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Component Sourcing

BAIYUAN TECH?is a one-stop shop for all your?PCB Assembly?requirements, our services start from?PCB design and layout,?component sourcing,?PCB manufacturing,?PCB assembly?to testing, all under one roof.

BAIYUAN TECH?takes care of finding Difficult-To-Locate(hard-to-buy) parts. we have component sourcing engineers in charge of selecting?cross-referenced and substitute parts, finding substitutes for obsolete components with your approval, in case where the original parts are not obtainable.

Your Reliable Component Sourcing Supplier

If you are looking for a reliable component sourcing partner? You’ve come to the right place.No matter you are an electrical engineer, a product designer, a system integrator or a maker looking for component sourcing, BAIYUAN TECH?will be your perfect partner China.

While large companies have different procurement specialists work on separate items such as passive components, ICs, mechanical parts..etc, and also have import department for getting all documents with customs clearance, but how about small companies and design engineers? we at Venture can make your component sourcing work easy and fast. Our component sourcing team will deal with as many distributors as is needed to fulfill the procurement task in the best possible way!?

For your PCB assembly projects, we can take care of your component sourcing according to your Bill of Material (BOM), so that you don’t have to worry about checking and comparing with multiple sources on quantities and prices. We work with all major global distributors such as Digikey, Mouser, Element 14, Future etc., and also with China local authorized distributors, in this way we can deliver reliability and traceability components assembled on board ( or not assembled ) to your hand.

Avoid the hassle of component sourcing of your PCB assembly projects and focus on your design instead! We have component engineers in charge of selecting, sourcing, testing, and qualifying parts, as well as maintaining approved parts lists and finding substitutes for obsolete components.

About BAIYAUN TECH

Your Leading Component Sourcing Supplier in China

BAIYUAN TECH?has an effective component sourcing system for your PCB assembly projects, only the parts you specified on your BOM are ordered for each of your assembly jobs, No substitutions are ever used without your approval. we take care of the entire logistics of parts and materials, and manage the procurement systems.

Our normal component sourcing time is usually completed in, no more than 1 week from the date the parts are ordered to the date the parts are in, if the parts stock are in China. All parts accepted in Venture inventory storage facilities are tested for quality before use.

We will optimize the choice of packaging (cut tape, tube, bulk, etc.) vs quantity in smaller BOMs to lower total cost for your prototype PCB assembly project.?To get a component quote, pls send an inquiry to?[email protected]

(1)10 Years Of Experience In Dealing WithProcurement And Logistics Of Components

(2)Closely Work With All Major Global Authorized Distributor Such As Digikey, Mouse.,Etc

(3)100% New Original Guarantee

(4)7/24 Live Sales & Tech Support

PCB Components Sourcing: Your Ultimate Guide

Today we will learn about PCB component sourcing which is a critical process in ensuring you get the best quality of PCB devices.

In this guide, we will start by defining PCB component sourcing. We will then look at how beneficial it is to source for these components from a manufacturer.

Thereafter, we shall discuss the process of getting quotations, quality testing, and sourcing for some special components.

Finally, we will also look at some component sourcing FAQs.

By the end of this guide, you will know the ins and outs of sourcing for PCB components.

Let’s dive right in.

What is PCB Components Sourcing?

PCB Component sourcing refers to the purchasing the PCB components to be assembled onto the printed circuit board.

Component sourcing can be done in many ways.

You can have the suppliers purchase components from authorized and reliable distributors of their choice and deliver to you by order.

You can also recommend a distributor where the supplier can source the components from and deliver to you.

Still, you can opt to source for some components and let another supplier source the rest.

Component sourcing can either be done locally or from abroad. International component sourcing usually takes around 5-10 working days depending on the duration of customs clearance.

Local sourcing, on the other hand, takes a shorter time. It is therefore preferred, especially if all the required components are available because it helps save on time and production cost.

Advantages of Sourcing Components from PCB Manufacturer

What are the reasons why we may choose to source components through another manufacturer?

·Services offered by consultant manufacturer

Consultants provide critical services like root-cause analysis for PCB, soldering or component placement.

A good consultant has relevant experience and can source the required components faster. Experienced consultants thus provide concrete solutions to delays in component sourcing.

·Technical Expertise

By using specialized equipment such as?3D X-Rays, PCB manufacturers are able to detect problems with components.

The experts also have the ability to interpret analyzed data and make recommendations that resolve PCB component issues.

This means going through them will guarantee you flawless components. They will also provide technical advice on how to deal with poor design and process decisions.

