Abstract:
An RF-shielding multicomponent metallic or metal-coated circuit housing (W, D) contains a printed circuit board (L), and a plug (S) which is connected to plug terminals (P) provided in the printed circuit board (L). A housing section (W) has a bay (E/B) which has metallic or metal-coated walls (B) which are at housing potential in the assembled state of the housing (W, D) and in which (E/B) the plug (S) is mounted. The bay (E/B) is open at one side face (M), the "open side face" (M), facing the inside (Q) of the housing, the bay (E/B) having edges (C) situated in a single plane and facing the open side face. The open side face (M) is covered by the printed circuit board (L) in the assembled state of the housing (W, D). The printed circuit board (L) is coated over a large area of its section (M) facing the bay (E/B) with a conducting layer (M) in such a way that strips of said layer (M) rest on the edges (C) in the assembled state of the housing (W, D) so that the layer (M) covers the bay (E/B) and the layer (M) is then at housing potential.
Abstract:
A ferrite toroidal core is inserted into an annular trough enclosed by a cap with a winding applied about the trough member which is then sealed by an envelope of resin. The trough member includes resilient tabs extending internally of at least one mutually concentric trough wall, the tabs having their free edges disposed against the toroidal core so that the core is fixed and centered within the trough and so that an air cushion is provided between the core and the trough wall.
Abstract:
Electrical noise filter with a filter housing, with electrical terminals led out at open face ends, in particular flat plugs, litz wires, plug pins, and with electrical components, in particular inductances and capacitances which, embedded in sealing compound, are installed in the filter housing and connected to the terminals. The filter housing is extended so that the terminal elements facing outwardly are disposed within the filter housing and shielded.