Product Overview

MRAC Connectors

Aptiv Interconnect's MRAC connectors are a series of high-reliability electrical connectors designed for demanding rack and panel applications. Characterized by their rectangular form factor and the flexibility of removable contacts, these connectors are widely utilized in industrial, telecommunications, aerospace, and military sectors where space is at a premium. They offer a high number of contacts within a compact footprint and are engineered to withstand challenging operational conditions, simplifying wiring, testing, and troubleshooting through easy insertion, extraction, and replacement of individual pins or sockets. MRAC series connectors are the qualified design for the MIL-DTL-28748 specification, with removable contacts qualified to SAE AS39029/34 and /35 sheets.

MRAC Connectors product image

Features and Benefits

  • Removable Contacts: Easy insertion, extraction, and replacement of individual pin and socket contacts for simplified wiring, field repair, and circuit modification.
  • High Density: Numerous interconnections in a compact, rectangular form factor, optimizing space.
  • Rugged Construction: Durable materials for mechanical stability and reliable performance in demanding environments.
  • Positive Polarization: Polarized guides, screwlocks, and keying mechanisms ensure correct mating and prevent mis-mating.
  • Versatile Termination Options: Supports various contact termination types (crimp, solder, wire-wrap) and mating diameters for different current ratings.
  • Configurable Hardware: Dozens of options for personalization, including aligning guides, locking hardware, polarizing shells, mounting plates, gaskets, and protective hoods.
  • Ease of Assembly: Removable contact design simplifies wire termination and assembly, potentially reducing labor costs.
  • Intermateability: Compatible with industry standards or related series for broader application flexibility.

Specifications, Parts, and Filters

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Current Rating
Up to 13A (per contact, depending on configuration)
Insulation Resistance
5000 MΩ min
Dielectric Withstanding Voltage (DWV)
2000 VAC (sea level)
Contact Resistance
Determined by associated contacts

Mating Cycles
500 cycles
Contact Retention (Axial)
High retention force
Wire Sizes Accepted
28 AWG to 14 AWG
Shell Material
Aluminum Alloy, Steel
Contact Material
Copper Alloy
Insulator Material
Glass-filled Diallyl Phthalate
Number of Contacts
9 to 104 contacts
Polarization
Gold-plated guides, polarized shells

Operating Temperature
to +125∘C
Thermal Shock
MIL-STD-202, Method 107
Humidity
MIL-STD-202, Method 103
Salt Spray / Corrosion
MIL-STD-202, Method 101
Vibration
MIL-STD-202, Method 204
Shock
MIL-STD-202, Method 213

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