Extremely thin coaxial cables and Hirose DF81D-40P-0.4SD in the application of notebook screen harnesses

With laptops continuously developing towards slimming and portability, the design of internal components becomes increasingly intricate. The screen, as the most intuitive interface for user interaction, has very high requirements for the stability and speed of signal transmission. The extremely fine coaxial cable (Micro Coaxial Cable) stands out for its ultra-small wire diameter, high anti-interference capability, and excellent high-speed transmission performance, making it an important choice for modern laptop screen cable assembly design. The Hirose DF81D-40P-0.4SD connector is specifically designed for extremely fine coaxial cables and can meet the stringent requirements for high-speed signal interconnection in slim devices.

---

Why use extremely thin coaxial cables for notebook screen bundles?

Extremely thin coaxial cables, also known as Micro Coaxial Cables, have several significant advantages compared to traditional cables:

Extremely fine wire diameter, saves space

  The internal space of a notebook is limited, and the ordinary cables have a large volume and high rigidity, making it difficult to meet the need for multi-bend wiring. The ultra-thin coaxial cables have a very small diameter, are light and flexible, and can adapt to the screen flipping and folding actions, which is convenient for wiring in narrow spaces.

Strong anti-interference ability, ensuring signal quality

The internal structure of the ultra-fine coaxial cable consists of a tiny central conductor and multiple shielding layers, effectively suppressing electromagnetic interference. Notebook screens require high-speed transmission of video signals, and any interference or signal attenuation may cause the screen to flicker or blur. Using micro coaxial cable can ensure the clearest and most stable signal to the maximum extent.

Outstanding high-frequency transmission performance

Axial structure is inherently suitable for high-speed, high-frequency signal transmission, which can support high-resolution, low-latency video output, thereby improving the screen display quality.

---

Hirose DF81D-40P-0.4SD connector introduction
Hirose DF81D-40P-0.4SD is a high-performance rectangular connector specially designed for micro coaxial cables (Micro Coaxial Cable), widely used in the screen interconnection of portable devices such as laptops and tablets.

Main specifications are as follows:

• Connector type: Plug

• Type of Contact: Outer Shroud Contact

• Contact spacing: 0.4mm

• Number of contacts: 40

• Welding method: Soldering (Solder)

• Compatible wire specifications: AWG 40-46 (miniature coaxial cable)

Rated Current: 0.3A

Rated Voltage: 100V AC/DC

• Voltage Resistance: 250V

• Operating temperature range: -35°C to +85°C

• Insertion and extraction times: 30 times

The combination of ultra-fine coaxial cables with Hirose DF81D-40P-0.4SD can meet the requirements of notebook screens for thinness, high-speed signal transmission, and anti-interference, becoming an ideal solution for the design of future notebook screen cables.

With the development of notebook devices towards slimming down, high-speed, stable, and interference-resistant screen interconnection has become a key design factor. The ultra-fine coaxial cable (Micro Coaxial Cable) with its super-fine wire diameter, high-frequency transmission capabilities, and excellent shielding performance, combined with the Hirose DF81D-40P-0.4SD connector, provides a reliable interconnection solution for notebook screen cables. For notebook products that pursue high performance and slim design, this combination scheme is undoubtedly an ideal choice.

I amSuzhou Huichengyuan Electronic TechnologyLong-term focus on the design and customization of high-speed signal cables and ultra-thin coaxial cables, committed to providing customers with stable and reliable high-speed interconnection solutions. For technical support or product consultation, please contact:Manager Yin 18913280527 (WeChat number the same)。