Durable Bel Fuse RFI75-4-D2 Miniature Twinax Triax Connector for Military and Aerospace Applications
Product Overview
Cinch Connectivity Solutions, through its Trompeter brand, offers a comprehensive range of high-quality, high-performance twinax, triax, and coax connectors and cable assemblies. With a legacy dating back to 1917, Cinch serves critical markets including Military/Defense, Aerospace, Communications, and Rugged Harsh Environments. Their custom solutions are engineered with expertise in various contact technologies, including fiber optic expanded beam and QPL-listed products. Trompeter's connectors are designed to meet or exceed stringent military specifications, such as MIL-C-49142, and are utilized in applications requiring reliable, noise-free guarded circuits, digital data bus communication (including MIL-STD-1553B), video pairs, and baseband circuits.
Product Attributes
- Brand: Trompeter (a Cinch Connectivity Solutions brand)
- Certifications: QPL to MIL-C-49142 (Category A & G)
- Material: Brass (bodies), Beryllium Copper (contacts), PTFE (dielectrics)
- Finish: Bright Nickel-plated (standard)
Technical Specifications
| Series/Model | Description | Key Features | Specifications |
|---|---|---|---|
| 70/370 Series (TRB/TRT) | Miniature Twinax/Triax Connectors | Concentric contacts, 2, 3, 4-lug, threaded, push-on, right-angle, hermetically sealed versions available. Meets MIL-C-49142. | Impedance: Non-constant Frequency Range: 0-500 MHz Voltage Rating (max.) @ sea level: 400 VRMS Durability: 500 cycles minimum Temperature Range: -65C to +165C |
| 150/3150 Series (TRS/TTM) | Subminiature Twinax/Triax Connectors | Concentric contacts, 3, 4-lug, threaded, push-on versions. High density, weight reduction. Hermetically sealed versions available. | Impedance: Non-constant Frequency Range: 0-500 MHz Voltage Rating (max.) @ sea level: 400 VRMS Temperature Range: -65C to +200C |
| 450 Series (Concentric Twinax) | Subminiature Twinax Connectors | Designed for MIL-STD-1553B airborne digital databus. 3-lug, 4-lug, threaded versions. Field installation, full crimp design. | Impedance: Non-constant Frequency Range: 0-2 MHz Voltage Rating (max.) @ sea level: 900 VRMS Temperature Range: -65C to 125C |
| 80/380 Series (TRC/TRN) | Standard Twinax/Triax Threaded Connectors | Used in digital data bus, video pair, MIL-STD-1553B. Not recommended for new designs. | Impedance: Non-constant Frequency Range: 0-500 MHz Voltage Rating (max.) @ sea level: 500 VRMS Temperature Range: -65C to +165C |
| 30/330 Series (TWBNC/TWTNC) | Miniature Two-pin Polarized Connectors | Same size as BNC/TNC connectors. Two-pin polarization. | Impedance: Non-constant Frequency Range: 0-500 MHz Voltage Rating (max.) @ sea level: 400 VRMS Temperature Range: -65C to +165C |
| 20/220 Series (BNC) | Miniature Coax Plugs & Jacks | Tool crimp, wrench crimp, 90 right angle, 45 angle, adapters, SureNotch feature for positive mating confirmation. 75 Ohm Telco BNC. | Impedance: 50 / 75 Voltage Rating (max.) @ sea level: 500 VRMS Temperature Range: -65C to +165C |
| 250 Series (Mini-BNC) | Miniature Coax Plugs & Jacks | Designed for DS3 telco applications, higher interconnect density. Straight, right angle, PCB mount, edge mount. | Impedance: 75 Plating: Nickel, Gold |
| 40/240 Series (TNC) | Miniature Coax Threaded Plugs & Jacks | Threaded coupling. Wrench crimp, tool crimp, feed-through, bulkhead mount. | Impedance: 50 / 75 Voltage Rating (max.) @ sea level: 500 VRMS Temperature Range: -65C to +165C |
