Home > Products > Backshells and Cable Clamps >Backshells and Cable Clamps > Amphenol M28840 520WB connectors designed for secure and connections in combat communication systems

Amphenol M28840 520WB connectors designed for secure and connections in combat communication systems

Manufacturer:
Amphenol
Description:
Backshells and Cable Clamps
Category:
Backshells and Cable Clamps/Backshells and Cable Clamps
Specifications
Mfr. Part #:
M28840/520WB
Model Number:
M28840/520WB
Introduction

Amphenol M28840 Shipboard Connectors

Amphenol is a leading manufacturer of M28840 circular connectors designed for shipboard applications. These connectors are precision-machined, highly reliable, and meet superior mechanical shock performance standards. They are engineered and tested to withstand extreme environmental conditions and demanding applications, making them suitable for mission-critical combat and communication systems, mobile tactical shelters, electronic battlefield networks, and mobile emergency telecommunications stations. Amphenol also offers a comprehensive range of backshells for strain relief, EMI shielding, and environmental sealing.

Key Features & Benefits:

  • Precision-machined to MIL-DTL-28840 specification.
  • Available in nine shell sizes: 11, 13, 15, 17, 19, 23, 25, 29 & 33.
  • Pin counts range from 7 to 155.
  • Plating options include Cadmium and Zinc Nickel.
  • Six keying options available for both plugs and receptacles.
  • Contact size is AWG 20 with wire accommodation from AWG 20 to AWG 28.
  • Crimp termination, rear insert, and front release contacts.
  • Complete line of straight, 90-degree, and 45-degree backshells.
  • Fully intermateable and interchangeable with other qualified M28840 connector manufacturers.
  • Options to purchase connectors kitted with backshells and accessories.

Applications:

  • US Navy Shipboard surface craft and submarines
  • Mission-critical combat and communication systems
  • Mobile tactical shelters and electronic battlefield networks
  • Mobile emergency telecommunications (MET) stations
  • Deployable outdoors in harsh environments

Performance Specifications:

Specification Details
Contact Type Standard Duty Electrical Pin Contact (M39029/83) / Socket Contact (M39029/84)
Contact Size 20
Acceptable Wire Size AWG 20 to AWG 28
Max. Outside Dia. of Finished Wire 0.040" (1.02 mm) to 0.070" (1.78 mm)
Current Rating (Max.) 7.5A (20 AWG), 5.0A (22 AWG), 1.5A (28 AWG), 1.0A (30 AWG)
Test Voltage (Dielectric Withstanding Voltage) 1000 VAC RMS at sea level
Insulation Resistance 5000 megohms min. (at ambient temp)
Contact Resistance Per EIA-364-21
Operating Temperature -55C to +200C
Shock In accordance with MIL-S-901 grade A
Vibration Per test method EIA-364-10
Magnetic Permeability Per EIA-364-28 test procedure (Aluminum: 2.0)
Materials & Finishes Contacts: Copper Alloy, Gold plated. Shells, Coupling Nuts, Jam Nuts: Aluminum Alloy or Stainless Steel. Grommet Seal: Blended Elastomer. Insulators: High Grade Engineering Plastic.

Connector Models:

The M28840 series includes a wide range of connectors and accessories, including:

  • Receptacle Connectors: Wall Mount (M28840/10), In-Line (M28840/11), Box Mount (M28840/12), Jam Nut (M28840/14).
  • Plug Connectors: Basic Plug (M28840/16), with Straight Strain Relief Backshell (M28840/17), with 90 Strain Relief Backshell (M28840/18), with 45 Strain Relief Backshell (M28840/19).
  • EMI/RFI Backshells: Receptacle with Straight (M28840/20, M28840/21), Plug with Straight (M28840/26), 90 Adapter Assembly Plug (M28840/28), Plug with 45 (M28840/29).
  • Strain Relief Backshells: Straight (M28840/1), 90 (M28840/2), 45 (M28840/3).
  • Other Accessories: Back Shell for Metal Core Conduit (M28840/5), EMI/RFI Environmental Backshell (M28840/6, M28840/8, M28840/9), EMI Conduit Adaptors (M28840/25, M28840/27), Metal Conduit Coupler (M28840/30), E Nut (M28840/23), Dummy Storage Receptacle (M28840/7), Protective Receptacle Cover (M28840/13), Protective Plug Cover (M28840/15), Mounting Gasket (M28840/24), Metal Conduit Bushing (M28840/22).

2411010955_Amphenol-M28840-520WB_C20055631.pdf

Send RFQ
Stock:
MOQ: