Product Overview
Semflex, a Cinch Connectivity Solutions brand, specializes in the design and manufacturing of high-quality coaxial cable and cable assemblies for demanding RF and microwave applications. With over 40 years of expertise, Semflex offers cost-effective, vertically integrated solutions that reduce time to market and enhance system reliability. Their products are utilized globally by high-technology firms across various industries, including military weapons platforms, communication systems, electronic countermeasures, cellular infrastructure, satellite communications, airframes, and precision test and measurement equipment. Semflex is committed to contributing to customer success through a broad product line, rapid turnaround times, and high-quality, reliable products that exceed specifications.
Product Attributes
- Brand: Semflex (a Cinch Connectivity Solutions brand)
- Industry Focus: High technology, Military, Aerospace, Telecommunications, Test & Measurement, Industrial Lasers, Medical MRI, Professional Audio
- Manufacturing: Vertically integrated
Technical Specifications
About Semflex
Semflex is a vertically integrated company manufacturing high-performance RF/Microwave cables, cable assemblies, and connectors for a global list of high technology firms. The companys mission is to contribute to the success of its customers by offering cost-effective solutions, reducing time to market, and increasing system reliability.
Catalog Configured Cable Assemblies - HPI/LAI Series
The HPI/LAI Series offers highly configurable cable assemblies with options for phase matching and custom marking. Available with HP and LA series cables, a wide selection of interfaces, and cable jackets. Connectors meet MIL-C-39012 standards.
HPI/LAI Series Cable Constants
| Cable | Max. Freq., GHz | k1 | k2 |
| HP120S | 55 | 15.22 | 0.59 |
| HP160S | 40 | 11.72 | 0.38 |
| HP160U | 40 | 13.33 | 0.87 |
| HP190S | 28 | 7.45 | 0.35 |
| HP305S | 18 | 4.76 | 0.37 |
| HP450 | 12 | 3.44 | 0.36 |
| LA190S | 28 | 7.38 | 0.32 |
| LA290S | 18 | 4.24 | 0.19 |
Connector Constants, k3
| Connector | Straight | Right Angle |
| 2.4mm | 0.03 | 0.05 |
| 2.92mm | 0.03 | 0.05 |
| 3.5mm | 0.03 | 0.05 |
| SMA | 0.03 | 0.05 |
| N | 0.05 | 0.07 |
| TNC | 0.05 | 0.07 |
HPI/LAI Series VSWR Guide (Max)
| Freq. GHz | Interface | VSWR*(max) |
| 50 | 2.4mm, Straight | 1.45 |
| 50 | 2.4mm, Right Angle | 1.50 |
| 40 | 2.9mm, Straight | 1.40 |
| 40 | 2.9mm, Right Angle | 1.50 |
| 35 | 3.5mm, Straight | 1.40 |
| 35 | 3.5mm, Right Angle | 1.50 |
| 26 | SMA Straight | 1.25 |
| 26 | SMA Right Angle | 1.30 |
| 18 | N Straight | 1.30 |
| 18 | N Right Angle | 1.30 |
| 18 | TNC Straight | 1.30 |
| 18 | TNC Right Angle | 1.30 |
Catalog Configured Cable Assemblies - HPT Series
The HPT Series offers cable assemblies with high-performance HP cable, featuring a heavy-duty, hot-molded rubber boot for exceptional strain relief. Designed for lab and production testing and high flexure applications up to 50GHz.
HPT Series Cable Constants
| Cable | Max. Freq., GHz | k1 | k2 |
| HP120S | 55 | 15.22 | 0.59 |
| HP160S | 40 | 11.72 | 0.38 |
| HP160U | 40 | 13.33 | 0.87 |
| HP190S | 28 | 7.45 | 0.35 |
| HP305S | 18 | 4.76 | 0.37 |
Connector Constants, k3
| Connector | Straight | Right Angle |
| 2.4mm | 0.03 | 0.05 |
| 2.92mm | 0.03 | 0.05 |
| 3.5mm | 0.03 | 0.05 |
| SMA | 0.03 | 0.05 |
| N | 0.05 | 0.07 |
| TNC | 0.05 | 0.07 |
HPT Series VSWR Guide (Max)
| Freq. GHz | Interface | VSWR*(max) |
| 50 | 2.4mm, Straight | 1.45 |
| 50 | 2.4mm, Right Angle | 1.50 |
| 40 | 2.9mm, Straight | 1.40 |
| 40 | 2.9mm, Right Angle | 1.45 |
| 35 | 3.5mm, Straight | 1.40 |
| 35 | 3.5mm, Right Angle | 1.45 |
| 26 | SMA Straight | 1.25 |
| 26 | SMA Right Angle | 1.30 |
| 18 | N Straight | 1.30 |
| 18 | N Right Angle | 1.30 |
| 18 | TNC Straight | 1.30 |
| 18 | TNC Right Angle | 1.30 |
Catalog Configured Cable Assemblies - DKF Series
The DKF Series features HP190S cable with a heavy-duty slip-on rubber boot for strain relief. Designed for lab and production applications up to 18GHz, with standard lengths and straight male connectors available.
