The shielded wire harness for DB9 male-to-male connectors is a dedicated cable assembly developed on the basis of standard DB9 male-to-male connection cables, with an additional shielding layer structure. Its core function is to suppress electromagnetic interference (EMI) and radio frequency interference (RFI), ensuring stable serial data transmission, and it is especially suitable for complex electromagnetic environments. The conductor is mainly made of oxygen-free copper (OFC) or tinned oxygen-free copper: oxygen-free copper has high purity (≥99.95%), excellent electrical conductivity and low resistance, which can reduce signal attenuation during transmission and is ideal for medium and long-distance serial communication; tin-plating treatment enhances oxidation and corrosion resistance, extends the service life of the wire harness, and improves soldering stability.
The DB9 male-to-male connector shielded wire harness stands out for its premium core materials and outstanding performance features: the conductors are made of high-purity oxygen-free copper (OFC) or tinned oxygen-free copper—where the former delivers excellent electrical conductivity and low resistance, minimizing signal attenuation during medium and long-distance transmission, while the latter enhances oxidation resistance and soldering stability; the insulation layer is crafted from PVC, PE or high-end fluoroplastics, catering to insulation and temperature resistance requirements across diverse application scenarios; the shielding layer primarily adopts a copper wire braid or aluminum foil structure, with some variants boasting a double-shielding design that, when paired with grounding wires, can effectively suppress EMI and RFI interference; the blue connector core is mostly composed of PBT + 30% glass fiber, which combines high insulation resistance, high temperature resistance and anti-deformation properties. Overall, the wire harness offers the advantages of stable transmission, strong anti-interference capability and excellent durability, making it suitable for complex electromagnetic environments such as industrial automation and network debugging.
This product boasts excellent electrical safety, environmental durability, assembly-friendliness and maintenance convenience: its high insulation resistance and voltage withstanding capability can effectively suppress crosstalk, making it suitable for low-level signal transmission of serial protocols such as RS-232/485/422; the glass fiber reinforced PBT material features moisture and chemical corrosion resistance, which is adaptable to complex working conditions like industrial sites, marine and automotive applications; the precise pinhole positioning design prevents terminal deviation during soldering or crimping, improving the assembly efficiency of wire harnesses and PCBs; the blue visual identification facilitates quick interface troubleshooting and shortens equipment commissioning and maintenance time.
This shielded wire harness boasts a wide range of typical applications: in industrial automation, it enables serial communication for PLCs, HMI touchscreens and CNC machine tools, effectively resisting EMI interference from frequency converters, motors and other equipment; in network device debugging, it is suitable for Console port configuration of routers and switches, ensuring accurate command transmission in the complex multi-device environment of computer rooms; in security and instrumentation, it supports data acquisition for access controllers, serial cameras and testing meters, realizing stable transmission of low-level signals; meanwhile, it meets the operational requirements of automotive and marine electronics, and with its vibration and salt spray resistance, it is ideal for the long-term operation of serial devices such as GPS and driving recorders.
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Part name |
Material name and specifications |
|
Product Model |
DB Male to Male |
|
Current |
5A |
|
Rated voltage |
DC 500V |
|
Plating |
Gold Plated |
|
Plastic material |
PBT + 30% Glass Fiber Reinforced |
|
Insulation Resistance |
≥ 1000 MΩ |
|
Use time |
500-1000 times |
|
Fire rating |
UL94 V0 |
|
Temperature range |
-55℃to105℃ |
|
Wiring method |
welding |
|
Wire gauge |
28AWG-26AWG |
|
Gender |
Male |
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