Jun 30, 2026
An exploding foil initiator (EFI) assembly includes: a housing assembly, having a base, one or more elongated supports spaced about a circumference of the base extending axially away from the base, and protuberances extending radially-inwardly toward a central axis; a spring configured to compress a leadframe, an insulator, a pellet sleeve, and an explosive pellet; and a retainer cap with a surface that abuts the spring that releasably engages the protuberances and compresses the spring while engaged with the protuberances.
May 19, 2026
A fuse assembly that includes a low energy exploding foil initiator (LEEFI) located in a housing thereof. The LEEFI is supported in the housing by a sleeve made of a compliant material that protects the LEEFI by dampening shocks and vibrations applied to the housing. At least a portion of the LEEFI is press-fit into the sleeve such that an interference fit exists between an outer cylindrical wall of the LEEFI casing and in inner wall of the housing. The sleeve includes a latch assembly at one end having a plurality of tabs that are circumferentially spaced-apart from one another. Each of the plurality of tabs includes a cantilever beam having a head, the head including a bottom surface pressed against a top surface of the external annular flange of the LEEFI casing.
