2 layers44.7 × 29.6 mm SlimC8051, the printed circuit board in 3D

SlimC8051

Generic PCBs for different controllers

Size: 44.7 × 29.6 mm
Copper layers: 2
Thickness: 1.6 mm
Parts: 84
Nets: 26
Pads: 323
Tracks, vias: 676, 84
Pours: 10
Routed: Yes
KiCad: KiCad 5 (file 20171130)
Created: 21 Sep 2025
Updated: 21 Sep 2025

Overview

SlimC8051 is an open-source printed circuit board by nppc, from the nppc/DevBoards repository on GitHub. It is a 2-layer board of 44.7 × 29.6 mm with 84 parts on 26 nets, routed with 676 tracks and 84 vias.

It is built around the AP62200WU and TX 1. Its parts include 30 capacitors, 20 resistors, 18 connectors, 9 ICs and 3 inductors. It belongs with the Silicon Labs (EFR32, EFM) boards of this library.

Main components

Parts

Qty	Value	Footprint	References
9	100n	Capacitors_SMD:C_0603	C4, C4, C4, C6, C6, C8, C10, C10, C10
7	100	Resistors_SMD:R_0603	R1, R2, R5, R6, R7, R8, R9
6	22uF	Capacitors_SMD:C_1206	C11, C11, C11, C12, C12, C12
6	2uf	Capacitors_SMD:C_0603	C1, C1, C1, C2, C2, C2
4	10k	Resistors_SMD:R_0603	R1, R1, R3, R3
4	4.7uf	Capacitors_SMD:C_0603	C3, C5, C5, C7
3	10K	Resistors_SMD:R_0603	R3, R3, R3
3	10uF	Capacitors_SMD:C_1206	C9, C9, C9
3	4u7	KiCadCustomLibs:XFL2006-inductor	L1, L1, L1
3	AP62200	KiCadCustomLibs:SOT-563	U3, U3, U3
3	C2	Connectors_Molex:Molex_PicoBlade_53047-0410_04x1.25mm_Straight	J6, J6, J6
3	MIC550X-DFN	Housings_DFN_QFN:UDFN-4_1x1mm_Pitch0.65mm	U1, U1, U1
2	1uf	Capacitors_SMD:C_0603	C3, C3
2	36K	Resistors_SMD:R_0603	R2, R2
2	810	Resistors_SMD:R_0603	R10, R11
2	C	Pin_Headers:Pin_Header_Angled_1x03_Pitch2.54mm	J1, J1
2	Conn_01x08	Pin_Headers:Pin_Header_Straight_1x08_Pitch2.54mm	J1, J2
2	EFM8BB51_20pin	KiCadCustomLibs:QFN20_small	U2, U2
2	LED	LEDs:LED_0603	D1, D2
1	12V	Pin_Headers:Pin_Header_Straight_1x01_Pitch2.54mm	J1
1	47K	Resistors_SMD:R_0603	R4
1	52.3K	Resistors_SMD:R_0603	R2
1	C8051F5x-QSOP20	Housings_SSOP:TSSOP-20_4.4x6.5mm_Pitch0.65mm	U2
1	Conn_01x02	Pin_Headers:Pin_Header_Straight_1x02_Pitch2.54mm	J3
1	Conn_02x10_Counter_Clockwise	Housings_SSOP:TSSOP-20_4.4x6.5mm_Pitch0.65mm	J4
1	DOM	Pin_Headers:Pin_Header_Straight_1x04_Pitch2.00mm	J3
1	G	Pin_Headers:Pin_Header_Straight_1x01_Pitch2.54mm	J2
1	GPS	Connectors_Molex:Molex_PicoBlade_53047-0410_04x1.25mm_Straight	J1
1	Jumper_NC_Small	KiCadCustomLibs:Jumper_micro	JP1
1	Main	Connectors_Molex:Molex_PicoBlade_53047-0410_04x1.25mm_Straight	J2
1	SEC	KiCadCustomLibs:USB_PADS_Breakout	J4
1	TX1	Connectors_Molex:Molex_PicoBlade_53047-0210_02x1.25mm_Straight	J3
1	TX2	Connectors_Molex:Molex_PicoBlade_53047-0210_02x1.25mm_Straight	J4
1	TX3	Connectors_Molex:Molex_PicoBlade_53047-0210_02x1.25mm_Straight	J5
1	V_GPS	Jumper:SolderJumper-3_P1.3mm_Open_RoundedPad1.0x1.5mm_NumberLabels	JP1

Questions

How big is the SlimC8051 PCB?

It measures 44.7 × 29.6 mm and has 2 copper layers, 1.6 mm thick.

What parts does the SlimC8051 use?

84 parts, built around the AP62200WU and TX 1. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.

Where can I download the SlimC8051 KiCad files?

From the nppc/DevBoards repository on GitHub, at the commit this page was made from: the board is Silabs/SiLabsDevBoards/SlimC8051/SlimC8051.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.

Can I use the SlimC8051 design in my own project?

Its repository states no licence, so its author keeps all rights: ask nppc before reusing the design.

Category and platform

Silicon Labs (EFR32, EFM)

Project files

Show this board on your page

A live frame, for any web page

<iframe src="https://pcbkit.io/embed/boards/nppc-devboards-slimc8051" title="SlimC8051 in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe>

A picture

<img src="https://pcbkit.io/embed/boards/nppc-devboards-slimc8051.jpg" alt="SlimC8051" width="1200" height="900">

A picture that opens the board, for a README

[![SlimC8051](https://pcbkit.io/embed/boards/nppc-devboards-slimc8051.jpg?size=s)](https://pcbkit.io/boards/nppc-devboards-slimc8051)

Source

Repository: nppc/DevBoards
Board file: Silabs/SiLabsDevBoards/SlimC8051/SlimC8051.kicad_pcb
Commit: 096e7bb
Licence: Not stated

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