hybridfree/eevblog-posts huggingface dataset:
Help identify this chip? EM1701G - Page 1
Forum section: electronics / projects

author: MattHollands
author_rank: Frequent Contributor
timestamp: November 10, 2019, 07:41:32 pm
content: Hi,I was playing around with reverse engineering a broken PIR activated LED lamp and I came across a chip I cannot find a data sheet for. My best guess is that it is a constant current regulator to keep the LEDs at a constant brightness, but I want to know for sure. Attached are photos of the board, the chip and my reverse-engineered schematic.

author: MattHollands
author_rank: Frequent Contributor
timestamp: November 18, 2019, 02:34:55 am
content: No suggestions? Does anyone recognise the logo on the chip?

author: SiliconWizard
author_rank: Super Contributor
timestamp: November 18, 2019, 03:41:58 am
content: Can't find this reference anywhere... but you could always ask those guys:https://www.luceco.com/uk/page/contactAnyway, I think you got it right that it must form a constant current sink.Judging from your schematic, one possible option would be that this is actually a depletion MOSFET, used as a constant current sink, with the 22 ohm resistor setting the constant current.You can have a look at this for more info:https://www.infineon.com/dgdl/Infineon-Application_Note_Applications_for_Depletion_MOSFETs-AN-v01_00-EN.pdf?fileId=5546d4624cb7f111014cd63d1a197d94Edit: I thought suggesting a depletion MOSFET was kind of fancy and an opportunity for some to learn about them. One other, probably more obvious possibility is that the chip would be an adjustable linear regulator, similar to an LM317 or so. Note the typical ref. voltage of linear regulators is most often 1.25V or less; that would mean here, a current of ~57mA or less. Sounds a bit on the low side for a LED lamp, but I don't know about its rated power at all; it can be perfectly possible: 18 LEDs in series, with say ~3V Vfd each, that's 54V => ~3W. Not sure why they went with a ~200V supply though, it looks largely overkill here? (But maybe it's a basic design to accomodate for many variants of lamps with more LEDs.) Note that a LM317 would not cut it here. You'd need to use a regulator that can take at least 150V or so. A possible replacement candidate would be the TL783. (Additional edit: searches on both Mouser and Digikey gave the TL783 for >= 150V input voltage regulators, but the datasheet says 125V, so we'd probably have to look elsewhere. There are some regs that could be a fit, but not many at all.)The benefit of a linear reg over a depletion MOSFET is that the set current will be easy to set and with little variability from one device to another, so I'd lean towards this.One additional thought - here the regulator (or transistor) would have to dissipate around 150*57e-3 ~8.6W. This thing must be getting pretty hot while ON. (If you're sure about the 200V supply though.)
[Solved] Help identify this component - Page 1
Forum section: electronics / projects

author: spilihps
author_rank: Regular Contributor
timestamp: March 17, 2018, 04:37:58 pm
content: Hello!This:https://ibb.co/gcQsvHTrying to figure out what this component is.The only thing i know is that pin 1 is connected via a resistor to the gate of a mosfet.Any ideas? Not sure if it should be read as B 11, or if the lines are not "1"?

author: MattHollands
author_rank: Frequent Contributor
timestamp: March 17, 2018, 06:17:23 pm
content: http://www.s-manuals.com/smd/b1Looks most likely to be a PNP transistor.

author: spilihps
author_rank: Regular Contributor
timestamp: March 18, 2018, 06:34:06 pm
content: Thank you very much. Seems to be the right one.In all luck, However, it was not the fault.
RESOLVED - Help Identify this Component - Feedthru RelAY? - Page 1
Forum section: electronics / projects

author: NY2KW
author_rank: Regular Contributor
timestamp: December 21, 2023, 10:19:04 pm
content: I am repairing an old meter test set for a Collins Radio power supply. The test set was likely built in the 1960 - 1970's. It has 10 meters monitoring all aspects of the power supply, eg hi B+, lo B+, filament voltages and current under simulated loads (via very big wire wound resistors) or with an actual transmitter as the load.There is a component that looks like a feedthrough capacitor but its functioning like a simple SPST NC. Unpowered it shorts out a string of resistors to ground I assume as a bleeder safety in case the power supply bleeders fail for any reason. When the meter test set is powered up with the AC mains, this little feedthrough component disconnects the resistor chain from ground.I think its working intermittently and sometimes not opening the ground lead when powered on. Does anyone recognize this to help me search for an original replacement?TIA, Jerry

author: Wolfram
author_rank: Frequent Contributor
timestamp: December 22, 2023, 02:49:51 am
content: That's a Gigavac ceramic vacuum relay, these can do serious voltage and current but at a cost.https://www.mouser.fr/datasheet/2/657/sensata_g41c_series_spdt_high_voltage_relay_datash-3104309.pdfThe flange doesn't serve any electrical purpose so it's not acting like a feedthrough, it's just for mounting.

author: NY2KW
author_rank: Regular Contributor
timestamp: December 22, 2023, 12:39:29 pm
content: Thank you, that's really interesting. There is about 1kV across the resistors. The power supply (516F-2) is all DC loads, so I don't know why they went with an RF rated relay. Maybe that's what they had easily available. I was told by some ex-Collins engineers this was custom made at Collins in their service department, but others have said i's just someone's homebrew. Regardless, the quality of the build and layout are quite professional.Merry Christmas and Happy New Year!Jerry NY2KW
Help identify this connector - Page 1
Forum section: electronics / projects

author: madworm
author_rank: Frequent Contributor
timestamp: May 13, 2012, 12:52:42 pm
content: This is the power receptacle of my old digital camera (Pentax S5z, about 2005). It loves to eat Li-Ion batteries. I'd like to power it with a wall-wart when at home and don't feel like purchasing the original power adapter (50 bucks).So far I've scanned all Hirose datasheets, but it doesn't seem to be in there.What I need is the connector that fits into the one shown.

