The SB201-1 and SB201-2 have a common PCB and only differ in which components are mounted and the silk screen. They will be commonly referred to as SB201 in this document unless differences exist.
The SB201 consist of three parts, the edge connector, the main area and the connector and support area. The main area contains all the circuitry needed in a battery pack design.
Figure 1. SB201 Block layout
