How to Choose the Right PCB Thickness?

Choosing PCB thickness isn't just about aesthetics. If you're stuck between 1.0mm and 1.6mm, ask yourself these 4 questions:

1. Mechanical Strength: Will it carry heavy transformers or heat sinks? (Go thicker >1.6mm)

2. Housing Space: Is your enclosure ultra-slim? (Go thinner <0.8mm)

3. Signal Type: High-power traces need thicker copper, which adds to the total board thickness.

4. Cost & Lead Time: Standard thicknesses (like 1.6mm) are usually the fastest and cheapest to produce.

JLC Capability: Thickness for FR4 are: 0.4/0.6/0.8/1.0/1.2/1.6/2.0 mm (2.5 mm and above are for 12+ layer PCBs only)

Read the full breakdown on our blog: https://jlcpcb.com/blog/how-to-choose-the-thickness-of-pcb