# [2-layer] JLCPCB Constraints
## Description
Use this template if you're planning to get your 1 to 2-layer board manufactured in JLCPCB. It has the via min/max and trace width constraints already baked as global rules. #project-template #template #manufacturer-design-rules
## Project Details
- **Owner:** kdudn
- **Created:** 2/9/2025
- **Last Updated:** 2/9/2025
- **Visibility:** Public
## Key Components
### BT1 — [Battery Holder 1 Cell DIP AA](https://www.flux.ai/vasyl/battery-holder-1-cell-dip-aa~gak.md)
- Manufacturer Name: Keystone Electronics
- Datasheet URL: https://www.keyelco.com/userAssets/file/M65p28.pdf
- Voltage: 1.5V
- Part Type: Battery Holder
- License: https://creativecommons.org/licenses/by/4.0/
- Manufacturer Part Number: 2460
**Pins:**
- NEGATIVE [pin N]
- POSITIVE [pin P]
### D1 — [LED](https://www.flux.ai/jharwinbarrozo/led-tht~gr.md)
- Forward Voltage: 1.70
- Emission Coefficient: 3.73
- Series Resistance: 0.42Ω
- Breakdown Voltage: 0V
- Saturation Current: 93.2e-12A
**Pins:**
- A [pin 2]
- K [pin 1]
### SW1 — [Push Button](https://www.flux.ai/jharwinbarrozo/push-button~eqk.md)
- Datasheet URL: https://datasheet.lcsc.com/lcsc/1809271215_Omron-Electronics-B3FS-1050P_C231326.pdf
- Manufacturer Part Number: B3FS-1050P
- Manufacturer Name: OMRON
- Part Type: Switch
**Pins:**
- P1 [pin 1]
- P2 [pin 3]
*The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/kdudn/2-layer-jlcpcb-constraints~31](https://www.flux.ai/kdudn/2-layer-jlcpcb-constraints~31).*
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*Generated from [https://www.flux.ai/kdudn/2-layer-jlcpcb-constraints~31](https://www.flux.ai/kdudn/2-layer-jlcpcb-constraints~31)*