The 1336-BD-SP2A spare part is a diode that is manufactured by Allen-Bradley specifically to be used as a replacement part with the adjustable frequency drives of the 1336 series. The Allen-Bradley 1336-BD-SP2A diode is basically an electronic component compound of two terminals, which conducts current in one direction. This diode blocks any current that flows in the opposite direction. A diode has a similar function as a control valve but in an electrical sense. This feature becomes useful when it comes to rectifying AC voltage to DC voltage. The main components of the Allen-Bradley 1336-BD-SP2A diode supply include a rectifier unit, a bus supply over temperature sensors, DC chokes, input filter capacitors, common mode capacitors, a DC bus snubber circuit, and an MOV circuit.

The 1336-BD-SP2A diode is designed to operate at an ambient temperature range of 0 to 40 degrees Celsius (32 to 104 degrees Fahrenheit) without derating. In certain occasions, this diode might require a proper cooling device such as a fan to the front or top of the enclosure, in order to prevent the diode from overheating. Prior to installation, the whole system should be analyzed in order to install a proper cooling system that benefits not only the diode but the whole frequency AC drive. This cable length should also be analyzed to prevent certain electrical phenomena. The installation of the Allen-Bradley 1336-BD-SP2A diode should be performed by an expert to guarantee an optimum performance. Electrical devices should be handled very carefully since they can be easily broken and once they are installed they will determine the performance of the whole unit.