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Help Center0.250" Low Loss Semi‑Rigid Coaxial Cable 50 Ohm SR-250C-LL Feeder Cable for RF System
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Product Introduction
Bing SR and SFT Series Semi-Rigid Coaxial Cables are high-performance, near-ideal coaxial solutions for RF and microwave engineering. These cables are available in a wide range of impedances (50Ω, 10Ω, 15Ω, 25Ω, 75Ω, 100Ω) and outer diameters from 0.50mm to 9.90mm, with a maximum continuous length of 30 meters.
The outer conductor can be made of copper, aluminum, or stainless steel, with optional plating layers per customer requirements. These semi-rigid cables serve as direct equivalents to popular international specifications, making them the preferred choice for demanding RF/microwave applications.
Core Features
· Low & Ultra-Low Loss Performance: 50Ω semi-rigid cables reduce attenuation by up to 20%, with an extended operating temperature range up to 250°C.
· High-Temperature Resistance: "DS" high-precision semi-rigid cables withstand 150°C for 1-hour high-temperature testing, preventing copper tube cracking or bulging.
· Customizable Solutions: Non-magnetic options available for MRI and sensitive environments; Tailored solutions for specific inner conductor strength and bending radius requirements
· Wide Impedance & Size Range: Impedance options from 10Ω to 100Ω, with outer diameters ranging from ultra-miniature 0.50mm to high-power 9.90mm.
Model |
Description |
OD (mm) |
Impedance |
Notes |
SR-020 |
020 Equivalent Cable |
0.58 |
50Ω |
Ultra-thin semi-rigid |
SR-034 |
034 Equivalent Cable |
0.86 |
50Ω |
Ultra-thin semi-rigid |
SR-034C |
034C Equivalent Cable |
0.86 |
50Ω |
Non-magnetic semi-rigid |
SR-047 |
047 Equivalent Cable |
1.19 |
50Ω |
Standard semi-rigid |
SR-047C |
047C Equivalent Cable |
1.19 |
50Ω |
Non-magnetic semi-rigid |
SR-086 |
085 Equivalent Cable |
2.20 |
50Ω |
Standard semi-rigid |
SR-086C |
085C Equivalent Cable |
2.20 |
50Ω |
Non-magnetic semi-rigid |
SR-141 |
141 Equivalent Cable |
3.58 |
50Ω |
Standard semi-rigid |
SR-141C |
141C Equivalent Cable |
3.58 |
50Ω |
Non-magnetic semi-rigid |
SR-250C |
250C Equivalent Cable |
6.35 |
50Ω |
Non-magnetic semi-rigid |
SR-390C |
390C Equivalent Cable |
9.90 |
50Ω |
High-power semi-rigid |
SR-031-LL |
031-LL Equivalent Cable |
0.79 |
50Ω |
Low-loss semi-rigid |
SR-047C-LL |
047C-LL Equivalent Cable |
1.19 |
50Ω |
Low-loss semi-rigid |
SR-086C-LL |
085C-LL Equivalent Cable |
2.20 |
50Ω |
Low-loss semi-rigid |
SR-141C-LL |
141C-LL Equivalent Cable |
3.58 |
50Ω |
Low-loss semi-rigid |
SR-250C-LL |
250C-LL Equivalent Cable |
6.35 |
50Ω |
Low-loss semi-rigid |
SFT-50-0.4 |
High-precision ultra-thin |
0.58 |
50Ω |
Ultra-fine semi-rigid |
SFT-50-0.6 |
Non-magnetic semi-rigid |
0.86 |
50Ω |
SJ50973/5-1996 |
SFT-50-1 |
Non-magnetic semi-rigid |
1.19 |
50Ω |
SJ50973/6-1997 |
SFT-50-2 |
Non-magnetic semi-rigid |
2.20 |
50Ω |
SJ50973/7-1995 |
SFT-50-3 |
Non-magnetic semi-rigid |
3.58 |
50Ω |
SJ50973/2-1995 |
SFT-50-5 |
Non-magnetic semi-rigid |
6.35 |
50Ω |
SJ50973/3-1995 |
Typical Applications
These semi-rigid cables are widely used in high-performance RF/microwave systems:
· Test & Measurement: Precision test benches, signal analyzers, and calibration setups.
· Defense & Aerospace: Radar systems, avionics, and satellite payloads.
· Medical Equipment: MRI machines and other non-magnetic RF devices.
· Telecommunications: Base station RF front-ends and high-frequency signal routing.
· Industrial & Scientific: Lab instrumentation, high-power RF systems, and EMI-sensitive applications.
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