author: amyk
author_rank: Super Contributor
timestamp: May 14, 2012, 09:15:52 am
content: Do you have any dimensions/details on the configuration of the connector?At worst it looks like you might be able to fabricate your own out of two flat prongs and a rectangular chunk of plastic.

author: madworm
author_rank: Frequent Contributor
timestamp: May 14, 2012, 10:26:22 am
content: The outer dimensions are about 7mm x 4mm (front face), the inner rectangle is about 5mm x 3mm. As far as I can see without taking the camera apart completely, it seems to be an SMD component. It's a '90°' board-edge connector with two visible contacts, maybe with a locking mechanism.

author: metalphreak
author_rank: Frequent Contributor
timestamp: May 14, 2012, 05:22:37 pm
content: Most of the digital camera companies have their own proprietary connectors for the DC jack. No good reason for it other than to hold you hostage to buying $50 AC adaptersBest option is to buy a cheap adapter from hong kong. If the power supply is rubbish you can nick the cable and connector off it for connection to a better supply.

author: FreeThinker
author_rank: Frequent Contributor
timestamp: May 14, 2012, 06:03:20 pm
content: The main problem may be that Pentax is not Pentax anymore. They were taken over by Hoya and then the camera division sold on to Ricoh so buying from the OEM will be very expensive as the product is essentially obsolete.I picked up a very nice point and shoot 10m pixel camera for not very much as new old stock was disposed of.
Help Identify this part: SOT-23 "GB" - Page 1
Forum section: electronics / projects

author: krivx
author_rank: Frequent Contributor
timestamp: April 10, 2023, 07:27:10 pm
content: I have removed the following as part of a repair and I would love to find a part number or datasheet. I suspect a jellybean transistor, board designator was "Q".I think this is "GB", but I do not know if the "accent" over the B means anything. It could also be "G13"...

author: wraper
author_rank: Unknown
timestamp: April 10, 2023, 07:36:59 pm
content: Most likely it's actually6B which usually is used on BC817-25.

author: krivx
author_rank: Frequent Contributor
timestamp: April 10, 2023, 07:53:38 pm
content: That's probably it, thanks.

author: AndyBeez
author_rank: Frequent Contributor
timestamp: April 10, 2023, 08:01:49 pm
content: Introducing theSMTSMD number finder.https://smd.yooneed.one- Other lookups are available.There are some 20 SMD's listed with the "GB" part number. A SOT23 packaged part is a likely a 2N6619 NPN transistor. But other SOT23s are linear voltage regulators. Check your circuit for clues as 'Q' can meanany semiconductorto the layout dude.Happy hunting.EDIT - Just had a thought. In computer notation a bar over a capital means lowercase. So this might be "Gb"?
Help identifying 3-pin device - Page 1
Forum section: electronics / projects

author: iXod
author_rank: Frequent Contributor
timestamp: January 03, 2021, 10:35:41 pm
content: Marked with:ST Micro logo0236STH-10012No other markings. It measures as a TO-218 package.These markings don’t bring up anything in a search. Anyone have an old ST catalog?Thanks, andHappy New Year!

author: Niklas
author_rank: Frequent Contributor
timestamp: January 03, 2021, 11:07:09 pm
content: Could it be an ST equivalent to MJH10012?

author: bob91343
author_rank: Super Contributor
timestamp: January 04, 2021, 06:08:28 am
content: Have you tried contacting the factory?
Help identifying 5 & 7 pin connectors - Page 1
Forum section: electronics / projects

author: David_AVD
author_rank: Super Contributor
timestamp: April 16, 2014, 05:10:37 am
content: Does anyone know off the top of their head what brand / series these connectors are?They mount from the front (rear nut) and have a male threaded bush that the mating plug (or dust cap) screws onto.I can't see any markings or clearly get to the back of them, except to see that they have solder cup terminals.

author: miguelvp
author_rank: Super Contributor
timestamp: April 16, 2014, 05:47:14 am
content: They look like DIN connectors close to 240 degrees (60 degrees between pins) but nope. The other one is 72 degrees apart strange for DINsWhat are they attached to?

author: David_AVD
author_rank: Super Contributor
timestamp: April 16, 2014, 06:03:18 am
content: Definitely not DIN sockets. They are part of some custom equipment that a client needs new cables for.

author: pickle9000
author_rank: Super Contributor
timestamp: April 16, 2014, 06:39:15 am
content: eco mate by amphenol maybe?Do you have a side image?

author: David_AVD
author_rank: Super Contributor
timestamp: April 16, 2014, 06:44:19 am
content: Just looked up the Amphenol Eco-mate. Not it, but thanks for the suggestion.No other pictures sorry.Might have to try and track down who made the item and see if they will tell us what they are.

author: miguelvp
author_rank: Super Contributor
timestamp: April 16, 2014, 06:44:45 am
content: Would have helped if you mentioned it was a waterproof system or even aviation.Do these match?If they do, they are IP68 5 pins/7pins waterproof dustproof connectors

author: amyk
author_rank: Super Contributor
timestamp: April 16, 2014, 12:18:52 pm
content: One of these?http://www.amphenol.com.au/catalogue/ms97series.pdf

author: David_AVD
author_rank: Super Contributor
timestamp: April 17, 2014, 08:22:30 am
content: Quote from: miguelvp on April 16, 2014, 06:44:45 amThe connectors are not on a piece of mission critical gear. I have no idea why they chose them originally.Part of the issue is that I have only seen the plug in a not very close-up photo.The second picture looks like a match for the socket. I'll go from there. Thank you. :-)

author: miguelvp
author_rank: Super Contributor
timestamp: April 18, 2014, 07:07:18 pm
content: David, you might want to look at this:https://www.eevblog.com/forum/buysellwanted/fscheap-sale-the-15-sets-waterproof-plastic-connector/Nevermind, 6 pin
Help identifying a Bourns resistor network - Page 1
Forum section: electronics / projects

