0-51902

About the 0-51902

The 0-51902 is a PCB board component manufactured by Reliance Electric for use within various drive systems made by the company.   In some cases, this component will have the Reliance logo. In others, it may be marked as an ABB (Asea Brown Boveri) or as a Baldor-Reliance product. The part should reflect the 51902 number in all cases. The 0-51902 functions as a Driver card within the Reliance system. This board is rectangular in shape, with a conductive backplane tab located on one long edge of the board. The opposite front edge is populated by twelve stab-on connectors. These are alternately labeled “red” or “white” and are also labeled with various number/letter combinations, for example, G-152 or K-55. The 0-51902 has:

• six transformers located in a single line
• each transformer lines up with:
  • two carbon composite resistors
  • a diode
  • an integrated circuit
  • a transistor
  • a disk capacitor
  • two polyester vinyl capacitors
• other resistors
• disk capacitors
• an open grid pattern across its entire surface

Components are not marked with reference designators, but many are marked with their manufacturer part numbers.