spacer spacer spacer spacer


Post ReplyPost New Topic
< Prev Topic Next Topic >
Member - Posts: 44
Member spacespace
Joined: September 12, 2011
Location: Alberta, Canada
Posted: January 19, 2018 at 9:54 AM / IP Logged Link to Post Post Reply Quote --weezl--
I'm doing my level 2 heavy duty course right now, electronics section, instructor is talking about PNP vs npn transistors (I know they aren't relays, but they are similar in many ways) instructor says he has a very easy way to remember npn vs PNP, but can't tell us because it's offensive and he could get in a LOT of trouble...
Does anyone have any idea what this method would be?
I found a lot of things that say
PNp means
Pointing iN
NPN means
Not Pointing iN
But this is bugging the whole class, as to what the "dirty" version is.
no signature needed
Member - Posts: 3
Member spacespace
Joined: September 02, 2016
Location: Illinois, United States
Posted: January 22, 2018 at 6:00 PM / IP Logged Link to Post Post Reply Quote lmlisak
I was not taught that...
I dont want to imagine an instructors take on a xistor..PNP vs NPN - Last Post -- posted image.
Member - Posts: 7
Member spacespace
Joined: January 07, 2017
Location: Pennsylvania, United States
Posted: January 27, 2018 at 12:21 AM / IP Logged Link to Post Post Reply Quote astuff
Left off a word:    PNP = Pointing iN Please
Member - Posts: 4
Member spacespace
Joined: March 06, 2018
Location: Arizona, United States
Posted: April 07, 2018 at 7:47 PM / IP Logged Link to Post Post Reply Quote jaybonez
Pnp means positive negative positive and npn negative positive negative and I am almost one hundred percent that this refers to the leads that come out of the bottom so the pnp would mean the first lead is positive and the middle lead is negative and the third lead is positive .and vise versa or the npn
i am an idiot 
Platinum - Posts: 13,334
Platinum spaceThis member consistently provides reliable informationspace
Joined: September 21, 2006
Location: Louisiana, United States
Posted: April 07, 2018 at 8:17 PM / IP Logged Link to Post Post Reply Quote i am an idiot
On a schematic diagram, the symbol for a transistor has an arrow on it. The arrow points to the negative junction. Symbol for npn
symbol for pnp
NPN not pointing in. The arrow points away from the center.
PNP pointing in Please The arrow points to the center junction. (Known as the Base)

If you wish to post a reply to this topic, you must first login.
If you are not already registered, you must first register.

  Printable version Printable version Post ReplyPost New Topic
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot delete your posts in this forum
You cannot edit your posts in this forum
You cannot create polls in this forum
You cannot vote in polls in this forum

Follow Follow on Facebook
Saturday, June 12, 2021 • Copyright © 1999-2021, All Rights Reserved Privacy Policy & Use of Cookies
Disclaimer: *All information on this site ( ) is provided "as is" without any warranty of any kind, either expressed or implied, including but not limited to fitness for a particular use. Any user assumes the entire risk as to the accuracy and use of this information. Please verify all wire colors and diagrams before applying any information.

Secured by Sectigo spacer spacer spacer
Top spacer spacer