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K PA Protec

F6ITU·K_PA_Protec

K PA Protec PCB layout, top view — open source board by F6ITU
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About the K PA Protec PCB

K PA Protec is an open source PCB design by F6ITU, published on GitHub. It is a 2-layer board measuring 102.5 × 75 mm, with 83 components from 23 distinct parts.

Other key parts include the MCP23017_SO, LM339, 74HC02, 74HC21 and LM1117-3.3. By type, the board carries 27 resistors, 24 capacitors, 8 connectors, 7 diodes, 6 ICs and 4 inductors.

It belongs with the audio and sensors designs in this gallery.

From the project

LA2NI OpenHPSDR Power Amplifier Protection board- kicad port

OpenHPSDR P.A. OpenHPSDR Protection board by LA2NI (Munin 400)

This protection board is part of a set consisting of a 400 W LD-Mos based RF power amplifier (Munin 400), a medium power (600 or 1500 W) Zolotarev low pass filter, an Automatic Antenna Tuner (ATU) nickname « Aries » and a 4 port antenna switch.

All these developments are the work and intellectual property of Kjell Karlsen LA2NI and Laurence Barker G8NJJ.

K PA Protec, from the project README
From the project README

Main components on the K PA Protec

MCP23017_SOLM33974HC0274HC21LM1117-3.3YAAJ_DCDC_StepDown_LM2596

K PA Protec bill of materials (BOM)

83 components, 23 distinct parts.

QtyPartRefs
1
MCP23017_SO
IC1
1
LM339
U1
1
74HC02
U2
1
74HC21
U3
1
LM1117-3.3
U4
1
YAAJ_DCDC_StepDown_LM2596
U6
2
2N7002
Q1, Q2
3
IDC 10 Straight
J1, J3, J5
2
Molex KK 4
J2, J8
2
Molex KK 2
J4, J6
1
Molex KK 3
J7
4
1k
RV12, RV13, RV14, RV15
1
RotaryEncoder_Dual_Switch
SW1
1
BAS16J
D1
6
S1M
D2, D3, D4, D5, D6, D7
4
2743021447
L1, L2, L3, L4
16
100n
C1, C2, C5, C6, C8, C12, C13, C14 +8
3
10u
C3, C11, C24
5
1u
C4, C7, C9, C10, C15
9
2.2k
R1, R2, R3, R4, R9, R10, R11, R16 +1
Show 3 more
QtyPartRefs
10
10k
R5, R21, R23, R25, R26, R27, R28, R29 +2
7
1k
R6, R7, R8, R18, R19, R20, R22
1
22k
R24

K PA Protec design files

The KiCad project lives in the F6ITU/K_PA_Protec repository on GitHub; these links point at the commit this page was built from.

K PA Protec: common questions

How big is the K PA Protec PCB?

The K PA Protec measures 102.5 × 75 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the K PA Protec?

83 components, from 23 distinct parts. The full bill of materials is listed on this page.

Where can I download the K PA Protec design files?

From the F6ITU/K_PA_Protec repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the K PA Protec design in my own project?

The repository has no license, so all rights stay with F6ITU. Use it as a reference, and ask the author before reusing the design.

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