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An initiator assembly that includes a header body, at least one seal member, an insulating spacer, a frame member, an initiator and at least one terminal. The header body has at least one first terminal aperture formed therethrough. The seal member is received in the first terminal aperture. The ins

An initiator assembly that includes a header body, at least one seal member, an insulating spacer, a frame member, an initiator and at least one terminal. The header body has at least one first terminal aperture formed therethrough. The seal member is received in the first terminal aperture. The insulating spacer is received over the header body. The frame member overlies the insulating spacer and defines an interior aperture. The initiator is received in the interior aperture and is abutted against the insulating spacer on a side opposite the header body. The initiator has an exploding foil initiator and includes a plurality of initiator contacts. The terminal is received through the insulating spacer and the at least one seal. The terminal is disposed outwardly of the interior aperture and is electrically coupled to an associated one of the initiator contacts.

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1. An initiator assembly comprising: a header body having at least one first terminal aperture formed there through;at least one seal member, each seal member being received in an associated one of the at least one first terminal apertures;an insulating spacer received over the header body;a frame m

1. An initiator assembly comprising: a header body having at least one first terminal aperture formed there through;at least one seal member, each seal member being received in an associated one of the at least one first terminal apertures;an insulating spacer received over the header body;a frame member overlying the insulating spacer, the frame member defining an interior aperture;an initiator received in the interior aperture and abutted against the insulating spacer on a side opposite the header body, the initiator comprising an exploding foil initiator and including a plurality of initiator contacts; andat least one terminal received through the insulating spacer and the at least on seal, the at least one terminal being disposed outwardly of the interior aperture and electrically coupled to an associated one of the initiator contacts. 2. The initiator assembly of claim 1, wherein the exploding foil initiator comprises a bridge and a substrate, the bridge being electrically coupled to the initiator contacts, the bridge and the initiator contacts being fixedly coupled to a top surface of the substrate, wherein an area of the top surface of the substrate is less than 0.01 square inch. 3. The initiator assembly of claim 2, wherein the top surface has a size that is less than or equal to 0.08 inch×0.09 inch. 4. The initiator assembly of claim 3, wherein the substrate has a thickness that is greater than or equal to 0.02 inch. 5. The initiator assembly of claim 4, wherein the thickness of the substrate is greater than or equal to 0.03 inch. 6. The initiator assembly of claim 5, wherein the thickness of the substrate is greater than or equal to 0.04 inch. 7. The initiator assembly of claim 3, wherein the size of the top surface is less than or equal to 0.06 inch×0.07 inch. 8. The initiator assembly of claim 7, wherein the substrate has a thickness that is greater than or equal to 0.02 inch. 9. The initiator assembly of claim 8, wherein the thickness of the substrate is greater than or equal to 0.03 inch. 10. The initiator assembly of claim 9, wherein the thickness of the substrate is greater than or equal to 0.04 inch. 11. The initiator assembly of claim 7, wherein the size of the top surface is less than or equal to 0.06 inch×0.06 inch. 12. The initiator assembly of claim 11, wherein the substrate has a thickness that is greater than or equal to 0.02 inch. 13. The initiator assembly of claim 12, wherein the thickness of the substrate is greater than or equal to 0.03 inch. 14. The initiator assembly of claim 13, wherein the thickness of the substrate is greater than or equal to 0.04 inch. 15. The initiator assembly of claim 1, wherein the exploding foil initiator comprises a bridge and a substrate, the bridge being electrically coupled to the initiator contacts, the bridge and the initiator contacts being fixedly coupled to a top surface of the substrate, and wherein the substrate has a thickness that is greater than or equal to 0.02 inch. 16. The initiator assembly of claim 15, wherein the thickness of the substrate is greater than or equal to 0.03 inch. 17. The initiator assembly of claim 16, wherein the thickness of the substrate is greater than or equal to 0.04 inch. 18. The initiator assembly of claim 17, wherein the substrate is unitarily formed. 19. The initiator assembly of claim 1, wherein a terminal-to-initiator contact forms at least a portion of an electrical path that electrically couples the at least one terminal with a corresponding one of the initiator contacts. 20. The initiator assembly of claim 19, wherein the terminal-to-initiator contact is disposed on a side of the initiator opposite the insulating spacer. 21. The initiator assembly of claim 19, wherein a solder at least partly forms the electrical path. 22. The initiator assembly of claim 21, wherein the solder is disposed on a side of the initiator opposite the insulating spacer. 23. The initiator assembly of claim 21, wherein a hole is formed in at least one component of the initiator assembly, the hole being configured to permit visual inspection of the solder in the electrical path. 24. The initiator assembly of claim 1, wherein an adhesive bonds at least one of the frame member and the initiator to the insulating spacer. 25. The initiator assembly of claim 1, wherein the header body comprises a shoulder that defines a face that is perpendicular to longitudinal axis of the at least one terminal, wherein a cover is fitted over the header body, the cover having a rim that abuts the face and wherein the rim is welded to the shoulder to fixedly and sealingly couple the cover to the header body. 26. The initiator assembly of claim 1, wherein the exploding foil initiator comprises a bridge and a substrate, the bridge being electrically coupled to the initiator contacts, the bridge and the initiator contacts being fixedly coupled to a top surface of the substrate, and wherein the top surface is shaped as a quadrilateral.