Hi, Can anyone tell me what kind of sensor it is that is in the photo please. Just cleaning out some parts.
Just in case someone wanted to know what the above item was that was posted late last year, It turns out to be Hall effect sensors mounted inside brass fitting.
Click above the quote link to see the offending component
Had A dig about but cannot find full part number for:
buck/boost chip
Chip2
Also looking for the manufacturer of the inductor, since I have a couple smashed( its 4mm across the ferrite flat sides and about 6.8mm board solder to solder)
I was going to get the inductance from a scope+sig gen. combo.
I'm more interested in a spec sheet to get the maximum working current so I can substitute a more available part.
Thanks
Hi,
Thanks for the quick reply, I had actually tried maxim/TI & Linear and did not get any hits……
But this at least gets me in the ballpark for a design I can use to figure out the inductor
Much appreciated… I just don't know what is going on at the moment….. It's been a rough week……
Hey guys, any idea what this IC is? It's on a cheap $1 boost regulator from China. I've googled the numbers with every combination of words I can think of and nothing...
31 E12Another, unrelated question: I've got an inductor I pulled off an old laptop motherboard. It's labeled "100PF" on the top. I imagine this means 100uH, but I've just never seen that letter combination before. Any ideas?
Thanks!
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Nope, linked part is a uP Watchdog. The part I’m after would be for a boost (step-up) converter with an external switch (at least there’s an external FET connecting the output side of the inductor to ground; the IC seems to connect to the anode of the output diode, but I assume that’s for power). Input voltage range is 2.3 to 5.5V; output is programmed at 5V on this unit, but I imagine the range is 5-12V at least.
Though that Google search is bringing up some interesting results!
Hey guys, any idea what this IC is? It's on a cheap $1 boost regulator from China. I've googled the numbers with every combination of words I can think of and nothing...
31 E12
Same IC, same indentations, PN 31-E12...
Aliexpress
Hey guys, any idea what this IC is? It's on a cheap $1 boost regulator from China. I've googled the numbers with every combination of words I can think of and nothing...
31 E12
Same IC, same indentations, PN 31-E12... Aliexpress
Nice! Now to find a datasheet…
Got a strange one. What is this? It was on a data logger near the Holtek uC. There is a crystal oscillator so I don't think it's that. Just stuck me as strange.
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That's a crystal or ceramic resonator, for sure. See how it connects straight to the two capacitors, which in turn go to ground? It also goes into adjacent pins on the uC.
I've seen them in very similar packages.
A lot of uC's use two crystals: One for the main clock/PLL and another (normally 32.768KHz) for the aux clock or RTC!
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Hey guys, any idea what this IC is? It's on a cheap $1 boost regulator from China. I've googled the numbers with every combination of words I can think of and nothing...
31 E12
Same IC, same indentations, PN 31-E12... Aliexpress
Except that doesn't actually say what it is...
Here's the closest I could find:
http://www.yuantai-tech.com/uploadfile/20130107104303355.pdf
What is this? "Normal" pin-spacing. Might be DDR-tech.
Diode-resistance tested it, 0.6 V from pins 1-4 to pin 5, open circuit in the opposite direction. Diode array with common cathode at pin 5? What would the use be?
Got a strange one. What is this? It was on a data logger near the Holtek uC. There is a crystal oscillator so I don't think it's that. Just stuck me as strange.
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I've used that one... 32.768kHz crystal
(I suppose it could be a different frequency but that's the most likely) I love that package with the see-through glass top...
What is this? "Normal" pin-spacing. Might be DDR-tech.
Diode-resistance tested it, 0.6 V from pins 1-4 to pin 5, open circuit in the opposite direction. Diode array with common cathode at pin 5? What would the use be?
Could be used for overvoltage protection on digital lines, clamping spikes to Vcc rail so preventing latch up of TTL chips. They were quite common on industrial computers and such as protection where input lines could be routed near high current rails or have transients from hot plugging the cards into the system.
Google "7 pin din connector" for various images and suppliers
Google "7 pin din connector" for various images and suppliers
I was hoping someone recognized that exact manufacturers logo. I'm familiar with the wide selection of din connectors.
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Now I have this identify request. This is a used deuterium lamp from a BioRad FPLC . I want to identify the connector because it is really nice and solid feeling. It would come in very handy for some stuff if I can source it for a decent price. My guess is no based on how nice it feels and how expensive the instrument is but it would be good to know either way.
Very interesting. I am just curious why FPLC is using Deuterium lamp - would not modern UV LEDs suffice? Does it need short wave UV like <260 nm to work?
Sorry for dumb question. I just found out what FPLC is from this video:
It is always fascinating to find out about some kind of rare industrial gadget.
Now I have this identify request. This is a used deuterium lamp from a BioRad FPLC . I want to identify the connector because it is really nice and solid feeling. It would come in very handy for some stuff if I can source it for a decent price. My guess is no based on how nice it feels and how expensive the instrument is but it would be good to know either way.
Very interesting. I am just curious why FPLC is using Deuterium lamp - would not modern UV LEDs suffice? Does it need short wave UV like <260 nm to work?
Sorry for dumb question. I just found out what FPLC is from this video: It is always fascinating to find out about some kind of rare industrial gadget.
It is used in a multi-wavelength absorbance detector. This particular module can detect absorbance at four different user selected wavelengths from 190nm-800nm. This is very useful in determining particular compounds as they come off the column. FPLC can range from small analytical grade instruments like the BioRad NGC and the GE AKTA up to enormous industrial grade prep instruments. They are mainly used for the rapid purification of biological mixtures and reactions.
Now I have this identify request. This is a used deuterium lamp from a BioRad FPLC . I want to identify the connector because it is really nice and solid feeling. It would come in very handy for some stuff if I can source it for a decent price. My guess is no based on how nice it feels and how expensive the instrument is but it would be good to know either way.
It's made by
Binder-USA. Looks like their
682 series, but I can't narrow it down without knowing the connector size, termination type, etc.
Now I have this identify request. This is a used deuterium lamp from a BioRad FPLC . I want to identify the connector because it is really nice and solid feeling. It would come in very handy for some stuff if I can source it for a decent price. My guess is no based on how nice it feels and how expensive the instrument is but it would be good to know either way.
It's made by Binder-USA. Looks like their 682 series, but I can't narrow it down without knowing the connector size, termination type, etc.
That is really damn impressive, I would never have guessed that was just a B. It most certainly does look like the 682 binder connector. Thanks a bunch mate!