Here is a sequence of photos showing the construction
of a
Miller Solar Engine
using all
SMD parts. I have used Bostik Blu-Tak to hold the parts while soldering.
I have chosen to use a FET for several reasons. Using a FET instead of a
normal transistor means that you can eliminate the current limiting
resistor on the base of the transistor - less parts! It makes a good
base for building the SE on. And the output pins on finished assembly
can easily connect to the enable pins of a 74AC240 chip when
placed directly on top.
![](images/01SMDSEParts.thumb.jpg)
MN1382-J , ZVN2106G, Case 0805 Cap .22Uf 16v, MiniMelf Diode
![](images/02FETPrep.thumb.jpg)
Bend gate lead around to top of chip.
![](images/03Con1.thumb.jpg)
Slide pin 1 of 1382 under gate and solder.
![](images/04Con1a.thumb.jpg)
Apply a small amount of solder to pin 3 of the 1382.
![](images/05Con2.thumb.jpg)
Solder anode of diode to pin 3 of the 1382
![](images/06Con3.thumb.jpg)
Bend source pin up to meet cathode of diode.
![](images/07Con3a.thumb.jpg)
End view of diode cathode.
![](images/08Con4.thumb.jpg)
Strip wire and bend end - insert into gap.
![](images/09Con4a.thumb.jpg)
Solder.
![](images/10Con5.thumb.jpg)
Use tweezers to place capacitor on top of 1382.
![](images/11Con5a.thumb.jpg)
Solder capacitor to edge of diode anode.
![](images/12Con6.thumb.jpg)
Strip wire and form a small hook in the end, rotate assembly so you are looking down at the top.
![](images/13Con6a.thumb.jpg)
Use Bostik Blu-Tak to hold wire across cap and pin 2 of the 1382 and solder.
![](images/14SMDSE.thumb.jpg)
Here is the SE before re-soldering the joints quickly one at a time - for a good finish.
![The finished SMD-SE (5mm FLED for size comparison)](images/15Complete.thumb.jpg)
Finished SMD-SE after cleaning with a toothbrush under water to remove the HydroX solder flux (5mm FLED for size comparison).
![Zetex ZVN2106G connection diagram](images/FET.thumb.gif)
Zetex ZVN2106G connection diagram.
![Panasonic MN 1382 connection diagram](images/1382_G.thumb.gif)
Panasonic MN 1382 connection diagram.