How to choose HDMI high-definition cable
1. Choose the right brand
2. Check whether there are certification marks on the product packaging. Check if there are HDMI or Simplay certification marks on the product packaging. If there are two association certification marks at the same time, the quality is more guaranteed.
3. Check the version of the HDMI cable Commercially available versions of the HDMI cable range from 1.1, 1.2a, 1.3a to 1.3b. With each new level version, the bandwidth will be greatly increased, and it is compatible with downward support. The bandwidth of the HDMI 1.3 version is now doubled from the original 4.96Gbps to 10.2Gbps, capable of transmitting high-definition videos with higher color depth and high-definition audio. When purchasing, priority should be given to the HDMI 1.3 version of the cable as the best.
4. Whether the connector has a gold-plated HDMI cable, the connector can not be ignored! Currently, the commercially available HDMI connector processes are gold-plated and nickel. From the perspective of transmission effects, gold-plated connectors are better, which can effectively reduce the loss caused by signal transmission. The HDMI cable with better quality mostly adopts gold plating process in the connector part.
5. Wire manufacturing process
Use pure copper as the inner core: Use pure copper as the inner core, which is more conducive to ensuring the quality of the transmitted signal. HDMI with copper core is softer and easier to bend. If it uses iron core or alloy material, it is very hard to bend and the signal transmission is not good.
Moderate soft and hard cable materials: Good HDMI cables are moderately soft and hard. An HDMI cable that is too stiff is not easy to bend, and it can easily slip or tilt when connected, which may cause poor contact. An HDMI cable that is too soft will affect the transmission quality.
Bright and smooth cable connector: The connector process is also one of the key factors that affect the quality of the HDMI cable. Good HDMI cable connectors are generally gold-plated, and the surface is bright, and the transmitted signal is more stable.
6. The cable uses the cable number. The general standard HDMI cable uses the 28th or 30th line, and the diameter of the good wire is the larger 24 or 22 line, because the thicker the core conductor of the wire, the When transmitting high-frequency signals, the signal attenuation will be smaller.
PCB Screw Terminal Block section
PCB Screw Terminal Block
Screw type PCB wiring terminal, the structural design takes into account the characteristics of convenient wiring and solid screw connection. It can connect all types of conductors with a cross section of 0.2mm to 35mm, with a spacing of 2.5mm-19.0mm.
The screw type terminal block has the advantages of convenient connection and firm screw connection. It can connect all types of conductors with cross-section of 0.08mm2 to 25mm2, and the spacing is 2.54mm to 15.0mm. The product design conforms to iec60998, ul1059 CSA c22.2 No.158 and other international standards. ]
PCB Screw Terminal Block
Screw type PCB wiring terminal, the structural design takes into account the characteristics of convenient wiring and solid screw connection. It can connect all types of conductors with a cross section of 0.2mm to 35mm, with a spacing of 2.5mm-19.0mm.
The screw type terminal block has the advantages of convenient connection and firm screw connection. It can connect all types of conductors with cross-section of 0.08mm2 to 25mm2, and the spacing is 2.54mm to 15.0mm. The product design conforms to iec60998, ul1059 CSA c22.2 No.158 and other international standards. ]
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