MIL-DTL-23659F
initiators covered by this specification are designed specifically for military use, and have no
commercial applications.
6.2. Acquisition requirements. Acquisition documents must specify the following:
a.
Title, number, and date of the specification.
b.
Issue of DoDISS to be cited in the solicitation, and if required, the specific
issue of individual documents referenced (see 2.2.1).
c.
Packaging requirements (see 5.1).
6.3. Definitions. For purposes of this specification the following are definitions of items
or terms pertaining to electric initiators.
6.3.1. Initiator. Any single discrete unit, device or subassembly whose actuation is
caused by the application of electric energy which in turn initiates an explosive, propellant, or
pyrotechnic material contained therein. The term "initiator" does not include complete
assemblies which have electric initiators as subassemblies but includes only the subassemblies
themselves. The following are definitions of typical examples of electric initiators.
6.3.1.1. Hot Wire Initiator. Any initiator whose bridgewire is heated by the direct
application of electric energy to effect initiation.
6.3.1.2 Exploding Bridgewire Initiator. An initiator whose bridge wire must be vaporized
in a few microseconds (usually five or less) by the direct application of electrical energy in order
to effect initiation.
6.3.1.3. Conductive Mix Initiator. An initiator in which the bridge consists of a
conductive explosive, propellant or pyrotechnic material which is in direct contact with the
initiator contacts. Actuation is caused by passing current through the conductive material
thereby heating it directly.
6.3.2. Bridge. A resistive element (usually in the form of a wire used to span the gap
between two contacts) through which electric energy is converted to heat (also light and shock in
exploding bridges) for the purpose of initiating an explosive, propellant, or pyrotechnic material
directly.
6.3.3. Contact. That part of the bridge circuit, usually in the form of a wire or small
metal rod, which serves to complete the electric circuit between the bridge and the electric
connector of the power source.
6.3.4. Bridge Circuit. The open circuit containing the bridge, contacts and electric
elements permanently in series or parallel with the bridge circuit. It does not include any electric
elements connected externally to the contacts such as shorting or firing leads.
6.3.5. Bridge Circuit Gap. A non-linear resistive element, usually in the form of a spark
gap or semiconductor, which forms a part of the bridge circuit and which limits the bridge circuit
current until a potential equal to or greater than the bridge circuit gap breakdown is applied to the
circuit.
6.3.6. Output. A measurable parameter, such as pressure, current, voltage, resistance,
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