author: orion242
author_rank: Unknown
timestamp: March 22, 2014, 02:14:07 am
content: Hello gents,I have a Bourns SOIC-14 resistor network I'm trying find a source for. I can't seem to track down the part number or the configuration as I have measured.Marking on line one NBS14FLF, second line is 6-103 which I assume indicates all 10k resistors, third line is the logo and date code 0822.Their 2NBS14 is the closest match on the part/marking number I can find, but this is not an isolated setup. All pins are connected. Is this some custom or do I have the configuration all wrong? This model matches all my measurements testing almost every combination.The fact I have 20k resistors in my equivalent drawing, makes me think I have the configuration wrong.Thanks

author: SArepairman
author_rank: Frequent Contributor
timestamp: March 22, 2014, 03:36:23 am
content: jjust wondering, why do you need it? is that used in some kind of test equipment?it seems like a really odd network

author: Vgkid
author_rank: Super Contributor
timestamp: March 22, 2014, 03:41:30 am
content: It looks like an R2R resistor network, except those dont have test points.

author: orion242
author_rank: Unknown
timestamp: March 22, 2014, 03:54:59 am
content: not test points, my quick and dirty way to show the pins 9-14

author: orion242
author_rank: Unknown
timestamp: March 22, 2014, 04:00:27 am
content: Quote from: SArepairman on March 22, 2014, 03:36:23 amI'm still dissecting the rest of the circuit. I'm pretty sure the values are deliberate. They are used to translate 4 binary inputs into voltage levels that would correlate to 4 bits on a A2D. A2D is at least 8-10bit, so these are higher bits. This is my guess at the moment at least..Pins 1-4 are input, 5 & 6 5v, 7 & 8 gnd, 8 thru 13 are N/C, 14 is output to opamp.

author: SArepairman
author_rank: Frequent Contributor
timestamp: March 22, 2014, 04:29:52 am
content: Quote from: orion242 on March 22, 2014, 04:00:27 amwait, your saying this thing is part of some kind of discrete A2D? What era is this thing from?

author: orion242
author_rank: Unknown
timestamp: March 22, 2014, 04:36:28 am
content: Quote from: SArepairman on March 22, 2014, 04:29:52 amWell the chip is from 08.... someone must have bought a crapload at once, this is a current unit....It's not a discrete A2D. Its s input expander, adding discrete digital inputs to a analog input that is industrial. $hitloads of input protection already on the frontend of the final A2D.
Help Identifying a Chip (FET from a Motor Driver) - Page 1
Forum section: electronics / projects

author: gremlin
author_rank: Newbie
timestamp: December 07, 2017, 05:50:10 am
content: Hello all,I was needing some help identifying a SMD FET that is on a Motor Driver Board.The Markings are:6500GA6F1TAnd it has an "A" Logo inside a Circle that I couldn't identify.Image Attached.

author: gremlin
author_rank: Newbie
timestamp: December 07, 2017, 01:52:46 pm
content: Thank You.That was it. AON6500 N-Channel MOSFET.
help identifying a component - Page 1
Forum section: electronics / projects

author: grouchobyte
author_rank: Regular Contributor
timestamp: March 06, 2017, 12:09:06 am
content: I've never heard of Micro-CeramX Technology, but I have a reel of this part ( image posted below). I googled the part number and zilch comes up.My best guess is 330nF 250V 1825. Anybody have an idea of the dielectric?Thanks@grouchobyte
Help identifying a component probably a FET or SSR  Markings 3J 2n W - Page 1
Forum section: electronics / projects

author: Jester
author_rank: Frequent Contributor
timestamp: July 05, 2024, 08:08:15 pm
content: Does anyone know what this part is?Most likely a FET or SSR used as an output driver on an industrial type board. O/P is rated 30V, 2AI'm interfacing to it and just want to know what I'm dealing with, manual is vague.

author: exmadscientist
author_rank: Frequent Contributor
timestamp: July 05, 2024, 10:41:45 pm
content: Pretty sure that's just a fancy marking on a bog standard BC858A.

author: Jester
author_rank: Frequent Contributor
timestamp: July 05, 2024, 11:49:43 pm
content: Quote from: exmadscientist on July 05, 2024, 10:41:45 pmBC858A is a 3 pin SOT-23 package. The image I posted already shows that the SOT-23 device is a BAV99, it's the other part (6 pin) circled in yellow with the 3J 2n W marking that I'm trying to figure out
Help identifying a crystal oscillator - Page 1
Forum section: electronics / projects

author: rob.manderson
author_rank: Regular Contributor
timestamp: June 19, 2016, 05:26:21 pm
content: Well, it's pretty well identified on the can - the problem is I can't find anything on line about it (like pinouts, working voltage etc).I acquired 5 100 Mhz crystal oscillators - 14 pin dip form factor but only pins in the 1, 7, 8 and 14 positions. The printing on the can is Cardinal LM 1400E 100 MHz. Tried the obvious (pin 1 as o/c or en/dis able, pin 7 as ground, pin 8 as output and pin 14 as VCC - 3.3 volts initial guess). Can't see any output but draws about 400 mA which seems very high. Since the current drain seemed high I haven't tried 5 volts or higher.I found the Cardinal website but could find nothing about LM 1400E on there. Any ideas?Rob

author: dadler
author_rank: Unknown
timestamp: June 19, 2016, 06:42:48 pm
content: Maybe this is similar?http://www.gedlm.com/DataSheets/LM1400.pdf

author: uncle_bob
author_rank: Unknown
timestamp: June 19, 2016, 06:59:13 pm
content: HiThe data sheet cited above is a pretty good guess. The fact that you get 400 ma strongly suggests you have the supply hooked up backwards.One comment on the data sheet:The supply is either -5.2 to a supply pin, case to ground *or* +5.2 to supply pin, case to ground. The sheet sort of suggests that you hook it up with -5.2 to one pin and +5.2 to the other .... not a good idea.If it is PECL (per the data sheet), you may not see anything on the outputs until you terminate them with a load resistor.Bob

author: PA0PBZ
author_rank: Super Contributor
timestamp: June 19, 2016, 07:04:24 pm
content: Quote from: uncle_bob on June 19, 2016, 06:59:13 pmBut... the E suggests that VCC is pin 14 and max current is 140mA @ 5V. I guess you can try to reverse the supply but I don't have a lot of hope it will work.

