High speed shielded coaxial contacts Amphenol M39029 76-425 for aerospace military and C4ISR systems
Product Overview
Amphenol Aerospace offers a comprehensive range of high-frequency and high-speed contacts designed for demanding applications, particularly within MIL-DTL-38999 circular connectors. These contacts, including Coaxial, Twinax, Triax, Quadrax, and Differential Twinax types, provide superior electrical performance, controlled impedance, and enhanced shielding capabilities. They are engineered for high data transfer rates, operation in high-frequency conditions (up to 40 GHz for some coaxial contacts), and are suitable for harsh environments found in military and commercial aviation, military vehicles, missiles, and C4ISR systems. Amphenol also provides complementary transition adapters and cable assembly services to ensure complete interconnect solutions.
Product Attributes
- Brand: Amphenol Aerospace
- Certifications: MIL-DTL-38999, MIL-DTL-5015, MIL-DTL-22992, SAE AS39029
- Material: Gold plated over nickel on mating parts (standard finish)
Technical Specifications
| Contact Type | Description | Sizes Available | Impedance | Frequency Range | Typical Applications |
|---|---|---|---|---|---|
| Coaxial Contacts | Shielded contacts for RF/microwave and shielded wire applications. Available with "Float Mount" technology for consistent microwave performance. | 4, 8, 12, 16 | 50 Ohm, 75 Ohm | DC to 40 GHz (Size 8) | RF/microwave, shielded wire applications |
| Twinax Contacts | Designed for protection from magnetic and electrostatic interference, suitable for Data Bus systems. | 8, 10, 12 | N/A (Shielded) | 0-30 MHz (Size 10/12), 0-20 MHz (Size 8) | Data Bus systems, MIL-STD-1553B |
| Triax Contacts | Provide additional shielding with three conductors for use with triax cable. | 8, 10, 12 | 50 Ohm, 75 Ohm | Size 12: 0-30 MHz, Size 10: 0-300 MHz, Size 8: 0-500 MHz | Shielded cable applications |
| Quadrax Contacts | Four inner contacts forming two matched impedance differential pairs, offering high data transfer rates and EMI compatibility. | 8 | 100 Ohm, 150 Ohm | Up to 1.25 GHz (standard), up to 6.5 Gbps per pair (Split-Pair) | Ethernet (100 Base-T, 1000 Base-T), Fibre Channel, IEEE1394B |
| Differential Twinax Contacts | Two inner contacts forming one matched impedance differential pair, for high data transfer rates and EMI compatibility. | 8 | 100 Ohm, 150 Ohm | Up to 1.25 GHz | High speed data transmission |
| PC Tail Contacts (Coax, Twinax, Triax, Quadrax) | Designed for direct attachment to printed circuit boards, offering cost-effective packaging solutions. | Various sizes (8, 10, 12, 16) | Various (e.g., 100 Ohm, 150 Ohm for Quadrax) | Varies by contact type | PCB integration, limited space applications |
| Transition Adapters (Quadrax, Differential Twinax) | Facilitate launching of controlled impedance signals to printed circuit boards. Available in threaded or cable-to-board styles. | Size 8 | 100 Ohm, 150 Ohm | N/A | PCB interconnection |
| Micro D-Twinax Transition Adapters | Miniature push-pull quick disconnect adapters for PCB interconnection. | N/A | 100 Ohm | N/A | High-speed twinax contacts to PCB |
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