Difference between revisions of "Identify that chip"
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* https://www.eevblog.com/forum/beginners/smd-part-id/msg5706247/?topicseen#msg5706247 beware of the camera flipping the picture. | * https://www.eevblog.com/forum/beginners/smd-part-id/msg5706247/?topicseen#msg5706247 beware of the camera flipping the picture. | ||
* https://www.eevblog.com/forum/repair/identify-motorola-transistor/ - Transistor. Motorola. Only labeled with 1993. Someone mentions it might be one from a 2SC or 151 series where the parts were only labeled with the suffix (not the 151 prefix). | * https://www.eevblog.com/forum/repair/identify-motorola-transistor/ - Transistor. Motorola. Only labeled with 1993. Someone mentions it might be one from a 2SC or 151 series where the parts were only labeled with the suffix (not the 151 prefix). | ||
| + | * https://www.eevblog.com/forum/repair/hctr6010a-integrated-circuit/msg5773985/?topicseen#msg5773985 http://www.bitsavers.org/components/hughes/1984_Hughes_CMOS_Databook.pdf chips starting with HCTR, are a hughes chip. There is a link to their databook. | ||
==Identify that Switch/Connector== | ==Identify that Switch/Connector== | ||
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* https://www.ntepartsdirect.com/ENG/PRODUCT/EL01-015 NTE Physical Copy of above (also has some other information besides the cross reference.) | * https://www.ntepartsdirect.com/ENG/PRODUCT/EL01-015 NTE Physical Copy of above (also has some other information besides the cross reference.) | ||
* https://www.ntepartsdirect.com/ENG/PRODUCTLIST/CATALOGS A couple other books here. | * https://www.ntepartsdirect.com/ENG/PRODUCTLIST/CATALOGS A couple other books here. | ||
| + | EDIT: Well, NTE went out of business, but I still have their reference book at least. It's a useful book. | ||
| + | * https://vtda.org/books/Electronics/Digital%20IC%20Equivalents.pdf - Digital IC Equivalents - A.M. Hoebeek. (Saved in elec2025_lookupbook) | ||
===Package Code Search=== | ===Package Code Search=== | ||
These are common as dirt. But all appear to be proprietary. They really shouldn't be called SMD marking codes, as there are plenty of other components that need to be looked up. | These are common as dirt. But all appear to be proprietary. They really shouldn't be called SMD marking codes, as there are plenty of other components that need to be looked up. | ||
Latest revision as of 17:59, 3 October 2025
Chip golf.
List
- https://www.eevblog.com/forum/repair/unknown-dc-dc-chip-of-si-9110-differential-probe/ - +12 and -12 switcher. No feedback divider. Turns out to be the max743
- https://www.eevblog.com/forum/projects/identify-an-old-(mid-1970s)-10-bit-adc/ - Old adc module. More pins than usual adcs of the 70's. Turns out to be the ADC-10Z.
- https://www.eevblog.com/forum/repair/cant-find-this-ic-its-on-msi-optix-ag32c-pc-monitor/ Basic understanding of HDMI connectors leads to the answer, that of a TVS diode array. "If you know what to expect for a given circuit". It is not stated how the particular code was found, and searching ic mark websites does not show this result. Project: Find a similar array on a scrap HDMI connector circuit.
- https://www.eevblog.com/forum/beginners/help-identify-these-possibly-rfmicrowave-components/ - check russian internet for russian chips.
- https://www.eevblog.com/forum/beginners/mystery-relic-microchip-sot-style-chip-identify-please-looked-everywhere/ mitsumi not microchip
- https://www.eevblog.com/forum/beginners/old-component-identification-please/ - It's somewhat evident what is going on. 80's/90's schematic based on a low voltage motor. Temperature compensating diodes and a bypass cap on the motor. Look at the first post and the picture a bit, before reading the second post so as to not spoil it for yourself.
- https://www.eevblog.com/forum/projects/need-help-identifying-this-part-(zener-diode)/msg5699803/?topicseen#msg5699803 note the LF for littelfuse.
- https://www.eevblog.com/forum/beginners/smd-part-id/msg5706247/?topicseen#msg5706247 beware of the camera flipping the picture.
- https://www.eevblog.com/forum/repair/identify-motorola-transistor/ - Transistor. Motorola. Only labeled with 1993. Someone mentions it might be one from a 2SC or 151 series where the parts were only labeled with the suffix (not the 151 prefix).
- https://www.eevblog.com/forum/repair/hctr6010a-integrated-circuit/msg5773985/?topicseen#msg5773985 http://www.bitsavers.org/components/hughes/1984_Hughes_CMOS_Databook.pdf chips starting with HCTR, are a hughes chip. There is a link to their databook.
Identify that Switch/Connector
- https://www.eevblog.com/forum/projects/searching-for-a-particular-square-illuminated-push-button/ - typical intercom, plastic square buttons with text labels on the inside.
- https://www.eevblog.com/forum/repair/replacement-for-fluke-845ab-opr-switch/ - 3d print, or otherwise make your own replacement.
Resources
- https://caps.wiki/wiki/Capacitor_Brands
- http://nte01.nteinc.com/nte/NTExRefSemiProd.nsf/$$Search_Dist?OpenForm NTE's substitution search. Note that asterisks may or may not help in your search (compare 7400 to *7400*)
- https://www.ntepartsdirect.com/ENG/PRODUCT/EL01-015 NTE Physical Copy of above (also has some other information besides the cross reference.)
- https://www.ntepartsdirect.com/ENG/PRODUCTLIST/CATALOGS A couple other books here.
EDIT: Well, NTE went out of business, but I still have their reference book at least. It's a useful book.
- https://vtda.org/books/Electronics/Digital%20IC%20Equivalents.pdf - Digital IC Equivalents - A.M. Hoebeek. (Saved in elec2025_lookupbook)
Package Code Search
These are common as dirt. But all appear to be proprietary. They really shouldn't be called SMD marking codes, as there are plenty of other components that need to be looked up.
- http://www.smdmark.com/en-US/search/code?id=AAA - This one you can use without JS, just add the code where appropriate in the URL. Some results require logging in...
- http://markingcodes.com/search/c/AAA - Same as previous for adding code. Shows a bit more results, but requires JS to change pages.
- Where is the public wiki search? Too much greed, too many people trying to monetize something which should just be a database.
