Resistors (1%, 0603)
R1–R4 = 27Ohm
R5,R6 = 180Ohm
R7–R13,R16 = 10kOhm
R14 = 6.04kOhm
R15 = 1kOhm
R17 = 120Ohm
R18,R19 = 680Ohm (recommended value)
Capacitors
C1,C2,C6–C12,C21 = 100nF 50V (10%, X7R, ceramic multi-layer 0603)
C3,C4,C5,C13 = 47µF 10V (20%, ESR 0.7, tantalum, case B 1210)
C14,C15 = 18pF 50V (5%, C0G/NP0, ceramic multi-layer 0603)
C16 = 10µF 16V (10 %, tantalum, case B 1210)
C17 = 1µF 25V (10 %, X7R, ceramic multi-layer 0805)
C18 = 220nF / 25V (10%, X7R, ceramic multi-layer 0603)
C19,C20 = 4.7µF 10V (10%, X5R, ceramic multi-layer 0805)
Cx = not fitted
Inductors
L1-L6 = ferrite bead, 600Ohm @ 100MHz, 500mA (0603)
L7 = 18µH choke (1.25A)
Semiconductors
D1 = zener diode 5.6V 3W
D2 = zener diode 3.6V 375mW
D3 = green LED (0603)
D4 = yellow LED (0603)
D5–D8 = bipolar suppressor diode (0603)
D9,D12 = ES1G diode fast recovery 1A 400V
D10,D11 = B130-13-F Schottky diode 1A 30V
IC1 = 3.3V voltage LDO regulator 1.3A (SOT-223)
IC2 = MIC2005 0.5 A current limiting power distribution switch (SOT-23-6L)
IC3 = Vinculum II USB Host Controller (QFN32)
IC4 = LM2842 600 mA step-down DC/DC regulator (TSOT-6)
IC5 = LT1785 RS485-Transceiver (SOIC8)
Miscellaneous
X1 = 12MHz quartz crystal (18pF 30ppm)
F1 = 750mA Polyfuse
S1 = 4-pin (2x2) pinheader with jumper, or 2-way DIP switch
K1 = USB Micro-B socket
K2 = USB A socket
K3 = 6-pin pinheader (2.0mm)
K4 = 6-pin pinheader (0.1’’)
K5,K6 = 8-pin pinheader (0.1’’)
K7 = 2.0mm power adapter plug
K8 = 4-way PCB screw terminal block (5.00mm)
K9 = 8-way mini DIN socket
JP1 = 3-pin pinheader (0.1’’) + 1 pin + jumper
JP2 = 2-pin pinheader (0.1’’) with jumper
JP3 = solder bridge
JP4 = 3-pin pinheader (0.1’’) with jumper