Capacitors
The following capacitors are surface mount, size 0805 (or metric 2012) multilayer ceramic,
dielectric C0G (or NP0), working voltage 50V, tol/-5%.
33pF
C18, C19
47pF
C31, C32
100pF
C39, C48, C49, C46, C40
1nF
C9, C21, C29, C10, C38
The following capacitors are surface mount, size 0805 (or metric 2012) multilayer ceramic,
dielectric X7R, working voltage 50V, tol/-5%.
100nF
C1, C12, C14, C42, C30, C3, C4, C20, C2, C5, C35, C7, C11, C15, C24, C26, C8,
C6, C23, C41, C34, C25, C13, C22, C44, C45, C47, C43, C37, C17, C36, C52, C27
The following capacitors are standard through hole electrolytic capacitors with 0.1” (2.5mm) or
0.2” (5mm) radial leads.
1uF/63V electrolytic
C16
4u7/63V electrolytic
C50, C51
10uF/35V electrolytic
C33
47uF/25V electrolytic
C28
Discrete Semiconductors
The following devices are surface mount parts.
1N4148WS signal diode
D1, D17, D20, D3, D8, D10, D16, D13, D2, D9, D15, D7, D4, D19
BAT42WS Schottky diode D5, D14, D6, D18
The following devices are standard through hole parts.
1N4001 diode
D11
1N5819 Schottky diode
D12, D22, D21
BC550 NPN transistor
Q1, Q2
Integrated Circuits
The following parts are all surface mount devices. All are small outline (SOIC) narrow body
packages.
74HC00D quad NAND gate
U8
74HC02D quad NOR gate
U22, U28, U3, U23
74HC14D hex schmitt trigger
U27, U2, U15
74HC74D dual d-type flip-flop
U5, U21, U7, U4, U6
74HC4053D analogue switch
U12, U18, U19, U13, U16, U10, U17, U11
DG202BDY analogue switch
U1
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