Electronics > Beginners
Mini TS100 soldering iron and current leakage
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wraper:

--- Quote from: stj on June 28, 2017, 02:46:47 pm ---my old weller DS80 used a limiting resistor - it's in the schematics.

--- End quote ---
DS80 is not a soldering station. If you mean WSD 80 or WS 80, there is no resistor.

--- Quote ---also, Hakko 888D has the option by moving a pin on the iron connector.
(with / without resistor)
--- End quote ---
Option? You mean modding the iron and loosing warranty?

--- Quote ---Power consumption   65W (26V)
Tip to ground resistance   <2ohm
Tip to ground potential   <2mV
Heating element   Ceramic heater
Standard tip   Shape-B (No.T18-B)
Cord length   1.2m
Total length   217mm (with B tip)
Weight   46g (with B tip)
--- End quote ---
stj:
DS80 is an 80w desoldering station.
wraper:

--- Quote from: stj on June 28, 2017, 05:57:17 pm ---DS80 is an 80w desoldering station.

--- End quote ---
It's desoldering iron/tool, not station. It must be connected to the soldering station in the first place.
KL27x:
Confirmed, i am an idiot. So problem is AC ripple of 115V. I saw "leak" in title and it was late and i imagined high impedance dc potential.

So if you say wanted to add a ground to your smps, could u "just" change the figure 8 connector (and cord) to the 3 prong kind and then connect that wire from earth to the negative of the dc output? Or do you have to do something to the Y caps, too?

I say "just" because the connector would have to physically fit just right.

Perhaps there's an opportunity for a kit for this type of problem that wouldnt risk voiding UL cert or rause firemarshall/insurer eyebrow.  You get a small black box with a Dell 3 prong cord. Out of the black box you get a very short pigtail figure 8 AC cord and a lone 4mm socket for a ground connection where u can earth stuff? Label to show maximum amps of the cord?

Can this sell like snowcones in july?

I ask this because it is ok to connect a banana plug fly wire to dc side of the output cable yourself, is it not? As long as the smps black box remains sealed and unaltered, is good? (Also, besides insurance concerns, most SMPS are in a case that is ultrasonically welded. So there is no way to close it back up that looks nice). So I imagine if you could make this "kit" people would buy it. Perhaps instead of a pigtail figure 8 cord, it would just have the connector extending out the side, so you can plug it into end end of any SMPS and leave it there, perhaps even glue the two together, effectively changing it from 2 plug AC input to 3 plug grounded.



KL27x:
Also fwiw, i never measured ac ripple on my unearthed 19v zd99 diy iron, but i used it for a year without ever killing a component. But if op can feel a tingle, i wouod say there is problem!

I have measured ac ripple on my hakko 888 after putting 1 Mohm between tip and earth and it is a fraction of a volt.

(I understand this makes the iron less safe in event u solder to live circuit, if this makes it no longer "ESD safe" i am fine with the common use of the terminology; i have no qualm soldering laser diode with this 1 Mohm earth connection... but i dont know if a 1Mohm earth would be sufficient to bring a 115v ripple down to essentially nothing).
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