DKF Series Cable Constants
| Cable | Max. Freq., GHz | k1 | k2 |
| HP190S | 28 | 7.45 | 0.35 |
Connector Constants, k3
| Connector | Straight | Right Angle |
| SMA | 0.03 | 0.05 |
| N | 0.05 | 0.07 |
DKF Series VSWR Guide (Max)
| Freq. GHz | Interface | VSWR*(max) |
| 26 | SMA Straight | 1.25 |
| 26 | SMA Right Angle | 1.30 |
| 18 | N Straight | 1.30 |
| 18 | N Right Angle | 1.30 |
Catalog Configured Cable Assemblies - SWI Series
The SWI Series offers a higher performance alternative to RG series cable assemblies, available with SW series cable. Ideal for in-box or in-cabinet applications up to 18GHz.
SWI Series Cable Constants
| Cable | Max. Freq., GHz | k1 | k2 |
| SW060 | 129 | 38.38 | 0.36 |
| SW086 | 71 | 22.62 | 0.63 |
| SW110 | 55 | 16.15 | 0.60 |
| SW150 | 40 | 12.45 | 0.35 |
| SW180 | 28 | 8.62 | 0.39 |
Connector Constants, k3
| Connector | Straight | Right Angle |
| SMA | 0.03 | 0.05 |
| MCX | 0.03 | 0.05 |
| N | 0.05 | 0.07 |
| TNC | 0.05 | 0.07 |
SWI Series VSWR Guide (Max)
| Freq. GHz | Interface | VSWR*(max) |
| 26 | SMA Straight | 1.25 |
| 26 | SMA Right Angle | 1.30 |
| 18 | N Straight | 1.30 |
| 18 | N Right Angle | 1.30 |
| 18 | TNC Straight | 1.30 |
| 18 | TNC Right Angle | 1.30 |
| 6 | MCX Straight | 1.30 |
| 6 | MCX Right Angle | 1.35 |
Connectors Overview
Semflex offers a wide selection of microwave connectors designed for excellent electrical transitions and low VSWR. They provide hundreds of connector designs for special requirements, including high power, swept 90 bends, environmental sealing, low intermod characteristics, and special plating.
Superior Cable Technology
Cable 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).
Shielding Options
- 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).
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.
High Performance Cable
Cable Series Overview
- LA Series: Extra low attenuation, phase stability, and mechanical performance (up to 28GHz).
- HP Series: Robust construction for test and measurement, low loss and VSWR to 55GHz.
- SW Series: Lower cost, ease of assembly, good electrical performance to 129GHz.
- KW Series: High power, low loss, high flexibility compared to air dielectric corrugated cables (up to 14GHz).
Power Handling
Average power ratings are based on VSWR of 1.0:1, at sea level and an ambient temperature of 25 C. Derating factors for temperature and altitude are available.
LA Series Cable
The LA Series offers the best combination of low attenuation, phase stability, and mechanical performance. Features silver-plated conductors, ultra-low density microporous PTFE dielectrics, and FEP jackets. Shielding effectiveness >100 dB.
