# JLCPCB 90ohm Impedance Spacing Tool - 4 layer 3313 (Component)
## Description
Use this spacing tool to set the spacing between your traces for a 90 ohm differential pair
- Use "JLC3313" 4 layer stackup
- Route on Top with L2 reference or Bottom with L3 reference
- Trace width of both traces should be 200um
## Component Details
- **Owner:** chaykak2
- **Created:** 11/8/2022
- **Last Updated:** 11/8/2022
- **Visibility:** Public
- **Used in:** 7 projects
- **Mount Type:** PCB
- **Package / Case Code:** TO
- **Pin Count:** 1
## Pins
| Pin | Name | Type |
|-----|------|------|
| - | P1 | |
---
*Generated from [https://www.flux.ai/chaykak2/jlcpcb-90ohm-impedance-spacing-tool-4-layer-3313](https://www.flux.ai/chaykak2/jlcpcb-90ohm-impedance-spacing-tool-4-layer-3313)*