What are the performance characteristics of the pin bar

With the rapid development of current electronic technology, needles are also common electronic components in the electronic market. The working principle of the pin bar is to maintain the signal distortion and energy loss between the device system and the system through the power connection and signal transmission between the component and the device. For people who are new to it, such as the performance characteristics and operation precautions of the pin and female, they may not know much about these knowledge points. Here is to explain the performance characteristics and operation precautions of the row of pins.

Pin arrangement characteristics

1. Easy to operate, the mechanical strength of the needle is also an important factor. The connector is usually the interface for the PCB to communicate with the external components of the motherboard, the bearing capacity of the pin bar is very strong, and sometimes it may encounter considerable external force, which is intact.

2. The components assembled by the through hole technology are much higher in reliability than the corresponding T components. Whether it is strong pull, extrusion or thermal shock, it can withstand and is not easy to leave the PCB.

3. The field wiring of the industrial field is usually a high-power component, which can meet the needs of different transmission of high voltage and high current.

4. These advantages follow with the reduction and weakening of the adhesion of the upper components of the PCB. The pin bar element is characterized by compact design and easy installation, which is obviously different from the size and assembly form of the through hole pin.

5. The electrical strength refers to the rated test voltage between the pin, the contact or the contact and the housing.

6. The general pin bar can adapt to the attenuation caused by electromagnetic interference, and the ability to shield electromagnetic interference.

7. The contact resistance of the row of pins is as small as tens of milliohms.

Precautions for removing a bus

1. Cooling design pin bar will heat up at work, the temperature is too high will affect the LED, therefore, PCB plate heat dissipation and box ventilation heat dissipation will affect the pin bar.

2. Check whether good ESD-preventive measures are taken for the pin bar.

3. The current value of the smaller pin bar is 20mA, and it is generally recommended that the maximum use current does not exceed 80% of the nominal value, especially in electronic devices with small point spacing, due to poor heat dissipation conditions, the current value should also be reduced.

4. Verticality of the control board. For the in-line pin bar, there should be enough technology to ensure that the LED is perpendicular to the PCB board when the furnace is heated.

5. The temperature and furnace time of wave soldering should be strictly controlled. The preheating temperature is 1000 ° C ±5 ° C and the maximum is 120 ° C. The preheating temperature must rise steadily. The welding temperature is 245 ° C ±5 ° C, and the recommended welding time is not more than 3 seconds.