4 layers121 × 40 mm
PowerAmplifier
BlockWorker/ModularAudio
Compact, modular, versatile, hi-fi audio system concept.
156 parts2
6 layers36 × 38 mm
USBPanel
BlockWorker/ModularAudio2Compact, modular, versatile, hi-fi audio system concept.
- Size
- 36 × 38 mm
- Copper layers
- 6
- Thickness
- 1.56 mm
- Parts
- 72
- Nets
- 62
- Pads
- 295
- Tracks, vias
- 398, 162
- Pours
- 234
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 11 Jul 2024
- Updated
- 26 Sep 2025
Overview
USBPanel is an open-source printed circuit board by BlockWorker, from the BlockWorker/ModularAudio repository on GitHub. It is a 6-layer board of 36 × 38 mm with 72 parts on 62 nets, routed with 398 tracks and 162 vias.
It is built around the 74LVC1T45DW, M24512E-FMN6TP and TS3USB31RSE, with the NX138BKR and VBUS051CD-HD1-G-08 among its other parts. Its parts include 20 resistors, 18 capacitors, 7 connectors, 6 ICs and 6 transistors. It belongs with the audio and music boards of this library.
Main components
5
74LVC1T45DW
SC-70-6(SOT-363)-40℃~+125℃ 1 1 1.65V~5.5V 1.65V~5.5V Bidirectional Decoupling、Power-Off Protection Tri-State SC-70-6(SOT-363) Translators, Level Shifters ROHSDiodes IncorporatedTranslators, Level Shifters
M24512E-FMN6TP
SO-8-40℃~+85℃ 1.6V~5.5V 1MHz 200 Years 330nA 360uA 4,000,000 Cycles 4ms 512Kbit Hardware write protection function、Software write protection function、Built-in power-on reset (POR)、Built-in error correction code (ECC) function I2C SO-8 EEPROM ROHSSTMicroelectronicsEEPROM
TS3USB31RSE
UQFN-8(1.5x1.5)-40℃~+85℃ 1 1.22GHz 1:1 250ps 25ns 30ns 3V~4.3V 6pF 6Ω UQFN-8(1.5x1.5) Analog Switches, Multiplexers ROHSTexas InstrumentsAnalog Switches / Multiplexers
NX138BKR
SOT-23-55℃~+150℃ 1 N-channel 1.5V 20.2pF 265mA 2pF 3.5Ω@10V 310mW 490pC@4.5V 60V SOT-23 MOSFETs ROHSNexperiaMOSFETs
VBUS051CD-HD1-G-08
LLP1006-2L-40℃~+125℃ 0.6pF 1 10nA 14V 28W@8/20us 2A@8/20us 5.5V 7.6V ESD IEC 61000-4-2、IEC 61000-4-5 Unidirectional LLP1006-2L ESD and Surge Protection (TVS/ESD) ROHSVishay IntertechnologyESD And Surge Protection (TVS/ESD)
Parts
72| Qty | Value | Footprint | References |
|---|---|---|---|
| 8 | 4.7kΩ | Resistor_SMD:R_0603_1608Metric | R1, R2, R13, R14, R15, R16, R18, R19 |
| 6 | 10kΩ | Resistor_SMD:R_0603_1608Metric | R3, R6, R8, R9, R10, R12 |
| 4 | 10μF 50Vs | Capacitor_SMD:C_0805_2012Metric | C4, C5, C15, C16 |
| 4 | 2.2kΩ | Resistor_SMD:R_0603_1608Metric | R4, R5, R17, R20 |
| 4 | NX138BK | Package_TO_SOT_SMD:SOT-23 | Q3, Q4, Q5, Q6 |
| 3 | 0.1μF | Capacitor_SMD:C_0603_1608Metric | C11, C14, C17 |
| 3 | 10μF 25V | Capacitor_SMD:C_0805_2012Metric | C1, C2, C3 |
| 2 | 100kΩ | Resistor_SMD:R_0603_1608Metric | R7, R11 |
| 2 | 10nF | Capacitor_SMD:C_0603_1608Metric | C8, C13 |
