The USB cable is used for the connection and communication between the computer and the external device, and can also be used for the charging of the mobile phone and the connection with the outside. In layman's terms, it is used to transfer data and charge.
The wire resistance is an important evaluation parameter for the quality of the wire. We can roughly estimate the resistance of the wire through the pressure drop test. If the wire material is poor, the wire resistance will be larger, the conductivity will be worse, and the loss during the charging process will be more. It should be avoided as much as possible when purchasing. The factors that actually affect the resistance of the USB cable include:
1. Insulated wire diameter: the larger the insulated wire diameter, the higher the impedance. The diameter of the insulated wire is uneven and the impedance is uneven.
2. Conductor wire diameter: As the conductor wire diameter increases, the impedance decreases. The conductor diameter is not uniform-the impedance is not uniform.
3. Foaming degree: As the foaming degree increases, the dielectric constant decreases and the impedance increases. The degree of foaming is uneven, the dielectric constant is uneven, and the impedance is uneven.
4. Twisted pitch: a) Unshielded wire pair: the twisted pitch is reduced, and the impedance is reduced. b) Shielded wire pair: the pitch of the twisted pair increases, and the impedance decreases.
5. Winding: The winding tension is large, the aluminum foil is tight, and the impedance is small.
6. Cable pitch (non-pair shielding): The cable pitch decreases and the impedance decreases.
7. Cable wrap (non-pair shielding): The cable wrap is tight and the impedance is reduced.
8. Braided tightness (non-pair shielding): tightly braided, impedance is reduced.
9. The tightness of the outer quilt (non-pair shielding): The outer quilt is tight and the impedance is small.
USB supports mouse, keyboard, printer, scanner, camera, and other electronic products according to different interfaces and data lines. TXGA is a leader among domestic connector manufacturers, providing customers with connector products and technology-oriented customized services with high-quality products, considerate services and reasonable prices. Purchase a USB cable and enter TXGA [Product Center].
