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2 layers90 × 109 mmInterface 303, the printed circuit board in 3D

Interface 303

jeanpri/30323

303 eurorack interface for x0x-heart

Size
90 × 109 mm
Copper layers
2
Thickness
1.6 mm
Parts
169
Nets
122
Pads
482
Tracks, vias
1,098, 239
Pours
2
Routed
Yes
KiCad
KiCad 8.0 (file 20240108)
Created
22 Jan 2024
Updated
22 May 2026

Overview

Interface 303 is an open-source printed circuit board by jeanpri, from the jeanpri/303 repository on GitHub. It is a 2-layer board of 90 × 109 mm with 169 parts on 122 nets, routed with 1,098 tracks and 239 vias.

It is built around the TL074IDE4, 74AHC1G00GW and 74AHC1G08GW, with the 30310-6002HB and MLZ2012M330WT000 among its other parts. Its parts include 71 resistors, 25 connectors, 22 capacitors, 18 diodes and 8 ICs. It belongs with the interfaces and adapters boards of this library.

Main components

5

Parts

169
QtyValueFootprintReferences
2210K_LIB:R_0805R1, R2, R3, R4, R5, R17, R18, R19, R20, R26, R27, R28, R37, R44, R45, R46 +6
9Conn_01x03Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_VerticalJ4, J5, J6, J9, J10, J11, J12, J13, J14
8100n_LIB:C_0603C3, C10, C11, C12, C13, C15, C21, C22
851K_LIB:R_0805R9, R11, R13, R15, R34, R50, R62, R64
72K2_LIB:R_0805R21, R22, R23, R24, R32, R68, R69
7CERADIODE_LIB:CERA_0603D8, D9, D10, D11, D12, D13, D14
7PJ398SM-BLACK_LIB:Thonkiconn_smallJACK5, JACK6, JACK7, JACK8, JACK9, JACK10, JACK11
61K_LIB:R_0805R35, R36, R51, R54, R72, R73
61N4148Diode_SMD:D_SOD-123D1, D2, D3, D4, D15, D16
636K_LIB:R_0805R10, R12, R14, R16, R63, R65
6PJ398SM-BLACK_LIB:Thonkiconn_small_head_to_headJACK1, JACK2, JACK3, JACK4, JACK12, JACK13
5B50K_LIB:Alpha9mmP2, P4, P6, P9, P10
4100K_LIB:R_0805R25, R33, R38, R39
4100p_LIB:C_0603C8, C9, C16, C17
422u_LIB:C_1206C2, C18, C19, C20
4TRIM_LIB:HOLE_5_2mmTRIM1, TRIM2, TRIM3, TRIM4
347uf_LIB:CP_6.3x5.8C4, C5, C7
3A50K_LIB:Alpha9mmP1, P3, P7
3Conn_01x06Connector_PinHeader_2.54mm:PinHeader_1x06_P2.54mm_VerticalJ1, J2, J3
3LEDLED_THT:LED_D3.0mmD17, D18, D20
20R_LIB:R_0805R58, R59
2100k_LIB:R_0805R47, R48
21N5819HW-FDiode_SMD:D_SOD-123D5, D6
2220R_LIB:R_0805R55, R56
247K_LIB:R_0805R70, R71
2742792664_LIB:R_0603L2, L3
2Conn_01x02_LIB:PinHeader_1x02_P2.54mm_VerticalJ7, J8
2LM339AMX/NOPBPackage_SO:SOIC-14_3.9x8.7mm_P1.27mmU1, U7
2LP4EE1PBCTY_LIB:LP4EE1PBCTSW1, SW2
112K_LIB:R_0805R31
1150K_LIB:R_0805R49
115K_LIB:R_0805R61
11u_LIB:CP_4x5.3C1
1220K_LIB:R_0805R43
13.7K_LIB:R_0805R29
130310-6002HB_LIB:30310-6002HBJ0
1330R_LIB:R_0805R41
14.7n_LIB:C_0603C14
14.7uf_LIB:CP_5x5.8C6
1470K_LIB:R_0805R42
168K_LIB:R_0805R52
168R_LIB:R_0805R30
174AHC1G00Package_TO_SOT_SMD:SOT-23-5U2
174AHC1G08Package_TO_SOT_SMD:SOT-23-5U8
1A1M_LIB:Alpha9mmP5
1B50K_LIB:Alpha9mm_dualP8
1LM555CMMX/NOPBPackage_SO:VSSOP-8_3.0x3.0mm_P0.65mmU5
1LOGO_LIB:LOGO-303-REV3G***
1LOGO_LIB:logo-303G***
1M74HC14YTTRPackage_SO:TSSOP-14_4.4x5mm_P0.65mmU3
1MC7805ACD2TR4GPackage_TO_SOT_SMD:TO-263-3_TabPin2U4
1MLZ2012M330WT000_LIB:R_0805L1
1NC_LIB:R_0805R57
1TL074IDE4Package_SO:SOIC-14_3.9x8.7mm_P1.27mmU6

The 168 most common of 169 parts.

Questions

How big is the Interface 303 PCB?

It measures 90 × 109 mm and has 2 copper layers, 1.6 mm thick.

What parts does the Interface 303 use?

169 parts, built around the TL074IDE4, 74AHC1G00GW, 74AHC1G08GW and 30310-6002HB. 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 Interface 303 KiCad files?

From the jeanpri/303 repository on GitHub, at the commit this page was made from: the board is source files/interface 303/kicad/303.kicad_pcb and its schematic source files/interface 303/kicad/303.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the Interface 303 design in my own project?

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

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