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Custom Fr4 Printed Circuit Board Manufacturers - Customized PCB Assembly and PCBA – Weilian Electronics

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We've been convinced that with joint efforts, the enterprise between us will bring us mutual benefits. We could guarantee you item excellent and aggressive price tag for Cia Printed Circuit Boards Limited, Blank Pcb Board, Pcb Mount, If you are interested in any of our products or would like to discuss a custom order, please feel free to contact us. We are looking forward to forming successful business relationships with new clients around the world in the near future.
Custom Fr4 Printed Circuit Board Manufacturers - Customized PCB Assembly and PCBA – Weilian Electronics Detail:

Description

Model NO. ETP-005 Condition New
Product Type PCB Assembly and PCBA Min.Hole Size 0.12mm
Solder Mask Colour Green, Blue, White, Black, Yellow, Red etc
Surface Finish
Surface Finish HASL, Enig, OSP, Gold Finger
Min Trace Width/Space 0.075/0.075mm Copper Thickness 1 – 12 Oz
Assembly Modes SMT, DIP, Through Hole Application Field LED, Medical, Industrial, Control Board

About Our PCB Board Design

When we design the PCB board, we also have a set of rules: first, arrange the main component positions according to the signal process, and then follow the “circuit first difficult and then easy, component volume from large to small, strong signal and weak signal separation, high and low. Separate signals, separate analog and digital signals, try to make wiring as short as possible, and make the layout as reasonable as possible”; special attention must be paid to separate “signal ground” and “power ground”; this is mainly to prevent power ground The line sometimes has a large current passing through it. If this current is introduced into the signal terminal, it will be reflected to the output terminal through the chip, thus affecting the voltage regulation performance of the switching power supply.
Then, the arrangement position and wiring direction of the components should be as consistent as possible with the wiring of the circuit diagram, which will be much more convenient for later maintenance and inspection.
The ground wire should be as short and wide as possible, and the printed wire passing through the alternating current should also be widened as much as possible. Generally, we have a principle when wiring, the ground wire is the widest, the power wire is the second, and the signal wire is the narrowest.
Minimize the feedback loop, input and output rectification filter loop area as much as possible, this purpose is to reduce the noise interference of the switching power supply.

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Inductive devices such as thermistors should be kept as far away as possible from heat sources or circuit devices that cause interference.
The mutual distance between the dual in-line chips should be greater than 2mm, and the distance between the chip resistor and the chip capacitor should be greater than 0.7mm.
The input filter capacitor should be placed as close as possible to the line that needs to be filtered.
In PCB board design, the most common problems are safety regulations, EMC and interference. In order to solve these problems, we should pay attention to three factors when designing: space distance, creepage distance and insulation penetration distance. Impact.
For example: Creepage distance: when the input voltage is 50V-250V, the L-N in front of the fuse is ≥2.5mm, when the input voltage is 250V-500V, the L-N in front of the fuse is ≥5.0mm; electrical clearance: when the input voltage is 50V-250V, L—N ≥ 1.7mm in front of the fuse, when the input voltage is 250V-500V, L—N ≥ 3.0mm in front of the fuse; no requirement is required after the fuse, but try to keep a certain distance to avoid short circuit damage to the power supply; primary side AC to DC part ≥ 2.0 mm; primary side DC ground to ground ≥4.0mm, such as primary side to ground; primary side to secondary side ≥6.4mm, such as optocoupler, Y capacitor and other component parts, the pin spacing is less than or equal to 6.4mm to be slotted; transformer two-stage ≥6.4mm or more, ≥8mm for reinforced insulation.

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FAQ

Q1: How do you make sure the quality of the PCBs?
A1: Our PCBs are all 100% test including Flying Probe Test, E-test or AOI.

Q2: What is the lead time?
A2: Sample needs 2-4 working days, mass production needs 7-10 working days. It depends on the files and quantity.

Q3: Can I get the best price?
A3: Yes. To help customers control cost is what we are always trying to do. Our engineers will provide the best design to save PCB material.


Product detail pictures:

Custom Fr4 Printed Circuit Board Manufacturers - Customized PCB Assembly and PCBA – Weilian Electronics detail pictures

Custom Fr4 Printed Circuit Board Manufacturers - Customized PCB Assembly and PCBA – Weilian Electronics detail pictures

Custom Fr4 Printed Circuit Board Manufacturers - Customized PCB Assembly and PCBA – Weilian Electronics detail pictures

Custom Fr4 Printed Circuit Board Manufacturers - Customized PCB Assembly and PCBA – Weilian Electronics detail pictures

Custom Fr4 Printed Circuit Board Manufacturers - Customized PCB Assembly and PCBA – Weilian Electronics detail pictures

Custom Fr4 Printed Circuit Board Manufacturers - Customized PCB Assembly and PCBA – Weilian Electronics detail pictures


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Bear Customer first, Quality first in mind, we work closely with our customers and provide them with efficient and professional services for Custom Fr4 Printed Circuit Board Manufacturers - Customized PCB Assembly and PCBA – Weilian Electronics , The product will supply to all over the world, such as: United Arab emirates, Angola, Uruguay, We also provide OEM service that caters to your specific needs and requirements. With a strong team of experienced engineers in hose design and development, we value every opportunity to provide best products for our customers.
  • The quality of the products is very good, especially in the details, can be seen that the company work actively to satisfy customer's interest, a nice supplier.
    5 Stars By Ann from Washington - 2018.09.16 11:31
    Superb technology, perfect after-sales service and efficient work efficiency, we think this is our best choice.
    5 Stars By Esther from South Korea - 2018.07.12 12:19
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