LA Series Electrical Properties
| Specification | LA190S | LA290S |
| Impedance (ohms) | 50 | 50 |
| Capacitance (pf/ft) | 23.8 | 24 |
| Inductance (nH.ft) | 59 | 59 |
| Shielding Effectiveness (dB) | >100 | >100 |
| Cut off Frequency (GHz) | 28 | 19.7 |
| Velocity of Propagation (%) | 85 | 83 |
| Breakdown Voltage (KV) | >10 | >15 |
| Max Structural VSWR | 1.20:1 | 1.20:1 |
LA Series Mechanical Properties
| Specification | LA190S | LA290S |
| Jacket O.D. (in) | 0.189 | 0.292 |
| Round Braid O.D. (in) | 0.174 | 0.267 |
| Helical Braid O.D. (in) | 0.158 | 0.249 |
| Dialectric O.D. (in) | 0.147 | 0.235 |
| Center Conductor O.D. (in) | 0.055 | 0.089 |
| Center Conductor Type | Solid | Solid |
| Inside Minimum Bend Radius (in) | 1.1 | 1.600 |
| Operating Temperature (C) | -65/+200 | -65/+200 |
| Weight (lbs/ft) | 0.034 | 0.090 |
HP Series Cable
The HP Series is a long-standing choice for military and aerospace interconnects, also excelling in test and measurement. Features triple shield construction for robust connector attachments and high pull-off force. Offers low loss and VSWR up to 55GHz.
HP Series Electrical Properties
| Specification | HP120S | HP160S | HP160U | HP190S | HP305S | HP450 |
| Impedance (ohms) | 50 | 50 | 50 | 50 | 50 | 50 |
| Capacitance (pf/ft) | 26.7 | 26.9 | 27 | 26.7 | 26.2 | 26 |
| Inductance (nH.ft) | 67 | 66 | 66 | 66 | 66 | 62 |
| Shielding Effectiveness (dB) | >90 | >90 | >90 | >90 | >90 | >90 |
| Cut off Frequency (GHz) | 55 | 40 | 40 | 28 | 18 | 12 |
| Velocity of Propagation | 74% | 75% | 78% | 75.5% | 77% | 78% |
| Breakdown Voltage (KV) | >5 | >7 | >7 | >10 | >15 | >20 |
| Max Structural VSWR | 1.20:1 | 1.20:1 | 1.20:1 | 1.20:1 | 1.20:1 | 1.20:1 |
HP Series Mechanical Properties
| Specification | HP120S | HP160S | HP160U | HP190S | HP305S | HP450 |
| Jacket O.D. (in) | 0.124 | 0.160 | 0.168 | 0.205 | 0.305 | 0.450 |
| Round Braid O.D. (in) | 0.104 | 0.145 | 0.136 | 0.188 | 0.273 | 0.403 |
| Shield Interlayer O.D. (in) | 0.088 | 0.129 | 0.120 | 0.172 | 0.256 | 0.378 |
| Flat Braid O.D. (in) | 0.080 | 0.120 | 0.109 | 0.163 | 0.248 | 0.369 |
| Dielectric O.D. (in) | 0.074 | 0.108 | 0.097 | 0.151 | 0.242 | 0.357 |
| Center Conductor O.D. (in) | 0.025 | 0.036 | 0.034 | 0.051 | 0.078 | 0.129 |
| Center Conductor Type | Solid | Solid | Stranded | Solid | Solid | Stranded |
| Inside Min Bend Radius (in) | 0.6 | 0.9 | 0.9 | 1.1 | 1.8 | 2.5 |
| Operating Temperature (C) | -65/200 | -65/200 | -65/85 | -65/200 | -65/200 | -65/200 |
| Weight (lbs/ft) | 0.02 | 0.04 | 0.03 | 0.05 | 0.09 | 0.20 |
SW Series Cable
The SW Series provides low loss cable solutions with microporous PTFE dielectrics and a double braid construction for exceptional electrical performance and simplified connector attachments. Shielding effectiveness >85 dB.
