Upgrade from a DER DE-5000 LCR meter - Page 1
Forum section: electronics / testgear

author: Giallograle
author_rank: Contributor
timestamp: October 11, 2024, 11:47:19 am
content: Hi All,My DER DE-5000 has been invaluable for measuring capacitors, inductors and transformers for audio, up to 100kHz. Drawbacks are mainly that it doesn't have an easy way to attach standard 4-wire probes, and readings can be a bit sensitive to the connections from its probes.I'm thinking about getting a benchtop unit to improve accuracy and ease of use. USB or GPIB would be nice. Recommendations here suggest brands including HP/Agilent, Tonghui (also available as SourceTronic and SalukiTec), Hioki and GW Instek. The latter two are better, and more expensive, than I need.Older HP units have the benefits of their original build quality, available documentation and serviceability in case of problems.The HP 4263A is the least expensive, and readily available used at under $300. 5-digits, 0.1% accuracy and 6 frequencies from 100Hz to 100kHz.The HP 4263B has a better 2 line screen, can be hacked to measure transformers, but is a less widely available and costs around $600.The recently discontinued Tonghui TH2830 has a good spec and is just under $700 (SourceTronic list the ST2830 at around $1,300 in UK). The TH2817B is available for a similar price.The discontinued GW Instek LCR-819 is available for $700, but pretty much only in the US so shipping would be prohibitive and specs seem slightly behind the TH2830.The 2830 looks like a good machine; but it's pushing my budget. Whilst I'd like the better screen and transformer measurements, the 4263B costs nearly as much as the 2830. The 4263A looks like the sensible choice, but I'm still tempted by the TH2830.Is there a benefit in having more frequencies within the test range rather than four or five?Is there anything I've missed or should consider? What do you think, preferably from experience?TIA

author: kripton2035
author_rank: Super Contributor
timestamp: October 11, 2024, 11:58:29 am
content: why not simply make a good probe for your de5000 ? buy a ready made probe for L C or R components, and adapt it to the de5000 ?

author: kripton2035
author_rank: Super Contributor
timestamp: October 11, 2024, 01:37:48 pm
content: something like this :

author: manganin
author_rank: Regular Contributor
timestamp: October 11, 2024, 02:37:10 pm
content: How about the good old HP 4274A?Built like a tank and the user interface is very good. Holds calibration forever, mine was last adjusted over 20 years ago and when checked last year, well within one year specs.Still sought after, so it can take some time to find a reasonably priced one.

author: coromonadalix
author_rank: Super Contributor
timestamp: October 11, 2024, 05:12:44 pm
content: you have the one from kungfujosh in the sale threadHioki 3532-50 LCR Meter .... new screen and touch ... who could be a deal, but sadly in Usa .... shippping could be priceyhttps://www.eevblog.com/forum/buysellwanted/fsft-hioki-3532-50-lcr-meter-42-hz-to-5-mhz-w-new-lcd-and-touch-panel/msg5659895/#msg5659895

author: KungFuJosh
author_rank: Super Contributor
timestamp: October 11, 2024, 05:46:25 pm
content: If OP wants to PM me a mailing address, I can get a shipping quote. GlobalPost is reasonable, but not as fast as expensive DHL.

author: KungFuJosh
author_rank: Super Contributor
timestamp: October 11, 2024, 10:50:04 pm
content: If you don't need higher frequencies, the SourceTronic ST2830 is a good choice too.

author: mawyatt
author_rank: Super Contributor
timestamp: October 12, 2024, 09:17:09 pm
content: One thing the OP should consider is the Tonghui TH2830 (ST2830) comes with quality Kelvin Clips, Leaded Fixture with Calibration Blade Short, these are worth over $130 alone. These aren't the cheap "Equivalents" you see, seems R&S also rebadges these.We have the TH2830 and Hioki IM3536, the TH2830 is quite good but limited frequency range (100KHz), that's why we have the Hioki (8MHz). Also have the DER-5000 for a handheld.Check out our various posts/threads on these bench LCR meters.Best,

author: Giallograle
author_rank: Contributor
timestamp: October 14, 2024, 12:23:38 pm
content: Thanks everybody!I did think about adding some leads to the DE-5000; but it works ok for individual components with it's own limited kelvin leads, so I decided to stick with it as is and add a benchtop meter.I had a look at KungFuJosh's Hioki 3532-50 - it's a very nice piece of kit, but $1,600 is out of the league of my current bench and requirements!The HP 4274A is indeed built like a tank - 18kg! - however it's rarer and a lot more expensive than the HP 4263A/B and I don't think it offers more functionality.Looks like it's either the TH2830 - $700 with the accessories assuming they're decent quality, and good reviews apart from support - or the HP 4263A - plus $130 for accessories, say $430ish - is the bargain. If they'll both do the same job, and I'm quite happy with older but solid kit for my hobby, are there any advantages, other than newness, to the TH2830?

