 |
|
| Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
| Reply |
|
|
LinkBack | Thread Tools | Display Modes |
|
#1
Posted to sci.electronics.repair
|
|||
|
|||
ST Part, what is it?
TO252, 3 lines:
ST CHN K922 LD33B What is it? --- ************************************************** **************** * KSI@home KOI8 Net The impossible we do immediately. * * Las Vegas NV, USA Miracles require 24-hour notice. * ************************************************** **************** ** Posted from http://www.teranews.com ** |
|
#2
Posted to sci.electronics.repair
|
|||
|
|||
|
ST Part, what is it?
On Fri, 15 Aug 2008 01:35:50 -0400, Sergey Kubushin put
finger to keyboard and composed: TO252, 3 lines: ST CHN K922 LD33B What is it? Just a WAG, but could it be a low dropout 3.3V regulator? - Franc Zabkar -- Please remove one 'i' from my address when replying by email. |
|
#3
Posted to sci.electronics.repair
|
|||
|
|||
|
ST Part, what is it?
Franc Zabkar wrote:
On Fri, 15 Aug 2008 01:35:50 -0400, Sergey Kubushin put finger to keyboard and composed: TO252, 3 lines: ST CHN K922 LD33B What is it? Just a WAG, but could it be a low dropout 3.3V regulator? It might be anything at all... I _HATE_ that practice of cryptic marking. I can understand that e.g. SOT-23 doesn't have enough space to put the full part number but TO252 is big enough to host a small poem. --- ************************************************** **************** * KSI@home KOI8 Net The impossible we do immediately. * * Las Vegas NV, USA Miracles require 24-hour notice. * ************************************************** **************** ** Posted from http://www.teranews.com ** |
|
#4
Posted to sci.electronics.repair
|
|||
|
|||
|
ST Part, what is it?
On Fri, 15 Aug 2008 13:12:04 -0400, Sergey Kubushin put
finger to keyboard and composed: Franc Zabkar wrote: On Fri, 15 Aug 2008 01:35:50 -0400, Sergey Kubushin put finger to keyboard and composed: TO252, 3 lines: ST CHN K922 LD33B What is it? Just a WAG, but could it be a low dropout 3.3V regulator? It might be anything at all... So this part is not out of some equipment that you are repairing? I _HATE_ that practice of cryptic marking. I can understand that e.g. SOT-23 doesn't have enough space to put the full part number but TO252 is big enough to host a small poem. I believe it could be an LD1117BDT33TR LDO 3.3V regulator: http://www.datasheetarchive.com/pdf-...DSA-605028.pdf Maybe 13 characters is a little too much for one stanza. ;-) Some evidence in regard to the marking ... http://www.micrel.com/_PDF/other/ana...id_marking.pdf Analog Marking Information LD33 MIC5206-3.3BM5 150mA Low-Noise LDO Regulator Fixed output http://www-user.tu-chemnitz.de/~uwen/audigy/ ST LD33 +3.3V voltage regulator http://www.diyaudio.com/forums/showthread/t-19911.html 4 regulators labelled something like 'LD33' (3.3v), LF50 (5V) ... http://www.szljk.com/PART%20No6.htm LD1117V33(MARKING:LD33V) http://www.usbid.com/search/AddPartNoLogin_action.cfm Search for LD33B and you will see ... ld33b Description Mfr Date Code Qty Country LD33B -- ST MICRO LOT: K922 300 US - Franc Zabkar -- Please remove one 'i' from my address when replying by email. |
|
#5
Posted to sci.electronics.repair
|
|||
|
|||
|
ST Part, what is it?
Franc Zabkar wrote:
On Fri, 15 Aug 2008 13:12:04 -0400, Sergey Kubushin put finger to keyboard and composed: Franc Zabkar wrote: On Fri, 15 Aug 2008 01:35:50 -0400, Sergey Kubushin put finger to keyboard and composed: TO252, 3 lines: ST CHN K922 LD33B What is it? Just a WAG, but could it be a low dropout 3.3V regulator? It might be anything at all... So this part is not out of some equipment that you are repairing? No. I simply got several tubes of those as a part of a big lot. I _HATE_ that practice of cryptic marking. I can understand that e.g. SOT-23 doesn't have enough space to put the full part number but TO252 is big enough to host a small poem. I believe it could be an LD1117BDT33TR LDO 3.3V regulator: http://www.datasheetarchive.com/pdf-...DSA-605028.pdf Maybe 13 characters is a little too much for one stanza. ;-) Yep, it is possible... Some evidence in regard to the marking ... http://www.micrel.com/_PDF/other/ana...id_marking.pdf Analog Marking Information LD33 MIC5206-3.3BM5 150mA Low-Noise LDO Regulator Fixed output http://www-user.tu-chemnitz.de/~uwen/audigy/ ST LD33 +3.3V voltage regulator http://www.diyaudio.com/forums/showthread/t-19911.html 4 regulators labelled something like 'LD33' (3.3v), LF50 (5V) ... http://www.szljk.com/PART%20No6.htm LD1117V33(MARKING:LD33V) http://www.usbid.com/search/AddPartNoLogin_action.cfm Search for LD33B and you will see ... ld33b Description Mfr Date Code Qty Country LD33B -- ST MICRO LOT: K922 300 US Eh, this is a biggest mystery  They are selling a part exactly like mineand there is no part No. either... Thank you anyways, I'll try to burn one... However it doesn't look exactly right to me because TO252 LD1117 parts from ST have "D" for package code, not "B"... --- ************************************************** **************** * KSI@home KOI8 Net The impossible we do immediately. * * Las Vegas NV, USA Miracles require 24-hour notice. * ************************************************** **************** ** Posted from http://www.teranews.com ** |
|
#6
Posted to sci.electronics.repair
|
|||
|
|||
|
ST Part, what is it?
On Fri, 15 Aug 2008 20:14:28 -0400, Sergey Kubushin put
finger to keyboard and composed: Thank you anyways, I'll try to burn one... However it doesn't look exactly right to me because TO252 LD1117 parts from ST have "D" for package code, not "B"... See page 3 of the datasheet. Then search for LD33A, LD33B, and LD33D at usbid.com. The part number pattern seems pretty convincing to me. - Franc Zabkar -- Please remove one 'i' from my address when replying by email. |
| Reply |
| Thread Tools | Search this Thread |
| Display Modes | |
|
|
Similar Threads
|
||||
| Thread | Forum | |||
| 2 Part Epoxy vs. One Part for Garage floor? | Home Repair | |||
| Specs that are part English and part metric | Metalworking | |||
| Part 1, Part 2 brass, Torbeck or Siamp? | UK diy | |||
| New Boiler = Room Stat = Part 'P' & Part 'L' question (long) | UK diy | |||
| Sourcing a Part L compliant part glazed stable door | UK diy | |||
Linear Mode
