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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. |
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#1
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ST CHN k449 78M
Hello,
Do you know the type or designation of the composant ST CHN k449 78M Thanks for your response. Best regard |
#2
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ST CHN k449 78M
On Fri, 12 Aug 2011 12:57:15 -0700 (PDT), Gilles Esprit
put finger to keyboard and composed: Do you know the type or designation of the composant ST CHN k449 78M ST = ST Microelectronics CHN = country of manufacture, China k449 = YWW date code, ie week 49 of 2004 ??? 78M = part number, marking code ??? I suspect the part may be a 3-terminal, linear, positive voltage regulator, but it would help a lot to see a photo. At least tell us the number of pins, package style, application. - Franc Zabkar -- Please remove one 'i' from my address when replying by email. |
#3
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ST CHN k449 78M
"Gilles Esprit" Do you know the type or designation of the composant ST CHN k449 78M ** When anyone needs to identify a particular semiconductor - they use ALL the available info. This includes exactly what the part looks like, the section of the circuit it came from, the country of origin of the equipment, the make and model of the equipment and crucially the AGE of the equipment. You have left all this out. ..... Phil. |
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