author: uncle_bob
author_rank: Unknown
timestamp: June 19, 2016, 07:20:36 pm
content: Quote from: PA0PBZ on June 19, 2016, 07:04:24 pmHiThe E on the part may not correspond to the E pinout on the data sheet. The ECL pinouts listed are the next set to run through if the normal CMOS pinouts have not got the part working.Bob

author: rob.manderson
author_rank: Regular Contributor
timestamp: June 19, 2016, 08:23:40 pm
content: Thanks. It turns out that it does indeed follow the E pinouts in that data sheet - buggered if I know why it was drawing 400 mA yesterday when it's drawng about 130 mA today. But it was necessary to load the output as commented upon - for test purposes I've run two 510 ohm resistors in series from Vcc to ground and connected the output to the junction. And there it is, a nice 100 MHz sine wave on the 'scope - which goes to show how deceptive the 'scope can be - lots of nice odd harmonics on the Spectrum Analyser - out to 1.1GHz. I think my simple comb generator will be easy to finish now!

author: PA0PBZ
author_rank: Super Contributor
timestamp: June 19, 2016, 08:26:01 pm
content: Weird stuff happensGood that you have it running now!
Help identifying a mystery chip B062140 - Page 1
Forum section: electronics / projects

author: chrisgreening
author_rank: Newbie
timestamp: July 06, 2023, 10:47:47 am
content: It's part of a wireless power-charging PCB.I can find one of the chips - the JW7951. But I can't find any details on the B062140. I'm guessing it's some kind of microcontroller/USB-PD type thing.

author: Fraser
author_rank: Super Contributor
timestamp: July 06, 2023, 10:58:02 am
content: That has the appearance of custom part marking and not a standard part number and production code format

author: chrisgreening
author_rank: Newbie
timestamp: July 06, 2023, 10:59:38 am
content: Makes sense - was thinking that it might some custom jobbie.

author: amyk
author_rank: Super Contributor
timestamp: July 07, 2023, 01:44:02 am
content: Can you trace the pinout and see what it's like? Perhaps it can be identified that way.
Help identifying a pressure sensor - Page 1
Forum section: electronics / projects

author: scrlk_
author_rank: Newbie
timestamp: April 12, 2019, 06:08:55 am
content: Hi, I recently found this AND UA-611 blood pressure monitor which is faulty. I plan to desolder the smd pressure sensor (labeled U3 on the board and marked as 0179V) and use it in another project but i have not been able to identify it. I have been searching for a repair guide or something that could help me getting the part no. I would appreciate any help, pictures of the board are attached.pictures
Help identifying a stackable connector - Page 1
Forum section: electronics / projects

author: BenonymousII
author_rank: Newbie
timestamp: December 05, 2018, 05:22:55 am
content: Can anyone assist me in identifying this connector. I think I've narrowed it down to a Molex type but googling "MXJ" that appears on the top of the connector dos not result in any specific result. It's amazing how difficult it is to ident an unknown connector in this era, so many options! Thanks in advance for any assistance.

author: philpem
author_rank: Frequent Contributor
timestamp: December 11, 2018, 01:42:22 am
content: "MXJ" means it's a part which came out of Molex Japan.You're looking for a board-to-board connector; best bet is probably to search for SMD, board-to-board interconnect (there's a term for it... mezzanine?) and the right number of pins, then see which mechanical drawing looks most similar to your part.CheersPhil

author: BenonymousII
author_rank: Newbie
timestamp: December 11, 2018, 09:20:22 pm
content: Thanks for the reply Phil

author: DaJMasta
author_rank: Super Contributor
timestamp: December 11, 2018, 09:45:16 pm
content: The big connector manufacturers have pretty useful search mechanisms on their sites, so if you can identify the manufacturer, measure the pin pitch, and count the contacts... you are likely able to find your part exactly.Definitely a high speed board to board mezzanine connector of some sort.

author: BenonymousII
author_rank: Newbie
timestamp: December 11, 2018, 09:46:59 pm
content: Cheers DaJMasta, I'll give that a go
Help identifying an IC  - Page 1
Forum section: electronics / projects

author: iTQAN
author_rank: Newbie
timestamp: December 19, 2013, 06:29:35 am
content: I need to find a replacement or specs for the IC thats shown in the attached image.Here's the details:I'm working on repairing a controller circuit for a frequency up-convertor. I replaced 2 voltage regulators and that fixed the problem partially. The circuit runs for 10 minutes and then alarms with power supply fault (not a hard fault). I traced the problem and I found that the IC shown on the attached image is faulty. I researched the numbers on the IC with no luck finding any info. Any help, tips or ideas to help me out find a suitable replacement would be much appreciated.

