Name That Diode

sic ,sorry pal cant figure out, may be the suppliers are still existing they may help you out.

I'm certain that a two-lead device is not a diode bridge but just a single diode with no particular characteristics which would need to be had in a replacement. Any diode with the current handling and power dissipation capabilities that are required will suffice.

There are no NEC (National Electrical Code) requirements for in-line fuses or other protection devices for appliances unless dictated by UL (Underwriters Laboratories) or other fire safety certifying agency. Any device which is likely to cause a fire will typically have in-line fuses, and they generally have been required by UL, or the manufacturer had the foresight to put one in the circuit. Almost any device which carries a significant current can catch fire (or at least let smoke out of it) during failure, the current level of which may not be even as much as the entire device may draw.

Yes, you're right, this is a single diode from a diode bridge built from discreet components. I misspoke.

Sounds like a lot of wondering for little result. It blew up, so replace it .. :)

Might be worth checking the motor brushes while you are at it.

Whack a 240v 10A jobbie in there and a fuse if you want and see what happens.

Use two parallel 1N5408 diodes X 4 to make a new bridge and it should work.

For standard rextifying purposes, it is not very critical wich Diode you choose. Of course, it needs to meet current and voltage requirements, but other than that, there's not much to worry about.

I do want to suggest that you replace ALL FOUR diodes in the bridge, or just put in a bridge. Here again, check out voltage and current.

Good Luck !

I don't see any polarity marking on the package. It might not be a diode. Could it be simply a thermal protector?

You claim that the motor is DC but it could be a universal motor like the ones used in most drills. Does the motor have permanent magnets or does it have a wound armature? Is it indicated on the motor that it is a DC motor?

As far as fusing, if it is made to operate from AC home supply, it doesn't need its own fuse. A thermal cut-off is enough.

Good luck.

Nope, definitely a diode. There were four of them before the blow up, this is the only one that survived. I'm just curious as to what it is. My plan is to just stick a bridge in there along with an inline fuse to replace the OEM stuff.

I know the motor is DC from the data plate and conversations with the manufacturer. No issues there.

If this diode is one from a bridge, the others should be identical.Check them for identification markings.

HTRN

lol, the rest are smoke. I mean seriously, we're talking small fire. I can re-design the circuit with little difficulty but I am surprised that there are no markings and was curious. Oh well, guess we'll never know.