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“Kinghelm RF Coaxial Connector Hot Recommendations” (Click the title to jump to LCSC Marketplace) Full text below:
1. RF Coaxial Connector: KH-SMA-K513-G
Kinghelm (www.kinghelm.net) model KH-SMA-K513-G is a high-reliability RF coaxial connector. It is designed as a board-end connector with a female interface and adopts a right-angle structure, enabling bent connections for space-constrained applications. It also supports multiple connection types including RF SMA-KE/KWE/KHD/IPEX/IPX interfaces and antenna sockets.
The connector features a characteristic impedance of 50Ω and supports frequencies up to 6GHz, meeting the requirements of high-frequency signal transmission. Its operating temperature range is from -55℃ to +155℃, allowing stable performance across diverse environments. During use, it is recommended to operate in dry, non-corrosive gas environments, and to avoid mechanical shock, vibration, excessive temperature, and humidity.

kinghelm RF board-end connector KH-SMA-K513-G datasheet 1
kinghelm RF board-end connector KH-SMA-K513-G datasheet 2
The KH-SMA-K513-G effectively addresses signal instability challenges in high-frequency, high-temperature, and high-voltage environments. It is widely used in wireless communication, broadcasting, radar, and satellite communication systems, including antennas, transceivers, power amplifiers, and filters.
2. Product Application: KH-SMA-K513-G48
KH-SMA-K513-G48 product dimension drawing
This product, kinghelm semi-thread right-angle SMA female board-end connector (KH-SMA-K513-G48), adopts a right-angle plug-in design and is packaged in trays. It is suitable for board-end connection scenarios requiring SMA interfaces and is widely used in wireless communication equipment, radar systems, and test & measurement instruments.
Product advantages include:
High-quality materials: Made of brass and PTFE (polytetrafluoroethylene), ensuring stable and reliable performance.
Strong corrosion resistance: Passed 48-hour salt spray testing, suitable for harsh environments.
Easy assembly: Right-angle plug-in structure for convenient installation and removal.
3. Product Series Recommendation
|
Part Number |
Manufacturer Model |
Specification |
Brand |
|
C411575 |
RF SMA-KE/KWE/KHD/IPEX/IPX connector, antenna socket, external thread internal hole right-angle type |
kinghelm |
|
|
C7542042 |
Semi-thread right-angle SMA female board-end, 48H salt spray (500PCS/bundle) GW-LJ186 |
||
|
C454132 |
External thread internal hole 18mm full-thread gold plated |
||
|
C2925411 |
Gold-plated 11-thread |
||
|
C454130 |
External thread internal hole 13mm full-thread gold plated |
||
|
C530660 |
Gold-plated external thread internal hole 11-thread |
||
|
C7542050 |
20-thread straight pin through-hole SMA female board-end |
||
|
C7542044 |
15-thread straight pin through-hole SMA female board-end, total length 20.5 |
||
|
C7542049 |
14-thread straight pin through-hole SMA female board-end |