author: kony
author_rank: Regular Contributor
timestamp: December 19, 2013, 07:37:55 am
content: http://datasheets.maximintegrated.com/en/ds/DS1809.pdf

author: iTQAN
author_rank: Newbie
timestamp: December 19, 2013, 07:58:52 am
content: What makes you sure this is the one?Quote from: kony on December 19, 2013, 07:37:55 am

author: Psi
author_rank: Super Contributor
timestamp: December 19, 2013, 09:19:34 am
content: Quote from: iTQAN on December 19, 2013, 07:58:52 am1- It says that number on it2- GND is in the correct place (you can also measure VCC to check)3- The diode and cap on pin3 matches the datasheet example circuit for autostore mode

author: iTQAN
author_rank: Newbie
timestamp: December 19, 2013, 09:36:04 am
content: I think you are spot on. I also found this variable voltage supply design using DS1809. I'll call maxim integrated tomorrow to verify the rest of the numbers.http://www.maximintegrated.com/app-notes/index.mvp/id/183Thank you very much.
Help Identifying an old chip - Page 1
Forum section: electronics / projects

author: andersendr
author_rank: Regular Contributor
timestamp: January 25, 2011, 04:58:11 am
content: Hello forum,I recently scraped an old piece of Motorola radio equipment, one of the displays I kept. It has 4 common cathode red 7seg LED's on it, part number MAN74A. On the LED board there is also 2 buttons which go back to the driver or microprocessor. I am attempting to determine the driver chip. It has 3 wires coming to the board, red, black and white. I assume power, gnd, and data. On the driver board it has a cap, resister and diode. The numbers on the chip are as follows,51R84865G10EA 7316B8001 XThe symbol on the chip is "ea", where if you rotated either letter by 180 degrees it would look like the other. I am really thinking about using this setup as one, but would like to know about the driver chip.

author: RayJones
author_rank: Frequent Contributor
timestamp: January 25, 2011, 06:55:39 am
content: Found this site:http://www.icqoso.com/data-LM8361.htmlhttp://translate.google.com/translate?hl=en&sl=zh-CN&u=http://www.icqoso.com/data-LM8361.html&ei=2XI-TbHvCoaevQOw7-GtAw&sa=X&oi=translate&ct=result&resnum=6&ved=0CDYQ7gEwBTiWAQ&prev=/search%3Fq%3D7316B%2B-bearing%2B-bearings%26start%3D150%26hl%3Den%26client%3Dmozilla%26sa%3DN%26prmd%3DivnsIf you apply translation, it shows the EA7316B as a substitution model......

author: RayJones
author_rank: Frequent Contributor
timestamp: January 25, 2011, 07:08:58 am
content: LOL, pumping the LM3861 into google shows you probably have the guts of a digital clock - fits the description!

author: andersendr
author_rank: Regular Contributor
timestamp: January 25, 2011, 09:18:32 pm
content: OK thanks everyone. Now I wish I could find a datasheet. Dose anyone have any good places for old datasheets? Google turns up some of the chips for sale on eBay in Germany but they do not offer any datasheets.
Help identifying an unknown component part number.. possibly (switch)??? - Page 1
Forum section: electronics / projects

author: rlumpkin3000
author_rank: Newbie
timestamp: March 10, 2021, 01:31:53 pm
content: Here is a photo of the component. I am led to believe it is a switch due to its designation number PHSW1Anyone ever come across this part before?? Where might I start?? could it possibly be a PUSH SWITCH?I do not have access to the actual board nor do I know where the board came from, I am working from a photo just as you.I have used brightness/contrast in gimp to see if i can identify any markings, all I can make out are 'L, +, D and +' on the front.Maybe a good puzzle for those of you who are bored.--Robert

author: gamalot
author_rank: Super Contributor
timestamp: March 10, 2021, 01:42:40 pm
content: It's a transmissive photomicrosensor.

author: Terry Bites
author_rank: Super Contributor
timestamp: March 11, 2021, 02:25:41 pm
content: Its a PCB with a "slotted photoswitch" It detects if there is something in the slot or not.Probably part of speed or position control from a rotating machine.PHSW is a give away PHotoSWitch....https://learnabout-electronics.org/Semiconductors/opto_54.php

author: rlumpkin3000
author_rank: Newbie
timestamp: March 11, 2021, 03:45:02 pm
content: Thank You all for your help. I have isolated it down to PNTCST2103https://www.digikey.com/en/products/detail/vishay-semiconductor-opto-division/TCST2103/2354849?s=N4IgTCBcDaIAQBUDCBlBYCMAGAzCAugL5ASOLVED.
Help identifying and/or finding a mating connector - Page 1
Forum section: electronics / projects

author: jeremy
author_rank: Super Contributor
timestamp: June 15, 2013, 12:01:09 pm
content: Hi guys,I am having trouble finding a 2x6 1mm pitch female boxed connector. There is a male connector on piece of hardware I am trying to fix and I'd like to look at the signals on it. Can anyone please suggest where I might be able to find one? I have attached a picture of the connector I am trying to mate into.(and yes, it is cracked, but it was like that before I got to it!)Thanks.

author: jeremy
author_rank: Super Contributor
timestamp: June 15, 2013, 12:12:36 pm
content: Oops, measured it wrongly. Found the connector now. Feel free to ignore me
Help identifying cap value? - Page 1
Forum section: electronics / projects

author: iXod
author_rank: Frequent Contributor
timestamp: March 05, 2018, 06:09:52 am
content: What is the value of this ceramic cap? 0.01 uF? nF? F?Out of circuit it measures 13 nF. Presume that it's defective so would like to know what its specified value is.Thanks.

author: Niklas
author_rank: Frequent Contributor
timestamp: March 05, 2018, 06:25:43 am
content: 10nF (marked as 0.01uF), M=tolerance +/-20%, 100 V, dielectric material Z5U (cheap, low performance)13 nF is still a bit outside of the 20%, but measured in circuit it might still be within spec.