SW Series Electrical Properties
| Specification | SW060 | SW086 | SW110 | SW150 | SW180 |
| Impedance (Ohms) | 50 | 50 | 50 | 50 | 50 |
| Capacitance (pf/ft) | 27 | 27 | 27 | 26.9 | 26.7 |
| Inductance (nH/ft) | 68 | 67 | 66 | 66 | 62 |
| Shielding Effectiveness (dB) | >85 | >85 | >85 | >85 | >85 |
| Cut off Frequency (GHz) | 129 | 71 | 55 | 40 | 28 |
| Velocity of Propagation | 75% | 74% | 76% | 76% | 77% |
| Breakdown Voltage (KV) | >1 | >3 | >5 | >7 | >10 |
| Max Structural VSWR | 1.15:1 | 1.15:1 | 1.15:1 | 1.15:1 | 1.15:1 |
SW Series Mechanical Properties
| Specification | SW060 | SW086 | SW110 | SW150 | SW180 |
| Jacket O.D. (in) | 0.060 | 0.090 | 0.118 | 0.153 | 0.196 |
| Round Braid O.D. (in) | 0.049 | 0.083 | 0.096 | 0.136 | 0.180 |
| Flat Braid O.D. (in) | 0.039 | 0.065 | 0.080 | 0.120 | 0.163 |
| Dielectric O.D. (in) | 0.033 | 0.059 | 0.074 | 0.108 | 0.151 |
| Center Conductor O.D. (in) | 0.011 | 0.020 | 0.025 | 0.036 | 0.051 |
| Center Conductor Type | Solid | Solid | Solid | Solid | Solid |
| Inside Min Bend Radius (in) | 0.275 | 0.4 | 0.5 | 0.8 | 1.0 |
| Operating Temperature (C) | -65/200 | -65/200 | -65/200 | -65/200 | -65/200 |
| Weight (lbs/ft) | 0.010 | 0.015 | 0.020 | 0.040 | 0.050 |
KW Series Cable
The KW Series offers ultra-low attenuation and high power handling with superior flexibility compared to corrugated cables. Features copper clad aluminum conductors, microporous PTFE dielectrics, and a polyurethane jacket. Shielding effectiveness >85 dB.
KW Series Electrical Properties
| Specification | KW430 | KW530 |
| Impedance (ohms) | 50 | 50 |
| Capacitance (pf/ft) | 24 | 24 |
| Inductance (nH.ft) | 62 | 62 |
| Shielding Effectiveness (dB) | >85 | >85 |
| Cut off Frequency (GHz) | 14 | 11 |
| Velocity of Propagation | 83% | 83% |
| Breakdown Voltage (KV) | >17 | >20 |
| Max Structural VSWR | 1.20:1 | 1.20:1 |
KW Series Mechanical Properties
| Specification | KW430 | KW530 |
| Jacket O.D. (in) | 0.430 | 0.530 |
| Round Braid O.D. (in) | 0.343 | 0.443 |
| Flat Braid O.D. (in) | 0.327 | 0.417 |
| Dielectric O.D. (in) | 0.315 | 0.405 |
| Center Conductor O.D. (in) | 0.114 | 0.144 |
| Center Conductor Type | Solid | Solid |
| Inside Min Bend Radius (in) | 2.2 | 2.5 |
| Operating Temperature (C) | -65/85 | -65/85 |
| Weight (lbs/ft) | 0.15 | 0.20 |
SM Series Cable
The SM Series offers a flexible alternative to semi-rigid cable, using the same connectors and tooling. Ideal for military ECM, commercial antennas, and communication systems. Features silver-plated conductors, solid PTFE dielectrics, and FEP jackets. Shielding effectiveness >100 dB.
SM Series Electrical Properties
| Specification | SM405 | SM402 |
| Impedance (ohms) | 50 | 50 |
| Capacitance (pf/ft) | 29.4 | 29.4 |
| Inductance (nH.ft) | 71 | 71 |
| Shielding Effectiveness (dB) | >100 | >100 |
| Cut off Frequency (GHz) | 60 | 34 |
| Velocity of Propagation | 70% | 70% |
| Breakdown Voltage (KV) | >2 | >5 |
| Max Structural VSWR | 1.20:1 | 1.20:1 |
SM Series Mechanical Properties
| Specification | SM405 | SM402 |
| Jacket O.D. (in) | 0.101 | 0.161 |
| Round Braid O.D. (in) | 0.083 | 0.141 |
| Helical Braid O.D. (in) | 0.066 | 0.124 |
| Dielectric O.D. (in) | 0.060 | 0.116 |
| Center Conductor O.D. (in) | 0.020 | 0.036 |
| Center Conductor Type | Stranded | Solid |
| Inside Min Bend Radius (in) | 0.150 | 0.250 |
| Operating Temperature (C) | -65/125 | -65/125 |
| Weight (lbs/ft) | 0.015 | 0.033 |
About Cinch Connectivity Solutions
For over 100 years, Cinch Connectivity Solutions has manufactured high-quality and reliable high-performance connectors and cable assemblies. Cinch is recognized as a world-class connectivity supplier of RF, fiber optic, hybrid, microwave components, circular, d-subminiatures, modular rectangular, electronic enclosures, and cable assemblies. Cinch provides innovative solutions to the military, commercial aerospace, networking, telecommunication, test and measurement, oil and gas, and other harsh environment industries.
2411061733_Bel-Fuse-2122-DKF-0036_C21978012.pdf
