Headphone jacks are currently widely used in the electronic equipment industry, but with the growing demand for headphone jacks, the losses caused by using headphone jacks are also relatively large. I think this may be because people don’t know the difference between the structure of the headphone jack and the specifications of the connector, which leads to so many losses in the use of the headphone jack. So, let’s take a look at the structural composition and interface specifications of the headphone jack!

Composed of headphone socket structure

Headphone sockets are generally composed of multiple contacts and jack structures, mainly including headphone jacks, jacks and conductive sheets. First of all, regarding the headphone plug, the headphone plug is provided with a central plunger, and secondly, auxiliary plungers are provided on both sides thereof, and more than two sets of metal sheets are provided on both sides of the auxiliary plungers. However, a circular jack is provided in the center of the headphone socket, which serves as the connecting part of the headphone plug pins. The conductive sheet of the headphone socket also has a curved contact portion, which contacts the metal sheets on both sides of the auxiliary plunger to form an effective conductive contact and provide transmission. However, auxiliary sockets are also provided on both sides of the headphone socket, which are provided for the auxiliary socket. In addition, two opposite conductive sheets are provided inside the plug insertion hole of the auxiliary headphone plug.

About the specification distinction of the headphone socket connector

About the current connector specifications of the headphone socket, a concentric connector with the wired headphone connector of the mobile phone as the standard specification is stipulated, including the plug side and the plug side, and the side of the mobile phone needs to use the plug side. In addition, according to the diameter size of the connector, two types of connectors are specified: 2.5mm headphone jack and 3.5mm headphone jack. In addition, in order to distinguish the headphone plug of the mobile phone, the headphone socket connector of the mobile phone unifies the concentric connector specified in the standard. In addition, the commonly used headphone socket connector standard distinguishes 2.5mm, 3.5mm and 6.5mm.

Precautions for installing the headphone socket

1. Regarding the installation and wiring method of the current headphone socket, it is actually roughly the same as the installation method of the general touch switch. First, be sure to cut off the power before installation and connect the wires as shown on the label paper. And do a good job of summarizing the wires to avoid short-circuiting the wires and damaging the headphone jack. It is strictly forbidden to directly connect the headphone jack circuit to the terminal.

2. The headphone interface currently has an automatic power-off function, but it is mainly because the effective waveform of the load input voltage in the standby state and the power-on state is quite different, and the task can be stopped. The effective waveform of the load in the standby state refers to the size of the part with a relative value greater than the threshold in one cycle, and the effective waveform part of the load device in the on state refers to the use of only one trigger to connect to the monostable circuit in one cycle, and the single pin outputs a low level in the steady state. Therefore, regarding the installation and use of the headphone plug, it is strictly forbidden to operate the circuit load of the headphone plug in a short circuit.