Sftii
About the Sftii PCB
Sftii is an open source PCB design by bubbajfett, published on GitHub under the CC0-1.0 license. It is a 2-layer board measuring 55.1 × 51.6 mm, with 53 components from 26 distinct parts.
By type, the board carries 24 resistors, 18 capacitors, 6 transistors and 1 connector.
It belongs with the audio designs in this gallery.
From the project
collection of guitar pedal PCB layouts in kicad
This is based on the Catlinbread SFT overdrive pedal
The 2nd version of this layout is unverified; this layout is slightly modified and currently unverified.
Original version of this layout had capacitor, c16, was reversed polarity. An additional input resistor, r24, was added based on the tagboardeffects layout.
All trademarks belong to their respective trademark owners.
Sftii bill of materials (BOM)
53 components, 26 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 6 | 2n5457 | TO-92_HandSolder | Q1, Q2, Q3, Q4, Q5, Q6 |
| 1 | Conn_01x05 | PinHeader_1x05_P2.54mm_Vertical | J1 |
| 3 | A1M | Pot_Underside | RV1, RV2, RV3 |
| 1 | A250K | Pot_Underside | RV4 |
| 1 | 470u | CP_Radial_D8.0mm_P3.50mm | C1 |
| 2 | 100n | C_Rect_L7.0mm_W3.5mm_P5.00mm | C2, C8 |
| 3 | 1u | CP_Radial_D4.0mm_P2.00mm | C3, C7, C13 |
| 4 | 4.7n | C_Rect_L7.0mm_W3.5mm_P5.00mm | C4, C12, C17, C18 |
| 1 | 68n | C_Rect_L7.0mm_W3.5mm_P5.00mm | C5 |
| 1 | 150p | C_Disc_D5.1mm_W3.2mm_P5.00mm | C6 |
| 2 | 1n | C_Rect_L7.0mm_W3.5mm_P5.00mm | C9, C10 |
| 1 | 680p | C_Disc_D5.0mm_W2.5mm_P5.00mm | C11 |
| 1 | 47p | C_Disc_D5.1mm_W3.2mm_P5.00mm | C14 |
| 1 | 2.2u | CP_Radial_D4.0mm_P2.00mm | C15 |
| 1 | 22u | CP_Radial_D5.0mm_P2.00mm | C16 |
| 2 | 470k | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R1, R5 |
| 7 | 1M | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R2, R3, R9, R10, R17, R18, R24 |
| 3 | 100k | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R4, R11, R14 |
| 4 | 10k | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R6, R7, R12, R19 |
| 1 | 22k | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R8 |
Show 6 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | 4.7K | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R13, R15 |
| 1 | 120k | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R16 |
| 1 | 1k | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R20 |
| 1 | 1.8K | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R21 |
| 1 | 3.9k | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R22 |
| 1 | 33k | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R23 |
Sftii design files
The KiCad project lives in the bubbajfett/kicad-guitar-pedals repository on GitHub; these links point at the commit this page was built from.
Sftii: common questions
How big is the Sftii PCB?
The Sftii measures 55.1 × 51.6 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Sftii?
53 components, from 26 distinct parts. The full bill of materials is listed on this page.
Where can I download the Sftii design files?
From the bubbajfett/kicad-guitar-pedals repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Sftii design in my own project?
Yes, under the terms of its CC0-1.0 license, which bubbajfett chose for the repository.
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