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Midplate

sfunderbots·Electrical·MidPlate/midplate.kicad_pcb

Midplate PCB layout, top view — open source board by sfunderbots

About the Midplate PCB

Midplate is an open source PCB design by sfunderbots, published on GitHub. It is a 4-layer board measuring 174 × 147 mm, with 40 components from 33 distinct parts.

Other key parts include the LMR23630AFDDAR. By type, the board carries 8 connectors, 7 resistors, 6 capacitors, 2 transistors, 1 IC and 1 fuse.

From the project

PCB etc.

This board is a power distribution board, including battery input, reverse polarity protection, power pillars for the chicker board, and a power switch to control power. The board is designed in KiCad, available on this project repository.

This version is from 2024, published in 2026. The midplate had one failure in the past where a threaded SMT insert had failed due to over-torque, but has only had one such occurrence.

Main components on the Midplate

LMR23630AFDDAR

Midplate bill of materials (BOM)

40 components, 33 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
LMR23630AFDDAR
U1
2
MCU60P04-TP
Q1, Q2
2
XT60
J1, J2
1
BM03B-GHS-TBT
JST_BM03B-GHS-TBT
JST Sales America Inc.
J3
2
2-1445053-2
TE_2-1445053-2_2PIN
Molex
J4, J5
1
1586842-6
J7
1
B4B-XH-A(LF)(SN)
JST_B4B-XH-A
JST Sales America Inc.
J12
1
BM04B-GHS-TBT
JST_BM04B-GHS-TBT
JST Sales America Inc.
J13
1
0501015.WR1
Littelfuse
F1
1
VCC
H1
1
GND
H2
1
CANL
H3
1
CANH
H4
1
5V
H5
1
EXTRA
H6
1
HV
H7
1
CHICKER
H8
1
BKBM
H9
3
RPI
H10, H11, H12
1
RA1H1C112R
SW1
Show 13 more
QtyPartRefs
1
SMAZ12-13F
Micro Commercial Co
D1
1
CDRH127/LDNP-220MC
L1
1
CC0603KRX7R9BB104
0.1u
YAGEO
C1
1
25SVPF100M
C2
1
GRM21BR61H106KE43L
10u
Murata
C3
1
CC0603JRNPO9BN270
30p
YAGEO
C4
1
2.2u
C5
1
16SVPF180M
C6
2
0603WAF1003T5E
100k
UNI-ROYAL(Uniroyal Elec)
R1, R2
1
0603WAF1200T5E
120R
UNI-ROYAL(Uniroyal Elec)
R3
2
0603WAF0000T5E
0R
UNI-ROYAL(Uniroyal Elec)
R4, R5
1
0603WAF4752T5E
88.7k
UNI-ROYAL(Uniroyal Elec)
R6
1
0603WAF4752T5E
22.1k
UNI-ROYAL(Uniroyal Elec)
R7

Midplate design files

The KiCad project lives in the sfunderbots/Electrical repository on GitHub; these links point at the commit this page was built from.

Midplate: common questions

How big is the Midplate PCB?

The Midplate measures 174 × 147 mm, has 4 copper layers and is 1.67224 mm thick.

How many components are on the Midplate?

40 components, from 33 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the Midplate design files?

From the sfunderbots/Electrical repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the Midplate design in my own project?

The repository has no license, so all rights stay with sfunderbots. Use it as a reference, and ask the author before reusing the design.

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