Today I’m going to talk to you about DC sockets. Firmly believe that most people must not too understood, dc socket in our real life is widely used, and refers to the dc socket is a kind of power supply facilities dedicated computer monitors the power socket, dc socket by lateral port, fork type contact shrapnel, transverse interface, insulating base, directional variegated keyway, dc socket type two fork contact shrapnel is located in the center of the base, forming vertical and horizontal to the sorting out of each other’s connection.
First, the type of DC socket
DC sockets come in two packages: SMT and DIP.
Two, DC socket model specifications
Dc outlet center needles are: 0.5 mm / 0.7 mm / 1.3 mm / 1.65 mm / 2.0 mm / 2.5 mm / 3.0 mm. Common DC socket specifications are: 2.35*0.7 TVDC plug, 3.0*0.1 TVDC plug, 2.5*0.75 TVDC plug, 3.5*1.1TVDC plug, 3.2*0.9 TVDC plug, 3.5*1.35TV, 2.0*0.6 TVDC plug 5.5*2.1 TVDC plug, 6.5*3.0 TVDC plug, 5.5*2.5 TVDC plug.
Three, the application of DC socket
1. Video and audio products: MP3, MP4, CD. The sound;
2. Digital products: digital cameras, digital video cameras, etc.
3. Remote control: remote control for vehicles, rolling doors and home anti-theft products;
4, communication products: mobile phone, car phone, telephone, building equipment, smart phone, etc.;
5. Household appliances: TV set, microwave oven, rice cooker, electric wind, electronic body scale, electronic fat scale, electronic kitchen scale, etc.
6, security products: video walkie-talkie, monitor, etc.;
7. Toys: electronic toys, etc.
8. Computer products: camera, voice recorder, etc.
9. Fitness equipment: running machine, massage chair, etc.
10. Medical equipment: blood pressure monitor, thermometer, hospital calling system, etc.
Four, DC socket technical indicators
Contact resistance: ≤0.03mmΩ
Rated load: 30VDC0.5A
Insulation resistance: ≥100MΩ
Insertion force: 3N ~ 30N
With stand Voltage: 500VAC/min
Electrical life: 5000 times
Temperature range: temperature-40 ~+70℃
Five, how to weld DC socket
Scrape the position to be welded, apply less solder paste, use 100W soldering iron, blow air with your mouth, and heat immediately when the colloid melts.
Six, free choice of DC socket
Taking “30V/0.5A” as an example, the allowable current is 0.5A and the insulation voltage level is 30V.
“0.5A”, maximum safe current. More than 0.5A will be heating, hydrolysis, failure.
30V is the index of insulation material, there is a difference between the two.
Pay attention to the brand benefit, it is suggested to choose the brand products of large companies freely, and the quality is guaranteed. The appearance of the surface is clean, without any missing.
Seven, DC socket to avoid sparks
To choose a large current of the transistor or MOS tube, then choose the relay.
I hope these introduction can be helpful to you, more related content, please continue to pay attention to us!
Post time: Apr-02-2021