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NEC TG-16/TE/TurboDuo => TG/PCE Repair/Mod Discussion => Topic started by: Rosser on August 13, 2014, 01:36:39 PM

Title: Need Replacement transistor info GT/TurboExpress
Post by: Rosser on August 13, 2014, 01:36:39 PM

When I was doing a cap replacement the front little leg of the transistor where this guy soldered his missing trace to broke off could some tell me the value all I can make out is the code BA
(http://www.pcenginefx.com/forums/index.php?action=dlattach;topic=5015.0;attach=367;image)
thanks

Title: Re: Need Replacement transistor info GT/TurboExpress
Post by: Fidde_se on August 13, 2014, 09:53:38 PM

The D502 is most likely a BCW61A

it could be a BAS40PT as it's also a SOT-23 with the marking BA....
could even be MMBZ5241B as it's also a SOT-23 with the marking BA...........

but by the picture it seems that the front leg of the SOT is still intact.

Title: Re: Need Replacement transistor info GT/TurboExpress
Post by: Rosser on August 15, 2014, 04:22:51 PM

The picture is not of my system its from someone on the forum. Is there a non-smd transistor that is equivalent that I could try?
thanks for the assistance

Title: Re: Need Replacement transistor info GT/TurboExpress
Post by: Xenogears on May 02, 2018, 07:58:29 PM

Does "D" not mark a Diode and "Q" is for Transistors ? "T" -  Transformator... ?

Title: Re: Need Replacement transistor info GT/TurboExpress
Post by: Fidde_se on May 03, 2018, 01:41:26 AM

Yes but a diode can be in a SOT-23 package.

(http://i.stack.imgur.com/YJ5SQ.png)

Title: Re: Need Replacement transistor info GT/TurboExpress
Post by: Xenogears on May 03, 2018, 09:36:07 AM

Yes, you are right - I thought about Rosser:

".... Is there a non-smd transistor that is equivalent that I could try? thanks for the assistance"