·Experience in fabrication

When sourcing for PCB components, it can be useful to involve manufacturers who have experience in PCB manufacturing.

This is because they can handle manufacturing difficulties and non-conformances and delay in productivity.

·International standards certification

There are set comprehensive acceptance criteria and workmanship qualities of a printed circuit board. For example, most electronic products use an acceptable PCB with?IPC-A-600 standard.

Only consultants with a certification of International standards can be trusted to source such PCB components reliably.

They have experts that define PCB requirements and are able to assess component quality and ascertain component-board compatibility.

·Global supply chain development

Experienced consultants have global networks with most suppliers. They can source PCB components worldwide thereby guaranteeing the right quality.

·PCB component sourcing becomes Easier

Involving a contract manufacturer in component sourcing makes it easy and time-saving. This allows you to speed up your productivity especially when you have to carry out mass production.

·Less paperwork

Contract manufacturers do everything and deliver the PCB components to you according to your order. This will save you the hassles of filling custom forms and international approvals.

·It is relatively cheaper

The contract manufacturer bulk-orders parts and usually have reduced buying, shipping, and customs duty payment costs.

This dramatically reduces the cost when you source your components through PCB contract manufacturers.

·Genuine and authenticated PCB components

Through manufacturers, you will receive new components that have been handled and stored the right way. They have experts who have technical knowledge on how to package their items well.

·Traceability of components

Contract manufacturer involvement in component sourcing leads to the provision of full product information about the source of PCB components.

In case of any faults on the component, you can easily trace where it has been sourced from.

Disadvantages of Sourcing Components from PCB Manufacturer

Even though the sourcing of PCB components from PCB manufacturers has several advantages, it also has some shortcomings as explained below.

·Counterfeit PCB components

You may get counterfeit PCB components which are a bit difficult to detect. These may only be discovered when the devices begin to develop faults.

·Lack of clear component price visibility

Sourcing PCB components from a manufacturer deny you the opportunity to have actual knowledge of product pricing from the original source.

Since you will have less knowledge about supply chain model used by the manufacturer, attention to non-price issues is denied.

There could be changes in prices of PCB components in the market.

Manufacturers sourcing component on your behalf may not reveal this especially when the prices have gone down. Therefore, you may end up spending more than necessary.

·Poor product configuration and manufacturing data

Involving manufacturers to source PCB components may result in a poor quality of product configuration and manufacturing data.

This is because you may provide a BOM with some information missing and the manufacturer may just assume.

When you source the components yourself, you may find a solution to work around the missing information.

·It takes longer to get acquainted with contract manufacturers

Getting the opportunity to deal with well-known manufacturers directly takes a relatively long time.

·Being overtaken by larger authorized distributors

Your order may be disrupted when your contract manufacturer decides to give priority to larger authorized distributors.

Types of PCB Components

There are numerous PCB components and the list below outlines just some of them.

Remember, the type and nature of components will depend on the specific functions of the?PCB assembly?process requirements.

Let’s list some of the most common components of PCB:

·?Battery

·?Resisters

·?Transistors

·?Capacitors

·?LEDs

·?Inductors

·?Diodes

·?Switches

·?Semiconductors

·?Transformers

·?Coil and chokes

·?Processors

·?Controllers

·?Thyristors

·?Thermistors

·?Antennas

·?Ferristers

·?Varistors

·?Connectors

·?Component sockets

·?Backplane connectors

·?Filters

·?Suppressors

·?Sensors

·?Integrated circuits

·?Temperature cut-offs

·?Energy harvesting modules

·?Lamp holders

·?Backlighting components

·?Monitors

·?Clips

·?Power inverters

·?Power regulator

How to Get Quotation for PCB Components Sourcing

Getting a quotation for a PCB component sourcing involves uploading a complete BOM on-line into a contract manufacturer’s website.

You can then request a quotation which can be sent to you in a few hours. The following are the steps involved.

?Prepare a Complete PCB component BOM

A complete?BOM?should have items like PCB Assemblies, with part numbers, name of manufacturer and reference designator.

It also contains quantity, description, case/package, SMT method, footprint, and BOM level.

Below is an illustration of a complete PCB component BOM that you can upload when requesting for a PCB component quotation.

Request for PCB Components Quotation

This involves uploading a complete BOM, preliminary layout materials and schedule requirements into the website of the contract manufacturer.

You can also request the manufacturer to quote for a CAD system, products testing, deliverables, schematics and additional services you need.

Let us look at what a quotation entails in more details.

Lead-time for PCB Components Sourcing

This is the duration required to manufacture a component. It includes order preparation, queue, setup, run, inspection and put-away time.

