Robust Bel Fuse 2151-DKF-0036 coaxial cable assemblies designed for precision and system reliability

Product Overview

Semflex, a Cinch Connectivity Solutions brand, has been a leading manufacturer of high-quality coaxial cable for over 40 years. Leveraging extensive expertise, Semflex specializes in the rapid design and manufacturing of custom cable solutions to meet specific and unique requirements across diverse environmental, mechanical, and electrical conditions. As a vertically integrated company, Semflex produces high-performance RF/Microwave cables, cable assemblies, and connectors for a global clientele of high-technology firms. Their mission is to contribute to customer success by offering cost-effective, one-stop shopping for a broad range of RF and microwave products, reducing time to market with rapid turnaround for new designs, and increasing system reliability through high-quality products that exceed specifications. Semflex supplies cable products to industries including military weapons platforms, electronic countermeasures, cellular infrastructure, satellite communications, commercial and military airframes, precision test and measurement, and semiconductor sputtering.

Product Attributes

• Brand: Semflex (a Cinch Connectivity Solutions brand)
• Certifications: Designed to meet MIL-C-39012 applicable industry standards

Technical Specifications

Catalog Configured Cable Assemblies - HPI/LAI Series

Features:

• Most customer configurable cable assembly series.
• Custom options such as phase matching and custom marking available upon request.
• Available with high performance HP cable series and low attenuation LA cable series.
• Wide selection of interfaces and cable jackets.
• Connectors designed for cable fit and optimum connector to cable transition.
• Wide range of applications through 50GHz.

Insertion Loss Calculation:

IL = L x [( k1 x F ) + ( k2 x F ) ] / 1200 + k3 x F

Where:

• IL = Insertion Loss (dB)
• L = Length (in)
• F = Frequency (GHz)

Cable Constants:

Connector Constants (k3):

VSWR Guide (Max):

Jacket Types: FEP Jacket (BF), Polyurethane Jacket (BP)

Length: Min 6 in, Max 480 in

Center Conductor Types: S (Solid), B (Stranded)

Catalog Configured Cable Assemblies - HPT Series

Features:

• Available with high performance HP cable series.
• Heavy duty on cable hot molded rubber boot provides exceptional strain relief and extends the life span of the cable assembly.
• Connectors specially designed to provide excellent adhesion to the strain relief boot.
• Interfaces designed to meet MIL-C-39012 applicable industry standards.
• Ideal for lab and production testing and high flexure applications up to 50GHz.

Cable Types: HP120S, HP160S, HP160U, HP190S, HP305S

Length: Min 6 in, Max 480 in

VSWR Guide (Max): (See HPI/LAI Series VSWR Guide)

Catalog Configured Cable Assemblies - DKF Series

Features:

• Available with high performance HP190S cable.
• Heavy duty slip-on rubber boot provides exceptional strain relief and extends the life span of the cable assembly.
• Connectors specially designed to provide excellent adhesion to the strain relief boot.
• Interfaces designed to meet MIL-C-39012 applicable industry standards.
• Available in standard lengths with straight male connectors stocked by distributors for lab and production applications up to 18GHz.

Cable Type: HP190S

Length: Min 6 in, Max 480 in

VSWR Guide (Max):

Catalog Configured Cable Assemblies - SWI Series

Features:

• Available with SW series cable.
• Higher performance alternative to RG series cable assemblies.
• Interfaces designed to meet MIL-C-39012 applicable industry standards.
• Ideal for in-box or in-cabinet applications up to 18GHz.

Cable Types: SW060, SW086, SW110, SW150, SW180

Length: Min 6 in, Max 480 in

VSWR Guide (Max):

Connectors Overview

Semflex offers a large selection of microwave connectors designed for excellent electrical transitions and low VSWR. They provide hundreds of other connector designs for special requirements such as high power, swept 90 bends, environmental sealing, low intermod characteristics, and special plating or finishes. Contact Customer Service for special requirements.

Superior Cable Technology

Shielding Options: Silver or tin plated copper wire, bare copper or aluminum wire, and foil tapes (80-100% coverage). Braid design is optimized for cable function, affecting attenuation, flexibility, and shielding effectiveness. Higher braid coverage yields better shielding and lower attenuation; lower coverage yields better flexibility.

Jacket Materials:

• Polyurethane: Low temperature rating, UV resistant, abrasion resistant, flexible (-65 to 85C).
• FEP: High temperature rating, chemical resistant, moisture resistant, low smoke, low outgassing (-65 to 200C).