author: coromonadalix
author_rank: Super Contributor
timestamp: October 14, 2024, 02:40:47 pm
content: the de-5000 is good if you are careful about charged caps ... poof and you do the open close calibration ...sure they are 2 ic`s solution like some other brands, Mastech, unit-t ...

author: mawyatt
author_rank: Super Contributor
timestamp: October 14, 2024, 03:19:38 pm
content: Quote from: Giallograle on October 14, 2024, 12:23:38 pmWhere can you find a TH2830 for $700? We paid over $800 for ours new a couple years ago!Edit: BTW we were told directly from Tonghui, they do not authorize any AliX sites. So getting any warranty service for a non-authorized site purchase might be risky.As we mentioned TH2830 comes with the quality Kelvin Clips (not cheap stuff you see everywhere), Fixture for Leaded Devices and Short Cal Blade. We routinely compare with our newer Hioki IM3536 (also purchased new) and the TH2830 is spot on for both low (milliΩ) and high (pF) Z components.Like the form factor too, it's same as Keysight 34465A DMM, doesn't take up much bench space.Here's a few links wrt TH2830 you might interesting.Best,https://www.eevblog.com/forum/testgear/lcr-meter-plot-software/msg4774100/#msg4774100https://www.eevblog.com/forum/projects/lcr-lab-grade-parameter-plotting-fixture/msg5536543/#msg5536543https://www.eevblog.com/forum/testgear/sensitive-lcr-meter-measurements/msg5598337/#msg5598337https://www.eevblog.com/forum/projects/bias-network-for-lcr-meter/msg5206647/#msg5206647https://www.eevblog.com/forum/projects/ceramic-capacitor-behavior/msg5536403/#msg5536403

author: KungFuJosh
author_rank: Super Contributor
timestamp: October 14, 2024, 04:10:59 pm
content: You're missing an important thread for the TH2830:https://www.eevblog.com/forum/testgear/th2830-vs-th2832/😉😉

author: mawyatt
author_rank: Super Contributor
timestamp: October 14, 2024, 06:20:52 pm
content: Just out of curiosity since we had the TH2830 powered up for something else, we grabbed a 1pF +-0.1pF Ultra-Stable NP0/C0G High Q Microwave 0805 Capacitor from PPI, and turned on the IM3536.TH2830 @ 100KHz 1.01622pFIM3536 @ 100KHz 1.0132pFThat's within 0.003pFBest,

author: Martin72
author_rank: Super Contributor
timestamp: October 14, 2024, 08:02:54 pm
content: QuoteI can only dream of that here.Oh, I was just going to post the price for the TH2830 from Batterfly...https://www.batterfly.com/shop/de/tonghui-th2830-lcr-meterDiscontinued...

author: KungFuJosh
author_rank: Super Contributor
timestamp: October 14, 2024, 11:42:36 pm
content: Quote from: Martin72 on October 14, 2024, 08:02:54 pmMaybe it's our fault since the TH2832 doesn't say that. 🤣https://www.batterfly.com/shop/de/testandmeasurement/test-componeti/tonghui-th2832-lcr-meter

author: Martin72
author_rank: Super Contributor
timestamp: October 15, 2024, 04:36:31 pm
content: But probably not for much longer.Tonghui has released a whole bunch of new devices to counter this.https://www.tonghui.com.cn/en/product_list2_9.html

author: EE4all
author_rank: Regular Contributor
timestamp: October 15, 2024, 04:50:30 pm
content: There are also good used Fluke LCR options.

author: mawyatt
author_rank: Super Contributor
timestamp: October 15, 2024, 04:52:18 pm
content: We'll trade for the TH2851-130 thank youBest

author: KungFuJosh
author_rank: Super Contributor
timestamp: October 15, 2024, 05:01:10 pm
content: Quote from: mawyatt on October 15, 2024, 04:52:18 pmI bet a dollar it's the same hw as the 50MHz version. 😉ETA: lots of nice specs though. HDMI out and ethernet too.

author: Martin72
author_rank: Super Contributor
timestamp: October 15, 2024, 05:03:18 pm
content: Looks damn nice...

