NEC 104PW161 Inverter, TDK part number CXA-0308, 6918T, 104PW161-C, PCU-P113. Known to be used in many applications including GE MAC 5000 or MAC 5500 medical monitors. OEM Part Numbers: 2061540-001, 2073125-001.
104PW191 or 104PW191-D is also an alternate model and can be used. This model has increased operating temperature tolerance. All other specs are the same.