Is it ok to replace SILICON BRIDGE RECTIFIER IC with 4 rectifier diodes.

Thread Starter

Carlos Martínez 1

Joined Nov 23, 2016
32
Hello, a lightning struck near my home and burn some outlets and crashed my CRT Tv, I noticed the fuse meted, replaced it and after energizing it it melt again, looking for the problem I got the D3SB60 was in short(All pins were at the same AC voltage) so I decided to replace it, but happens that in my town there are not D3SB60 nor another rectifier IC, but I have some diodes and well, as the title suggest, I want to replace the D3SB60 rectifier with a 4 diodes arrangement. Is it posible? Any advices or anything to take on consideration? I would be using 4007 diodes(1000 V Maximum Reverse Voltage) and the IC has 600 V as Maximum Reverse Voltage.


Datasheets here:

SILICON BRIDGE RECTIFIER IC

Diodes
 

Reloadron

Joined Jan 15, 2015
7,857
600 PRV 4.0 Amp so yes, you can build a bridge using 4 EA independent diodes as long as it meets or exceeds the specifications of the bridge you currently have.

Ron
 

Thread Starter

Carlos Martínez 1

Joined Nov 23, 2016
32
600 PRV 4.0 Amp so yes, you can build a bridge using 4 EA independent diodes as long as it meets or exceeds the specifications of the bridge you currently have.

Ron
Each diode has 30 A IFSM and the IC has 120 IFSM so it would be Ok to use specifically those diodes?

I have noted every diode value is multiplied by 4 in the IC...so the IC is only an arragement of 4 diodes?
 

Reloadron

Joined Jan 15, 2015
7,857
I would be using 4007 diodes(1000 V Maximum Reverse Voltage) and the IC has 600 V as Maximum Reverse Voltage.
I did not catch that and per crutschow the 1N4000 series are only rated at 1.0 amp so no, you can't use them. The bridge you build must meet or exceed the existing bridge.

I have noted every diode value is multiplied by 4 in the IC...so the IC is only an arragement of 4 diodes?
Yes, 4 diodes in a single package.

Ron
 

phranzdan

Joined Aug 4, 2017
40
Hi: The D3SB60 is a 600 volt 4 amp bridge rectifier. You would need to use individual rectifiers rated at least 600 volts and 4 amps. Other than space limitation, I can't think of another reason why this can't be done.
 

Ylli

Joined Nov 13, 2015
1,092
You can try to find the 1N5552, 53, or 54 locally. Otherwise, Mouser lists the D3SB60-7000 for $1.80, in stock.
 

Tonyr1084

Joined Sep 24, 2015
9,744
I have a D5SBA20 bridge rectifier from an old stereo. It's rated at 100 ~ 600 VAC and 6 amps. If you can get ahold of an old stereo chances are decent you will find a rectifier to fill your needs. Unless you're trying to fix an old stereo with a blown BR (Bridge Rectifier). A quick google search gave me a data sheet for what I have in my scrap bin. I probably have other BR's in my scrap bin but just haven't looked for them. The only reason I have this one on my bench top is because I recently dismantled an old stereo that had a CD player and a dual tape deck.

Scrap is a good source of parts.

[edit] Further investigation into the spec sheet, my BR is rated for 2.8 amps without a heatsink. Just so happens mine is not mounted on a heat sink, so my scrap system was obviously operating at no greater than 2.8 volts. The only reason for scrapping this unit is because the tape decks failed due to old drive belts, and the same was true of the CD player. The reception was horrible - and I had no real use for the unit anyway. So I scrapped it. Now I have MORE junk to hang onto just in case I need something later in life. (no, not like a new kidney)
 
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