author: Sorama
author_rank: Frequent Contributor
timestamp: October 15, 2024, 06:33:35 pm
content: It looks damn…expensive!

author: egonotto
author_rank: Super Contributor
timestamp: October 15, 2024, 08:37:43 pm
content: Hello,about 4000 €/kgBest regardsegonotto

author: KungFuJosh
author_rank: Super Contributor
timestamp: October 15, 2024, 09:30:39 pm
content: It's a Windows based machine. Looks interesting, but I think your price per kg estimate might be low:Currently a bargain for $73k on Amazon:https://www.amazon.com//dp/B09ZB7GQ38Two please!Thanks,Josh

author: egonotto
author_rank: Super Contributor
timestamp: October 15, 2024, 10:17:14 pm
content: Hello,I have the price fromwww.directindustry.de.Best regardsegonotto

author: Martin72
author_rank: Super Contributor
timestamp: October 15, 2024, 10:34:00 pm
content: Maybe we should talk about the new Tonghui products in a new thread, what do you think?

author: KungFuJosh
author_rank: Super Contributor
timestamp: October 15, 2024, 11:07:20 pm
content: Quote from: egonotto on October 15, 2024, 10:17:14 pmNot that far off. That's $62517.21 USD according to google. Add your VAT and that usually matches about the US price. That's 19% for you, right? So my $73k USD price is slightly cheaper. 😉😉Where did you find the weight?

author: KungFuJosh
author_rank: Super Contributor
timestamp: October 15, 2024, 11:08:18 pm
content: Quote from: Martin72 on October 15, 2024, 10:34:00 pmAre you suggesting the TH2851-130 isnotan upgrade from the DE-5000?? 😉

author: egonotto
author_rank: Super Contributor
timestamp: October 16, 2024, 02:06:18 am
content: Hello,I have now opened a thread for this:https://www.eevblog.com/forum/testgear/th2851-130-and-and-other-inexpensive-devices-to-measure-LCRBest regardsegonotto

author: the Chris
author_rank: Regular Contributor
timestamp: October 16, 2024, 06:35:20 am
content: I've got an Anbei AT826 that does it's job quite well. Did some comparison measurements with an Agilent E4980A and both agreed to within 0.1% max at each frequency. Anbei offers tabletop versions, might be worth a look.

author: TheDefpom
author_rank: Frequent Contributor
timestamp: October 16, 2024, 09:13:10 pm
content: I did a Kelvin lead mod to my unit many years ago, I did a video about it at the time but you will have to excuse the video quality, it was very early on in my YouTube journey...

author: Giallograle
author_rank: Contributor
timestamp: October 17, 2024, 12:05:54 pm
content: Looks like a good opportunity to get a discounted TH2830 whilst the replacement 2840 is coming in.I'm very tempted by the shiny new Tonghui, good display and a nice set of leads, but will it be any better in practice than the HP 4263A? Talk me into it, or talk me out of it...

author: KungFuJosh
author_rank: Super Contributor
timestamp: October 17, 2024, 04:11:23 pm
content: Quote from: Giallograle on October 17, 2024, 12:05:54 pmThe display alone is worth it. Also better general accuracy, more frequencies to choose from, etc.ETA: ...and the ability toimproveit to 200kHz. 😉

author: Martin72
author_rank: Super Contributor
timestamp: October 18, 2024, 03:22:49 pm
content: Quote from: KungFuJosh on October 17, 2024, 04:11:23 pmThe same applies to the ET35 series from East Tester, except that you pay significantly less for an original 200khz test frequency, for example.The display is “huge” at 7” and the basic accuracy is the same.If you can accept that some parts of the software are messed up, it's a serious alternative to the TH28XX and no comparison to the DE5000 at all.

author: mawyatt
author_rank: Super Contributor
timestamp: October 18, 2024, 04:36:00 pm
content: Quote from: TheDefpom on October 16, 2024, 09:13:10 pmScott,We did the same Kelvin Cable Mod a few years ago as well and found the supplied short Alligator Clips worked just as well. We found this adaptation worthwhile (shown below), as it allows the DER-5000 to utilize all the various fixtures intended for LCR meters including fixtures for the difficult to measure SMD components.Here's a couple examples of a 1Ω 0.1% 2512 Resistor and a 1.0104pF C0G 0805 Capacitor using a Custom Split-Kelvin SMD LCR Meter Fixture and cheap Standard SMD Fixture.Anyway, no fudging or manipulating numbers/display, why we think highly of the handheld DER-5000 LCR Meter.Best

