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KH-SMA-P-8029是金航标(Kinghelm)SMA系列射频同轴连接器的板端专用型号,核心定位为小型化设备的PCB板端射频信号连接,采用内孔接口+90°弯头结构,适配单端口射频信号传输场景。该型号的基础参数清晰匹配射频设备的紧凑布局需求,具体如下:
该型号采用90°直角弯头设计,打破了SMA直头连接器在PCB板端的空间限制:当设备内部射频模块与外部接口呈垂直布局时,弯头可直接转向,无需额外弯折射频线缆,既减少信号传输损耗(弯曲损耗≤0.1dB@3GHz),又避免直头突出占用额外体积,适配便携式仪器、车载终端等小型化场景。
作为SMA标准内孔母头,KH-SMA-P-8029的中心导体与外导体采用高精度机械加工,插拔公差控制在±0.02mm以内,与对端SMA公头(内针)配合紧密;外导体螺纹镀镍处理,抗氧化性强,插拔寿命可达1000次以上,长期使用后仍能保持50Ω阻抗匹配(反射系数≤-20dB@DC-6GHz)。
插件式引脚设计适配常规PCB板厚度(1.6mm为主流),焊接时引脚穿透PCB板,波峰焊或手工焊后形成牢固的机械连接与电气导通——相比表贴封装,可有效降低振动环境下的虚焊风险,适合工业级、车载级等对可靠性要求较高的场景。
接口直径5.25mm、板高14mm的参数符合多数射频设备的PCB布局规范,无需修改板设计即可直接替换同类SMA板端弯头连接器,降低研发与改造成本。
KH-SMA-P-8029的设计特性使其在以下场景中具有显著优势:
需搭配SMA内针公头(如金航标KH-SMA-J系列)使用,禁止与MCX、BNC等非SMA接口直接连接,避免接口损坏或信号损耗;
PCB射频走线需保持50Ω阻抗,与连接器一致,减少信号反射;
常规版本适合-40℃~+85℃环境,若需更高温/低温场景,需确认定制化版本。
金航标作为国内射频连接器主流厂商,KH-SMA-P-8029采用RoHS环保材料,通过ISO9001质量体系认证,每批次产品均经过:
该型号凭借紧凑设计、稳定性能与高可靠性,成为小型化射频设备板端连接的优选方案。
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