PCB Assembly Calculator

Printed circuit boards (PCBs) are an integral part of electronics. They appear as small green chips with copper traces and lines. These printed circuit boards feature several delicate components and parts, which are assembled through a series of manual and automated steps. This entire process is referred to as a printed circuit board assembly. Being one of the leading PCB assembly services in the US, Twisted Traces have been helping clients materialize their complex designs into working prototypes. What is the typical cost of a PCB assembly? Are there any hidden charges? The team at Twisted Traces admits that these are a few questions asked by their customers. The PCB assembly calculator provided on the website helps them understand the cost-incurring factors and make appropriate choices wherever needed.

Features of PCB Assembly Calculator

The following are important features of a PCB assembly cost calculator offered by Twisted Traces.

  • Assembly Part Number: This field is mandatory, as it helps our team identify the project easily.
  • Assembly Service Order Type: Twisted Traces requires customers to choose from any of the following service order types:
    • Kitted or Consigned: In this type, the customer sends boards and all required parts in a single kit or box.
    • Combo: In this type, the customer supplies a few parts, whereas Twisted Traces sources the rest of the parts.
  • Boards Quantity to be assembled: This refers to the number of boards to be assembled. The PCB assembly cost calculator provides you the cost for boards in the range of 1–100; however, for quantities from 101 to 50,000, you need to request a quote.
  • Unique SMT Parts: This is the total number of unique SMT part numbers in your bill of material (BOM). These parts are surface mounted on the board. The value of unique SMT parts must be less than or equal to the sum of SMT placements, fine pitch, QFN/BGA/leadless placement counts.
  • SMT Placements: This refers to the number of SMT placements on each board. It excludes any type of fine pitch, BGA/QFN/Leadless placements. You can enter values between 0 and 10000. You can request a quote for any placement values from 10,001 to 50,000.
  • Fine Pitch Placements: These are the total number of fine pitched parts on every board. A part is treated as a fine pitch if the distance between the pin and the center is 50 mil or 1.27 mm or less than that. You can enter any value between 0 and 50 for receiving a quick calculation. However, you need to request a quote for values from 51 to 500 mils.
  • BGA/QFN/Leadless Placements: These are the three types of placements provided by us:
    • Ball Grid Arrays: It is a chip carrier, which is widely used for integrated circuits. These packages provide more interconnection pins than flat lead packages.
    • Quad Flat No-Leads Package (QFN): Integrated circuits are connected to the printed circuit board using QFNs. These packages help reduce lead inductance, footprint, and weight of the printed circuit board. Advantages offered by this package makes it ideal for applications that demand excellent electrical and thermal performance, and requires reduced size and weight.
    • Leadless Placements: We provide leadless chip carriers. You can enter values from 0 to 10 for each of these options given. Request a quote for values from 11 to 99.
  • Unique Through-hole Parts: This is the total number of through-hole parts on the circuit board. These parts must be less than or equal to the number of through-hole placements. You can enter any value between 0 and 50 here. You can request a quote for values from 51 to 200.
  • Through-hole Placements: These are the number of through-hole parts on each board.
  • Board Types: We provide two board types – single pieces and panelized PCBs. You can choose from either of these, and if you do not choose any option then the single side will be the default option.
  • Assembly Sides: This suggests the number of surface mount components on each side of the circuit board. We can provide single-side and double-side assembly. If you do not make a choice, then we may consider single-side assembly by default.
  • Lead-free RoHS: RoHS is a lead-free directive, which prohibits the use of several substances including Lead (Pb), Mercury (Hg), Cadmium (Cd), Hexavalent chromium (Cr6+), Polybrominated biphenyls (PBB), Polybrominated diphenyl ether (PBDE), and so on. Do you need lead-free processing? We can build your assembly with fully RoHS-compliant processes and materials. If you do not choose Yes or No then we may consider No as the default value.
  • Assembly Service Lead Time: The lead time will start after receiving all parts from supplier or customer w.r.t turnkey, combo, or kitted-consigned. We can provide PCB assemblies in 7 days, 5 days, 3 days, and 2 days, as per the customer requirements.
  • Detailed Information of Assembly: The PCB assembly cost calculator addresses all important assembly features. Do you have any specific requirements that are not addressed here? Please fill other technical information pertaining to the PCB assembly. This will help us understand your requirements effectively.

With a vast experience to their credit, the team at Twisted Traces have helped clients across different industries in making appropriate choices. If you want to discuss on the features of the PCB assembly cost calculator or PCB fabrication, you can get in touch with the team today.


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