Charger diode

Usually, you can Google the number and find the info on that diode, but I did not have any luck with that number. What is the brand and model of your charger? How many amps and volts? Can you take a picture of the diode? Diodes or rectifiers are not very critical except for current, voltage and type case or mount.
 
One of the best places to find them is the company that made the charger in the first place. If they are the large heat sink mounted diodes those are getting hard to find now days. Back in the day they where common but now days there getting harder to find
 
Lots of guys take a couple of the heavy duty diodes out of an old car altinator. Just make sure of your polarity.
 
I had a little Schumacher 10 amp charger since 1976 and managed to hook it up backwards last winter and blow a diode. I took a rectifier diode out of an old 10 si alternator and it's back in business again.
 
I've checked my semi- conductor cross reference, that number doesn't come up. I'm thinking that diode is rated at 70 amps, so be careful you order a diode with enough amperage. You may want to verify the amperage need based on the the charge rating of your battery charger. You can use several diodes in parallel, but it's best to use a single diode with at least enough amperage, as diodes in parallel won't necessarily all carry their fair share of the load causing one or more to let the "smoke".
 
My mig welder came from factory with 2 diodes in parallel.
When a pair went bad, I installed 3 diodes in parallel. Still working. Diodes were mounted on an aluminum heat sink.
 

You guys that understand this stuff make me jealous. I just can't seem to wrap my head around electronics. :cry:
 
Hi, I'm not up on that stuff either. If you put a "diode" in my hand I'm not sure I would know what it was. Someone please take a photo of a diode and post it here so I and others like me can be enlightened. Thanks. Ed Will Oliver BC
 
The main concerns are the amperage rating, the voltage withstand capacity and the ability to dissipate heat, some may require a heat sink. Shop around for battery charger diodes with a current capacity as big as or larger then the charger rating.


https://www.ebay.com/sch/i.html?_from=R40&_trksid=m570.l1313&_nkw=70+amp+diode&_sacat=0

John T
70 Amp Diodes
 
Hi Ed.

A diode is basically a one way valve for electricity. It blocks juice from going through one way so when you put alternating current through you get direct current.

There is a lot more to the subject but that is the basic principle.

Brad Buchanan
 
Hello Ed will,

Some diodes picture for you. Top left is a diode bridge. It takes 4 of the black one to make one of them. The 3 black ones are used as 1/2 wave rectifiers, like phone chargers, and land line phones. Bottom ones are also diodes, used on battery chargers among other uses,

Guido.
cvphoto3729.jpg
 
(quoted from post at 18:05:01 11/25/18) Hello Ed will,

Some diodes picture for you. Top left is a diode bridge. It takes 4 of the black one to make one of them. The 3 black ones are used as 1/2 wave rectifiers, like phone chargers, and land line phones. Bottom ones are also diodes, used on battery chargers among other uses,

Guido.
<img src="https://www.yesterdaystractors.com/cvphotos/cvphoto3729.jpg">
ep, available in all sizes/shapes & ratings from a few volts to 1000s volts and mill-amperes to 100s & maybe 1000s amperes and slow to fast switching speed & various reverse voltage & leakage ratings. Many applications don't care about some characteristics, but in others, critical.
Dsc_0819_sml.jpg
 

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