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