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McMurdo HE801 (127 Series)

LF and Coaxial Military PCB Connector for Extreme Conditions

The 2 row, signal or mixed-layout HE801 two part printed circuit board connector system utilises a 1.27mm(0.05in.) staggered pitch with 2.54mm(0.1in.) between rows and were designed to meet the severest of environmental technical requirements in ground and air applications.

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Description

Description

LF and Coaxial Military PCB Connector for Extreme Conditions

The 2 row, signal or combination HE801 two part printed circuit board connector system utilises a 1.27mm(0.05in.) staggered pitch with 2.54mm(0.1in.) between rows. Designed to meet the severest of environmental technical requirements from fast jets to gun turrets they have featured on such military programmes as the A300/320, Ariane, Exocet, Ptarmigan, Rapier and also on railway rolling stock applications, where high resistance to abrasion and extreme reliability are critical.

Key Features

Key Features

  • Comprehensive product range – l.f. and mixed layouts
    Low and high frequency contacts. All contacts removable and replaceable.
    l.f. terminations include solder, p.c. straight and 90° preserved impedance, twisted cable and p.c. straight and 90°
    Low and high power contacts. Power contacts provide up to 25A and coax inserts available for frequencies up to 2GHz.
    19 mould sizes up to 96 way l.f. and either 53 + 3 or 41 + 6 l.f./h.f.
  • Qualification Approved to all major specifications:
    BS 9525 – N0001 lss.2.
    BS 9525 – F0006, F00012
    BS 9525 – F0027, F0041 and MIL-C-55302 / 140-155
  • Approvals include additional random vibration with superimposed gunfire with interrupts less than 2 nanoseconds.
  • Listed in the MUAHAG (Cenelec) Preferred Parts List (PPL).
  • Covers and pin shrouds.
  • Wide range of termination styles and comprehensive choice of jacking and polarising. Polarising facilities l.f. 36 position h.f. 36 or 16 positions. Jacking facilities, including 1/4 turn locks.
Specifications

Specifications

Electrical

  • Current
    Individual contact (in isolation) 1.5A max. @ 85ºC Tamb
    All contacts simultaneously 3A max. @ 25ºC Tamb
    1A max. @ 85ºC Tamb
    0.3A max. @ 125ºC Tamb
    High Power 15A max. @ 85ºC Tamb
    25A max. @ 25ºC Tamb
    10A max. @ 85ºC Tamb
    Coaxial 0.5A max. @ 85ºC Tamb
  • Working voltage sea level (1013 mbar) 250Vdc or ac peak
  • Proof voltage sea level (1013 mbar) 1000Vdc or ac peak
    8500m (300 mbar) 250Vdc or ac peak
  • Contact Resistance
    (initially) 10mΩ max.
    High Power 1.5mΩ max.
    Coaxial inner 12mΩ max. outer 6mΩ max.
    (after conditioning) 15mΩ max.
    High Power 3mΩ max.
    Coaxial inner 16mΩ max. outer 8mΩ Sign max
  • Insulation Resistance (initially) 5GOhm min. at 500V
    (after conditioning) 100MΩ min.
  • Frequency Range 0-500MHz.
  • Impedance 50Ohm nom.
  • Reflection Co-efficient 0.13 max.
    (preserved impedance 10-500MHz)

Mechanical

  • Operations 500 cycles
  • Engaging/Separation Force (per contact pair)
    1N max. 0.2N min.
    High Power 5N max. 1N min.
    Coaxial 10N max. 2N min
  • Contact Retention in moulding 20N (wire wrap 30N) 50N
  • Contact Holding Force 0.15N min.
    High Power 0.4N min.
    Coaxial inner 0.15N min.
    Coaxial outer 0.3N min.
  • Contact plating gold

Environmental

  • Classification 55/125/56
  • Vibration severity
    General ~ 10Hz to 2000Hz, 0.75mm/98m/s2 (10gn)
    duration 6h.
    Additional (BS9525 F0041) ~ 13.3Hz to 2000Hz random with superimposed sinusoids, duration 15 min. in each of 4 planes
    No intermittencies measured when using an H.S.L.I. Detector with trip threshold of 2 ns.
  • Bump severity 390m/s2 (40gn), 4000+/- 10 bumps
  • Shock severity 981m/s2 (100gn) for 6ms
  • Acceleration severity 490m/s2 (50gn).

Mould Sizes

A wide choice of mould sizes are available:

  • l.f. – 17, 29, 33, 41, 53, 65, 72, 84 and 96
  • Mixed layout – 5+3, 5+6, 0+7, 17+3, 17+6, 29+3, 41+3, 41+6, 53+3

Termination Styles (low frequency)

Available for both male and female covering PCBs of 1.6, 2.4 and 3.2mm thickness there is a choice of straight and 90 degree p.c., solder for wire, crimp (22-26 AWG) and wire wrapping. High power contacts are available with solder bucket, straight and 90 degree p.c.

Guides

A comprehensive range of guides is provided. These provide four functions i.e. fixing, jacking, guiding and positioning/polarising

Cross References

Crosses may be available to Hypertac, ATI and Amphenol Socapex series 127 connectors.

Applications

Applications

Designed to meet the severest of environmental technical requirements from fast jets to gun turrets they have featured on such military programmes as the A300/320, Ariane, Exocet, Ptarmigan, Rapier and also on railway rolling stock applications, where high resistance to abrasion and extreme reliability are critical.

The l.f./audio connectors are available in 9 sizes from 17 to 96 ways. The mixed layout styles provide the addition of 3 or 6 cavities capable of accepting either coaxial or high power inserts in 10 sizes from 5 + 3 to 53 + 3 combinations.
Also available are HE809/810, 3 row High Density models again mainly dedicated to aeronautic and military connector applications

Downloads

Downloads

HE 801 Connectors – McMurdo 2 part PCB