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M300 - 10A, 3mm pitch High-Reliability Connectors

M300 - 3mm pitch High-Reliability Connectors

Power Connectors with reliable performance in harsh applications

Compact Power in Harsh Environments

The M300 series is a 3.00mm pitch high-reliability, high performance connector range suited to aerospace, defense, industrial and other harsh environment applications.

It provides a choice of 3, 6 or 10 contact board-to-board, cable-to-board and cable-to-cable options for applications requiring up to 10A in a confined space. Featuring a rear wall to assist the backpotting for additional strain relief, the housings are designed with ‘scoop-proof’ mating requirements for added handling assistance.

Housings come with jackscrew fixtures to achieve vibration and shock performance, and are future-proofed with halogen-free, RoHS compliant materials.

Features of M300

Up to 10A per signal contact (all electrically loaded; 5A if 22AWG wire is used) at 3mm pitch Capable of a variety of power uses within a compact design, saving PCB real estate
Proven 4-finger contact design Maintains electrical continuity through high vibration and shock environments
Beryllium Copper Contact with -65°C to +175°C temperature range Rugged and durable connector design with proven track record
1,000 Mating cycles durability Suitable for both fit-and-forget and multiple testing and replacement cycles
Future-proofed material usage Halogen-free, PFOS-free, SVHC-free and RoHS compliant
Low outgassing properties Meets NASA outgassing requirements for vacuum or space usage
Full cable assembly options off-the-shelf Reduced delivery , fully tested assemblies with hassle-free installation


Markets and Applications

  • Aerospace, Defense & Security - Radar, avionics controls, guidance systems, UAVs, engine power management, vehicle electronics
  • Motorsport & Transport - Navigation, ERS controls, GPS and telemetry system
  • Space - Satellites & CubeSats, communications, launch systems, radar and communications
  • Industrial - Robotics, automation, drives & controls
  • Energy - Oil & Gas, renewable energy equipment

Specification Highlights

Highlights from the C048xx - M300 Component Specification:

Current rating 10A per contact (5A with 22AWG wire)
Voltage rating 600V AC/DC
Maximum Voltage 1800V AC/DC
Number of Mating Cycles 1,000
Temperature range -65°C to +175°C
Vibration 10G, 6 hours total


Range Options

  • Ready-made cable assemblies, single-ended, male and female available.
  • Scoop-proof female contacts - avoids accidental physical touch to the female contact mating face, by being recessed within the housing.
  • Choice of contacts for 18, 20 or 22AWG cable.
  • 3 points of polarisation to ensure correct mating orientation.

For more information on this compact power connector range in a high-reliability package, see the Useful Links on the top right.


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