Amphenol M28840521SB circular connectors with six keying options and multiple termination methods
Manufacturer:
Amphenol
Description:
Backshells and Cable Clamps RoHS
Category:
Backshells and Cable Clamps/Backshells and Cable Clamps
Specifications
Mfr. Part #:
M28840/521SB
Model Number:
M28840/521SB
Introduction
Product Overview
Amphenol PCD now offers a complete line of M28840 Circular Connectors according to MIL-DTL-28840. These precision-machined, highly reliable shipboard application connectors are designed to meet superior mechanical shock performance and 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.
Product Attributes
- Brand: Amphenol PCD
- Standard: MIL-DTL-28840
- Plating Options: Cadmium, Zinc Nickel & Tin Zinc (Commercial only)
- Keying Options: Six keying options (1, 2, 3, 4, 5, 6)
- Contact Termination: Crimp termination, rear insert and front release
- Backshell Types: Straight, 90, and 45
- Material (Shells, Coupling Nuts, Jam Nuts): Aluminum Alloy per ASTM B211, or Stainless Steel per AMS-QQ-S-763
- Material (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
- Material (Socket contact hood): Stainless Steel passivated
- Material (Insulators): High Grade Engineering Plastic
- Material (Contact Retention Clip): Beryllium Copper
- Material (Grommet Seal): Blended Elastomer
Technical Specifications
| Specification | Details |
|---|---|
| Current Rating (Size #20 contact) | 7.5A (20AWG), 5.0A (22AWG), 1.5A (28AWG), 1.0A (30AWG) |
| 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 |
| Contact Size | 20 |
| Wire Accommodation | AWG 20 to AWG 28 |
| Contact Type (Military P/N) | M39029/83-508 (Pin), M39029/84-509 (Socket) |
| Contact Type (Military P/N) | M39029/83-450 (Pin), M39029/84-452 (Socket) |
| Contact Type (Military P/N) | M39029/83-451 (Pin), M39029/84-453 (Socket) |
| Durability | 500 cycles (Meets SAE-AS39029, paragraph 3.5.9) |
| Contact Retention | Max. axial displacement 0.012 inch (0.30 mm) (Meets MIL-DTL-38999, paragraph 3.23) |
| Permeability | No greater than 2.0 (Meets SAE-AS39029, paragraph 3.5.1) |
| Vibration | No electrical discontinuity of 1 microsecond or greater (Meets SAE-AS39029, paragraph 3.5.10) |
| Salt Spray (Corrosion) | Withstand 48 hours without defects (Meets SAE-AS39029, paragraph 3.5.12) |
| Temperature Life | 1,000 hours without defects (Meets SAE-AS39029, paragraph 3.5.13) |
| Dielectric Withstanding Voltage | No evidence of breakdown or flashover (Meets SAE-AS39029, paragraph 3.5.19) |
| Workmanship | Uniform quality, free from foreign material, burrs, or sharp edges (Meets SAE-AS39029, paragraph 3.7) |
2411041626_Amphenol-M28840-521SB_C20055632.pdf
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