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Parts List

This parts list is not meant to be a no-brainer shopping list, rather a suggestion and an assistance respectively. Refer to the column description when choosing parts.

For some parts there is quite some choice. Depending on picked parts total cost can rise significantly, particulary with polypropylene caps, large tantalum caps, high precision resistors or high grade voltage references / regulators. The impact on performance should be negligible though.

Parts cost stated in this parts list is taken from the average to lower cost parts to give an idea how much money you have to spend at least (aprox. $100).

IDQTYdescriptionMouser.comDigikey.com$/ea.$/sum
  1 pcb (130x100mm, 70u copper layer)     30.00 30.00
x-form 1 power transformer, chassis mount, dual secondaries
2x 18V, at least 2x 350mA, (15VA or 25VA or 30VA)
toroidal preferable
546-185C36 TE62044-ND
TE62054-ND
TE62064-ND
16.00 16.00
C42, C43 2 47nF, LS 7.5mm, at least 35VAC
polypropylene film or polyester film or ceramic
140-PF2D473K BC1707-ND 0.25 0.50
C1 - C8 8 47nF, LS 5.0 or 7.5mm, at least 50VDC
polypropylene film or polyester film or ceramic
505-MKS2.047/63/10
505-MKP20.047/100/5
BC2068-ND
BC1630-ND
0.25 2.00
C9 - C16 8 330nF, LS 5.0mm, at least 50VDC
polypropylene film or polyester film or ceramic
505-MKS2.33/63/10
505-MKP20.33/100/5
P4569-ND 0.09 0.72
D1 - D8 8 Rectifier, TO-220 or DO-41, Schottky or soft revovery
MBR1045 / MBR1060 / 10TQ035 / 10TQ040
HFA08TB60 / RHRP860 / 11DQ06
821-MBR1045
512-MBR1045
821-MBR1060
MBR1060GOS-ND
HFA08TB60-ND
10TQ035-ND
10TQ040-ND
0.80 6.40
C17 - C20
C23, C24, C29, C30
8 2200uF / 35V
low ESR, LS 7.5mm, max diam=16mm
647-UHE1V222MHD P10309-ND 1.80 14.40
C25, C28 2 470uF / 35V ... 1000uF / 35V ... 2200uF / 35V
low ESR, LS 7.5mm, max diam=16mm
647-UHE1V222MHD
647-UHE1V102MHD
P10309-ND
P10305-ND
1.00 2.00
C21, C22 2 22uF...47uF / 35V electrolytic
alternatively 10uF...22uF / 35V Tantalum
LS 2.5mm, max diam=6mm
647-UUD1V470MCL
647-UPM1V470MEH
P11232-ND 0.35 0.70
C31, C32, C36, C37 4 10uF / 35V Tantalum, LS 2.5mm 74-173D35V10 399-1360-ND
478-1842-ND
1.50 6.00
C44, C45 2 1uF / 35V Tantalum, LS 2.5mm 74-173D35V1.0 399-1429-ND
399-1354-ND
478-1835-ND
0.50 1.00
C33, C34, C38, C39 4 100nF ceramic, at least 35VDC, LS 5.08mm 80-C322C104K5R 399-2081-ND
399-2074-ND
0.10 0.40
C35, C40
C27, C41
4 10nF ceramic multilayer, C0G or X7R
at least 50VDC, LS 5.08mm
80-C317C103K5R 399-2075-ND
399-2063-ND
478-2462-N
0.10 0.40
IC1, IC2 2 OPA544T (TO220 5-lead) n.a. OPA544T-ND 11.40 22.80
IC3, IC4 2 LM317T / LM317AT
(alternatively LM338 / LT338)
511-LM317T
512-LM317T
497-1575-5-ND
LM317AT-ND
1.00 2.00
D9 - D12 4 1N4001 ... 1N4004 512-1N4004 1N4004DICT-ND 0.20 0.80
R18, R19 2 cermet trimpot 500R, 3/8" (10mm)
W-series, top adjustment
594-64W501
652-3299P-1-501
CT94W501 1.50 3.00
IC5 1 REF102 n.a. REF102AP-ND
REF102BP-ND
4.00 4.00
for IC5 1 dip-8 socket (optional but recommended) 535-08-3518-10
575-193308
ED3308-ND
ED56083-ND
0.30 0.30
R1, R2 2 resistor, metal oxide, 2W, 5%, 10R 282-10-RC P10W-2BK-ND
10W-2-ND
0.30 0.60
R3 - R10 8 resistor, 1/4W, 1%, 50R   49.9XBK-ND 0.10 0.80
R21, R22 2 resistor, 1/4W, 1%, 1R     0.10 0.20
R11, R13 2 resistor, 1/4W, 1%, 120R     0.10 0.20
R12, R14 2 resistor, 1/4W, 1%, 1k8     0.10 0.20
R15, R16, R17 3 precision resistor, 1/4W, 10k, metal film
0.1% tolerance or hand matched 1%
66RC55LF-D-10k
71-CMF55-B-10K
71PTF-6510K000BZBF
  0.70 2.10
R20 1 resistor, 1/4W, 1%, metal film
6k20 for ±16.2V output
4k99 for ±15.0V = 30V output
3k50 for ±13.5V = 27V output
2k00 for ±12.0V = 24V output
    0.10 0.10
KK1 - KK4 4 heatsink SK129 532-529802B25 HS188 1.30 5.20
L1, L2 2 small choke coil / inductor, 1μH, axial
rated for at least 300mA
542-5300-01
542-70F-106
M7813-ND
DN2520-ND
0.60 1.20
  1 connector - terminal block 3pos
LS 5.08mm, pcb mount (optional)
651-1729131 277-1248-ND 1.00 1.00
  4 sink pad TO-220 insulating (optional)        
  1 IEC power inlet module with integrated fuse holder 693-6200.4315 Q206 3.00 3.00
  4 nylon shoulder washer / bushing
TO-220 (metric M3, imperial #4-40) (optional)
    0.10 0.40
misc.   fuse 5x20mm slow blow
screws, standoffs, hookup wire, test points, dip pin strip, enclosure, ...
       

Download parts list / BOM (bill of material)