USB/RS232 Breakout Board
a.k.a. BoB
Materials
Gerber file
CAM/CAD data for the PCB referred to in this article is available as a Gerber file. Elektor GREEN and GOLD members can exclusively download these files for free as part of their membership. Gerber files allow a PCB to be produced on an appropriate device available locally, or through an online PCB manufacturing service.
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Components
The BOM (Bill of Materials) is the technically exhaustive listing of parts and other hardware items used to produce the working and tested prototype of any Elektor Labs project. The BOM file contains deeper information than the Component List published for the same project in Elektor Magazine. If required the BOM gets updated directly by our lab engineers. As a reader, you can download the list here.
Want to learn more about our BOM list? Read the BOM list article for extra information.
Component list
Component List
Resistors
Default: SMD 0603
R1,R8 = 0Ω, 75V/100mW
R2,R3 = 27Ω, 75V/100mW
R4 = 10kΩ, 50V/100mW
R5 = 15kΩ, 50V/100mW
R6,R7 = 270Ω, 50V/100 mW
Capacitors
Default: SMD 0603
C1,C5 = 10nF, 50V, 20%, X7R
C2,C3 = 47pF, 50V, 2%, C0G/NP0
C4,C7,C8 = 100nF, 50V, 10 %, X7R
C6 = 4.7µF, 6.3V, 10%, X5R
Inductors
L1,L2 = 330Ω @ 100MHz, 1.7A, 0.08Ω (Murata BLM18KG331SN1D)
Semiconductors
D1 = PRTR5V0U2X, ESD suppressor, SMD SOT-143B
LED1 (TX) = HSMG-C190, green, SMD 0603
LED2 (RX) = HSMS-C190, red, SMD 0603
IC1 = FT231XQ, SMD QFN-20
Miscellaneous
K1 = micro-USB type B, female, SMD
K2 = 6-pin pinheader, 0.1" pitch, right angled
K3,K4 = 9-pin pinheader, 0.1" pitch, straight
PCB no. 180537-1 v1.0, from the Elektor Store
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