author: mawyatt
author_rank: Super Contributor
timestamp: October 19, 2024, 05:47:01 pm
content: Here's an example of using the DE-5000 with the custom to BNC adapter with a Standard SMD LCR Meter fixture. This is with a DUT Precision C0G 0.1uF SMD Capacitor at 1KHz, note the comparative results with the Tonghui TH2830 LCR meter.Folks with the DE-5000 and other handheld quality LCR Meters should consider this DIY to BNC Adapter, doesn't cost much and is easy to make. One could place the BNCs on a plate or L bracket to hold in place at the proper spacing for easier use, something on our to do list. It expands the handheld LCR Meter use especially with SMD components (with proper fixtures) and should yield more repeatable results.Best

author: Giallograle
author_rank: Contributor
timestamp: October 24, 2024, 03:59:16 pm
content: BNC sockets for the FE-500 look really useful.The East Tester 3501 is on AliXpress at around $900 , so the TH2830 looks like better value, and I see Mawyatt has written some software to generate curves on a pc from the 2830.Question is, when are those enhancements, or the 34 frequencies of the 2830 over the 6 of the old Agilent unit, likely to prove useful?

author: mawyatt
author_rank: Super Contributor
timestamp: October 24, 2024, 04:26:17 pm
content: Quote from: Giallograle on October 24, 2024, 03:59:16 pmOur TH2830 has increments of at least 1Hz from 50Hz to 100KHz, well even better see belowBest

author: KungFuJosh
author_rank: Super Contributor
timestamp: October 24, 2024, 05:09:13 pm
content: The accuracy and reliability of the TH2830 is excellent. Mine wasimprovedto ST2832, and it was excellent across the board. The newer SourceTronic firmware had some improvements for both models including the frequency stepping across the board instead of a few fixed frequencies that it was limited to previously.

author: Giallograle
author_rank: Contributor
timestamp: October 25, 2024, 04:27:11 am
content: @KungFuJoshQuoteWere you able to load the ST2832 software onto the TH2830?Ok so my question is... in practise, accurately characterising devices, parasitics and matching - the graphs are very nice but will the extra functionality let me do, or do more quickly/easily, things which the Agilent - 0.1% accuracy, 6 frequencies to 100kHz, and a number of different device models - cannot?

author: KungFuJosh
author_rank: Super Contributor
timestamp: October 25, 2024, 12:04:39 pm
content: Quote from: Giallograle on October 25, 2024, 04:27:11 amYes, there's a thread dedicated to it:https://www.eevblog.com/forum/testgear/th2830-vs-th2832/msg5275423/#msg5275423The better meters are 0.05% to 0.08% general accuracy. Whether or not you need better accuracy or more test frequencies is a question only you can answer.

author: Martin72
author_rank: Super Contributor
timestamp: October 25, 2024, 02:08:01 pm
content: Quote from: KungFuJosh on October 24, 2024, 05:09:13 pmI find that very useful.Then the sweep function of the ST4.0 software also makes more sense...https://www.sourcetronic.com/shop/en/st-meter-4-0.html

author: KungFuJosh
author_rank: Super Contributor
timestamp: October 25, 2024, 02:15:02 pm
content: Quote from: Martin72 on October 25, 2024, 02:08:01 pmAs do I. I certainly like being able to sweep frequencies too. 😉

author: mawyatt
author_rank: Super Contributor
timestamp: October 25, 2024, 02:27:02 pm
content: Quote from: KungFuJosh on October 25, 2024, 12:04:39 pmThisGraphis a good reference for folks to understand the limits of measurements with these LCR Meters, including Lab Bench, Handheld and Tweezer types.Note Limits shown with this are Impedance levels of 10mΩ to 100MΩ which relates to component values of 10mΩ Resistance, 10nH Inductance and 10fF Capacitance ranges.Please note that this graph has an error in the upper right corner, the 10pF as shown should be 10fF.Anyway, good stuff for those interested in accurate repeatable LCR measurements and what different types of instruments can deliver withproper technique fixturesand suchBest

author: mawyatt
author_rank: Super Contributor
timestamp: October 25, 2024, 02:34:06 pm
content: Quote from: KungFuJosh on October 25, 2024, 02:15:02 pmNice display with your HiokiBest

author: Giallograle
author_rank: Contributor
timestamp: November 06, 2024, 01:52:51 pm
content: Thanks for all the advice and help. I've decided to go for the TH2830, which I'm getting for just over $560 from Taobao (via AliPay and Superbuy) plus shipping, which will be shared with some other items, plus Vat when they arrive.It seems to come with enough accessories but as I'm shopping in China, I wonder if anyone can recommend any Chinese brands of Kelvin cables, SMD tweezers etc? I need a couple of sets for multimeters, and have tried some unsatisfactory leads before which I replaced with Keysight.Any other accessories I should think about?

