Amphenol M28840 624SB precision machined circular connectors with multiple pin counts and plating options
Product Overview
Amphenol PCD now offers a complete line of M28840 Circular Connectors, precision-machined to MIL-DTL-28840 specifications. These shipboard application connectors are highly reliable, meet superior mechanical shock performance, and are designed to withstand extreme environmental conditions and demanding applications. Amphenol also provides a full range of backshells to support this connector series. Applications include US Navy shipboard, surface craft and submarines, mission-critical combat and communications systems, mobile tactical shelters, electronic battlefield networks, and mobile emergency telecommunications (MET) stations. Key features include availability in nine shell sizes, multiple pin counts, various plating options, six keying options, and a complete line of straight, 90, and 45 backshells. Benefits include full intermateability and interchangeability with qualified M28840 connectors, backshell designs for strain relief, EMI, and environmental sealing, and options for kitted connectors with backshells and accessories.
Product Attributes
- Brand: Amphenol PCD
- Standard: MIL-DTL-28840
- Material (Shells, Coupling Nuts, Jam Nuts): Aluminum Alloy per ASTM B211, or Stainless Steel per AMS-QQ-S-763
- Material (Contacts): Copper Alloy
- Contact Plating: 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 Material: Stainless Steel passivated
- Insulator Material: High Grade Engineering Plastic
- Contact Retention Clip Material: Beryllium Copper
- Grommet Seal Material: Blended Elastomer
- Available Plating: Cadmium, Zinc Nickel & Tin Zinc (Commercial only)
- Keying Options: Six (1, 2, 3, 4, 5, 6)
- Contact Size: 20
Technical Specifications
| Specification | Details |
|---|---|
| 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 |
| Insulation Resistance | 5000 megohms min. (at ambient temp) |
| Contact Resistance | Per SAE-AS39029 |
| Operating Temperature | -55C to +200C |
| Shock | In accordance with MIL-S-901 grade A |
| Vibration | In accordance with EIA-364-28 |
| Magnetic Permeability | Less than 2.0 (Aluminum) |
| Shell Sizes | 11, 13, 15, 17, 19, 23, 25, 29 & 33 |
| Pin Counts | 7, 12, 21, 31, 42, 64, 92, 121 and 155 |
| Wire Accommodation | AWG 20 to AWG 28 |
| Contact Termination | Crimp, rear insert, front release |
| Backshells | Straight, 90, and 45 |
| Contact Type M39029/83 | Pin, Size 20 |
| Contact Type M39029/84 | Socket, Size 20 |
| Shell Size 11 Dimensions (A Thread) | .750-20 UNEF |
| Shell Size 33 Dimensions (A Thread) | 2.062-16 UNS |
2411041626_Amphenol-M28840-624SB_C20055662.pdf