author: iXod
author_rank: Frequent Contributor
timestamp: March 05, 2018, 06:32:28 am
content: Thanks for you reply.Even 30% would probably be OK in this application.Cheers.
Help identifying component? - Page 1
Forum section: electronics / projects

author: St3venAU
author_rank: Newbie
timestamp: September 16, 2019, 03:02:22 pm
content: Hi, I'm wondering if anybody can help identify this component? It came from a 12v-240v inverter and was across the 240vac output. It failed short circuit (component tester show it as a 0.03ohm resistor). I'm guessing from the 103k that it's a 10nF cap,but I was unable to determine what the 26 above that indicated. Any advice on a replacement component? Thanks.Edit: After digging a bit, I realised that the marking must be 2G (not 26 as I had read it as first) which indicates 400VDC. This surprises me since it's across the 240VAC output of the inverter, so I would have expected an AC rated cap. Does anyone know if it would be wise to replace it with a different cap, perhaps a 2T (250VAC) rated cap?

author: amyk
author_rank: Super Contributor
timestamp: September 17, 2019, 12:09:42 am
content: 240VAC is ~340V peak, so 400V would be ideal.

author: SiliconWizard
author_rank: Super Contributor
timestamp: September 17, 2019, 12:20:57 am
content: Replacing it with a class X2 capacitor would be a good idea too.It wouldn't fail as a short-circuit, which could be a pretty bad thing here if your inverter is not well protected against short-circuits.
Help identifying connector - Page 1
Forum section: electronics / projects

author: jeremy
author_rank: Super Contributor
timestamp: June 24, 2022, 12:57:00 am
content: Hi all,I have a connector which I am struggling to identify. I have attached some pictures, does anyone have an idea what it could be?Just a few notes I have because it can be hard to see from the photos:- diameter of the outer flange is 21.2mm- diameter of the next inner raised area with the two keyways/slots (one on top and one on bottom) is 17mm- diameter of the inner block which guides the pins is roughly 12mm- there is a tiny icon embossed inside the connector, but it just looks like the exclamation mark inside a triangle that is located below it on the mounting panel

author: moffy
author_rank: Super Contributor
timestamp: June 24, 2022, 08:15:21 am
content: Looks similar to this, but not sure it is the same:https://au.rs-online.com/web/p/industrial-circular-connectors/1115758

author: jeremy
author_rank: Super Contributor
timestamp: June 24, 2022, 08:25:01 am
content: Thanks for your help! Actually, I just managed to find it, it is digikey part number 889-2230-ND

author: moffy
author_rank: Super Contributor
timestamp: June 24, 2022, 09:50:14 am
content: Congrats, sometimes like looking for a needle in a haystack.

author: tooki
author_rank: Super Contributor
timestamp: June 24, 2022, 10:50:13 am
content: Quote from: jeremy on June 24, 2022, 08:25:01 amYep, I recognized it immediately as the C091B series of circular DIN connectors. FYI, if one eo3snt need it to be latching, any ordinary DIN plug will mate with them.
Help identifying connector - Page 1
Forum section: electronics / projects

author: calzap
author_rank: Frequent Contributor
timestamp: September 01, 2022, 04:38:46 pm
content: See the picture. Connector is used on RainBird irrigation controllers and power supplies (24 VAC). Contacts are spaced 4 mm on center. Need both male and female connectors. I've looked online and in old paper catalogs, but haven't matched it yet.Mike in California

author: tooki
author_rank: Super Contributor
timestamp: September 01, 2022, 06:52:25 pm
content: My guess is you were unsuccessful in finding it because it's not a 4mm pitch, but 3.96mm (0.156"). (I'd love to know the origin of that pitch, since it's quite common, yet doesn't divide evenly in metric or inches!)I think it's a TE SL-156 series (or clone thereof), probably 770849-2 (see p. 49 in thecatalog). The catalog covers the various headers that are available (see compatibility matrix on p.47).If it doesn't need to look exactly the same, look at the MTA-156 series in the same catalog. They're compatible with the same headers, but rather than crimp contacts (for which you might need to buy a somewhat costly crimp tool), they are insulation-displacement connectors, for which an inexpensive hand tool (part 59804-1) is available.

author: calzap
author_rank: Frequent Contributor
timestamp: September 01, 2022, 10:26:33 pm
content: Thanks for the info, tooki. Origin of the 3.96 mm (0.156") size is probably 5/32". Gotta love those powers of 2 ... not!Mike in California

author: tooki
author_rank: Super Contributor
timestamp: September 02, 2022, 05:59:03 am
content: Quote from: calzap on September 01, 2022, 10:26:33 pmThat must be it, thanks! Even as someone who grew up using inches, I must admit I’ve rarely had to use 1/32” increments.
Help identifying connector - Page 1
Forum section: electronics / projects

author: steaky1212
author_rank: Regular Contributor
timestamp: August 04, 2025, 08:52:48 am
content: Hi everyone,I am trying to identify a mating connector for one in the attached photo (apologies for the bad pictures), but can't seem to find one.I am hoping to get the actual connector in a couple of days to get some better pictures.Any help in identifying it would be appreciated.Thanks in advance,Steaky

author: BILLPOD
author_rank: Frequent Contributor
timestamp: August 04, 2025, 07:58:08 pm
content: Good Morning Steaky1212, when you take the 'better' photos, please include another item in the photo, for a size reference. Also full-on end view would be helpful. And maybe a part number from wherever you ordered it from, as there might be a data sheet with lots of helpful info., like current carrying capability.Also, a description of how you will be implementing it. Salude

author: TimFox
author_rank: Super Contributor
timestamp: August 04, 2025, 10:24:11 pm
content: A 6"/15 cm ruler is good to add.I like to photograph objects on a green plastic cutting board that has an 0.5" chessboard pattern.If I need to use perspective correction in software to avoid keystoning, the pattern gives a good square reference.
Help identifying connector - Page 1
Forum section: electronics / projects

author: iXod
author_rank: Frequent Contributor
timestamp: July 06, 2017, 02:08:08 am
content: http://imgur.com/a/CEJ4yNo part number, logo or other text on the connector. Spacing 0.1 inch (2.5 mm) -- I forgot to measure the pin size...Any idea what series this is? It's on a Japanese printing machine, vintage 2005

author: mariush
author_rank: Super Contributor
timestamp: July 06, 2017, 02:14:37 am
content: I'd say start looking into JST catalogues from around that time.