For products made on an order, it’s the time taken from the release of an order, to production and shipment.

Escalating lead time is one of the emerging trends in Electronic component sourcing. This creates a big challenge for purchasing communities.

There is usually no stability when it comes to lead times.

Escalating lead times is a complicated situation rising due to market demands, investment constraints and capacity allocations in some regions.

Lead-time usually is between 5- 8 working days from the initial day of order. For mass production lead time can take up to 2 weeks.

However, this may differ from one region to the other. For example, Lead times for resistors in North America had moved from 12 to 16 weeks by the beginning of 2017.

Packaging PCB Components

PCB components when packaged well allows for easy handling and assembly onto a circuit board. Good packaging also protects the device from damage.

There are numerous packaging types, some of which have standardized dimensions and tolerances.

These are also registered with some associations of trade industry like JEDES and Pro Electron.

On the other hand, some PCB component packaging types are designed by single manufacturers.

Bare chips, additional packaging or epoxy filling are used to protect the device from moisture.

Components like resistors use JEDES standards. Their resistors use a numerical standard which contains the width and height of the packages.

For example, in the 0603 imperial code, it means the packaging length of 0.060 inches and a width of 0.030 inches.

Aluminum conductors are packaged in reels or coils as they come from stranding machines.

Other companies like PELICAN provide packaging for semiconductors.

They use an automated packaging machine and equipment empowered by their skilled engineers and technicians.

FAQs about PCB Components Sourcing

Probably, you could be having many questions regarding PCB components sourcing.

Well, this section covers some of the most frequently asked questions when it comes to PCB component sourcing.

Figure 10 Components on PCB

Q1. Is there a specific PCB component sourcing lead time?

In most cases, yes.

However, this will depend on many factors such as components you’re sourcing.

For instance, hard to find components will require long lead time.

Again, it will also depend on the company. Companies with experience in the PCB component sourcing will obviously have short lead time even for hard to find components.

Q2. How can I get competitive prices when sourcing PCB components?

It’s simple, source for PCB components from China.

You can count on Chinese companies when it comes to getting competitive prices on PCB components.

Even if they have to get these PCB components from other companies abroad, say Europe, Asia or U.S.A., they have the know-how when it comes to getting better prices.

Besides, most Chinese PCB manufacturers have long-term partnership with most companies. Therefore, competitive prices on PCB components is a guarantee.

Q3. Does difference in solder mask color affect prices?

For small orders, you can pay an extra 20 USD on the upper end. Otherwise, for large quantity, the difference is insignificant.

Q4. What influences the reduction in PCB prices?

This can be achieved by designing your PCB in a simple way as much as possible. For example, without slots, standard specifications for PCB of 2 layers is 0.062 inches, FR4, 1OZ HAL, hole size>15mil, clearance>7mil, square shape.

Q5. Which files can we use in bare PCB fabrication?

You can use the Gerber RS-274X and 274D. Eagle AutoCAD’s DXF and DWG can also be used.

In case the manufacturer uses any unique file formats, they will let you know.

Q6. What is the best format for BOM list?

The format entails component part numbers, manufacturer, quantity, value information which are documented in MS-excel sheet.

You can look at this example by RayPCB:

Q7. What makes a PCB component sourcing quotation?

Some of the key things you should include are board assembly quantity, complete BOM, special assembly notes, bare PCBs if requested, a set of Gerber file with drilled data and any additional electrical data.

Q8. What is the MOQ for PCB component sourcing?

Most suppliers can supply both small and large quantity order units. Others can only handle small quantity orders.

Q9. Do manufacturers test PCBA before shipping?

All PCBA are tested according to your instructions and quality standards specifications. The contracted manufacturer does visual inspection, short and open circuit tests and functional testing, among other procedures.

Q10. How long will quotation take after sending BOM for PCB components?

After sending your BOM and design document online to a contract manufacturer, you should receive a quotation within duration of between 2-24 hours.

Most companies work 24/7 so it should be within that time frame.

Hopefully, these covers most concerns I receive when handling most PCB components sourcing projects.

In case you have any question,?feel free to ask.

Conclusion

PCB component sourcing is very critical and should be done through experienced suppliers, distributors, and manufacturers.

It requires worldwide networking and link to experts who can help you get the best in the market.

Experienced suppliers can identify counterfeits and provide other services which are relevant during component sourcing like product testing.

Therefore, PCB component sourcing should be treated with a lot of care because its success determines final product quality.

Still having problems with PCB components sourcing,?talk to us today.