4 layers42 × 55 mm
Ethernet W5500-Magjack
AnotherMike-exe/KiCadBlocks
Reusable KiCad 10 PCB layout blocks: module reference boards, design block fragments and host setup docs
37 partsMIT
4 layers1 × 55.8 mm
BlockBuilder
AnotherMike-exe/KiCadBlocksReusable KiCad 10 PCB layout blocks: module reference boards, design block fragments and host setup docs
- Size
- 1 × 55.8 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 82
- Nets
- 81
- Pads
- 260
- Tracks, vias
- 415, 147
- Pours
- 7
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 25 Sep 2026
- Updated
- 25 Sep 2026
Overview
BlockBuilder is an open-source printed circuit board by AnotherMike-exe, from the AnotherMike-exe/KiCadBlocks repository on GitHub, published under the MIT licence. It is a 4-layer board of 1 × 55.8 mm with 82 parts on 81 nets, routed with 415 tracks and 147 vias.
It is built around the SI3402-B-GMR, ARJM11C7-114-BA-EW2 and TLV431BCDBZR, with the VO618A-3X017T, W5500 and RC0603JR-070RL among its other parts. Its parts include 39 capacitors, 24 resistors, 4 ICs, 3 diodes and 1 connector.
Main components
12
SI3402-B-GMR
QFN-20-EP(5x5)-40℃~+85℃ 1.2W 10BASE-T、100BASE-TX、1000BASE-T 10Mbit/s、100Mbit/s、1Gbit/s 37V~57V QFN-20-EP(5x5) Ethernet Transceivers ROHSSilicon LabsEthernet TransceiversARJM11C7-114-BA-EW2
插件-40℃~+85℃ 100Mbps Power over Ethernet module (PoE) Plugin Ethernet Connectors / Modular Connectors (RJ45 RJ11) ROHSAbraconEthernet Connectors / Modular Connectors (RJ45 RJ11)
TLV431BCDBZR
SOT-23-40℃~+125℃ 1.24V~6V 1.24V~6V 100uA 15mA Adjustable Parallel ±0.5% SOT-23 Voltage Reference ROHSTexas InstrumentsVoltage Reference
VO618A-3X017T
SMD-4P-55℃~+110℃ 1 1.1V 100% 14us 200% 250mV@2.5mA,1mA 2us 5.3kV 50mA 60mA 6V 80V DC Phototransistor SMD-4P Transistor, Photovoltaic Output Optoisolators ROHSVishay IntertechnologyTransistor, Photovoltaic Output Optoisolators
W5500
LQFP-48_7x7-40℃~+85℃ 10BASE-T、100BASE-TX 3.3V 32KB SPI SPI Wake-up function、Programmable LED indication、Low-power mode Yes LQFP-48(7x7) Ethernet Controllers ROHSWIZNETEthernet Controllers
RC0603JR-070RL
UncategorisedUnknown makerRC0603FR-0749R9L
UncategorisedUnknown maker
CL32B105KCJNNNE
1210100V 1uF X7R ±10% 1210 Multilayer Ceramic Capacitors MLCC - SMD/SMT ROHSSamsung Electro-MechanicsMultilayer Ceramic Capacitors MLCC - SMD/SMT
CL21B106KAYQNNE
080510uF 25V X7R ±10% 0805 Multilayer Ceramic Capacitors MLCC - SMD/SMT ROHSSamsung Electro-MechanicsMultilayer Ceramic Capacitors MLCC - SMD/SMT
VY2102M29Y5US63V0
插件,P=10mm-40℃~+125℃ 1nF 440V X1,Y2 ±20% Plugin,P=10mm Safety Capacitors ROHSVishay IntertechnologySafety CapacitorsRC0603FR-07330RL
UncategorisedUnknown maker
CC0603KRX7R9BB682
060350V 6.8nF X7R ±10% 0603 Multilayer Ceramic Capacitors MLCC - SMD/SMT ROHSYAGEOMultilayer Ceramic Capacitors MLCC - SMD/SMT
README
README.mdPlum KiCAD Blocks
Reusable PCB layout blocks for Plum Solutions boards. Nine schematic design blocks exist. Each one gets a matching layout so a host project can drop in the parts, the routing and the copper pours already proven on a reference board.
What a block ships as
| Artefact | Where | Role |
|---|---|---|
| Reference board | Modules/<Block>/ | the worked example, and the test bed |
| Design block fragment | PlumBlocks.kicad_blocks/<Block>.kicad_block/ | the droppable asset |
| Host setup document | Modules/<Block>/docs/Host-Setup.md | the stackup, net classes and rules a fragment cannot carry |
The fragment lives outside this repository, in the shared library on the Plum
volume. See docs/ARCHITECTURE.md.
