home > blog > Complete Guide of BOM Electronic Components Purchase [2021 Updated]

Complete Guide of BOM Electronic Components Purchase [2021 Updated]

Star level: icon_staricon_staricon_staricon_staricon_star

Thur, Oct 28, 2021

BOM electronic components

How to buy electronic components? Directly go to a local electronic components store for spot purchase, or go online to an electronic component website to choose the components? It is okay to spot purchase only one or a few models of electronic components in small quantities. But if you are buying electronic components for PCB assembly or electronics manufacturing, you need to make a bill of materials (BOM) and purchase BOM electronic components.

BOM electronic components purchase means buying electronic components by sending a BOM to an electronic components distributor. According to the BOM, a quotation engineer gives a quote to the buyer. When the buyer confirms the order, the electronic component distributor sources, tests, and sends all the required components to the buyer.

What is a BOM?

A BOM is a datasheet of all the electronic components that you want to buy. The forms of BOMs are different and numerous, but all BOMs should contain the component quantity, reference, description, PN (part number), description, manufacturer.

Component quantity: the number of the same electronic component for a PCB board

Reference: the silkscreen code or symbol on the PCB board surface

Description: the features of the components, including the resistance/capacitance/inductance/voltage value, tolerance, packaging. For example, CAP 1μF 25V 0402 X5R 10pc.

PN: part number, the unique code for identification made by the component manufacturer. It can be a number series or a combination of numbers and letters. (But if you don't know the PN of the component, let it go.)

Manufacturer: the specific component manufacturer that makes the PN

A clear and comprehensive BOM enables the electronic component distributor to easily understand the customer's needs and shorten the delivery time. The editor here appeals to electronic component buyers to send such a BOM to the B2B electronic component distributor PCBONLINE at info@pcbonline.com:

Component
Names
MPN
Value
Voltage
Quantity
Tol Quantity
CAP0402
C17
10pF
50V
1
10
CAP0402
C77
4.7nF
50V
1
10
CAP0402
C83
220nF
50V
1
10
CAP0603
C16
1μF
25V
1
10
CON_47219-2001
J1
47219-2001
1
10
CON_LEMO_30P
J2
HES.3M.330.XLDP
1
10
IC_LTC1799CS5#TRMPBF
U10
LTC1799CS5#TRMPBF
1
10
IC_LTC2950ITS8-2#TRMPBF
U5
LTC2950ITS8-2#TRMPBF
1
10
IC_LTC4053EMSE-4.2#PBF
U8
LTC4053EMSE-4.2#PBF
1
10
LED0402
LED1
Red
1
10
LED0402
LED2
Green
1
10
MCU_ATSAME70Q21A-CN
U1
ATSAME70Q21A-CN
1
10
OPAMP_OPA548FKTWT
U12
OPA548FKTWT
60V
1
10
RES0402
R6
5.62K
1
10
RES0402
R26
402K
1
10
RES0402
R31
2.8K
1
10
RES0402
R40
39R
1
10
RES0402
R88
100R
1
10
TVS_MSP5.0A-M3/89A
D1
MSP5.0A-M3-89A
5V
1
10
CAP0402
C27, C28
12pF
50V
2
20
CAP0402
C33, C35
33nF
50V
2
20
CAP0402
C87, C88, C97
22nF
50V
3
30
L0402
L1, L2, L3
L0402C2N4SRMST
2.4nH
3
30
Sub-total:
29
290

BOM Electronic Component Distributor PCBONLINE

PCBONLINE is a B2B electronic component distributor as well as a one-stop advanced PCB manufacturer in China. We have components procurement points around the world and source BOM electronic components to customers around the globe.

BOM electronic component sourcing

Why purchase BOM electronic components from PCBONLINE:

  • PCBONLINE has components original factory's direct limited supply and bargaining power.
  • Free sourcing services, BOM electronic components at possibly the lowest costs in the market.
  • Accurate BOM electronic components quote in half an hour.
  • Millions of orderable electronic components, including passive/active components, custom components, military-grade components.
  • No refurbished parts. Free IC counterfeit detection. Traceable BOM electronic components.
  • We have basic components and a small amount of discontinued electronic components in our warehouse.

Send your BOM to PCBONLINE to purchase all electronic components now. Quotations and suggestions are free and quick!

Advantages of BOM Electronic Components Purchase

It won't take much time of you to make a BOM, and you will enjoy these advantages of BOM electronic components purchase:

  • Fast and accurate quote of electronic components of various part numbers in any quantity.
  • Time-saving thanks to the simplified back-and-forth with only one electronic component distributor.
  • Easy for the PCB assembly manufacturer PCBONLINE to design for manufacturing and test.
  • Cost-saving because all components are bought in one source, and you don't have to hire components purchasing specialists in your company.

How do I Know the BOM Electronic Components Quality?

tracking BOM electronic components quality

BOM electronic components are traceable, and you can track the original manufacturer and sourcing channel to make sure of the quality. Besides, PCBONLLINE prints the digital code on every tray or bag of components, and when you scan the code, you can see all details. In addition, you can log into your PCBONLINE account to track the entire process of your order online.

Conclusion

BOM electronic components purchase is cost and time-saving, and it enables the PCBA manufacturer to check your project and design for manufacturing and test. All you need to do is to make a clear BOM and send it to a reliable B2B electronic component distributor PCBONLINE, and then wait for just a short period to receive your electronic components with incredible cost-effectiveness.