The electronic Ignition Safety Device (eISD) contains an integral Exploding Foil Initiator (EFI) co-located in the same mechanical package, and therefore is close coupled (extremely low inductance and resistance) for extremely high reliability functioning. The eISD is part of a distributed Electronic Safe and Arm Device (ESAD) with one Central ESAD and multiple Remote eISDs. The remote eISDs are Arm/Fire devices that receive a high voltage low current input from the central ESAD and charge up the high voltage circuitry to a desired voltage, then when commanded, eisd discharges this energy into an EFI. We have an EFI design that includes an internal Thru Bulkhead Initiator (TBI) capable of withstanding rocket motor back-pressure after functioning. The eISD includes High Side Static P-Channel Switch, Low Side Static N-Channel Switch and an N-Channel Dynamic switch to comply with MIL-STD-1901A. These inhibits are unique to meet the safety board requirements. The dynamic inhibit is controlled by the proper sequence of the other two inhibits. A communication bus is utilized to select the appropriate remote ISD to function. Each networked bus allows for up to 48 multiple point remote eISDs to be connected. Each eISD is independently Armed and Fired with very precise timing of events. The unique inhibits can be controlled from Acceleration, Break-wires, switches etc. Our designs can be completely interchangeable with most standard legacy ISD designs.

Utilized with our Bulk Destruct Charge or Linear Shaped Charge, our fully electronic device interfaces with a flight termination receiver, or mission controller, through a customizable input connector. This device outputs a high voltage firing current to initiate single or dual Low Energy Exploding Foil Initiators (LEEFIs). Our ESADs can be integral with the LEEFI energetic output or can initiate the LEEFIs through a high voltage flex tip. Also referred to as a high-energy electronic initiator firing unit, this device meets safety board requirements by incorporating two unique inhibits that must be satisfied prior to firing. Both “armed on the ground” and “armed after safe separation” approved variants are available. This is the only Safe and Arm Device (SAD) considered to be an “In-Line” SAD. Sandia developed an enabling technology in the 90s called an “Exploding Foil Initiator” which does not depend on heat to ignite the pyrotechnic. Instead it uses an insensitive secondary explosive which is directly initiated with a high velocity detonation impact. The high velocity flyer is generated by discharging very high current (>1000A) through a small reactive semiconductor which then explodes and propels a tiny flyer at velocities greater the 3000m/s into the explosive pellet. Due to the insensitivity of this technology and the very specific electrical impulse required to fire it the US safety board community allowed for the use of an all electronic firing system without the need for mechanical/physical barriers. Arming requires 3 MOSFETs to close to charge the high voltage capacitor.

A pyro cutter uses energetic materials and a cutting blade to sever objects. It is a cartridge actuated device which, when initiated, will sever/cut a multitude of materials and cross-sectional shapes. Common targets used with ordnance cutting devices include: steel, electrical or fiber optic cables, aluminum, titanium, copper, Kevlar, vectran, zylon, bolts, tubes and woven fiber cords/lines and straps. The key factors for the cutter are the design of the cutter blade and the control of the cutting capacity to ensure that the bolts can be completely cut. The design of a pyrotechnic cutter is an actuating component of a hold-down and release device, and it consists of an igniter, a casing, a detonator, a shear pin, a sealing ring, a cutter, a cutting board, and an end cover.

Explosive bolts efficiently secure two objects and strategically explode, jettisoning those objects on command when commanded. These bolts initiate a perfect failure at the pivotal moment they need to. This part is designed for missile, launch vehicles, spacecraft and marine applications where rapid structure separation is demanded. Standard explosive bolts and ridge cut explosive bolts are available in a wide range of sizes, configurations and tensile capacities from as little as 200 pounds to as much as 1,000,000 pounds. As an explosive bolt manufacturer, our experts are here to support you in meeting your structural loading, envelope and environmental requirements and guide you on ways to mitigate shrapnel and products of combustion.