Status
| Block | Schematic | Layout | Fragment |
|---|---|---|---|
PoE-Ethernet-Si3402-W5500 | done | done | done, placement tested |
Ethernet-W5500-Magjack | done | not started | — |
RF-CC1101-433 | done | not started | — |
MCU-ESP32S3-MINI | done | not started | — |
PowerMux-TPS2121 | done | not started | — |
Buck-5V-3V3-TPS563208 | done | not started | — |
LDO-RF-3V3-AP2112K | done | not started | — |
USBC-Device-ESD | done | not started | — |
LED-Status-x3 | done | not started | — |
PoE-PD-Si3402-Class1 is retired. PoE always arrives on an Ethernet cable, so a
PoE block with no jack was never a drop-in part.
Start here
docs/ARCHITECTURE.md— how the repository fits togetherdocs/CONTEXT.md— the domain words this project usesdocs/Design-Blocks-Runbook.md— how a block is built and what breaksModules/PoE-Ethernet-Si3402-W5500/docs/Layout-Spec.md— the worked example
Requirements
KiCad 10.0.6 or later. The Plum volume must be mounted, because the design block library and the shared footprints live on it.
Parts
82| Qty | Value | Footprint | References |
|---|---|---|---|
| 8 | 100nF | Capacitor_SMD:C_0603_1608Metric | C10, C12, C17, C18, C20, C21, C22, C31 |
| 8 | 1nF 100V | Capacitor_SMD:C_0603_1608Metric | C1, C2, C5, C6, C8, C9, C13, C14 |
| 7 | 0R | Resistor_SMD:R_0603_1608Metric | R5, R7, R8, R9, R10, R12, R23 |
| 4 | 330R@100MHz | Inductor_SMD:L_0603_1608Metric | FB1, FB2, FB3, FB4 |
| 4 | 49R9 1% | Resistor_SMD:R_0603_1608Metric | R13, R14, R15, R16 |
| 3 | 1uF 100V | Capacitor_SMD:C_1210_3225Metric | C7, C11, C16 |
| 2 | 10nF | Capacitor_SMD:C_0603_1608Metric | C28, C33 |
| 2 | 10uF 16V | Capacitor_SMD:C_0805_2012Metric | C23, C34 |
| 2 | 18pF NP0 | Capacitor_SMD:C_0603_1608Metric | C4, C15 |
| 2 | 1nF Y2 300VAC | Capacitor_THT:C_Disc_D10.5mm_W5.0mm_P10.00mm | C29, C30 |
| 2 | 330R | Resistor_SMD:R_0603_1608Metric | R19, R20 |
| 2 | 6.8nF | Capacitor_SMD:C_0603_1608Metric | C25, C26 |
| 1 | 1000uF 10V | Capacitor_SMD:CP_Elec_10x10.5 | C38 |
| 1 | 100nF 100V X7R | Capacitor_SMD:C_1206_3216Metric | C19 |
| 1 | 100uF 16V X5R | Capacitor_SMD:C_1210_3225Metric | C37 |
| 1 | 10R | Resistor_SMD:R_0603_1608Metric | R24 |
| 1 | 10R 1% | Resistor_SMD:R_0603_1608Metric | R17 |
| 1 | 12.1k 1% | Resistor_SMD:R_0603_1608Metric | R22 |
| 1 | 12.4k 1% | Resistor_SMD:R_0603_1608Metric | R11 |
| 1 | 120R@100MHz | Inductor_SMD:L_0603_1608Metric | FB5 |
| 1 | 140R 1% | Resistor_SMD:R_0603_1608Metric | R4 |
| 1 | 15nF | Capacitor_SMD:C_0603_1608Metric | C24 |
| 1 | 1M | Resistor_SMD:R_0603_1608Metric | R1 |
| 1 | 1N4148W | Diode_SMD:D_SOD-123 | D1 |
| 1 | 1nF 2kV | Capacitor_SMD:C_1808_4520Metric | C39 |
| 1 | 1uH | PoEEthModule:L_Coilcraft_XAL6030 | L1 |
| 1 | 2.05k | Resistor_SMD:R_0603_1608Metric | R18 |
| 1 | 22nF | Capacitor_SMD:C_0603_1608Metric | C32 |
| 1 | 24.3k 1% | Resistor_SMD:R_0603_1608Metric | R3 |
| 1 | 25.000MHz CL=12pF | Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm | Y1 |
| 1 | 3.3nF | Capacitor_SMD:C_0603_1608Metric | C35 |
| 1 | 33uF 100V | Capacitor_SMD:CP_Elec_10x10.5 | C3 |
| 1 | 36.5k 1% | Resistor_SMD:R_0603_1608Metric | R21 |
| 1 | 4.7k | Resistor_SMD:R_0603_1608Metric | R2 |
| 1 | 4.7uF | Capacitor_SMD:C_0805_2012Metric | C27 |
| 1 | 4.99k | Resistor_SMD:R_0603_1608Metric | R6 |
| 1 | 470pF 100V C0G | Capacitor_SMD:C_0603_1608Metric | C36 |
| 1 | ARJM11C7-114-BA-EW2 | PoEEthModule:RJ45_Abracon_ARJM11C7-114-BA-EW2 | J1 |
| 1 | DFLT30A-7 | Diode_SMD:D_PowerDI-123 | D2 |
| 1 | EROUT | TestPoint:TestPoint_Pad_D1.0mm | TP1 |
| 1 | FA2924-AL | PoEEthModule:Transformer_Coilcraft_FA2924-AL | T1 |
| 1 | PDS1040-13 | Diode_SMD:D_PowerDI-5 | D3 |
| 1 | SWO | TestPoint:TestPoint_Pad_D1.0mm | TP2 |
| 1 | Si3402-B-GMR | PoEEthModule:QFN-20-1EP_5x5mm_P0.8mm_EP2.75x2.75mm_Si3402-B | U2 |
| 1 | TLV431BCDBZR | Package_TO_SOT_SMD:SOT-23 | U4 |
| 1 | VO618A-3X017T | Package_DIP:SMDIP-4_W9.53mm_Clearance8mm | U3 |
| 1 | VOUT_RAW | TestPoint:TestPoint_Pad_D1.0mm | TP3 |
| 1 | W5500 | Package_QFP:LQFP-48_7x7mm_P0.5mm | U1 |
Questions
How big is the BlockBuilder PCB?
