products

Industrial Power Supply Custom Circuit Board Assembly PCB High TG Heavy 4 OZ Copper

Basic Information
Place of Origin: China
Brand Name: WITGAIN PCB
Certification: UL
Model Number: Heavy Copper PCB0001
Minimum Order Quantity: 1 pcs/lot
Price: negotiable
Packaging Details: Vacuum bubble bag packaging
Delivery Time: 20 days
Payment Terms: T/T
Supply Ability: 100k pcs/month
Detail Information
Place Of Origin:: Guangdong China Material:: FR4 TG>170
No Of Layers:: 6 Layers Solder Mask Colour:: Green
Surface Technics:: ENIG Copper Thickness: 4/4/4/4/4/4OZ
High Light:

Industrial Custom Circuit Board Assembly

,

4 OZ Custom Circuit Board Assembly

,

PCB High TG


Product Description

Industrial Power Supply Used PCB Heavy 4 OZ Copper Thickness High TG Material

 

 

Main Features:

 

1 6 Layer FR4 substrate printed circuit board with 2.5mm.

2 Heavy copper on each layer, copper thickness is 4OZ 120UM.

3 The surface treament on exposed copper pad is immersion gold.

4 Silscreen color is white.

5 Solder mask color is green.

6 Gerber file or pcb file is essential for pcb production.

7 UPS area used.

8  FR4 Material:  S100-2 High TG Degree

 

 

S1000-2 Material data sheet:

 

 

S1000-2
Items Method Condition Unit Typical Value
Tg IPC-TM-650 2.4.25 DSC 180
IPC-TM-650 2.4.24.4 DMA 185
Td IPC-TM-650 2.4.24.6 5% wt. loss 345
CTE (Z-axis) IPC-TM-650 2.4.24 Before Tg ppm/℃ 45
After Tg ppm/℃ 220
50-260℃ % 2.8
T260 IPC-TM-650 2.4.24.1 TMA min 60
T288 IPC-TM-650 2.4.24.1 TMA min 20
T300 IPC-TM-650 2.4.24.1 TMA min 5
Thermal Stress IPC-TM-650 2.4.13.1 288℃, solder dip -- 100S No Delamination
Volume Resistivity IPC-TM-650 2.5.17.1 After moisture resistance MΩ.cm 2.2 x 108
E-24/125 MΩ.cm 4.5 x 106
Surface Resistivity IPC-TM-650 2.5.17.1 After moisture resistance 7.9 x 107
E-24/125 1.7 x 106
Arc Resistance IPC-TM-650 2.5.1 D-48/50+D-4/23 s 100
Dielectric Breakdown IPC-TM-650 2.5.6 D-48/50+D-4/23 kV 63
Dissipation Constant (Dk) IPC-TM-650 2.5.5.9 1MHz -- 4.8
IEC 61189-2-721 10GHz --
Dissipation Factor (Df) IPC-TM-650 2.5.5.9 1MHz -- 0.013
IEC 61189-2-721 10GHz --
Peel Strength (1Oz HTE copper foil) IPC-TM-650 2.4.8 A N/mm
After thermal Stress 288℃,10s N/mm 1.38
125℃ N/mm 1.07
Flexural Strength LW IPC-TM-650 2.4.4 A MPa 562
CW IPC-TM-650 2.4.4 A MPa 518
Water Absorption IPC-TM-650 2.6.2.1 E-1/105+D-24/23 % 0.1
CTI IEC60112 A Rating PLC 3
Flammability UL94 C-48/23/50 Rating V-0
E-24/125 Rating V-0

 

 

FAQ:

 

Q1:What is Solder Flux? Why do we use it?

A1: Solder Flux is a chemical cleaning agent used when soldering electronic components onto printed circuit boards. It is used in both manual hand-soldering as well as the different automated soldering processes used by PCB contract manufacturers.

Printed Circuit boards usually have copper traces which can oxidize when exposed to air or get contaminated while handling the board. This can prevent the formation of good solder joints. In order to remove this contamination and avoid oxidization, it is crucial that the board is cleaned with flux prior to soldering. Flux can be used to clean and remove these oxides and other impurities from the board.

Physically, Solder flux can be solid, semi-solid, or a liquid. It is usually available as a paste in jars/tin/cans. It is also available as a liquid in bottles. Flux-pens are generally used to apply flux when hand soldering.

Most often, a solder flux is available as an adhesive-like chemical compound nature and is responsible for holding the components in place until the reflow process. The flux also protects the metal surfaces from re-oxidation during soldering. The flux contains additives to improve the flow characteristics of the molten solder and thus helps in wetting of the board.

Categories of Flux

According to the electronics industry standards, J-STD-004, solder flux can be classified into 3 major categories based on its composition, activity (strength), the presence or lack of halide activators.

1. Rosin and Rosin Substitutes: Rosin flux is the oldest and still one of the most common fluxes used for electrical components. These fluxes are derived from a pine tree extract. Rosin flux is nearly inert at room temperature, gets active only when heated.

2. Water Soluble, or Organic acid flux: Organic acid flux is water soluble and can be cleaned with water, and hence the name. these fluxes are most commonly used for soldering electrical circuits. It cleans oxidation on electrical leads very quickly.

3. No-Clean: these fluxes are made with resins and various levels of solid residues. According to the name, these fluxes require little or no cleaning.

How is Flux Applied?

Solder flux can be applied on the board in a number of ways based on the soldering process being used.

Manual hand-soldering: Solder flux can be applied manually using a solder pen or in many cases flux is not mixed within the solder wire or solder bar. If the flux is mixed inside the solder, then simply heating the wire onto the surface with soldering iron is adequate. Alternatively, flux can be evenly spread on the surface of the board before applying the solder.

Wave Soldering: In this case, the flux is sprayed on the board prior to it going through the solder wave. Once in place, the flux cleans the components that are to be soldered. This removes any oxide layers that have formed. If the board is using a more corrosive type of flux, then the board will have to go through a pre-cleaning before the flux is applied.

Reflow Soldering: Solder flux used for the solder reflow process, is a paste composed of a sticky flux and small spheres of metal solder. Solder paste is a combination of a powder made up of metal solder particles and sticky flux that has the consistency of putty. They are generally mixed as a 50/50 ratio.

Here, the flux not only does its usual job of cleaning the soldering surfaces of impurities and oxidation, but it also provides a temporary adhesive that holds the surface mount components in place.

Selective Soldering: The flux is applied either by spraying it, or by using a more precise drop jet process. The precise drop-jet process is the application of flux to target locations without overspray.

Soldering Flux Cleaning

Once the soldering process is over, it is crucial to clean the board and remove any unwanted flux residue. Flux residue can affect the performance of the board and can even cause an electrical short circuit. In case of flux that needs cleaning after soldering, or for flux that is more corrosive, solvent cleaning or aqueous cleaners can be used. Apart from the corrosive problems even the residue of no-clean flux can interfere with PCB testing, optical inspection equipment, and some sensitive electronic components. In general, it is best to clean flux residue whenever possible.

The complete soldering process for any solid solder joint includes both the solder and the flux. The purpose of the flux is to prepare the surfaces and to protect the surface during soldering. Flux is an integrated part of soldering, and its application is an integral part of the entire process.

 

Industrial Power Supply Custom Circuit Board Assembly PCB High TG Heavy 4 OZ Copper 0Industrial Power Supply Custom Circuit Board Assembly PCB High TG Heavy 4 OZ Copper 1

 

 

 

Contact Details
admin

Phone Number : +8613826589739

WhatsApp : +008613826589739