amphenolpcd.com | M28840@amphenolpcd.com | (978) 624-3400

amphenolpcd.com | M28840@amphenolpcd.com | (978) 624-3400

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M28840 SHIPBOARD CONNECTORS

Overview

Amphenol, a leading manufacturer of connectors now offers complete line of M28840 circular connectors according

to MIL-DTL-28840. These shipboard application connectors are precision-machined, highly reliable, and meet superior

mechanical shock performances. These high-density connectors are designed and tested to withstand extreme

environmental conditions and demanding applications. Amphenol also offers the full range of backshells to support this

connector series.

• US Navy shipboard, surface craft and submarines

• Mission critical combat and communications systems

• Mobile tactical shelters electronic battlefield networks

• Mobile emergency telecommunications (MET) stations

• Deployable outdoors in harsh environments

Applications

Features

• Precision-machined to MIL-DTL-28840 specification

• Available in nine shell sizes: 11, 13, 15, 17, 19, 23, 25, 29 & 33

• Pin count - 7, 12, 21, 31, 42, 64, 92, 121 and 155

• Plating options – Cadmium, Zinc Nickel & Tin Zinc (Commercial only)

• Support connectors and kits with accessories

• Six keying options (1, 2, 3, 4, 5, 6) for both plugs and receptacles

• Contact size is 20 with wire accommodation options from AWG 20 to AWG 28

• Crimp termination, rear insert and front release contacts

• Complete line of straight, 90o and 45o backshells

Benefits

• Fully intermateable and interchangeable with any qualified M28840 connector

• Backshell designs for strain relief, EMI and environmental sealing

• Options to buy connector kitted with backshell and accessories

• Same application tool for all three types of contacts

MIL-DTL-28840 SHIPBOARD ELECTRICAL CONNECTORS

Performance Specifications

Performance Specifications

Current Rating

Size # 20 contact 20AWG 7.5A, 22AWG 5.0A, 28AWG 1.5A, 30AWG 1.0A

Test Voltage

1000 VAC RMS at sea level, test in accordance with EIA-364-20

Insulation Resistance

5000 megohms min. (at ambient temp) per EIA-364-21

Contact Resistance

Per SAE-AS39029

Opertaing Temperature

-55o C to +200oC

Fluid Immersion

Test method EIA-364-10

Shock

In accordance with MIL-S-901 grade A

Vibration

In accordance with EIA-364-28

Magnetic Permeability

less than 2.0 µ (Aluminum) ASTM-A342/A342M

Materials & Finishes

Materials & Finishes

Shells, Coupling Nuts, Jam Nuts

Aluminum Alloy per ASTM B211, or Stainless Steel per AMS-QQ-S-763

Contacts

Copper Alloy, 50 microinches Gold plated per ASTM B488 Type 3, Code C

Class 1 over nickel underplate per QQ-N-290

Class 2 Socket contact hood: Stainless Steel passivated

Insulators

High Grade Engineering Plastic

Contact Retention Clip

Beryllium Copper

Grommet Seal

Blended Elastomer

Plating

Cadmium, Zinc Nickel & Tin Zinc (Commercial only)

Contact Code

Type

Contact Specification

Contact Size

Acceptable Wire Size

Outside Ø of Finished Wire

Min.

Max.

F

Pin

M39029/83-508

20-20

24

22

20

1.02

(.040)

1.02

(.040)

G

Socket

MS39029/84-509

P

Pin

MS39029/83-450

20-22

26

24

22

S

Socket

MS39029/84-452

D

Pin

MS39029/83-451

20-28

32

30

28

E

Socket

MS39029/84-453