1251-4478

Technical Characteristics

• Body Style

  4q straight edge type w/mounting flange

• Unthreaded Mounting Hole Diameter

  0.125 inches nominal

• Board Accommodated Width

  0.054 inches minimum and 0.071 inches maximum

• Mating End Quantity

  1

• Contact Removability

  nonremovable single mating end single contact grouping

• Contact Maximum Current Rating In Amps

  5.0 single mating end single contact grouping

• Polarization Method

  contact to contact polarizing keys

• Connector Locking Method

  friction

• Terminal Location

  back single mating end single contact grouping

• Contact Material

  copper alloy single mating end single contact grouping

• Contact Surface Treatment

  gold single mating end single contact grouping and nickel

• Terminal Type

  tab, solder lug single mating end single contact grouping

• Contact Material Document And Classification

  qq-b-750 fed spec single material response single mating end single contact grouping

• Included Contact Type

  bifurcated spring single mating end single contact grouping

• Precious Material And Weight

  0.072 gold grains, troy

• Precious Material

  gold

• Overall Length

  5.214 inches nominal

• Overall Height

  0.656 inches nominal

• Overall Width

  0.438 inches nominal

• Distance Between Mounting Facility Centers

  4.964 inches nominal

• Board Accommodated Length

  4.532 inches nominal single board

• Contact Position Arrangement Style

  aaaf 2 rows of independent contacts inserted board single mating end

• Contact Maximum Ac Voltage Rating In Volts

  1800.0 single mating end single contact grouping

• Insert Material

  plastic phenolic single mating end

• Included Contact Quantity

  72 single mating end single contact grouping

• Precious Material And Location

  contact surfaces gold