The FSA1156L6X from onsemi is a single SPST-NO analog switch Integrated Circuit with a 1:1 configuration and 900 mΩ resistance, in a 6-MicroPak package.
The FSA1156P6 from Fairchild Semiconductor is an Integrated Circuit switch with 1 circuit, 1:1 configuration and 900 mΩ resistance, in an SC-88 (SC-70-6) package.