 b. # B7504C anode to case (black body)
These are semiconductor devices that can be easily damaged they will be tested prior to shipping no returns for any reason.