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Hot Bridgewire, EEDs & Initiators.

Hot Wire Bridge | Squib

PacSci EMC / Products / Hot Bridgewire, EEDs & Initiators

HOT BRIDGEWIRE

ELECTRO-EXPLOSIVE DEVICES


Hot Bridgewire Electro-Explosive Devices (EED) are used to provide high reliable critical functions across many industries. An EED converts electrical energy into chemical energy providing a gas or heat output. An electrical input is applied to the EED, heating a small wire, called a bridgewire, which is in contact with the pyrotechnic. The wire quickly heats to the auto-ignition temperature of the pyrotechnic or explosive material. The pyrotechnic material then reacts providing gas pressure and/or flame. The heat and flame can be used to ignite other explosives or propellants while the gas pressure can be used to perform work.

Frequently used names are: initiator, igniter, ignitor, detonator, squib, cartridge, or pressure cartridge.


EEDs refer to a broad family of devices that are utilized to accomplish:

  • ignition
  • initiation
  • release
  • severance
  • fracture
  • cutting
  • jettison
  • valving
  • switching
  • time delay
  • actuation

A few applications include: aircraft seat ejection, aircraft fire extinguishing, oil well perforating, demolition, launch vehicles, satellites, missiles and munitions, parachute release and electrical circuit breakers.

PacSci EMC has designed, manufactured, and qualified hundreds of EEDs for use on multiple platforms for commercial and military aircraft, missiles and munitions, space and launch vehicles, and deep underground oil field applications. PacSci EMC is currently in production of an initiator line that was qualified in 1976 and has been in continuous production since.

All-Fire, Typical
3.5 amps at 0.999 reliability at 95% Confidence level


No-Fire, Typical
1.0 amps / 1.0 watt, 0.001 probability to fire at 95% lower confidence


Operating Temperature Ranges
As low as -420°F for PSEMC’s Space Initiator
AS high as +400°F for PSEMC’s GreenDetTM


Ordnance Output
Deflagration – Tailored peak output pressure performance
Detonation – Tailored dent depth in steel or Al dent block


Electrostatic Discharge, Typical
25 kVDC from a 500 pF capacitor with a 5000 ohm series resistor


Applicable Standards
MIL-DTL-23659 Initiators, Electric, General Design For; Appendix A: In-Line Initiator Certification

MIL-STD-1512: Electroexplosive Subsystems, Electrically Initiated, Design Requirements and Test Methods

DOD-E-83758: Explosive Ordnance for Space Vehicles, General Specification for

RCC-319: Range Commanders Council Flight Termination Systems Commonality Standard

MIL-STD-1576: Electroexplosive Subsystem Safety Requirements and Test Methods for Space Systems

103377 Family of Initiators


ENVELOPE / INTERFACE DIMENSIONS

Many features, such as the connector, thread, length, single or dual bridgewire, output, and other features can be customized to meet customer applications.


PacSci-EMC-10337-500-Envelope


ELECTRO-EXPLOSIVE DEVICES

HNS INITIATOR

Percussion Fire Detonator

LPI-Lanyard-Pull-Initiator

LANYARD PULL INITIATOR

Single and multiple output

DETONATOR BOOSTER ASSEMBLY

Convert high energy on command.

PERCUSSION PRIMER

Ignite various detonating and extender delay fuses.

IMPULSE CARTRIDGES

Meet critical elements for counter measures.

PRESSURE CARTRIDGES

efi_product

PYROTECHNIC INITIATOR

Initiators, exploding foil initiator (EFI), slapper detonator, 103377-500 Initiator, Umbilical Disconnect

Exploding Bridgewire EBW

FIRE EX CARTRIDGE

Squibs

DETONATORS

RF safe detonator, Green DetTM, exploding bridgewire (EBW) detonators, green energetic pyrotechnic time delay fuse (CLCP)


ENABLING MISSION SUCCESS

WHAT IS A FLIGHT TERMINATION SYSTEM?

Essentially, if a missile or space launch vehicle flies on a range in the United States, it must have a flight or thrust termination system (FTS).

Learn More


LET US HELP

Need more information or have a specific requirement you would like us to meet?
Contact us at the link below, or for immediate assistance call 888.995.5659.

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