author: tszaboo
author_rank: Super Contributor
timestamp: November 06, 2024, 02:05:00 pm
content: What do you use your LRC meters for? We have one in the office, Keysight U1733C or something from that linup, but its only used once in a blue moon. I'm trying to justify one for the home lab, but I just don't see myself using it.

author: KungFuJosh
author_rank: Super Contributor
timestamp: November 06, 2024, 06:06:02 pm
content: Quote from: tszaboo on November 06, 2024, 02:05:00 pmEverybody has different needs. If you don't need it, maybe that's the answer.Personally, I use LCR meters all the time for different work (mostly related to audio/guitar stuff).I would suggest getting the Shannon ST42 tweezers as your first LCR. It should cover most of your needs, for a good price and performance. I use the ST42 to verify component values for most things (anything that fits easy enough, or is within range) before installing anything.Thanks,Josh

author: Giallograle
author_rank: Contributor
timestamp: November 10, 2024, 02:32:44 am
content: Thinking about SMD tweezers or a fixture, I saw some discussions of pricy ST/Tonghui fixtures versus cheaper ones, and some modifications.Tonghui have two versions of the tweezers both TH26009, black (cheaper) and white (more expensive). Struggling to find much about them on Tonghui's site.Can you suggest any other good value brands suitable for use with the TH2830, so a couple of hundred kHz, rather than pushing the limits?

author: KungFuJosh
author_rank: Super Contributor
timestamp: November 10, 2024, 02:48:40 am
content: Quote from: Giallograle on November 10, 2024, 02:32:44 amNone of them are super fantastic, but the model numbers are not the same. The better ones (which are much better), are the TH26009. The crappier model is the TH26029.The TH26009 is okay for the price. If you want something better, you'll have to pay a LOT more. You can find the TH26009 for under $200, but verify that it's the correct model.Thanks,Josh

author: Giallograle
author_rank: Contributor
timestamp: November 10, 2024, 08:32:53 am
content: Got it thanks Josh, getting info from Tonghui's site is like pulling teeth so the following took an inordinate time...There don't seem to be any good alternatives to Tonghui test leads, so:TH26029B SMD Kelvin tweezers (white, box with 2 locking BNC connectors) 5Hz-100KHz, around $40 hereTH26009B SMD Kelvin tweezers (black, box with 4 locking BNC connectors) DC-15MHz, around $95TH26008A SMD test fixture (box with 4 locking BNC connectors) DC-120MHz, around $140Wondering whether the cheap tweezers are good enough for my purposes, audio frequencies, measurements down to pF; not critical at that level but it's approaching the meter's limits? I'd appreciate reliability, repeatability and accuracy in measurements, so if the 26009 is more suitable I'll go with that.Test fixture is probably too good for the 2830/32, and me!

author: Traceless
author_rank: Frequent Contributor
timestamp: November 10, 2024, 10:39:48 am
content: Quote from: Giallograle on October 11, 2024, 11:47:19 amHi Giallograle,since the meter has not been mentioned you might like to take a look at the Matrix MCR-5200 as option. It measures up to 200kHz, can beprogrammedand is avilable new for ~650-750€ for instance ateleshopordigikey. The meter supports a fixed set of measurement frequencies (40Hz, 50Hz, 60Hz, 80Hz, 100Hz, 120Hz, 150Hz, 200Hz, 250Hz, 300Hz, 400Hz, 500Hz, 600Hz, 800Hz, 1kHz, 1.2kHz, 1.5kHz, 2kHz, 2.5kHz, 3kHz, 4kHz, 5kHz, 6kHz, 7.5kHz, 10kHz, 12kHz, 15kHz, 20kHz, 25kHz, 30kHz, 40kHz, 50kHz, 60kHz, 75kHz, 100kHz, 120kHz, 150kHz, 200kHz). There is also a Matrix 6000 Series with contiguous frequency support or the big BrotherMCR-8500which measures up to 5MHz but is considerably more expensive (around 4500€)Cheers Traceless

author: KungFuJosh
author_rank: Super Contributor
timestamp: November 10, 2024, 03:34:39 pm
content: Quote from: Giallograle on November 10, 2024, 08:32:53 amThe TH26029B is a toy without good shielding.Did you mean $195 for the TH26009B? If you can get them for $95, get me one too. 😉Look at the Shannon ST42 LCR tweezers. They max at 10kHz, but that's plenty for audio. I use them more often than my IM3570, but I wouldn't part with either. When I still had the ST2832, it was the same story. ST42 for a lot of stuff, and then the ST2832 for anything beyond it. Or I used the THT fixture on the 2832 to quick test THT stuff faster than using the tweezers.

