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"japanese" Transistors To "european"
"japanese" Transistors To "european"
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Old 21st February 2006, 12:25 PM   #1
MYLEY is offline MYLEY  Ireland
diyAudio Member
Join Date: Feb 2006
Location: i live in Donegal,Ireland.
Default "japanese" Transistors To "european"

Hello.Does anybody know if there is a conversion table to convert "JAPANESE" transistors to "EUROPEAN".I have a Toyota radio from a Japanese import and need a surface mount transistor with the markings "BC QU".
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Old 21st February 2006, 01:57 PM   #2
dnsey is offline dnsey  United Kingdom
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Join Date: Mar 2004
Location: Shropshire, England
There always used to be 'equivalents books', but I don't know if there are any covering SM devices. Just look up the parameters, and find a match via data sheets.
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Old 22nd February 2006, 01:37 PM   #3
MYLEY is offline MYLEY  Ireland
diyAudio Member
Join Date: Feb 2006
Location: i live in Donegal,Ireland.
Thanks.I have tried entering markings on various sites to identify the component,but to no avail.I have also contacted Nikko-Electronics but they to are unaware of such a component,as are CPC.I wonder if the markings,BC QU,is a code used by Sony,or in this case, Fujitsu Ten?I have noticed that Sony tend to use components with similar markings,does anybody know what the markings refer to?Thanks.
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Old 22nd February 2006, 07:20 PM   #4
AndrewT is offline AndrewT  Scotland
Join Date: Jul 2004
Location: Scottish Borders
I believe the two and three digit numbers are simply manufacturer codes, probably intended for mass production.

Since most will be buying on a 5000 reel the code just confirms that they have the labelled reel correctly loaded on the assembly machine.

I would not expect these codes to be unique, there are just too few digits.

You will need the manufaturer and chip name to identify the type.
regards Andrew T.
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Old 23rd February 2006, 09:02 PM   #5
Onra is offline Onra  Germany
diyAudio Member
Join Date: Jul 2005
Location: near Frankfurt/M
Default Foto wanted

Do you have a picture available (with readable marking, if possible)?
Same marking may be used for different devices in different packages.
Without package size youŽll hardly find the corrct device.
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