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2 layers32.7 × 21.8 mmCoilArrayBlock, the printed circuit board in 3D

CoilArrayBlock

jackefraley/Three-Axis-Coil-Sensor
Open in PCBKitView on GitHub.kicad_pcb
Size
32.7 × 21.8 mm
Copper layers
2
Thickness
1.6 mm
Parts
15
Nets
9
Pads
36
Tracks, vias
46, 7
Pours
1
Routed
Yes
KiCad
KiCad 9.0 (file 20241229)
Created
1 Apr 2026
Updated
1 Apr 2026

Overview

CoilArrayBlock is an open-source printed circuit board by jackefraley, from the jackefraley/Three-Axis-Coil-Sensor repository on GitHub. It is a 2-layer board of 32.7 × 21.8 mm with 15 parts on 9 nets, routed with 46 tracks and 7 vias.

It is built around the AD8422ARMZ-R7 and B2B-XH-A. Its parts include 5 capacitors, 4 resistors, 3 connectors and 2 ICs.

Main components

2

README

README.md

Coil Array Block Project

This folder contains a KiCad hardware design for a magnetic-field sensing block.

Project

CoilArrayBlock

Analog sensing block containing only:

  • Current transformer front end: CWS CT-0705-HA (CT-0705-HA)
  • Instrumentation amplifier stage: AD8422 (AD8422ARMZ)
  • Input/output connector stage: JST B2B-XH-A (B2B-XH-A)

Interfaces

  • Env_array_magfield: magnetic field input to the sensing front end
  • Pwr_array_dcpwr: VCC supply input
  • Pwr_array_vref: Vref reference input
  • Array_sigproc_asig: Vout analog signal output

Repository Notes

This project includes KiCad source files (.kicad_sch, .kicad_pcb, .kicad_pro) and generated Gerbers. Supporting documentation is included in docs/. KiCad backup archives and local transient files are excluded via .gitignore.

PCB Image

Coil Array PCB

Parts

15
QtyValueFootprintReferences
3B2B-XH-AB2B:JST_B2B-XH-AJ1, J2, J3
20.1uFCapacitor_SMD:C_0603_1608MetricC1, C2
210uFCapacitor_SMD:C_0603_1608MetricC3, C4
25kCapacitor_SMD:C_0603_1608MetricR1, R2
11.05kCapacitor_SMD:C_0603_1608MetricR3
110nFCapacitor_SMD:C_0603_1608MetricC5
12000Capacitor_SMD:C_0603_1608MetricR4
1AD8422ARMZAD8422:RM_8_ADIU2
1LOGOLOGOG***
1~CT-0705-HA:CT-0705-HAU1

Questions

How big is the CoilArrayBlock PCB?

It measures 32.7 × 21.8 mm and has 2 copper layers, 1.6 mm thick.

What parts does the CoilArrayBlock use?

15 parts, built around the AD8422ARMZ-R7 and B2B-XH-A. 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 CoilArrayBlock KiCad files?

From the jackefraley/Three-Axis-Coil-Sensor repository on GitHub, at the commit this page was made from: the board is hardware/kicad/CoilArrayBlock/CoilArrayBlock.kicad_pcb and its schematic hardware/kicad/CoilArrayBlock/CoilArrayBlock.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the CoilArrayBlock design in my own project?

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

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