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1. 

   josheeg
   Member

   bc237 apears to be only a to92 is a different chip used as a transistor?

   BC237CTA I seen is cheap but not surface mount. I was wondering if it was a documentation bug.

   Also I can not find the battery charging chip in a supplier.

   Posted 5 years ago #
2. 

   poslathian
   LeafLabs

   weve had some sourcing issues from run to run. Common parts are hard to source these days, for whatever reason, including things like tantalum caps, clocks, regulators, etc. We try and pick parts that we will be able to source for a long time to come, but weve had to hot swap at fab time a few times.

   Posted 5 years ago #
3. 

   josheeg
   Member

   can maple users please tell me what is on the transistor packages???
   Do you have the receipts or mouser orders in your email that says the manufacturer or mouser part number?

   Posted 5 years ago #
4. 

   josheeg
   Member

   I would prefer the lipol battery charger and maple does not have power glitches or something like having to swap transistors and debug them not knowing what is there means I don't know what to put there at all.

   NPN PNP any specific features...

   Posted 5 years ago #
5. 

   poslathian
   LeafLabs

   there are two npn external transistors on Maple labeled Q1 and Q2 on the schematic. There are related to the the USB connect/disconnect scheme.

   they say 6C on the package, which is of type SOT23

   Posted 5 years ago #
6. 

   okie
   Administrator

   Those transistors are manufacturer part no. BC 817K-25 E6327

   Posted 5 years ago #
7. 

   josheeg
   Member

   BC817K25WE6327XT is a SOT-323 what I see in mouser and

   BC817K25E6327XT is a SOT-23 unfortunatly that one is out of stock

   BC 817K-25 E6327 is the digikey part number for a sot23

   so manufacturers part numbers are different between digikey and mouser I thought they would be the same.

   This still does not show up in digikey.

   BQ24010DRCA
   the battery charger.
   I looked up BQ24010 I do not know if that is the same.
   I would like to know so it doen't damage my battery or circuit.

   Posted 5 years ago #

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