Author Topic: What's this please? (Component Advice)  (Read 560319 times)

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Offline TerraHertz

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Re: What's this please? (Component Advice)
« Reply #275 on: March 08, 2013, 01:50:21 pm »
Ow! That's not good at all. Custom analog, proprietary, and probably no public data at all. Darn it.
That leaves just observing what it does, then looking for a way to replace it with something easily available.
Where 'it' would probably be easiest if I ignore the IC, and consider that whole rider board as a black box.

Thanks though.

 
Collecting old scopes, logic analyzers, and unfinished projects. http://everist.org
 

Offline midasgossye

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Re: What's this please? (Component Advice)
« Reply #276 on: March 11, 2013, 06:31:10 am »
I've been checking too on the controller for the oven, no luck this time. |O
« Last Edit: March 11, 2013, 06:39:46 am by midasgossye »
 

Offline ddavidebor

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Re: What's this please? (Component Advice)
« Reply #277 on: March 15, 2013, 08:24:53 pm »
I've got a component that I would like to figure out what it is  =0).

Little rectangle notched on one side.   tapered back top.   and stamped with FIOY  (not sure if F10Y or FIOY) on it.


check with multimeter if it is a diode.
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Offline firewalker

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Re: What's this please? (Component Advice)
« Reply #278 on: March 16, 2013, 12:48:33 pm »
Please, remind me the name of this npn/pnp voltage amplifier configuration.



Alexander.
« Last Edit: March 17, 2013, 07:39:19 am by firewalker »
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Offline kizzap

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Re: What's this please? (Component Advice)
« Reply #279 on: March 16, 2013, 11:30:10 pm »
Please, remind me the me of this npn/pnp voltage amplifier configuration.



Alexander.

Is it just a non-inverting amplifier of some form?

-kizzap
<MatCat> The thing with aircraft is murphy loves to hang out with them
<Baljem> hey, you're the one who apparently pronounces FPGA 'fuhpugger'
 

Offline nicknails

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Re: What's this please? (Component Advice)
« Reply #280 on: March 17, 2013, 01:38:55 am »
Looking for any info for smd  component marked "K4A". It is most probably some kind of switching regulator IC.
Two of those are in power supply part of "AR.Drone" quadcopter that I'm trying to repair.


(image taken from some Russian forum)

It's an AZ431 made by BCD Semiconductor.  Shunt mode regulator.

http://www.bcdsemi.com/Upload/Product%20Doc/Datasheet/AZ431-B%20D3.3%20121205.pdf
 

Offline dr_p

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Re: What's this please? (Component Advice)
« Reply #281 on: March 18, 2013, 12:19:49 am »
package seems to be DFN-8, so the 431 varity doesn't fit, plus the OP mentioned something about being directly connected to an inductor.
 

Offline xygor

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Re: What's this please? (Component Advice)
« Reply #282 on: March 18, 2013, 09:41:59 pm »
Here's an IC that is some kind of switch-mode controller. It's on an inverter-type microwave oven PCB which I'm interested in adapting as a HV power supply. Depending on whether the circuit is suitable.
So far, no luck searching for the part number: AN9DB07SB 929S6E02

The oven is a Panasonic NN-SD686S, but I've seen this identical inverter PCB used in two other different Panasonic microwave ovens, so I'm hoping it's going to be common 'street findings' in future.

Full story with teardown pics here: http://everist.org/tales/20130308_microwave_hacks.htm
No help on the IC, but I have some answers to other questions you posed at the linked site.
Some Litz wire is available here:
http://www.surplussales.com/Wire-Cable/LitzWire.html

And in the transformer, the extra magnetic path (the one with the wide gap) introduces a controlled amount of leakage inductance by creating flux that does not couple to the secondary.  It saves having an extra inductor component in series with the primary winding since it is incorporated into the transformer.  It's probably a resonant converter.


 

Offline Mike Warren

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Re: What's this please? (Component Advice)
« Reply #283 on: March 25, 2013, 05:29:12 am »
I've got a component that I would like to figure out what it is  =0).

Little rectangle notched on one side.   tapered back top.   and stamped with FIOY  (not sure if F10Y or FIOY) on it.

Probably too late to help you, but it looks like an ICPF10 400mA semiconductor fuse.
 

Offline BobbyK

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Re: What's this please? (Component Advice)
« Reply #284 on: March 30, 2013, 02:01:55 am »
Please, remind me the name of this npn/pnp voltage amplifier configuration.



Alexander.


