Introduction of basic types and common sense of DC socket
Release time：2019-10-24 Clicks： Click
What are the basic types of DC socket? Some common sense is not clear. You can come here to have a look. The specific details are introduced below.
DC socket is widely used in our daily life. DC socket is a kind of power socket matched with special power supply for computer display. DC socket is composed of transverse socket, fork contact spring, longitudinal socket, insulating base and directional keyway. Two fork contact spring of DC socket are located in the center of the base, forming vertical and horizontal arrangement and not connected with each other.
I. type of DC socket
DC socket is divided into two packages: SMT chip package and dip plug-in package.
II. Model and specification of DC socket
The center pin of DC socket is 0.5mm/0.7mm/1.3mm/1.65mm/2.0mm/2.5mm/3.0mm. Common DC socket specifications are: 2.35 * 0.7tvdc plug, 3.0 * 0.1tv DC plug, 2.5 * 0.75tvdc plug, 3.5 * 1.1tvdc plug, 3.2 * 0.9tv DC plug, 3.5 * 1.35tv, 2.0 * 0.6tvdc plug, 5.5 * 2.1tvdc plug, 6.5 * 3.0tvdc plug, 5.5 * 2.5tvdc plug.
III. DC socket application
1. Audio and video products: MP3, Bluetooth headset, smart speaker, etc.
2. Digital products: digital camera, digital camera, etc.
3. Remote control: remote control of vehicle, roll door and home anti-theft products;
4. Communication products: mobile phone, car phone, telephone, building equipment, PDA, etc.
5. Household appliances: TV, microwave oven, rice cooker, electric wind, electronic body scale, electronic fat scale, electronic kitchen scale, etc.
6. Security products: visual walkie talkie, monitor, etc.
7. Toys: electronic toys, etc.
8. Computer products: camera, display, etc.
9. Fitness equipment: treadmill, massager, etc.
10. Medical equipment: sphygmomanometer, thermometer, hospital call system, etc.
IV. technical specifications of DC socket
Contact resistance: contact resistance ≤ 0.03mm Ω
Rated load: rated load 30V DC 0.5A
Insulation resistance: insulation resistance ≥ 100m Ω
Insertion and extraction force 3N ~ 30n
Withstand voltage: withstand voltage 500V, AC / min electrical life: 5000 times
Temperature range: temperature - 40 ~ + 70 ℃
V. how to weld DC socket
Scrape the position to be welded, apply less solder paste, use 100W soldering iron, blow air with mouth, and cool immediately after the colloid melts.
V. selection of DC socket
Taking "30V / 0.5A" as an example, it shows that the allowable current is 0.5A and the voltage level is 30V.
"0.5A", maximum safe current. If it is greater than 0.5A, it will generate heat, oxidize and break down.
30V is the rated index, and there is a difference between the two.
Pay attention to the brand benefits, recommend to choose the brand products of large companies, with guaranteed quality. The appearance surface is smooth and free of any defects.
Vi. DC socket eliminates sparks
The triode or MOS transistor with high current should be selected, and then the relay should be selected.
Editor's summary: the above is a common DC socket type and model specifications have what related knowledge, I hope to be able to help the needs of friends in this regard! For more information, please continue to follow our website.