author: ajb
author_rank: Super Contributor
timestamp: July 06, 2017, 03:10:07 am
content: Looks like a larger pin count version of the connectors used on floppy drives.

author: amyk
author_rank: Super Contributor
timestamp: July 06, 2017, 11:00:37 am
content: Quote from: ajb on July 06, 2017, 03:10:07 amhttps://www.digikey.com/product-detail/en/te-connectivity-amp-connectors/1-171822-2/A111944-ND/2262403this?
Help identifying connector - Page 1
Forum section: electronics / projects

author: rkmore
author_rank: Newbie
timestamp: July 26, 2017, 10:46:03 pm
content: Good day allCan anyone help identify the connector in the attached images? It is a 5 pin circular thread-on affair with the 5 pins equally spaced. The body is right about 10mm and the pins are 0.9mm.It is definitely not a GX16 and it sure doesn't look like M series to my eye.Any help identifying it would be greatly appreciated.

author: Tomorokoshi
author_rank: Super Contributor
timestamp: July 29, 2017, 05:53:16 am
content: That looks a lot like something from Tajimi Electronics:https://ssl.tajimi.co.jp/english/http://www.marshall-usa.com/cables/tajimi_connect/tajimi.html

author: amyk
author_rank: Super Contributor
timestamp: July 29, 2017, 04:23:50 pm
content: Could it be a GX12?

author: rkmore
author_rank: Newbie
timestamp: July 29, 2017, 07:03:31 pm
content: Thanks for the reply.No, unfortunately it is not a GX12-5The barrel of a GX12 is 8mm where this is 10.7mm. Also the pins are skinnier than on a GX12 (1mm for the mystery coneector, 1.2mm for a GX12).Thank you for the suggestion though. I really appreciate your help.
Help identifying connector - Display/VGA functionality - Page 1
Forum section: electronics / projects

author: kaotix
author_rank: Newbie
timestamp: April 12, 2014, 04:07:08 pm
content: I have a random 10.4" LCD panel that was purchased a few years back from a Chinese vendor through work. Unfortunately over time, the wires have been lost but the panels are still here. On the backside of the LCD panel it has a number of connectors, some of which are pretty obvious and one other that is completely unknown to me and apparently the rest of the world.I have linked to some pictures of the connector, it is 14 pin (7 top and 7 bottom), has a flat top and a slight curved lower section.It is approx 9mm x 3mm.The purpose of this connector is to supply video into the LCD panel itself.If anyone can help me identify the connector and potentially a cable that is suitable for providing video (D-sub/VGA) into the LCD I would really appreciate it.Thanks.

author: miguelvp
author_rank: Super Contributor
timestamp: April 12, 2014, 10:27:03 pm
content: Too easy, Centronics 20 pin connector. DFP micro centronic 20, MDR20 connectorAnd easy because I came up with that connector because of someone else looking for a custom connector, that might not have been this one but look very close to be a match.https://www.eevblog.com/forum/testgear/please-help-to-identify-connectors/msg418971/#msg418971Google dfp 20 pin to hdmiEdit: Hold your horses that one in there is not a 20 pin! it's a 14 pin!https://www.google.com/search?q=dfp+14+pin+to+hdmi&source=lnms&tbm=ischSo it's a D-Terminal Video connectorhttp://en.wikipedia.org/wiki/D-Terminal

author: miguelvp
author_rank: Super Contributor
timestamp: April 12, 2014, 11:23:49 pm
content: Been trying to find a source but no dice, only thing I can find is PS3 to D-Terminal adapters but those are male like the one you have.The only one cable that you can use to make your own connector:http://www.solarisjapan.com/d-terminal-female-to-component-adapter-cable-male/http://www.goldenshop.com.hk/AI-trad/Misc_htm/m_d2comp.htm(you must specify you want a female d-terminal on the cable, the picture is of the male one)The specs for what each pin is in the wiki page in the previous post.The standard is RC-5237 and I found a datasheet for a connector:http://www.datasheetarchive.com/dl/Datasheets-IS36/DSA00704399.pdfThe part number is: CSS5014-2K01F but not really easy to get.Edit: i said it was easy to get but is not.Chinese site:http://rensun.net.cn/offer/1286993912.htmlhttp://www.questcomp.com/InventoryItems.aspx?pn=CSS5014-2K01F&recordid=23551660Edit: maybe this site in Japan:http://global.rakuten.com/en/category/electronics/other_tvs/av_cables/d_terminal_component_cable/

author: kaotix
author_rank: Newbie
timestamp: April 13, 2014, 07:01:24 pm
content: Thanks for this, you've certainly impressed me. I was looking round for ages trying to locate something remotely similar that wasn't an HDMI cable.I'm going to try and get hold of one of those cables and see if I can get some video into display.thanks again!regards,phil
help identifying connector on JBC soldering station - Page 1
Forum section: electronics / projects

author: 1sciguy
author_rank: Contributor
timestamp: May 22, 2020, 07:53:35 pm
content: Does anyone know what connector brand this is? I can't make out that name inside. This is on a JBC soldering station. I want to see if I can make a new cable that goes to a TS100 handle so I can use the super cheap TS100 soldering tips that are about 1/20th the cost of JBC tips.