Braid Types:

• Round Braid: Lower material cost, most flexible.
• Woven Flat Braid: Lower contact resistance, better coverage, smoother conductor, increased connector retention and torque resistance.
• Helical Flat Braid: Improved flexibility and shielding, increased phase stability vs flexure, lower radial torque resistance.
• Wrapped or Folded Foil: Polyimide (helical wrap) for increased mechanical strength, high temp, chemical resistance. Polyester (folded) for low temp, low strength, lowers contact resistance and attenuation.

Dielectric Materials:

• Polyethylene: Temp (-40 to 85C), VP (66-85%).
• Solid PTFE: Temp (-65 to 125C), VP (70%).
• Low Density PTFE: Temp (-65 to 200C), VP (74-78%).
• Ultra Low Density PTFE: Temp (-65 to 200C), VP (82-85%).

Center Conductor Materials:

• Solid Conductors: Less resistance, lower loss, higher power.
• Stranded Conductors: More flexible.
• Silver Plating: Lowest loss, solderable.
• Copper Clad: Cost effective, solderable.

Shielding Construction:

• Triple Shield: Woven flat braid, polyimide foil, round braid (>90 dB shielding effectiveness).
• Double Shield: Helical flat braid, round braid (>100 dB shielding effectiveness).
• Double Shield: Woven flat braid, round braid (>85 dB shielding effectiveness).
• Double Shield: Polyester foil, round braid (>85 dB shielding effectiveness).
• Double Shield: Round braid, round braid (>60 dB shielding effectiveness).
• Single Shield: Round braid (>40 dB shielding effectiveness).

Characteristic Impedance Tolerances: Extruded dielectrics: < +/- 6%; Tape wrapped dielectrics: < +/- 2%.

High Performance Cable - LA Series

Description: Provides the best available combination of low attenuation, phase stability, and mechanical performance. Offers excellent bend and crush resistance. Best choice for phase stability over temperature and flexure.

Features:

• Ultra-low loss.
• Phase stability over temperature and flexure.
• Shielding effectiveness of >100 dB.
• Combines helically served flat braid with 97% coverage round braid.
• Silver plated inner and outer conductors.
• Ultra low density microporous PTFE dielectrics and FEP jackets.

High Performance Cable - HP Series

Description: Long history in military and aerospace industries. Excels in test and measurement applications offering high performance, flexibility, and a wide range of precision connectors for applications up to 50GHz. Triple shield construction provides excellent pull-off force and resistance to harsh handling.

Features:

• High performance, flexibility, and robust construction.
• Connector attachments exceed 70 lbs pull-off force.
• Withstands radial torque, continuous flexing, and wide temperature extremes.
• Silver plated inner and outer conductors.
• Microporous PTFE dielectrics and FEP jackets for consistent performance.
• Triple shield construction (woven flat braid, foil, round braid) for shielding effectiveness >90 dB.
• Better radial torque resistance and connector pull-off strength.

SW Series Cable

Description: Offers low loss cable solutions bridging the gap between lower performance RG cables and expensive high performance cables. Features microporous PTFE dielectrics and a simple double braid construction for exceptional electrical performance and simplified connector attachments.

Features:

• Low loss.
• Microporous PTFE dielectrics.
• Double braid construction.
• Shielding effectiveness >85 dB.
• Can be assembled with standard semi-rigid or RG style crimp-on connectors (SW060, SW086, SW150).

KW Series Cable

Description: Offers ultra-low attenuation and high power ratings with incredible flexibility, comparable to rigid, corrugated, air dielectric cables. Features a copper clad aluminum conductor and a soft, pliable polyurethane jacket suitable for tight installations.

Features:

• Improved flexibility compared to corrugated cables.
• Easily hand-formed and installed in tight spaces.
• Ultra low loss.
• High power ratings.
• Copper clad aluminum conductor.
• Soft, pliable, fire retardant, and UV resistant polyurethane jacket.
• Shielding effectiveness >85 dB.

SM Series Cable

Description: Offers a flexible alternative to semi-rigid cable, utilizing the same connectors and assembly tooling. Ideal for military ECM and guidance systems, commercial antennas, and communication applications where compact or densely-spaced coaxial interconnects are needed.

Features:

• Flexible alternative to semi-rigid cable.
• Utilizes same connectors and assembly tooling as 0.086 and 0.141 semi-rigid cables.
• Ideal for military and commercial applications, densely packed cable systems, and communication systems.
• Silver plated inner and outer conductors.
• Solid PTFE dielectrics and FEP jackets.
• Shielding effectiveness >100 dB.