How to use Shape J + Examples
Shape J differs from Shape B and I by bending the tip end and is capable of soldering by applying the tip in 2 ways: face and point. It still has a conical/rounded tip and is used for drag soldering and correction of bridging.
Soldering Tiny Chip Parts (0603)
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Lay down the long end of the tip to the board. *Photo shows T30-J with an N2 system iron for pre-heating effect. NOTE: Some IC are specified by the manufacturer not to be touched on the electrode by tip end. |
Drag Soldering
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Lay down the long end of the tip and drag the tip slowly. Note the timing to feed solder to prevent excess solder. NOTE: Apply flux to the leads and land pads before soldering. It helps to prevent problems such as solder bridges. |
Correcting Bridging
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If the bridge amount is small Stand the tip on the pointed end and drag the tip slowly through the solder bridge. NOTE: Operate with a clean tip |
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If the bridge amount is large Lay the long end of the tip (either parallel or perpendicular) on the bridge and drag the tip outwards slowly. NOTE: Operate with a clean tip |
Soldering at Narrow Pitches
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The fine pointed end of shape J enables easier soldering on narrow workpieces. In addition, the bent tip allows you to solder at the same angle as shape I (angle B) while maintaining a more natural grip angle (angle A), reducing hand fatigue. |