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Bill of materials
Dilshan R Jayakody edited this page Oct 25, 2019
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The following tables contain components needed to assemble the high power USB hub. To overcome the PCB manufacturing cost, and reduce the board size, we employ a couple of surface-mounted components into this module.
| Reference designator | Value | Quantity | Notes |
|---|---|---|---|
| C1, C3, C9, C12, C15, C18, C21, C22 | 0.1μF 16V | 8 | SMD 0805 Package |
| C2, C4, C5 | 10μF 16V | 3 | |
| C6 | 100μF 16V | 1 | |
| C7, C10, C13, C16 | 470μF 25V | 4 | |
| C8, C11, C14, C17 | 220μF 25V | 4 | |
| C19 | 0.33μF 16V | 1 | |
| C20 | 0.1μF 16V | 1 | |
| D1, D10, D11, D12, D13, D14 | Red LED | 5 | SMD 0805 Package |
| D2, D3, D4, D5 | Green LED | 4 | SMD 0805 Package |
| F1, F2, F3, F4 | MF-LSMF300X-2 | 4 | 6V 3A Resettable fuse |
| F5 | JK16-800 | 1 | 16V 8A Resettable fuse |
| R1, R3, R4 | 2.2KΩ | 3 | SMD 0805 Package |
| R2 | 2.7KΩ (1%) | 1 | SMD 0805 Package |
| R5, R6 | 100KΩ | 2 | SMD 0805 Package |
| R20 | 100KΩ (1%) | 1 | SMD 0805 Package |
| R7, R9, R11, R13 | 10KΩ | 4 | SMD 0805 Package |
| R8, R10, R12, R14 | 22KΩ | 4 | SMD 0805 Package |
| R15, R16, R17, R18 | 5.6KΩ | 4 | SMD 0805 Package |
| R19 | 51KΩ (1%) | 1 | SMD 0805 Package |
| R21 | 47KΩ | 1 | SMD 0805 Package |
| FB1, FB2 | Murata BL01RN1A1D2 | 2 | 3.6mm Ferrite Bead |
| J1 | Molex 67068-9000 | 1 | USB Type B connector |
| J2, J3, J4, J5 | Molex 67643-0910 | 4 | USB Type A connector |
| J8 | 5mm, 2-pin Screw Terminal | 1 | |
| J6 | 1×5 way 2.5mm Pin Header | 1 | |
| J7 | 1×3 way 2.5mm Pin Header | 1 | |
| Y1 | 12.00MHz Crystal | 1 | HC-49U Crystal |
| SW1, SW2, SW3, SW4 | 6mm Tactile Switch | 4 | |
| L1, L2, L3, L4 | 33μH 3A Toroidal Inductor | 4 |
This section contains a list of ICs and transistors used in the USB morse keyer unit. Most of the transistors (Q1 - Q4) in this list can replace with substitute components available in the market.
| Designator | Component | Quantity | Description | Product page / Datasheet |
|---|---|---|---|---|
| U1 | PIC16F630 | 1 | 14-Pin, Flash-Based 8-bit CMOS Microcontroller | https://www.microchip.com/wwwproducts/en/PIC16F630 |
| U2 | FE1.1s | 1 | USB 2.0, High Speed, 4-Port Hub Controller | https://cdn-shop.adafruit.com/product-files/2991/FE1.1s+Data+Sheet+(Rev.+1.0).pdf |
| U3, U4, U5, U6 | LM2596T-5.0 | 4 | 150kHz 3A Step-Down Voltage Regulator | http://www.ti.com/lit/ds/symlink/lm2596.pdf |
| U7 | KA78M05 | 1 | 3-Terminal, 0.5A, Positive Voltage Regulator | https://www.mouser.com/datasheet/2/149/LM78M05-889495.pdf |
| Q1, Q2, Q3, Q4 | J3Y (S8050) | 4 | High Current General Purpose NPN transistor | https://www.zahranvane.com/download/S8050.pdf.3d9e9d17e0eb11df38de344989ecc805 |