IMHO looks like a Sziklai pair. Sometimes also called a complementary darlington - because it uses one PNP and one NPN. You can read up here:
http://en.wikipedia.org/wiki/Sziklai_pair
 

Offline Hardcorefs

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Re: What's this please? (Component Advice)
« Reply #285 on: April 01, 2013, 08:14:46 am »
Looking for any help on the following parts:

2160 7A1
16UN1801 0612 G

They are part of a buck voltage converter around a MAX8538

Thanks
 

Offline Hardcorefs

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Re: What's this please? (Component Advice)
« Reply #286 on: April 01, 2013, 11:41:20 pm »
OK
 I found the  16UN part, seems philips make TWO parts with exactly the SAME part number

One is SOT23 which is only a single part, and it was this showing up in searches......

So I just need to know the other part.
 

Offline c4757p

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Re: What's this please? (Component Advice)
« Reply #287 on: April 01, 2013, 11:48:29 pm »
The other one is a MOSFET.
No longer active here - try the IRC channel if you just can't be without me :)
 

Offline Hardcorefs

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Re: What's this please? (Component Advice)
« Reply #288 on: April 04, 2013, 10:01:42 am »
Yep... that I know , I was looking for a part or manufacturer ref....
 

Offline Hardcorefs

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Re: What's this please? (Component Advice)
« Reply #289 on: April 07, 2013, 04:19:17 am »
K got it!!!!

HAT2160H-EL-E  Renesas Technology Corp
 

Offline ResR

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Re: What's this please? (Component Advice)
« Reply #290 on: April 09, 2013, 03:19:16 pm »
Look what I found in a dumpster-dive.  :o A set of 5 serious diodes D2-25-4 and D2-25-7. Any idea how much current and voltage it can rectifier? These things are biggest semiconductors I ever hold in my hand with M-12 bolt to connect to the heatsink.
« Last Edit: April 09, 2013, 03:21:15 pm by ResR »
 

Offline SeanB

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Re: What's this please? (Component Advice)
« Reply #291 on: April 09, 2013, 04:09:51 pm »
Well, they are Russian made, so probably 25A units that can be used as room heaters.......
 

Offline ResR

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Re: What's this please? (Component Advice)
« Reply #292 on: April 09, 2013, 04:26:34 pm »
Perfect.  :-DD It is sub-zero cold here for many months from October to March/April  :P Hmm... On one russian site was written that it's 250A 400V (?) although someone from my work said too that it maybe is just 25A diodes._
 

Offline G7PSK

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Re: What's this please? (Component Advice)
« Reply #293 on: April 09, 2013, 05:04:44 pm »
I had a mig welder that had three similar looking diodes but UK made that was rated to 200 amps the transformer was three phase.
 

Online PA0PBZ

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Re: What's this please? (Component Advice)
« Reply #294 on: April 09, 2013, 05:14:24 pm »
Keyboard error: Press F1 to continue.
 

Offline ResR

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Re: What's this please? (Component Advice)
« Reply #295 on: April 09, 2013, 06:48:45 pm »
eBay?  ???  I don't trust that site for accuracy. I'm planning to make a decent PSU from parts i have in a basement or in my mind, my cardboard box transformer PSU burned out the compact bridge rectifier again dispite the forced cooling of the fan while testing a small schematic, 25A should be fair enough, but 250A is better chances to survive accidental shortcuts. Although it is similar or same as the one in that link._
« Last Edit: April 09, 2013, 06:50:16 pm by ResR »
 

Offline cubemike99

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Re: What's this please? (Component Advice)
« Reply #296 on: April 15, 2013, 01:33:00 am »
Any info on a TO-3 package labeled:

    M
10243
 8439

? The M looks like the Motorola logo, and the device is on a 48V 3A PS. Thanks for the help.
 

Offline mikes

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Re: What's this please? (Component Advice)
« Reply #297 on: April 15, 2013, 11:12:19 pm »
Any info on a TO-3 package labeled:

    M
10243
 8439
Probably a house labeled pass transistor. But Lambda also used dual rectifiers in a TO-3, so you should find a schematic or draw out the circuit. If it's a pass transistor, it's probably non-critical, just make sure the V/A ratings are big enough. I used some 2N6284s to fix a Lambda 24V/3A linear.
 

Offline kizzap

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Re: What's this please? (Component Advice)
« Reply #298 on: April 29, 2013, 05:26:36 am »
I don't really need any help with identification...more...just thought it was a funny brand...



-kizzap
<MatCat> The thing with aircraft is murphy loves to hang out with them
<Baljem> hey, you're the one who apparently pronounces FPGA 'fuhpugger'
 

Online orbiter

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Re: What's this please? (Component Advice)
« Reply #299 on: April 29, 2013, 07:56:43 am »
I've not seen that make before either, just another Taiwan band I guess. I'd rather them be called Su'spect, though, because at least then I'd know what I was dealing with :)

I'm assuming you already know the two in the centre of shot are failing (tops bulged)


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