| Electronics > Projects, Designs, and Technical Stuff |
| really small SMD grabbers? |
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| MatteoX:
If you want to probe 0.5mm PQFP/TQFP style packages I would recommend Keysight wedge style probes E2613A/E2614A/E2643A (3/8/16 pins respectively). They are also available for 0.65mm pitch. https://www.keysight.com/en/pd-1000000655%3Aepsg%3Apro-pn-E2613A/05-mm-wedge-probe-adapter-for-tqfp-and-pqfp?cc=US&lc=eng&lsrch=true&searchT=e2613a These probes slide between the pins. I have used 3- and 8-pin version many times. They are very convenient especially if you need to probe several consecutive pins. They are not cheap (3-pin version is about $175, 8-pin is about $250) but if you need to probe 8 or 16 consecutive pins they are indispensable. |
| Jester:
I have two types for dense probing: 1) https://www.digikey.com/product-detail/en/chip-quik-inc/SMDFP-1B30/SMDFP-1B30-ND/2334389 2) https://www.ebay.com/itm/FP-2C-10-0-5-0-3mm-MicroGripper-1POS/221511824312?hash=item33932233b8:g:qXUAAOSwDk5T28X0 I have 20 of the 2nd style, would like to get more of the first style, the long probe comes in handy sometimes. Problem is they are expensive! |
| DaJMasta:
The price on those challenger clips is very appealing.... are there US distributors of them or suppliers that will ship to the US? |
| Doctorandus_P:
For reliable measurements on thin wires I tend to pre tinned ends of 0.2mm enameled wire to my measurement points. Solder the other end to some 0.1" header and clamp the header to the PCB, or glue it to the PCB with some hot snot, so you can still remove it if you want. Had a look on the challenger clips. According to Reichelt they go down to 0.8mm, which is too wide for my 0.5mm pitch STm32F103. A long time ago I found some Japanese high prcision mini grabbes. I believe they went down to 0.3mm but these were also very expensive. This may also work reasonably wel for temporary measurement setups, and is easy to make yourself: |
| coppercone2:
i don't like that. Maybe if those probes are real heavy. |
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