SRBH-06H1A1 Non-Isolated DC-DC Converters Bel Power Solutions SRBH-06H1A1 Non-Isolated DC-DC Converter provides up to 6A of output current. The highly efficient, high power density converter features excellent thermal performance. The output is closely regulated and the efficiency of 3.3VDC is typically 89% at full load. Bel Power Solutions SRBH-06H1A1 converter is ideal for remote on/off, input under-voltage lockout, over-current protection, and short circuit protection.