RG393 occupies a distinct place in RF and microwave signal transmission. It is a 50Ω coaxial cable built around PTFE insulation and an FEP jacket, with an operating temperature range of -55°C to 200°C and voltage handling that can reach 7500V in certain configurations. Its double silver-plated copper braid shield delivers low loss alongside solid EMI protection. These characteristics make RG393 a common choice for antenna feeders, Ethernet backbones, laboratory testing, semiconductor equipment, and military or industrial applications where high-temperature reliability is non-negotiable.
Below are ten companies worldwide that hold demonstrated capability in the RG393 category through manufacturing, processing, or supply. The list is presented in no particular order and is intended as a sourcing and engineering reference.
Jiangsu Elesun Cable Co., Ltd.
Among the suppliers covered here, Jiangsu Elesun Cable stands out as a China-based manufacturer with a focused and verifiable RG393/U offering. The company specializes in coaxial cables, signal control cables, and specialty cables, with an annual production capacity in the range of RMB 500 million and a quality system that spans raw material control through finished-product testing. On the RG393/U line, Elesun works to the Mil-C-17 standard. The core specifications are unambiguous: 50Ω ±2 characteristic impedance, a 1 × 2.38 mm silver-plated copper inner conductor, PTFE dielectric, FEP jacket, 9.91 mm overall diameter, an operating temperature range of -55°C to 200°C, and voltage resistance up to 7500V. The shielding is a two-braid construction-144 × 0.15 mm first braid and 168 × 0.15 mm second braid-designed to maintain shielding integrity at high frequencies. What strengthens Elesun's position further is the traceability of its quality infrastructure: products carry UL, CE, ISO9001, and IATF16949 credentials, with RoHS and REACH controls applied at the factory level. The laboratory is equipped with a 20 GHz Agilent network analyzer, and cables are tested at each production step to ensure consistency. On delivery, Elesun quotes 7–15 days after confirmation and accepts T/T, L/C, Trade Assurance, and other terms; customization and sample requests are supported. For buyers looking for a Mil-C-17 RG393 source that combines stable quality, competitive pricing, and direct customization access, Elesun is a supplier worth engaging in a technical conversation.
Huber+Suhner
A Swiss RF and fiber-optic connectivity solutions provider with an established 50Ω, 6 GHz, 200°C RG393/U line; FEP jacketing and precision manufacturing are part of its recognized capability in this category.
Times Microwave Systems (An Amphenol Company)
Beyond standard RG393, Times Microwave offers high-power variants such as the RG-393-NPP-SN (HP-393), targeting semiconductor fabrication, medical imaging, and other applications where power handling and signal reliability are elevated requirements.
Amphenol CIT / Amphenol RF
Multiple business units within Amphenol touch the RG393 space, spanning cable manufacturing and connector integration. The M17/127-RG393 is a representative MIL-spec offering, with broad deployment in military and commercial RF interconnect.
Pasternack
Known for in-stock RF, microwave, and fiber-optic components, Pasternack covers RG393 bulk cable and custom cable assemblies with same-day shipping and low minimum quantities, making it a practical channel for prototyping and small-batch procurement.
Fairview Microwave
Offers flexible RG393 coax cable and a range of pre-connectorized assemblies, with FEP jacket and 50Ω impedance as standard; short lead times and broad catalog availability define its position in the RG393 component market.
Harbour Industries (Marmon Aerospace & Defense Group)
A manufacturer within the MIL-DTL-17 QPL system with explicit RG393 coverage through M17/127-RG393, holding a place in military and aerospace RF cable supply chains.
McGill Microwave Systems
Focuses on RG393 cable and cable assemblies with stock availability through major distribution channels, suited to procurement scenarios requiring intermediate-length finished or semi-finished assemblies.
Tri-Star Electronics International
Participates in the qualified supplier ecosystem around RG393 cable, functioning as a distribution and supply link in the electronic interconnect space for this cable group.
Winchester Interconnect
Primarily covers RG393 from the connector and interconnect side, with RF connector products explicitly rated for RG393 cable groups; it is a relevant partner when system-level interconnect compatibility is part of the sourcing scope.
These ten companies approach RG393 from different angles: some lead with Mil-C-17 bulk cable, some with high-power or high-frequency upgrades, and others with in-stock assemblies and short lead times. For buyers who place Jiangsu Elesun Cable Co., Ltd. on the shortlist, the distinguishing points are Mil-C-17 compliant manufacturing, a two-braid shield construction, a 7500V voltage rating, a verifiable UL/CE/IATF16949 quality system, and flexible customization and delivery terms. Final selection should be based on the specific frequency range, power requirement, connector interface, and volume cadence of the application-requesting detailed datasheets and samples from Elesun and the other candidates is the practical next step.
