2 layers44.2 × 29.3 mm
2 layers42.2 × 24.5 mm
Sdcard adapter
ifilot/sdcard-adapterSD-CARD development board, translates 5v to 3v3 signals
- Size
- 42.2 × 24.5 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 11
- Nets
- 14
- Pads
- 61
- Tracks, vias
- 228, 25
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 25 Jan 2025
- Updated
- 10 May 2025
Overview
Sdcard adapter is an open-source printed circuit board by ifilot, from the ifilot/sdcard-adapter repository on GitHub. It is a 2-layer board of 42.2 × 24.5 mm with 11 parts on 14 nets, routed with 228 tracks and 25 vias.
It is built around the AMS1117-3.3 and BSS138. Its parts include 4 transistors, 2 capacitors, 2 connectors and 1 IC. It belongs with the interfaces and adapters and microcontroller boards boards of this library.
Main components
2
AMS1117-3.3
SOT-223-40℃~+125℃ 0.003%Vout 1 1.1V@(800mA) 15V 1A 3.3V 5mA 72dB@(120Hz) Fixed Over Current Protection、Short Circuit Protection、Thermal shutdown Positive SOT-223 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSAdvanced Monolithic SystemsVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
BSS138
SOT-23-55℃~+150℃ 1 N-channel 1.1Ω@10V、1.2Ω@4.5V 1.2V 1.7nC@10V 17.5pF 340mA 350mW 50V 6.5pF N-Channel SOT-23 MOSFETs ROHShongjiachengMOSFETs
README
README.mdSD-CARD Development Board
This development board simplifies interfacing with SD cards by translating 5V logic signals to 3.3V signals, making it ideal for projects using microcontrollers or systems with 5V logic levels.
Features
- 5V to 3.3V signal level translation
- Compatible with standard SD cards
Parts
11| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | BSS138 | Package_TO_SOT_SMD:SOT-23 | Q1, Q2, Q3, Q4 |
| 2 | 100uF | Capacitor_SMD:C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C1, C2 |
| 2 | 10k | Resistor_SMD:R_Array_Convex_4x0603 | RN1, RN2 |
| 1 | AMS1117-3.3 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U1 |
| 1 | Micro_SD_Card_Det1 | components:CONN9_MSD-1_CUD | J2 |
| 1 | SDCARD | components:sdcard-socket | J1 |
Questions
How big is the Sdcard adapter PCB?
It measures 42.2 × 24.5 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Sdcard adapter use?
11 parts, built around the AMS1117-3.3 and BSS138. 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 Sdcard adapter KiCad files?
From the ifilot/sdcard-adapter repository on GitHub, at the commit this page was made from: the board is pcb/sdcard-adapter.kicad_pcb and its schematic pcb/sdcard-adapter.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Sdcard adapter design in my own project?
Its repository states no licence, so its author keeps all rights: ask ifilot before reusing the design.
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