2 layers70 × 50 mm
2 layers158.3 × 70 mm
WebsiteDocuments
- Size
- 158.3 × 70 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 42
- Nets
- 20
- Pads
- 94
- Tracks, vias
- 0, 0
- Routed
- Not yet
- KiCad
- KiCad 6 (file 20211014)
- Created
- 30 Nov 2022
- Updated
- 3 Oct 2024
Overview
LM1875 is an open-source printed circuit board by leistimo, from the leistimo/WebsiteDocuments repository on GitHub. It is a 2-layer board of 158.3 × 70 mm with 42 parts on 20 nets.
It is built around the LM1875T. Its parts include 16 resistors, 14 capacitors, 2 ICs and 2 connectors.
Main components
1README
README.mdWebsiteDocuments
Parts
42| Qty | Value | Footprint | References |
|---|---|---|---|
| 6 | 22K | Resistor_THT:R_Axial_DIN0309_L9.0mm_D3.2mm_P12.70mm_Horizontal | R1, R2, R7, R8, R9, R10 |
| 4 | 100K | Resistor_THT:R_Axial_DIN0309_L9.0mm_D3.2mm_P12.70mm_Horizontal | R11, R12, R15, R16 |
| 4 | 10uF | Capacitor_THT:CP_Radial_D5.0mm_P2.00mm | C1, C2, C3, C5 |
| 4 | MountingHole_Pad | MountingHole:MountingHole_2.2mm_M2_Pad | H3, H4, H5, H6 |
| 2 | 0.1uF | Capacitor_THT:C_Rect_L7.2mm_W2.5mm_P5.00mm_FKS2_FKP2_MKS2_MKP2 | C11, C12 |
| 2 | 0.22uF | Capacitor_THT:C_Rect_L7.2mm_W3.5mm_P5.00mm_FKS2_FKP2_MKS2_MKP2 | C9, C10 |
| 2 | 1 | Resistor_THT:R_Axial_DIN0309_L9.0mm_D3.2mm_P12.70mm_Horizontal | R13, R14 |
| 2 | 1000uF | Capacitor_THT:CP_Radial_D16.0mm_P7.50mm | C7, C8 |
| 2 | 10K | Resistor_THT:R_Axial_DIN0309_L9.0mm_D3.2mm_P12.70mm_Horizontal | R5, R6 |
| 2 | 1M | Resistor_THT:R_Axial_DIN0309_L9.0mm_D3.2mm_P12.70mm_Horizontal | R3, R4 |
| 2 | 1uF | Capacitor_THT:C_Rect_L7.2mm_W5.5mm_P5.00mm_FKS2_FKP2_MKS2_MKP2 | C4, C6 |
| 2 | 2200uF | Capacitor_THT:CP_Radial_D18.0mm_P7.50mm | C13, C14 |
| 2 | 4Ω-8Ω | TerminalBlock:TerminalBlock_Altech_AK300-2_P5.00mm | LS1, LS2 |
| 2 | LM1875 | Package_TO_SOT_THT:TO-220-5_P3.4x3.7mm_StaggerOdd_Lead3.8mm_Vertical | U1, U2 |
| 1 | AudioJack3 | Connector_Audio:Jack_3.5mm_CUI_SJ1-3525N_Horizontal | J2 |
| 1 | GND | MountingHole:MountingHole_2.2mm_M2_Pad | H2 |
| 1 | Screw_Terminal_01x04 | TerminalBlock_Phoenix:TerminalBlock_Phoenix_MKDS-1,5-4_1x04_P5.00mm_Horizontal | J1 |
| 1 | V+ | MountingHole:MountingHole_2.2mm_M2_Pad | H1 |
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Questions
How big is the LM1875 PCB?
It measures 158.3 × 70 mm and has 2 copper layers, 1.6 mm thick.
What parts does the LM1875 use?
42 parts, built around the LM1875T. 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 LM1875 KiCad files?
From the leistimo/WebsiteDocuments repository on GitHub, at the commit this page was made from: the board is KiCad/Amplifiers/LM1875/LM1875/LM1875.kicad_pcb and its schematic KiCad/Amplifiers/Amplifiers/Amplifiers.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the LM1875 design in my own project?
Its repository states no licence, so its author keeps all rights: ask leistimo before reusing the design.