[sdiy] Roland RS101(?) boards

Roy J. Tellason rtellason at blazenet.net
Sun Dec 19 03:45:12 CET 2004


On Saturday 18 December 2004 07:19 pm, Heitor Alves wrote:

> Part number: TC4011
> Category:
> -> Logic
> -> Gates
> -> CMOS/BiCMOS->4000 Family
> Description:
> CMOS 2 Input NAND Gate
> I have the datasheet

Pretty standard stuff there...

> A LOT (63) Transistors C945 (i assume BC945 but no info on it)

Bad assumption.  Much more likely to be 2SC945,  a pretty common number.  I 
don't have a datasheet but my info says NPN Si, 60V, 100mA, 250mW,  beta 
90-600 (the beta on Japanese numbers like this can be specified more narrowly 
by a letter following the markings given).

> 2 pcs of A562 (completly unknown to me and found nothing...)

Probably a 2SA562,  PNP Si, 35V, 500mA, 500mW, 70-240.

> 1pcs of NEC A733 transistor ( i found a 2PA733 PNP General Purpose
> Transistor)

More likely a 2SA733, PNP Si, 50V, 100mA, 250mW, 90-270.





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