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4 layers98.2 × 56 mmRPI5-CFE Hat, the printed circuit board in 3D

RPI5-CFE Hat

oscimp/wr_acorn12

White Rabbit time and frequency transfer on the Artix7 of the Acorn CLE125

Size
98.2 × 56 mm
Copper layers
4
Thickness
1.6 mm
Parts
55
Nets
69
Pads
251
Tracks, vias
517, 175
Pours
5
Routed
Yes
KiCad
KiCad 10.0 (file 20260206)
Created
25 Apr 2025
Updated
26 Oct 2026

Overview

RPI5-CFE Hat is an open-source printed circuit board by oscimp, from the oscimp/wr_acorn repository on GitHub, published under the AGPL-3.0 licence. It is a 4-layer board of 98.2 × 56 mm with 55 parts on 69 nets, routed with 517 tracks and 175 vias.

It is built around the LM1117MP-1.8 and PCA9306D. Its parts include 21 resistors, 11 capacitors, 4 connectors, 3 ICs and 2 diodes.

Main components

2

README

RPi_HAT/README.md

RPi5 HAT

Parts

55
QtyValueFootprintReferences
74k7Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolderR1, R4, R5, R6, R8, R9, R13
5TestPointTestPoint:TestPoint_Pad_D1.5mmTP2, TP3, TP4, TP5, TP8
4MountingHoleMountingHole:MountingHole_2.7mm_M2.5H1, H3, H4, H5
3100nCapacitor_SMD:C_0402_1005Metric_Pad0.74x0.62mm_HandSolderC4, C6, C8
310kResistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolderR11, R20, R23
20Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolderR18, R19
21uCapacitor_SMD:C_0402_1005Metric_Pad0.74x0.62mm_HandSolderC10, C11
222uCapacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolderC5, C7
222uCapacitor_SMD:C_0805_2012MetricC2, C3
2FerriteBeadInductor_SMD:L_0603_1608Metric_Pad1.05x0.95mm_HandSolderFB1, FB2
2NCResistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolderR16, R17
2TestPointTestPoint:TestPoint_Pad_D1.0mmTP_3V1, TP1
11.5uHInductor_SMD:L_Vishay_IHLP-2020L1
1100kResistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolderR21
1100pFCapacitor_SMD:C_0402_1005MetricC9
110kResistor_SMD:R_0402_1005MetricR14
110uFCapacitor_SMD:C_0805_2012MetricC1
1137KResistor_SMD:R_0402_1005MetricR2
1200kResistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolderR15
130KResistor_SMD:R_0402_1005MetricR3
1470Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolderR10
1470RResistor_SMD:R_0402_1005MetricR7
1Bus_M.2_Socket_MMyKiCadLibs:Conn_TE-M.2-0.5-67P-doublesidedJ3
1Conn_01x16_ShieldedConnector_FFC-FPC:Hirose_FH12-16S-0.5SH_1x16-1MP_P0.50mm_HorizontalJ1
1Conn_02x03_Odd_EvenConnector_PinSocket_2.54mm:PinSocket_2x03_P2.54mm_VerticalJ5
1LEDLED_SMD:LED_0603_1608Metric_Pad1.05x0.95mm_HandSolderD1
1LM1117MP-1.8Package_TO_SOT_SMD:SOT-223-3_TabPin2U3
1PCA9306Package_SO:Texas_DGN0008B_VSSOP-8-1EP_3x3mm_P0.65mm_EP2x3mm_Mask1.88x1.98mmU2
1RedLED_SMD:LED_0603_1608MetricD4
1SFPConnector:Connector_SFP_and_CageJ2
1TPS564242DRLRfootprint:TPS564242DRLR_TEXU1

Questions

How big is the RPI5-CFE Hat PCB?

It measures 98.2 × 56 mm and has 4 copper layers, 1.6 mm thick.

What parts does the RPI5-CFE Hat use?

55 parts, built around the LM1117MP-1.8 and PCA9306D. 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 RPI5-CFE Hat KiCad files?

From the oscimp/wr_acorn repository on GitHub, at the commit this page was made from: the board is RPi_HAT/RPI5-CFE-Hat.kicad_pcb and its schematic RPi_HAT/RPI5-CFE-Hat.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the RPI5-CFE Hat design in my own project?

Its repository publishes it under the AGPL-3.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).

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