Testing Procedures For PCB Board
---We perform multiple quality assuring procedures before shipping out any PCB board. These include:
* Visual Inspection
* Flying probe
* Bed of nails
·* Impedance control
·* Solder-ability detection
* Digital metallograghic microscope
·*AOI (Automated Optical Inspection)
Detailed Terms for PCB Manufacturing
---Technical requirement for pcb assembly:
* Professional Surface-mounting and Through-hole soldering Technology
* Various sizes like 1206,0805,0603 components SMT technology
* ICT(In Circuit Test),FCT(Functional Circuit Test) technology.
* PCB Assembly With UL,CE,FCC,Rohs Approval
* Nitrogen gas reflow soldering technology for SMT.
* High Standard SMT&Solder Assembly Line
* High density interconnected board placement technology capacity.
Surface Treatment
Lead-free HAL
Gold Plating (1-30 micro inch)
OSP
Silver Plating
Pure Tin Plating
Immersion Tin
Immersion Gold
Gold Finger
Other Service:
A) We have many special material as rogers, teflon, taconic, Fr-4 high tg, Ceramic in stock. Welcome to send us your inquiry.
B) We also provide sourcing components , PCB design , PCB copy , PCB drawing , PCB assembly and so on .
Product Details:
Payment & Shipping Terms:
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Usage: | Outdoor | Pitch: | 20 |
---|---|---|---|
Highlight: | outdoor full color led signs,scrolling led signs |
P20 High Brightness Full Color LED Signs Outdoor Led Display Board
Features:
1. high brightness;
2. easy to change the poster and install;
3. welcome to customize individual design or size.
Main advantages:
1. New mask design makes LED light almost zero reflection, which ensures the screen displaying effect;
2. The cabinet of unit modules adopts to high-temperature spraying technology, the antirust function is greatly improved;
3. Module surface flatness ± 0.2mm, the entire screen has good flatness;
4.High uniformity display color;
5. For improving the service life, PCB is made by wave soldering process with the green oxygen isolation layer, whichprevents the line of moisture and oxidation.
6. Service efficiency of the screen switch power supply is increased substantially, which reduces power failure rate;
7. Using fishbone bus line greatly reduces the contact problem;
8. IP65 grade for high performance waterproof and dustproof capability;
Item |
Product Parameters |
Model |
P20 |
Pitch(mm) |
20 |
Resolution (dots/sq.m) |
2500 |
Pixel Configuration |
2R1G |
LED type |
DIP546 |
Module size (mm) |
192X96 |
Module Resolution(dots) |
16 X 8 |
Recommended Minimum Viewing Distance(m) |
12 |
Brightness(/cd) |
≥3500 |
Viewing Angle - Horizontal(Degree) |
110 |
Viewing Angle - Vertical |
65 |
Scan Mode |
1/4 scan constant current |
Display Refresh Rate(Hertz) |
≥400 |
Brightness Control(Level) |
100 |
Frame Rate(Hz/s) |
75 |
Input Voltage(VAC) |
110±10, 220±10 |
Input Power Frequency(Hertz) |
50 ~ 60 |
MTBF(Hours) |
≥5000 |
Lifespan (50%Brightness)(Hours) |
≥100000 |
Module Brightness uniformity |
<5% |
Blind Spot Rate |
1/10000 |
Operating System |
Asynchronous control system |
Contact Person: Miss. aaa
Tel: 86 755 8546321
Fax: 86-10-66557788-2345