author: 1sciguy
author_rank: Contributor
timestamp: May 22, 2020, 08:06:49 pm
content: Nevermind.. I just found it in another section of this site...
Help identifying connector - wire to board - Page 1
Forum section: electronics / projects

author: ipt555
author_rank: Newbie
timestamp: August 01, 2020, 12:09:37 pm
content: Hi,Does anybody recognise this connector? I'd appreciate any pointers - I've not had any luck finding it with parametric search on Mouser/ Digikey/ Farnell, nor the obvious manufacturer websites such as Hirose, JST, Molex, etc.It looks rather like a board-to-board connector, but it's actually wire-to-board (or at least, the variant I have here is). It's taken from a Panasonic TV that's probably 15-20 years old.I'm trying to source the board-mount part; the outer dimensions (ignoring legs) of the plastic body are 13.0mm x 5.0mm, and 4.4mm high for the 20-way part pictured here. It is a two-row part.And just in case it helps identify it, here are some pictures of the mating wire-mount part:And the two parts mated:Many thanks,Tom
Help identifying connector/plug - Page 1
Forum section: electronics / projects

author: Pine land
author_rank: Newbie
timestamp: May 03, 2020, 08:56:45 pm
content: Hey,Long story short my electric bike was stolen over Easter. The battery was stored inside and it's all that i have left. Now i want to use the battery as a power supply for other projects. But i cant figure out what the connector on the back is.I am not sure what the battery is called but "Samsung dolphin 48V battery" is a google search that works. There is a cradle for the battery that is fitted to the bike, i want a new one but Norway's new import laws make that rather expensive. So a new male plug will do.My best guess so far is a "M16 2 pin" but that seems unlikely at its not rated for 750W. Included are some pictures of the battery and connector, couldn't find my calipers so standard fluke multimeter probe for scale.Thanks for reading and any help!Best regardsPine land
Help identifying connectors. - Page 1
Forum section: electronics / projects

author: avitsur
author_rank: Contributor
timestamp: January 27, 2023, 02:24:21 pm
content: Hi,I have a TB6560 3 axis stepper motor controller board. it has connectors for the motors and the input voltage. I hope that you can tell how this connectors are called, because I want to order the plugs that connects into these connectors. there are 3 pcs of 4 points, 1 of 3 points and one of 2 points. thanx.

author: wykasz
author_rank: Contributor
timestamp: January 27, 2023, 04:29:14 pm
content: Looks like "2EDG"https://www.tme.com/us/en-us/details/2edgv-5.0-05p14/pluggable-terminal-blocks/degson-electronics/2edgv-5-0-05p-14-00ah/https://www.tme.eu/en/details/2edgka-5.08-03p/pluggable-terminal-blocks/degson-electronics/2edgka-5-08-03p-14/Not sure thou what the real name is.

author: wraper
author_rank: Unknown
timestamp: January 27, 2023, 04:38:25 pm
content: Quote from: wykasz on January 27, 2023, 04:29:14 pmOriginal terminals are MSTB series from Phoenix Contacthttps://www.tme.eu/en/details/mstb2.5_10-st/pluggable-terminal-blocks/phoenix-contact/mstb-2-5-10-st-1754601/, TME also sells cheap clones from Degson.
Help identifying contact, Bosch knock sensor. - Page 1
Forum section: electronics / projects

author: RogerThat
author_rank: Regular Contributor
timestamp: November 16, 2019, 12:37:15 pm
content: Hi,Anyone know what contact this is? Which female cable part should I get to fit that?

author: vk6zgo
author_rank: Super Contributor
timestamp: November 16, 2019, 12:57:48 pm
content: Quote from: RogerThat on November 16, 2019, 12:37:15 pmIt looks like a "special".Auto electrical companies delight in them, & I doubt if you will find the female part by itself -----maybe you could pick up one, complete with a length of wiring harness from the auto wreckers.If you just want to connect to the pins, you could use individual ordinary auto "push on" connectors.Another thought is to make a body up with a 3D printer to hold the above type of connectors securely, & mate correctly with the male plug & recess.

author: sokoloff
author_rank: Super Contributor
timestamp: November 16, 2019, 01:11:28 pm
content: Looks like it might be available from several suppliers online.Here’s one that looks like it matches:https://rrrshop.co.uk/bosch-knock-sensor-connector-2-way-1564-p.asp
Help identifying ferrite core transformer type? - Page 1
Forum section: electronics / projects

author: Chris56000
author_rank: Frequent Contributor
timestamp: October 21, 2020, 01:59:39 pm
content: Hi!In trying to locate alternative parts for the Oscilloscope Clock Project, can anyone offer me any details on an Asian Ferrite Transformer Core that has 7 pins each side of the bobbin on 0.15" (3.81 mm) centres please?The transformer is a horizontal mounted type called T–SC–1, with pins on 0.15" centres – I thought it might be ETD29 or ETD34 but these are 5mm pin spacing and the PCB would have to be quite a bit bigger!Chris Williams

author: TimNJ
author_rank: Super Contributor
timestamp: October 21, 2020, 02:20:19 pm
content: A picture is worth a thousand words. Do you have one?

author: Chris56000
author_rank: Frequent Contributor
timestamp: October 21, 2020, 05:24:12 pm
content: Hi!One shown below!I worked out the pin spacing by copying the two pictures of the PCBs provided by the initial eBay seller of these kits into my Sprint Layout software, which will zoom/align the picture to align with the grid, so by adjusting the zoom factor so the i.c. pin spacing is correct for the grid, the pin spacing and approximate size of the transformer can be estimated!Unfortunately this is all I've been able to find about these kits myself, with the exception of some circuit details, parts lists and code from a very kind EEV Blog Forum Member yesterday, there's been no writeups I can find other than the SC200 one, and the write-up that was available gave no details of the transformer design whatsoever, not even a picture!I did try emailing David Forbes who designed it but have had no reply as of yet!I have ordered what appears to be one of the very last of these kits from China – the money has been collected but no news of despatch as of yet!If the seller comes back later with "no stock!", then my aim is to work out the design of a transformer for 9–16V operation which will provide the equivalent outputs to the Chinese or David Forbes's design that can be written up in full so any Members who'd like to try making their own have all they need – we now have the schematics, parts–lists and code for both the Chinese and the SC200 designs, the only missing pieces of the jigsaw are the PCBs, which I can design, and the transformer itself!Chris Williams