▲ Some wires are not marked with AWG specifications, only CL, CSA information.
A comparison of the wires of different AWG specifications shows that the wire radius is really different, but you should pay attention to the purchase. If the isolation layer is streamlined and cut corners, the wire with high specification may not be relatively thick.
AWG design can withstand different current levels Since it is difficult to find the USB cable at the moment, each AWG specification can accurately carry the current amount information, so only the information available on the network is available for your reference. However, it is certain that in the general application of USB wire, the AWG value can withstand the high amount of passing current, and the key point is the cross-sectional area.
Of course, the AWG is just an industrial design specification and is based on security. Due to the quality of the wire production and the temperature of the environment, it has a great influence on the conduction characteristics. Many of the variables are difficult to complete, so the reference point can only be found by the design specifications. When purchasing, try to pick a wire with a thicker AWG and a higher AWG specification.
▲The red box is the specification of the wire power supply wire of USB-IF. The current quantity information is for reference only, which means that the design load of different specifications is really different.
Carefully compare AWG specifications
USB cable is not low in gross margin compared to other peripheral products, but the unit price is not high. Based on the relatively high cost of the AWG, the wire consumers are naturally price-oriented.
In summary, how do we pick a suitable USB cable? It is very simple~
1. Smart phones are recommended to select at least 26AWG specifications, and tablets are based on 24AWG. However, it should be noted that the power source terminals such as USB chargers and mobile power supplies have output current specifications greater than the device design input current, so it makes sense to purchase high-standard USB cables.
2. If the appearance of the wire of the same specification is different, then in theory it is better to be thicker. 3. Select the appropriate length. If you have a variety of different length requirements for your daily application, you can purchase several wires of different lengths. Because the wire itself has impedance, it will affect the conduction voltage and current loss. Although we did not discuss this part of the information this time, it is better to choose the appropriate length when purchasing.
Sinodec basic USB2.0 Micro USB cable