AT Machined Contacts

Copper Alloy Body, Harsh Environment, Power or Signal


Amphenol’s “AT” contacts are the result of cutting-edge engineering, drawing upon the established MIL-C-39029 technology that has long been a staple in military procurement. These contacts deliver unwavering reliability and exceptional performance, making them the perfect choice for demanding environments such as heavy equipment in industries like construction, mining, and agriculture.

Our contacts are crafted from a high-quality copper alloy and come in nickel-plated or gold-plated options, ensuring both durability and optimal conductivity. The socket is designed with a stainless steel hood that acts as a shield against probe damage, enhancing longevity.

With a maximum current rating of 13 Amps, these contacts are robust and dependable, meeting the rigorous demands of the Heavy Equipment market, especially when paired with J1939 connectors. When you need superior connectivity solutions, trust in Amphenol’s “AT” contacts to deliver unmatched performance and reliability.

Features & Benefits

No electrical or mechanical defects after 100 cycles of engagement or disengagement
Terminal shows no evidence of corrosion after exposure to 48 hours of salt spray per MIL STD
1344, Method 1001
Maintains continuity and exhibits no mechanical or physical damage during or while subject to sinusoidal vibration, having an amplitude of .060 inches double amplitude and the frequency varied linearly between limits of 10 to 2000 to 10 Hz with a maximum force of 20 G’s. No electrical.
Operating Temperature Range –40° / +125°CF/B
Thermal Shock –40° / +125°C, 100 cycles, 1 hour per cycle
No unlocking, unmating or other unsatisfactory result during or after 50 G’s in each of three mutually perpendicular planes. No electrical discontinuities longer than 1 microsecond.
MIL STD 202, Method 213, Condition “C”.


Current Rating
Up to 13A
Number of contacts
Cable O.D.
14 to 18 AWG
Wire size (mm²)
14 to 18 AWG
Contact plating
Nickel and Gold
Copper Alloy
Temperature range
–40° / +125°C

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Amphenol Industrial's product lines consist of rectangular, standard miniature, fiber optic, EMI/EMP filter, and a variety of special application connectors.

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