connection to the wire harness connectors it is envisioned that the junction box of the present invention also provides an improved heat sink over conventional devices such as bus bars and insulators that have an air gap between the circuits and insulators female connectors or terminals 103 may also be employed as part of the second polymeric portion of junction box 11 as is shown in fig3 and 6 for connection to the wire harnesses or electronic components fig6 shows the platable circuits formed to 34 wrap around 34 or be disposed on generally opposite surfaces of the insulated housing resin thereby creating a relatively flexible female terminal or receptacle having opposing tongues 67 to grip and electrically contact a blade 71 of fuse 17 male blades 117 are also received in integrally formed female connectors 103 entirely internal to the housing to electrically connect separate spaced circuit layers returning to fig3 bridges 111 or stitches are used in circuit board 51 to electrically connect together conductive circuits 65 on opposite sides of the first insulating polymeric portion passageways through first insulating polymeric resin portion 63 adjacent to the second polymeric portions may be required to allow the conductive coating to be plated on bridges 111 moreover pass through holes 115 are provided to allow conductive male blades 117 to extend through first insulating polymeric portion for connection to wire harnesses electronic components or other conductive circuits inside of junction box 11 male blades 117 may also have l or inverted l shapes to achieve circuit to circuit connections within junction box 11 electronic components 21 are affixed to circuits 65 of circuit board 51 and or housings 41 and 43 by reflow soldering or the like while the preferred embodiment of a junction box has.