Dura-Con Connectors
Product Overview
Cinch Dura-Con connectors are engineered for applications demanding rugged, durable, and high-performance interconnects, particularly where minimizing weight and space is critical without compromising reliability. These connectors are ideal for miniaturized airborne electronics and data processing equipment requiring shorter signal paths. The core of the Dura-Con system is the unique twist pin contact, featuring a precision miniature spring cable with seven spring members that ensure consistent contact under radial forces, offering excellent resistance to metal fatigue. Dura-Con connectors include MIL-C-83513 Series connectors and their commercial equivalents, providing a wide range of termination and hardware options for various wire and PCB mount configurations.
Product Attributes
- Brand: Bel/Cinch
- Product Line: Dura-Con
- Contact Technology: Twist Pin
- Certifications: MIL-DTL-83513 compliant (where specified)
- Materials: Aluminum alloy (metal shells), Polyester, Diallyl phthalate, LCP, Polyphenylene sulfide (insulators), Beryllium copper, Copper alloy (contacts)
- Plating: Cadmium with yellow chromate, Electroless Nickel, Gold, Tin
- Sealing: Silicone elastomer interfacial seal
- Applications: Networking, telecommunications, computing, military, aerospace, transportation, broadcasting, automotive, medical, consumer electronics.
Technical Specifications
Dura-Con Micro-D Connectors - Metal Shell
| Feature | Details |
| Positions | 9, 15, 21, 25, 31, 37, 51, 69, 100 |
| Termination Styles | Solder cup, insulated wire (#26 AWG), uninsulated wire (#25 AWG) |
| Shell Material | Aluminum alloy |
| Shielding | EMI/RFI shielding capability |
| Interfacial Seal | Silicone elastomer |
| Compliance | Designed for compliance to MIL-DTL-83513 |
| Contact Type | Rugged twist pin contacts |
Dura-Con Micro-D Connectors - Plastic Shell
| Feature | Details |
| Positions | 9, 15, 21, 25, 31, 37, 51 |
| Termination Styles | Solder cup, uninsulated solid wire (#25 AWG), insulated stranded wire (#26 AWG) |
| Shell Material | Economical all plastic shell |
| Shielding | No shielding required |
| Compliance | Designed for compliance to MIL-C-83513 |
| Profile | Low profile shell |
Dura-Con Micro-D Connectors for PCBs - Metal Shell
| Feature | Details |
| Positions | 9, 15, 21, 25, 31, 51, 100 |
| Mounting Styles | Straight mount (180), 90 right-angle mount, 90 right-angle narrow profile mounting |
| Shell Material | Metal shell |
| Shielding | EMI/RFI shielding capability |
| Interfacial Seal | Silicone elastomer |
| Compliance | Designed for compliance to MIL-C-83513 |
| Soldering | Flow-through design facilitates inspection and cleaning after soldering |
Dura-Con Hermetically Sealed Micro-D Connectors
| Feature | Details |
| Positions | 9, 15, 21, 25, 31, 37, 51, 100 |
| Mounting Styles | Straight and right angle mounted |
| Shell Material | Aluminum shell |
| Seal Type | Hermetic seal achieved through epoxy-metallic compound |
| Compliance | Performs to MIL-DTL-83513 |
Dura-Con High Temperature Metal Shell Micro-D Connectors
| Feature | Details |
| Operating Temperature | Plugs: continuously at 175C; Sockets: up to 200C |
| Positions | 9, 15, 21, 25, 31, 37 |
| Insulator Design | Specially designed with raised rib feature for shock (50 Gs) and high vibration (20 Gs) resistance |
| Mounting Options | Solder cups, wire leads, straight and 90 right-angle narrow profile PCB mounting |
| Compliance | Designed for compliance to MIL-C-83513 |
Dura-Con Strip Connectors
| Feature | Details |
| Contact Centers | 0.050" (24 ga.) |
| Profile | Extremely lightweight, slim profile |
| Density | High-density interconnect |
| Contact System | High-reliability Dura-Con twist pin contact system |
| Positions | 1 to 60 positions |
| Polarization | Optional polarization with guide pins |
Dura-Con Accessories
| Accessory Type | Description |
| Shielded Cable Assemblies | Meet MIL-DTL-83513 requirements, feature EMI gasket, braided sleeves, integrated backshell. |
| Connector Savers | Reduce damage to mounted connectors during system tests. Available in all-plastic or metal shell. |
| Micro-D Dust Covers | Protect contacts before mating. Available for all Micro-D sizes. Color-coded for plugs (blue) and sockets (red). |
| Micro-D Sealing Gaskets | Prevent moisture and dust ingress when connectors are mated. Installed on socket connectors. Made of silicone rubber. |
| Micro-D EMI Backshells | Multiple entry sizes, available for all Micro-D shell sizes. Aluminum alloy with electroless nickel plating. |
| Micro-D Strain Relief Backshells | Multiple entry sizes, available for all Micro-D shell sizes. Aluminum alloy with electroless nickel or cadmium plating. |
| Mounting Hardware | Jackscrews and Jackposts available per MIL-C-83513/05 specifications. |
Material Specifications (Appendix A)
| Component | Material |
| Metal Shell | Aluminum 6061, SAE AMS-QQ-A-250/11 (Blank), Cadmium Plating (N/A for RoHS), Nickel Plating (Electroless) |
| Plastic Shell | Polyester, 30% glass filled, black; Polyphenylene sulfide, MIL-M-24519, Type GST-40F, black; LCP, black |
| Insulator | Diallyl phthalate glass reinforced, green; Polyester, 30% glass filled, black |
| Contacts | Pins: Beryllium copper, gold plated; Sockets: Copper alloy, gold plated |
| Leads | Solder Cups: Copper alloy, gold plated; Wires: Silver coated copper (PTFE, ETFE, PTFE insulation) |
| PCB Tails | Solid copper wire, gold plated or SnPb Dipped |
| Interfacial Seal | Silicone rubber |
| Dust Cover | Low Density Polyethylene |
| Hardware | Passivated 300 series stainless steel |
Performance Specifications (Appendix B)
| Category | Specification |
| Environmental | Salt Spray: 48 hours; Fluid Immersion: Maintained performance; Thermal Cycling: -55C to 125C (5 cycles); Humidity: Performance drop noted; Vibration: 10-2000 Hz, 20g peak; Shock: 50g |
| Electrical | Current Rating: 3 Amps max.; Dielectric Withstanding Voltage: 600 VAC RMS (sea level), 150 VAC RMS (70,000ft); Insulation Resistance: 5,000 megohms min. |
| Mechanical | Contact Engaging Force: 6 oz max.; Contact Separation Force: 0.5 oz min.; Durability: 500 mating cycles |
Material Compliance (Appendix F)
- RoHS compliant parts include all plastic and nickel plated shells with solder cups and wire leads (compliant with Exemption 6(c) and 7(b)).
- Cadmium plated shells are not RoHS compliant.
