PCB Assembly Costs Explained: Where Your Money Actually Goes

Published June 10, 2026 · By Mayio Engineering Team · 6 min read

Getting a PCB quote back and wondering why it costs what it costs? Here's exactly where your money goes when you order PCB assembly — and where you can save.

The Cost Breakdown

A PCB assembly quote has four main components:

Component	What You Pay For	Typical Cost
PCB Fabrication	Board material + copper etching + solder mask + silkscreen	$2-50 (depending on specs)
Components	Resistors, capacitors, ICs, connectors, etc.	Varies by BOM
Assembly Labor	SMT placement + soldering + inspection	$0.01-0.05/part
Stencil	Steel stencil for solder paste	$10-25 (often included)

What Drives Component Costs Up

Rare or specialty parts — Custom ASICs, FPGA, sensors
Supply chain issues — Shortage = price spike
Small quantity pricing — Buying 10 ICs costs more per unit than 1000
Multi-source — Same part from Digi-Key vs LCSC can vary 30%

How to Reduce Assembly Costs

Use common components — 0402/0603 resistors, standard caps, SOIC packages
Order more boards — Fixed costs spread across more units
Use a component supplier with good pricing — We source from LCSC, Digi-Key, Mouser
Optimize your BOM — Fewer unique parts = cheaper assembly
Skip unnecessary conformal coating — Only coat what needs protection

Real Example: IoT Sensor Board (50pcs)

4-layer PCB (40×30mm): $0.55/board
45 components (all common 0402/0603/SOIC): $1.80/board
SMT assembly: $0.45/board
Stencil + testing: $0.30/board
Total: ~$3.10/board
With DDP shipping: ~$3.50/board

Real Example: Raspberry Pi HAT (10pcs)

4-layer PCB (65×56mm): $1.20/board
62 components (mixed packages): $4.50/board
SMT assembly: $0.62/board
Stencil + testing: $0.50/board
Total: ~$6.82/board

Free Things You Shouldn't Pay For

Item	What to Expect
DFM Review	Should always be free
Stencil	Most manufacturers include it
Setup Fee	Should NOT exist for standard boards
Re-spin Fee	Charged by some for DFM corrections
Test Report	Basic AOI report should be included

Bottom line: Assembly cost is driven by component count and board complexity. The best way to save is to use common parts, order in reasonable quantities, and choose a manufacturer that doesn't charge hidden fees.

Get Your Assembly Quote

Send your Gerber files + BOM + pick-and-place file for a free, itemized quote. We'll break down every cost so you know exactly where your money goes.

💬 Send Files for Free Quote