Low Mating Force Rectangular Connector Amphenol M55302 172 03 with ISO 9001 and AS9100 Certification
Product Overview
The Amphenol Bristle Brush Contact technology, featured in their Low Mating Force Rectangular Connectors, utilizes multiple strands of high tensile strength wires bundled together to create a superior electrical connection with exceptionally low mating forces. Proven in demanding applications such as military avionics and meeting MIL-DTL-55302 requirements, these connectors offer high density in tighter spacing, exceptional durability, and long contact life. They are ideal for applications requiring frequent mating and unmating, such as medical equipment, IC chip testers, telecommunications, military and commercial aviation, military ground vehicles, and GPS systems. The unique brush contact design provides redundant current paths, ensuring a gas-tight junction with 14-70 points of contact per mated pair, leading to stable, low resistance electrical connections.
Product Attributes
- Brand: Amphenol
- Technology: Bristle Brush Contact
- Series: Low Mating Force Rectangular Connectors (e.g., MIL-DTL-55302), HDB3, HSB3, Docking Connectors, Ruggedized Rack & Panel, LRM
- Origin: USA (Amphenol Aerospace, Sidney, NY)
- Certifications: ISO-9001:2008, AS9100 (Quality System)
- Material (Connector Body): Glass-filled thermoplastic molding material (MIL-M-24519 type GPT-15F and/or MIL-P-46161 Grade B, Class 15)
- Material (Contacts): Beryllium copper (wire), Copper alloy (holders)
- Material (Sleeves): Stainless steel
- Material (Polarization Keys): Glass-filled acetal plastic
- Material (Locking Screw/Mounting Bushing): Corrosion resistant steel (AISI 300 types)
- RoHS Compliant: Available (consult Amphenol Aerospace)
- Color: Standard is black for Docking Connectors, variety of other colors available
Technical Specifications
| Feature | Specification | Details |
|---|---|---|
| Contact Type | Bristle Brush | Multiple strands of high tensile wire, 14-70 points of contact per mated contact |
| Mating Force | Low | 70% to 90% reduction from conventional pin-socket; 1.5 oz. maximum per contact pair (1 oz. typical) |
| Durability | High | 100,000 mating cycles (even when hot swapped) |
| Contact Resistance | Low & Stable | 20 milliohms max.; stable, low resistance |
| Current Rating | 3 Amperes (PCB contacts) / 5 Amperes (wire wrap / crimp contacts) | Docking Connectors: Up to 5 amperes (termination dependent), 1 ampere max. hot swap |
| Temperature Rating | -65C to +125C | |
| Insulation Resistance | 5 gigaohms minimum | |
| Dielectric Withstanding Voltage | 750 volts @ 70,000 ft. | Docking Connectors: 750 volts @ sea level minimum, 250 volts @ 70,000 feet elevation minimum |
| Contact Spacing | 0.100 inch center to center (square grid) | HDB3 Series: .070 in. X .060 in. staggered grid; Docking Connectors: .0787 inch X .100 inch staggered grid |
| MIL-DTL Specification | MIL-DTL-55302 | Qualified for use on M1A2 Abrams, F-16 Falcon, F/A-22 Raptor, F-35 Lightning II, AIM-132 ASRAAM |
| Body Styles | Mother Board (MB), Daughter Board (DB), Input/Output (I/O), Printed Circuit (PC) | Four standard body styles |
| Contact Arrangements | 2, 3, and 4 rows | 10 to 100 contacts per row increments |
| Termination Options | Straight & 90 PCB stud, wire wrap & crimp | Front release/front removable (MB, DB, PC); Rear release/rear removable (I/O) |
| Polarization | Up to 256 keyed, mating polarizations available | |
| Hybrid Configurations | Signal, power, coax, fiber optic termini | Available in various combinations |
| Docking Connector Features | Radial Misalignment: .040; Angular Misalignment: 4 | |
| HDB3 Series Features | Higher density, compact height | .070 inch X .060 inch staggered grid spacing |
| HSB3 Series Features | High speed data rate | Up to 3.125 Gb/s via 100 ohm matched impedance differential pairs |
| LRM Features | High density, ESD protection, staggered grid, GEN-X grid | Data rates up to 10+ Gbps (VIPER) |
| Ruggedized Rack & Panel Features | Environmentally sealed, EMI/ESD protection | 126 B3 brush contacts, hybrid options available |
| Accessories | Polarization Keys, Locking/Mounting Bushings, Locking Screws, Test Probe Kits | Ordered separately |
2501081108_Amphenol-M55302-172-03_C20216235.pdf
