Name that Bridge Rectifier lol

Zerotolerance · Feb 15, 2014

Having a hell of a time trying to locate this specific Bridge Rectifier above the large blue cap. Any help (at least brand name) would be greatly appreciated.

ronsimpson · Feb 15, 2014

Fairchild DF10M or [URL='https://www.digikey.com/product-detail/en/DF08M/DF08M-ND/977157']DF08M[/URL]
ComChip DF210-G or [URL='https://www.digikey.com/product-detail/en/DF10-G/641-1340-5-ND/2074805']DF10-G or [URL='https://www.digikey.com/product-detail/en/DF04-G/641-1338-5-ND/2074803']DF04-G[/URL][/URL]

It looks like it is off the power line so it should be high voltage. Are you talking about the "J6E" parthttps://www.digikey.com/product-detail/en/DF210-G/641-1343-5-ND/2074808
https://www.digikey.com/product-detail/en/DF10M/DF10M-ND/977159

JimB · Feb 15, 2014

It is a bit difficult to see the exact pin spacing in your photo, but I think that one of these would be an equivalent:

https://uk.farnell.com/jsp/search/b...skipParametricAttributeId=&prevNValues=204537

That is a link to a UK site, but I think that they appear in the USA as Element14.

JimB

Zerotolerance · Feb 15, 2014

pin spacing is 5mm and yes J6E.

This is the PSU PCB out of a Siemens 4700 Power Meter.

Zerotolerance · Feb 15, 2014

Also need help finding this Diode. I believe it is a TVS Diode but uncertain. The identifying marks on it are 3SM 66 with a horizontal line above each 6 which makes me think they are really 9's?

Zerotolerance · Feb 15, 2014

My issue with the bridge rectifier is how do you know its only 1AMP? Because the fuse is a 2Amp fuse? I think I will go with a 1.5A Bridge rectifier

KeepItSimpleStupid · Feb 15, 2014

the OP said:
My issue with the bridge rectifier is how do you know its only 1 AMP? Because the fuse is a 2Amp fuse? I think I will go with a 1.5A Bridge rectifier

I typically rate fuses at 2x the required current of the device on the primary side. This allows the inrush to pass. Afterall, it is short-circuit protection and there is a time-currrent curve to go with it.

Nigel Goodwin · Feb 16, 2014

Zerotolerance said:
My issue with the bridge rectifier is how do you know its only 1AMP? Because the fuse is a 2Amp fuse? I think I will go with a 1.5A Bridge rectifier

Because almost all of that style bridge rectifier are 1A, for larger ratings different case styles are used.

tronitech · Feb 16, 2014

When you compare the bridge to the size of the transistor it might not even be 1A?

An awful lot of 1A bridges are re-encapsulated (is that even a word) 1N400X series diodes.

JimB · Feb 16, 2014

If the bridge rectifier is faulty, rather that struggling to find a replacement, you could just replace it with four 1N4007 diodes.

JimB

Zerotolerance · Feb 16, 2014

Ordered a couple of these : https://www.fairchildsemi.com/ds/DF/DF04M.pdf
Fairchild DF04M

Nigel Goodwin · Feb 17, 2014

tronitech said:
When you compare the bridge to the size of the transistor it might not even be 1A?

An awful lot of 1A bridges are re-encapsulated (is that even a word) 1N400X series diodes.

Which would give a 2A bridge

Name that Bridge Rectifier lol

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