It measures 1 × 55.8 mm and has 4 copper layers, 1.6 mm thick.
What parts does the BlockBuilder use?
82 parts, built around the SI3402-B-GMR, ARJM11C7-114-BA-EW2, TLV431BCDBZR and VO618A-3X017T. 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 BlockBuilder KiCad files?
From the AnotherMike-exe/KiCadBlocks repository on GitHub, at the commit this page was made from: the board is BlockBuilder/BlockBuilder.kicad_pcb and its schematic BlockBuilder/BlockBuilder.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the BlockBuilder design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
More from AnotherMike-exe/KiCadBlocks
8- 4 layers25 × 30 mm
RF CC1101-433
AnotherMike-exe/KiCadBlocks
Reusable KiCad 10 PCB layout blocks: module reference boards, design block fragments and host setup docs
25 partsMIT - 4 layers15 × 20 mm
PowerMux TPS2121
AnotherMike-exe/KiCadBlocks
Reusable KiCad 10 PCB layout blocks: module reference boards, design block fragments and host setup docs
14 partsMIT - 4 layers18 × 20 mm
Buck-5V-3V3-TPS563208
AnotherMike-exe/KiCadBlocks
Reusable KiCad 10 PCB layout blocks: module reference boards, design block fragments and host setup docs
13 partsMIT - 4 layers27 × 24 mm
MCU ESP32S3-MINI
AnotherMike-exe/KiCadBlocks
Reusable KiCad 10 PCB layout blocks: module reference boards, design block fragments and host setup docs
11 partsMIT - 4 layers14 × 11 mm
LED Status x3
AnotherMike-exe/KiCadBlocks
Reusable KiCad 10 PCB layout blocks: module reference boards, design block fragments and host setup docs
6 partsMIT - 4 layers20 × 21 mm
USBC Device ESD
AnotherMike-exe/KiCadBlocks
Reusable KiCad 10 PCB layout blocks: module reference boards, design block fragments and host setup docs
4 partsMIT - 4 layers10 × 12 mm
LDO RF-3V3-AP2112K
AnotherMike-exe/KiCadBlocks
Reusable KiCad 10 PCB layout blocks: module reference boards, design block fragments and host setup docs
3 partsMIT
Similar boards
- 4 layers85 × 50 mm
- 4 layers100 × 100 mm
DMXion 4port node
NEOgHacking/DMXion_4Port_Node
A 4 port dmx node with rdm funtionallity. Connects via ARTNET or sACN
275 parts2GPL-3.0 - 4 layers
DA37 power C
Fairank/WhisperTorch
声束手电 · A directional-audio engineering prototype with editable KiCad PCBs, a serviceable 3D-printable enclosure and ESP32/Pico firmware. Source-available for noncommercial use; range targets remain unverified.
83 parts - 4 layers106 × 100 mm
POE POWER
ssmo-oss/UMI-Power-distribution
Three separate boards distribute a 12 V supply to the UMI system. D6 is the current prototype revision. It has not been physically qualified or approved for production.
60 parts - 2 layers109 × 126.4 mm
RheoBoard v1.05
The-Hybrid-Atelier/RheoBoard
RheoBoard is open hardware for pneumatic retraction-extrusion measurements.
162 parts - 2 layers42 × 54 mm
Click counter Q4
dudgeon/count-fidget
A lightweight, rechargeable two-key fidget that counts clicks, resets with a second key, and remembers its count while asleep or unpowered. Designed for a home-printed enclosure and professionally assembled electronics.
86 parts - 4 layers125 × 70 mm
1000base t1-converter
TLDSJPWORK/1000base-t1-converter
学習用 1000BASE-T1 ↔ 1000BASE-T メディアコンバーター
184 partsCC-BY-4.0 - 6 layers100 × 70 mm
LB-100
avlyubimov/svc-platform
Status: EVT-LAYOUT-AUTHORIZED; connectivity routing complete; fab review open
112 parts1