| 2 | 330pF | Capacitor_SMD:C_0603_1608Metric | C9, C10 |
| 2 | 4.7μF 25Vl | Capacitor_SMD:C_0805_2012Metric | C7, C12 |
| 2 | CLMVC-FKC | BW_Active:LED_Cree-PLCC4_2x2mm_CW | D2, D3 |
| 2 | ISZ0702NLS | BW_Active:Infineon_PG-TSDSON-8-40 | Q1, Q2 |
| 1 | 10μF 50V | Capacitor_SMD:C_1206_3216Metric | C18 |
| 1 | 3.3V | BW_PassiveMechanical:TP_0603_1608Metric_Fused | TP1 |
| 1 | 330μF 6.3V | Capacitor_SMD:CP_Elec_6.3x5.9 | C6 |
| 1 | 74LVC1T45DW | Package_TO_SOT_SMD:SOT-363_SC-70-6 | U6 |
| 1 | I2Cc | Connector_PinHeader_2.54mm:PinHeader_2x03_P2.54mm_Vertical | J7 |
| 1 | I2Ct | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J6 |
| 1 | M24512E-FMN | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U3 |
| 1 | PORT1 | BW_Connectors:USB_C_Receptacle_Amphenol_12402082E512A | J1 |
| 1 | PORT1_UFP | BW_PassiveMechanical:TP_0603_1608Metric_Fused | TP3 |
| 1 | PORT1_VBUS | BW_PassiveMechanical:TP_0603_1608Metric_Fused | TP4 |
| 1 | PORT2 | BW_Connectors:USB_C_Receptacle_Amphenol_12402082E512A | J2 |
| 1 | PORT2_EN | BW_PassiveMechanical:TP_0603_1608Metric_Fused | TP2 |
| 1 | PORT2_HI | BW_PassiveMechanical:TP_0603_1608Metric_Fused | TP7 |
| 1 | PORT2_VBUS | BW_PassiveMechanical:TP_0603_1608Metric_Fused | TP5 |
| 1 | PWR | Connector_Molex:Molex_Nano-Fit_105309-xx03_1x03_P2.50mm_Vertical | J3 |
| 1 | SINK | Connector_Molex:Molex_Nano-Fit_105309-xx02_1x02_P2.50mm_Vertical | J5 |
| 1 | TPS25751S | Package_DFN_QFN:VQFN-32-1EP_4x4mm_P0.4mm_EP2.8x2.8mm | U1 |
| 1 | TPS25810 | BW_Active:Texas_RVC0020A_WQFN-20-1EP_3x4mm_P0.5mm_EP2.6x1.6mm | U4 |
| 1 | TS3USB31 | BW_Active:Texas_RSE0008A_UQFN-8_1.5x1.5mm_P0.5mm | U5 |
| 1 | USB_UFP | BW_Connectors:Amphenol_MINITEK_WTB_1.25_4P | J4 |
| 1 | VBUS051CD-HD1 | Diode_SMD:D_0402_1005Metric | D1 |
| 1 | VBUS54CV-HSF | BW_Active:Vishay_LLP75-6L | U2 |
| 1 | VSYS | BW_PassiveMechanical:TP_0603_1608Metric_Fused | TP6 |
| 1 | WP | Jumper:SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm | JP1 |
The 68 most common of 72 parts.
Questions
How big is the USBPanel PCB?
It measures 36 × 38 mm and has 6 copper layers, 1.56 mm thick.
What parts does the USBPanel use?
72 parts, built around the 74LVC1T45DW, M24512E-FMN6TP, TS3USB31RSE and NX138BKR. 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 USBPanel KiCad files?
From the BlockWorker/ModularAudio repository on GitHub, at the commit this page was made from: the board is USBPanel/USBPanel.kicad_pcb and its schematic 12VLDO/12VLDO.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the USBPanel design in my own project?
Its repository states no licence, so its author keeps all rights: ask BlockWorker before reusing the design.
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