if you look at it if the base is at the top, is the emitter on the left or the right of the transistor
2007-03-11 07:53:28 · 5 answers · asked by macgyver 1 in Science & Mathematics ➔ Engineering
if it can be on either side than how can you find the emitter on the transistor
2007-03-11 07:55:56 · update #1
if it can be on either side than how can you find the emitter on the transistor
2007-03-11 07:55:57 · update #2
The emitter of a transistor, in a diagram, is the lead denoted by the arrow. On an actual transistor, you will have to look up a data sheet or use a digital multimeter to check the resistance between leads. For an NPN resistor, you should have a low resistance from base to emitter, and base to collector. Emitter and collector to base should be high.
For a PNP, you should have a high resistance from base to emitter, and base to collector. Low resistance from emitter and collector to base.
If you have a "forward voltage" setting on a multimeter, you can tell which is the emitter by the characteristic 0.6V drop from base to emitter, or emitter to base.
2007-03-13 05:38:47 · answer #1 · answered by joshnya68 4 · 0⤊ 0⤋
Goto www.datasheetcatalog.com and download a datasheet for the transistor.
2007-03-12 02:36:07 · answer #2 · answered by scott p 6 · 0⤊ 0⤋
Search through Google for a data sheet of the transistor in which you are interested, e.g. "2N3904 datasheet"
It will show a diagram of the connections.
2007-03-11 22:00:49 · answer #3 · answered by dmb06851 7 · 0⤊ 0⤋
depends on the transistor, look up the datasheet
2007-03-11 14:55:57 · answer #4 · answered by king ride dot 2 · 0⤊ 0⤋
check the datasheet. good habit to get into
2007-03-11 18:52:38 · answer #5 · answered by John 5 · 1⤊ 0⤋