author: Giallograle
author_rank: Contributor
timestamp: November 11, 2024, 02:23:58 am
content: @KungFuJosh Yes, that's $95, around retail price here, plus I'll have to pay (expected) 7% Vat on import here. So I can order you a set and post them - looks like it may be around $17 tracked.Actually I think I can get them for a little less today, it's the last day of the Chinese 11/11 sales, so they'd come in at a shade over $100 delivered.This is coming from Taobao (China), to Superbuy who check it looks like what it's supposed to be, consolidate it with a bunch of other stuff and ship it to me in Thailand.PM me early today if that's of interest. And anyone else who's contributed to this thread.

author: tszaboo
author_rank: Super Contributor
timestamp: November 11, 2024, 01:26:35 pm
content: Quote from: KungFuJosh on November 06, 2024, 06:06:02 pmI was just wondering if anyone is doing something like measuring ultrasonic transducers, component development or some physical measurements. I don't find them particularly interesting for component measurements, because all the components I use have to have their characteristics defined by datasheet.And when I pick it up it's to measure a cable inductance or some other parameters that are undefined.I understand why you would need it for component development.

author: KungFuJosh
author_rank: Super Contributor
timestamp: November 11, 2024, 05:43:03 pm
content: Quote from: tszaboo on November 11, 2024, 01:26:35 pmI like to confirm what's on those datasheets, but IIRC, you're working on too large a scale to spend time on that, right?

author: tszaboo
author_rank: Super Contributor
timestamp: November 11, 2024, 07:39:53 pm
content: Quote from: KungFuJosh on November 11, 2024, 05:43:03 pmNot really because of that. I buy most passives from Europe, from reliable suppliers. For that ATEX certification (Hazloc is the US equivalent), we need full traceability for the parts. And the design needs to be safe and work with worst case conditions that are defined in the datasheet, or the de-rating is defined in standards. I cannot even have too much inductance and capacitance to begin with.

author: mawyatt
author_rank: Super Contributor
timestamp: November 11, 2024, 08:43:12 pm
content: Quote from: Giallograle on November 11, 2024, 02:23:58 amBe certain these are actual Tonghui TH26009B Tweezers, there are some "clones" around that look the same and may even say Tonghui with Logo. Same goes for some other Tonghui LCR Fixtures, there are a number of fakes out there.Also Tonghui told us a few years ago, they don't authorize any AliX sellers and we should only buy from Authorized Dealers otherwise they will not honor any warranty claims.Best

author: KungFuJosh
author_rank: Super Contributor
timestamp: November 11, 2024, 09:23:45 pm
content: Quote from: tszaboo on November 11, 2024, 07:39:53 pmI suppose if you're reading every datasheet for every part, that helps. I buy only from reputable sources, but sometimes they have errors on their websites. Like when Mouser said a 10nH inductor was 100uH. Testing the part with an LCR showed me the problem.Had I also read the datasheet with the part number, I would have found that out instead of trusting their website values to be correct for basic info. To me, that's annoying because those datasheets are usually for 50 parts each, and you have to search for the specific model number through the list...and then I'd still verify with an LCR. 😉

author: Giallograle
author_rank: Contributor
timestamp: November 12, 2024, 07:51:45 am
content: @mawyatt I should have clarified, this is from Taobao China, where most of the Chinese manufacturers have shops, for delivery in China.You can get the TH26009B SMD tweezers from Tonghui or most other electronics shops at these prices. I got a small saving by shopping around and virtue of the 11/11 sale.ETAwww.tw-eta.comwho make a wide variety of test leads offer SMD tweezers ETA2206E (1MHz, $55) and an SMD test fixture ETA2217 (30MHz, $70) similar to the TH26008A. ETA emailed to say they aren't as capable as Tonghui's versions so I ordered the ETA2217 SMD test fitting, along with a few other bits and pieces from ETA, and the TH26009B SMD tweezers.Btw I also found Tonghui's 'Handheld bridge test lead' TH26027AS Kelvin clips with a plug to fit the DER-5000; not expensive and easier than making one.