| 120 Series (BNC/TNC Push-on) | Push-on Coax Jacks & Plugs | Blind mate rack and panel applications. Test/cable applications. | Impedance: 50 / 75 |
| 1.0/2.3 DIN Connectors | Miniature Coax DIN Connectors (75) | 45% smaller than 1.6/5.6 DIN, higher density patching. Works with popular video distribution and telecom cables. | Impedance: 75 |
| 1.6/5.6 DIN Connectors | RF Coaxial DIN Connectors (75) | 30% smaller than standard BNC for central office termination. | Impedance: 75 |
| 90 Series (Type N) | Coax Type N Connectors | Features include 3-piece wrench crimp, gold-plated captive center contacts, beryllium copper female contacts, PTFE dielectrics. Accommodates non-flammable plenum coax cables. | Impedance: 50 / 75 Voltage Rating (max.) @ sea level: 500 VRMS Frequency Range: 0-4 GHz |
| 130 Series (F Type) | Coax F Type Connectors | Meet SCTE-IPS-SP-4-1. Tool crimp, right angle, edge mount jacks. | Impedance: 75 |
| Low VSWR Connectors | 50 Patching System | Developed for frequencies up to 3 GHz and power levels up to 500 watts. Push-fit design for plugs. | Impedance: 50 VSWR: 1.11:1 (up to 3 GHz) |
| 50 Subminiature Coax (TPS/TCM) | Jacks & Plugs | Subminiature, 3-lug, threaded, wrench crimp, tool crimp. | Impedance: 50 |
| High Frequency Video Patching | HDVDP/HDVDPM Series Jacks | Exceed SMPTE 292M specifications for high definition video. Normal-thru contact interface, self-wiping, redundant contact points. | Impedance: 75 Data Rate: 1.485 Gbps (2.25GHz frequency) |
| Coax Patch Jacks & Accessories | Various BNC, TNC, Type N, RCA, WECo Jacks | High frequency normal-thru with monitor capabilities, fixed paralleling adapters. | Impedance: 50 / 75 |
| Mini-WECo Coax Patch Plugs | Plugs | Crimp plug, solder contact, strip dimension crimp, with locking tab. Adapters available. | Impedance: 75 |
| Standard Coax Patching & Looping Plugs | Plugs | Looping plugs with pinch, test point, monitor options. Color-coded handles. | Impedance: 50 / 75 |
| 50 Miniature Coax Patching | Jacks & Plugs | TPS, TCM jacks, miniature patch plugs, patch cords. | Impedance: 50 |
| Panels | Standard 19 Panels, Distribution Panels, Modular Panels | Available in insulated aluminum, non-insulated aluminum, and insulated phenolic. Various hole configurations and spacing. | Panel Heights: 1.75 (1 RU), 3.5 (2 RU) |
| Custom Cable Assemblies | Coax, Twinax, Triax Assemblies | Available in any length. Stocked popular lengths. Wide range of connectors and cable types. Special marking available. 100% electrically tested. | Impedance: 50 / 75 / 93 / 124 |
| Terminations & RFI Caps | Coax, Twinax, Triax Terminations and Dust Caps | Resistors available in W (subminiature) and W (miniature/standard). 1% tolerances. Stainless steel rope with mounting rings available. | Resistance Values: 50, 75, 78, 124 ohm standard |
| Adapters | Coax to Coax, Coax/Twinax/Triax | Standard and custom adapters. Schematics provided for custom adapter circuitry. | Impedance: Various |
| Tools & Accessories | Cable Strippers, Crimp Tools, Cable Testers | Powered and manual cable strippers, 8-point and 12-point crimp tools, cable assembly testers for BNC and Twinax/Triax. Tool kits available. | Tool Kits: Include strippers, crimp tools, testers. |
2411220410_Bel-Fuse-RFI75-4-D2_C17471641.pdf