Product Overview

M32139 Connectors

Aptiv Interconnect's (legacy website: www.ultimateconnector.com) M32139 connectors are engineered to meet military specifications for high-density, rectangular electrical connectors, providing a robust and reliable solution for signal and low-power applications. These connectors are ideal for demanding environments, ensuring quick and secure mating/unmating, strong resistance to vibration and shock, and environmental sealing against moisture and contaminants, Nano-D connectors provide maximum reliability per gram — combining the electrical robustness of Micro-D technology with half the footprint. They enable next-generation aerospace, defense, and space systems to achieve more functionality in less mass and volume, without compromising mission assurance.

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Features and Benefits

  • 0.025" (0.635 mm) contact pitch : roughly half the size of Micro-D (0.050"), enabling extreme miniaturization.
  • Contact counts from 9 to 85 positions : varies by layout and format
  • Rectangular, circular, and hybrid : variants available for flexible integration in board-to-board, cable, or panel-mount configurations.
  • Operating temperature: –55 °C to +125 °C standard (up to +200 °C for high-temp versions).
  • Terminations: Available in solder cup, PCB, crimp, or pigtail terminations.
  • Hermetic Sealing Options: Specialized versions for vacuum or pressure applications

Specifications, Parts, and Filters

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Contact Resistance
33 milliohm max contact only and 87 milliohms max with 6" wire @ 1A
Current Rating
1A max per contact
Dielectric Withstanding Voltage
250 VAC at sea level, 100 VAC at 70,000 feet, 1mA leakage current max
Insulation Resistance
100 VDC and 5000 Megohms min

Engaging Force
5 oz max
Separation Force
0.4 oz min
Vibration
EIA-364-28 Condition IV, 1 microsecond max discontinuity
Shock
EIA-364-27 Condition G, 1 microsecond max discontinuity
Durability
EIA-364-09, 200 matings
Salt Spray
EIA-364-26 Condition B – 48 hours

Signal Pin Contacts
C17410 Beryllium Copper per ASTM B768
Signal Socket Contacts
C17410 Beryllium Copper per ASTM B768
Contact Plating
Gold Plating per ASTM B488
PC Tails
C17410 Beryllium Copper per ASTM B768
PC Tail Plating
60/40 Tin/Lead plating per SAE-AMS-P-81728, or Gold plating per ASTM B488
Insulator Material
LCP (Liquid Crystal Polymer) GLCP-30F or PPS per MIL-M-24519 GST-40F
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