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help picking transistor Answered

me no get no transistors. me need help. me using ltc4060 chip and me need help picking the pnp transistor. heres datasheet
http://www.linear.com/pc/downloadDocument.do?navId=H0,C1,C1003,C1037,C1078,C1088,P7601,D5235

it's on page 14 - 15

I'm using 3 cells and a charge current of 35 mA

BTW I'm not stupid, just never really got how to use transistors

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LasVegas (author)2007-10-20

You need a standard signal PNP transistor.

The easy way to remember how NPN and PNP differ in reference to the arrow is:

NPN = Never Points iN
PNP = Points iN Positively

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guyfrom7up (author)LasVegas2007-10-20

so any pnp transistor will work for this?

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NachoMahma (author)guyfrom7up2007-10-20

. A 2N414 (general-purpose germanium) should do the job (rated 200mA, IIRC). Double-check that - it's been a loooong time since I worked with xistors.

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guyfrom7up (author)NachoMahma2007-10-20

isn't that a npn transistor?

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LasVegas (author)guyfrom7up2007-10-20

The 2N414 is a PNP transistor.

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NachoMahma (author)guyfrom7up2007-10-20

. Could be. The Related Electronics Parts section of this page only lists PNPs - didn't look any further.
. The 2N414 is what I used in a lot of projects when I was a kid. Just a plain-Jane, general-purpose transistor.

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NachoMahma (author)LasVegas2007-10-20

. I was taught Not Pointing iN. No memory aid for PNP - if it wasn't NPN, it had to be PNP. :)

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