part id help

[vinceroger69]

hi i am looking at a faulty rope light it has ac going in dc coming out of the power lead the only component in the round plastic housing is a small bridge rectifier part number HY RU 3KBP10 need help with a replacement part is very small about 3/4 inch long and half inch high any help on a replacement part cheers

[selldoor]

Re: part id help

this is the datasheet


Cant find any 3A locally nearest I can spot is 4A but it is quite a bit bigger


http://uk.farnell.com/taiwan-semicon...00v/dp/4084802

[vinceroger69]

Re: part id help

cheers selldoor there my mates rope lights basically the lights consist of 10 meter white constant on led rope lights this bridge rectifier was enclosed in like a torpedo shape molded plastic block (had to cut it open to get inside ) then found this part and only this part so this has 240 volts in then it goes through the bridge converts to dc volts out? then goes to the rope light run. so could i run this of a adaptor like a old laptop one? how can i work out what the output of that rectifier is? and is it 3 amps.cheers vince

[selldoor]

Re: part id help

No- if and only if that is the only component between the mains and the light string then it will be output 230 * 1.41 approx 325VDC.
If size is not a restriction so others are available

http://cpc.farnell.com/taiwan-semico...00v/dp/SC09280

78p - currently free postage and packing

[vinceroger69]

Re: part id help

cheers for that i will enclose it in a project box or something i need to make a capacitor order up so will use the link for that as well cheers any idea how long the free postage handling offer is on for?

[selldoor]

Re: part id help

cheers for that i will enclose it in a project box or something i need to make a capacitor order up so will use the link for that as well cheers any idea how long the free postage handling offer is on for?

I dont think it says but it has been running for a few weeks now.- best get in quick Its normally only free for over £45.
Doesnt affect me as I live nearby.

[vinceroger69]

Re: part id help

hi guys just got a gbu407 rectifier can someone confirm the correct wiring for me as in which pin is ac live and neutral and which pins are the dc live and neutral data sheet here thanks vince
https://cdn.badcaps-static.com/pdfs/...183dcf2f61.pdf

[selldoor]

Re: part id help

Wow thats the big one! 1000v.

Anyway the picture and the diagram of the part on the datasheet shows the pin designation and it is probably on the part itself..
Centre Pins are AC doesnt matter which is which and the DC + is at the end with the slope.

[vinceroger69]

Re: part id help

cheers selldoor did not realize it was 1000 volts should still work ok ? as its only 240v ac in.
is the 1000 volts max voltage it will Handel? just got to figure out which is live and neutral on the actual rope light now somehow.

[selldoor]

Re: part id help

Hi - Yes I think it will be ok -that is the max v.
I am guessing the bulbs are not leds and if they are tiny grain of rice bulbs
are they 150 bulbs at 1.5v so supply 225v would be good.

If that is the case and they are 1.5v filament bulbs I dont think it will matter
which is live and which is negative, BUT I dont KNOW for certain.

[vinceroger69]

Re: part id help

203 white leds about 2 or 3 mm each led so do you think this will work? like this they dont flash or any thing just plug in turn on.
http://www.ebay.co.uk/itm/12m-LED-Ro...-/360771459287

[selldoor]

Re: part id help

Obviously it should work - you have just changed the bridge. BUT if they are leds then I think it does matter which is pos and neg. So you need to wait until someone who knows
chimes in. Did the bridge you took out have any markings - did you take a pic of it in situ.

[vinceroger69]

Re: part id help

no it was broke in bits after removing it it was in like a torpedo of molded plastic ie have mains plug then wire then this torpedo molding with the small bridge rectifier part number HY RU 3KBP10 molded in side then a length of wire onto the rope light on the out side of the torpedo molding plug end stamped ac rope light end stamped dc if makes sence.

[budm]

Re: part id help

Please post the pictures. White LED has forward voltage between 3~3.6V so the configuration of your LED rope must be LED strings connected in parallel.

[vinceroger69]

Re: part id help

bud will try posting pics but they are sealed in like a clear/glitter hosepipe so i dont think a pic will pick up each led i have just looked really closely yes they are in parallel and every ninth on has a resistor.

[budm]

Re: part id help

If you can count the quantity of the LED on each string, then you can figure out how much voltage it will need to forward bias all the LED in the string + the current limiter resistor.