Compact circuit package having improved circuit connectors

A package for a circuit including control circuitry and power circuitry, said package comprising:

• a housing including a base plate surrounded by a peripheral wall to form a circuit receiving receptacle;
• a first substrate positioned in said receptacle with one side adjacent the interior side of said base plate and the other side containing the control circuitry, said substrate having a first set of electrical leads extending from said substrate;
• a second substrate positioned in said receptacle adjacent a rim of said peripheral wall and closing the receptacle of said housing, said second substrate being spaced from said first substrate in said housing and having the power circuitry on a first side facing said first substrate and a heat transmitting second side oppositely disposed from said first side for dissipating heat from said circuitries, said second substrate having a second set of leads extending from said substrate, said power circuitry having power input and output terminals mounted thereon and protruding through the exterior side of said base plate;
• and
• a plurality of recessed cells in said base plate extending through said base plate and opening on the exterior side thereof, selected leads of said first and second sets positioned within and surrounded by selected ones of said recessed cells to engage external connector means inserted in said cells for interconnection within external electrical circuits, other selected leads of said first and second sets being commonly positioned within selected ones of said recessed cells, said commonly located leads being electrically coupled for interconnecting the circuitries of said first and second substrates together and engageable with external connector means inserted in said cells.