Megapower DP – Part list

This is the list of electronic parts needed for the Megapower circuit. Note that the links to suppliers should help you to find the right components. However we have no control over their inventory. Therefore it is possible that some of the parts are not available anymore or (even worse) some parts have been changed. Therefore it is important, that you check again that you order the right components.

Electronic parts

Part Value Package Digikey Reichelt
C1 100u lead spacing 3.5mm, diameter max. 8mm 1189-1860-ND 
C2 47u lead spacing 2mm, diameter max. 5mm 493-5930-3-ND 
C3 100n WIMA MKS02 not available MKS-02 100N
C4 100n WIMA MKS02 not available MKS-02 100N
C5 100n WIMA MKS02 not available MKS-02 100N
C6 220p lead spacing 2.5mm 399-9860-1-ND 
C7 100u lead spacing 3.5mm, diameter max. 8mm 1189-1860-ND 
C8 100u lead spacing 3.5mm, diameter max. 8mm 1189-1860-ND 
C9 100u lead spacing 3.5mm, diameter max. 8mm 1189-1860-ND 
C10 47u lead spacing 2mm, diameter max. 5mm 493-5930-3-ND 
C11 3300u/50V max. diameter 22mm 493-8655-ND
C12 3300u/50V max. diameter 22mm 493-8655-ND
C13 100n WIMA MKS02 not available MKS-02 100N
C14 220p lead spacing 2.5mm 399-9860-1-ND 
C15 100u lead spacing 3.5mm, diameter max. 8mm 1189-1860-ND 
C16 100u lead spacing 3.5mm, diameter max. 8mm 1189-1860-ND 
C17 3300u/50V max. diameter 22mm 493-8655-ND
C18 3300u/50V max. diameter 22mm 493-8655-ND
C19 100n WIMA MKS02 not available MKS-02 100N
C20 100n WIMA MKS02 not available MKS-02 100N
D1 MBR1060 TO220ACS MBR1060GOS-ND
D2 MBR1060 TO220ACS MBR1060GOS-ND
D3 MBR1060 TO220ACS MBR1060GOS-ND
D4 MBR1060 TO220ACS MBR1060GOS-ND
R1 10k 0207/2V 10.0KXBK-ND METALL 10,0K
R2 4R7 0411V 4.7WCT-ND
R3 20k 0207/2V MFR-25FBF-52-20K0
R4 1k 0207/2V 1.00KXBK-ND METALL 1,00K
R5 3k3 0207/2V 3.32KXBK-ND
R6 10k 0207/2V 10.0KXBK-ND METALL 10,0K
R7 100k 0207/2V 100KXBK-ND METALL 100K
R8 20k 0207/2V MFR-25FBF-52-20K0
R9 1k 0207/2V 1.00KXBK-ND METALL 1,00K
R10 100k 0207/2V 100KXBK-ND METALL 100K
R11 4R7 0411V 4.7WCT-ND
R12 3k3 0207/2V 3.32KXBK-ND
U$1 CONN-2-3.5 35-2 A98036-ND AKL 059-02
U$2 LM3886 LM3886 LM3886TF/NOPB-ND 
U$3 CONN-2-3.5 35-2 A98036-ND AKL 059-02
U$4 LM3886 LM3886 LM3886TF/NOPB-ND 
U$5 CONN-2-3.5 35-2 A98036-ND AKL 059-02
X1 Screw terminal 2pos, 5.08mm spacing 281-1882-ND 
X2 Screw terminal 2pos, 5.08mm spacing 281-1882-ND 
X3 Screw terminal 2pos, 5.08mm spacing 281-1882-ND 
X4 Screw terminal 2pos, 5.08mm spacing 281-1882-ND 
X5 Screw terminal 3pos, 5.08mm spacing 281-1883-ND

Mains transformer

In addition you will need a mains transformer with two secondaries and the necessary power rating. For HiFi use I would recommend 1 transformer with 2x24V secondaries and 150W power rating (for a stereo pair). If you use Megapower as the power stage for the SinCos circuit, check what voltage is needed for your motor and use the same voltage for the transformer. This gives you enough headroom, because the peak voltage of the secondaries will be 1.4 x secondary voltage.

Heat sink

Also the LM3886 always need a heat sink. The necessary thermal resistance highly depends on your use case. For motors I’ve used very small heatsinks. Check out this picture from the data sheet:
3886-heatsink
If you’re not sure, ask in our forum. You should know what voltage your are using and what the resistance of your load is.

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