Import Adapter Sma-Jj — Buy in Bulk from Supplier in China

The Adapter SMA-JJ from Topowave Technology is a precision RF coaxial adapter designed for seamless signal transmission between two male SMA connectors. It operates at 50 ohm impedance with a frequency range spanning DC to 6 GHz, and maintains a VSWR of 1.15 or lower. The adapter is supplied in protective PE bag packaging. These figures come directly from the listing data, which positions the part for both industrial and commercial communication systems.

SMA-JJ adapters of this type are typically machined from brass with gold-plated contacts to ensure low insertion loss and stable electrical performance across temperature variations. The 50 ohm impedance matches standard RF coaxial systems, while the sub-1.15 VSWR rating indicates minimal reflected signal at the junction. Standard industry construction includes passivated stainless steel or nickel-plated brass bodies with PTFE dielectric inserts. Buyers should verify whether Topowave Technology specifies the exact body material and plating thickness, as these influence corrosion resistance and long-term repeatability in outdoor or high-cycle applications.

Typical applications include telecommunications infrastructure, broadcast equipment, test and measurement setups, and aerospace communication modules where compact, reliable interconnection is critical. The SMA interface remains the most widely used RF connector format for frequencies up to 18 GHz, making this adapter compatible with a broad installed base of equipment. Importers should confirm with Topowave Technology the exact minimum order quantity, available Incoterms, and whether the parts carry RoHS compliance documentation for EU-bound shipments.

Topowave Technology is located at 18#601, Hongxing Fushan Street, Shijing Town, Baiyun District, Guangzhou 510430, Guangdong Province, China. The supplier holds an 'imported' tier classification and a 'harbor' trust tier. The listing shows a response rate of 0.00 percent and an average response time of zero hours, which indicates no confirmed response data is available through the platform profile. No information is provided about factory size, year of establishment, or annual revenue.

The supplier's address places it in Guangzhou's Baiyun District, a region with established electronics manufacturing and trade logistics infrastructure. Buyers should treat the limited communication metrics as a signal to initiate direct contact early in the sourcing process. The listing does not state ISO certification, in-house testing capability, or export license details, so these should be verified directly with Topowave Technology before committing to an order.