to-220 150v mosfet options? I need a source

[steveo]

Hey Everyone,

As may of you know i'm selling 150v 24fet pcb; and have run into the issue that ir is out of irfb4115 fets till 2011/01

irfb4115 - no stock till 2011/01
FDP2532 -avaliable from some electronics retailers..

Anything else i can experiment on??

-steveo

 

[ZapPat]

Hi Steveo,

I searched digikey for you and found you some 150V FETs that look even better than IR4115's and are in stock. They are infinion IPP075N15N3's. Rds ON is only 7.5mOhm instead of ~10mohms for the IR part (good!), but I didn't download the datasheet to look at the details. They are a bit more expensive than 4115's though, but they are in stock (only 200 stock so grab them fast if you do want them!). You might find them at mouser or other places, but I did not check.

Good luck!
Pat

 

[steveo]

They look good,

Can we have a mosfet expert confirm that these will work in my 24 mosfet controller boards..

the price is steep.. but it would be interesting to see the results..

if member are willing to dig deeper cost wise .. this seems good based on the resistance rating...

i can probably get 150v @ 150amps with these!!!

-steveo

 

[liveforphysics]

I'm also looking to make a substantial order of some FETs from IXYS right now. I've been hunting around for best prices, and future electronics in my home city here was willing to deal on prices a bit, but still seems really steep.

If anyone has a serious hook-up for IXYS parts, I'm reading to place a $1000+ order myself (for a different FET than what Stevo needs, but still combined it would be a higher volume order for trying to get some wholesale pricing.)

 

[ZapPat]

I looked at the infinion datasheet a bit Steveo, and yes they do look like they will work in your controller no prob. They do have some pros and cons compared to your IR4115's though:

Pros:
+Lower Rds on, 7.5mohms typ vs 9.3mohms typ. BUT check out the resistance at 150oC: 12-15mohm vs 23mohms!!! The infinon is a clear winner here.
+The infinions are better switching devices having less gate charge; they might help your controller be a bit more efficient during PWM.

Cons:
-The 150V rating is measured at 25oC for the infinion instead of at -20oC, which means that the infinions will only resist up to 147V@0oC and 145V@-20oC.
-The infinions have slightly higher thermal resistance (0.5 vs 0.4); this should be more than compensated for because of the lower Rds on though.


Hope this helps you decide on their suitability for you, Steveo. Maybe some other knowledgeable FET guys here will confirm these observations...

Pat

 

[grindz145]

Those Infineon FETS look really nice to me. Whats the price delta compared to the prices you were getting on the 4115s?

 

[steveo]

I'm also looking to make a substantial order of some FETs from IXYS right now. I've been hunting around for best prices, and future electronics in my home city here was willing to deal on prices a bit, but still seems really steep.

If anyone has a serious hook-up for IXYS parts, I'm reading to place a $1000+ order myself (for a different FET than what Stevo needs, but still combined it would be a higher volume order for trying to get some wholesale pricing.)

what fet do you want to get anyways?

 

[liveforphysics]

I'm also looking to make a substantial order of some FETs from IXYS right now. I've been hunting around for best prices, and future electronics in my home city here was willing to deal on prices a bit, but still seems really steep.

If anyone has a serious hook-up for IXYS parts, I'm reading to place a $1000+ order myself (for a different FET than what Stevo needs, but still combined it would be a higher volume order for trying to get some wholesale pricing.)

what fet do you want to get anyways?

I'm looking for a large amount of these guys: They aren't TO220, so they wont work for your application.
http://ixdev.ixys.com/DataSheet/DS100181(IXFK-FX360N15T2).pdf

360amp 150v die.
<4mOhm
1670watt Pd.
Rthjc 0.09 C/W
Rthcs 0.15 C/W

And available in a TO-264 package, which is a package designed from the ground up for use with high currents, which is quite a lot different than the TO-220 packages originally designed only for <20amp applications, but that have since then had the legs beefed up to try and keep up with the improvements in dice that quickly out grew the package.

 

[grindz145]

I don't know what HiperFET(TM) is....but I want it...

 

[ZapPat]

I'm looking for a large amount of these guys: They aren't TO220, so they wont work for your application.
http://ixdev.ixys.com/DataSheet/DS100181(IXFK-FX360N15T2).pdf

360amp 150v die.
<4mOhm
1670watt Pd.
Rthjc 0.09 C/W
Rthcs 0.15 C/W

And available in a TO-264 package, which is a package designed from the ground up for use with high currents, which is quite a lot different than the TO-220 packages originally designed only for <20amp applications, but that have since then had the legs beefed up to try and keep up with the improvements in dice that quickly out grew the package.

These FETs look pretty good Luke, specially that 0.09oC/W thermal spec. This means they must use a *very* big die in there compared to a 4115!

I noticed that the datasheet indicates that it is a preliminay datasheet ("ADVANCE TECHNICAL INFORMATION") - Do you know if the part is in production yet?

There is one strange thing about the thermal specs - The junction-case thermal resistance is actually smaller than the case-heatsink thermal spec. What might explain this partially is that the first spec is a max and the second spec is typical. Otherwise this implies that the die takes up almost all the surface of the copper "tab", and that this internal thermal junction is usually better than the external junction ends up being in the application. Makes me want to get one just to have a look under the epoxy casing to see just how big that die really is!

And I also noticed that the TO-264 package current limitation is 160A continous which surprised me. IR rates their 4110's in TO-220's at 120A continous package limit... and their IR3006's I use (only 60V I know...) are rated at 195A continous package limit!... odd. Comparing the IXYS TO-264 source lead size specs to the IRXXXX TO-220 specs we can see that the TO-264 IXYS part has much more copper on the shorter part of the legs (the important part), so I guess the Rds of the die must play a pretty big part in the lead current handling capabilities. The IXYS part might gain from a few extra source lead bond wires though, since you (and I) use the tab as the drain connection.

Pat

 

[liveforphysics]

They are available, Future electronics actually stocks them locally in Bellvue WA 15mins away from my house. I picked up 12 from there to tinker with (and I'm doing a brushed controller first), but the price in low quanity was $18/fet... Hence why I need to find a wholesale hook-up before paying crazy high prices for a batch in real quanity.

I also thought it was funny about the claimed 160amp package limit as well, because holding one next to a TO-220 makes it clear as day that all the TO-220 legs bundled together don't match 1 leg on the TO-264.

 

[lifepo4ever]

hey steveo just a buy a car controller problem solve !! lol I just kidding