Elektor TAPIR Manual Konstruksi - Halaman 6

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Soldering SMDs

We recommend soldering the

SMD components in the TAPIR

kit one at a time. Due to their

small size, they are easily mixed

up, mislaid, or even lost when

"strewn" on the work surface.

Start by tinning one of the solder

pads. Hold the solder against

the pad and briefly touch it with

the tip of the soldering iron as

close as possible to the pad, so

that the pad is covered by a thin

layer of solder. Then place the

component in position. This is

best done with tweezers. Secure

the component with the tweezers

if necessary, and then briefly

touch the tinned solder pad with

the tip of the soldering iron. The

solder will reflow and form a bond

between the component and

the solder pad. If the component

is properly positioned, the rest

of the component leads can be

then soldered by holding the

solder against the solder pad and

the component lead and briefly

heating the joint. In general, short

soldering times produce clean

and tidy joints.

Elektor "TAPIR" E-Smog Tester Kit | Construction Manual

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Figure 3. Example: one pad of SMD transistor

T1 soldered.

Figure 4. One lead of T1 soldered to the PCB.

Figure 5. All three leads of T1 soldered.

4 – The Panel

Top view and bottom view of the breakout panel holding the 7 PCBs.

Figure 6. Top view of PCB breakout Panel 120354 v2.2 for the TAPIR E-Smog Detector.