April 22, 2021


TECHNICAL DATA. KN/A. EPITAXIAL PLANAR NPN TRANSISTOR. Revision No: 0. GENERAL PURPOSE APPLICATION. SWITCHING APPLICATION. KNA Description = General Purpose Transistor ;; Package = TO Part Category: Transistors Manufacturer: KEC Corporation Description: Small Signal Bipolar Transistor, A I(C), 40V V(BR)CEO, 1-Element, NPN, Silicon, TO -.

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Discussion in ‘ General Electronics Chat ‘ started by cincirSep 22, KNA works reverse bias Reply to Thread. Sep 22, 1. Sep 22, 3 0. According to the datasheet facing to the flat side of the transistor the squence from left to right is Collector – Base – Emitter.

It works this way but when I turn it connect the other way Emitter nk2222a Base – Collector it still works. Could anyone explain what I am doing wrong?

Sep 22, 2. Nov 4, 2, This is actually normal behavior. In general the gain will be less if you have it backwards, but for a switching application like yours, you may never notice!


KN2222A Datasheet PDF

Sep 22, 3. Oct 2, 17, 5, This does not affect your observation transistkr please note that there are two conflicting pin-outs for 2N Sep 22, 4.

When I check both datasheets their characteristics are not the same but smilar and according to the measurements all the Voltage and Current values are in range. I am a little confused. Sep 22, 5.

KNA (KEC) – General Purpose Transistor, Package = TO | eet

Last edited by a moderator: Sep 22, 6. Sep 22, 7. Sep 22, 8.

The impurity doping concentration profile at the base-emitter junction is different from that of the base-collector junction. Hence the collector and emitter are not interchangeable. Sep 23, 9. Mar 14, 20, 5, If you interchange the collector and emitter of a modern planer BJT transistor, the Beta transisttor be much less and the collector breakdown voltage is now equal to the base-emitter breakdown which is usually only about 5V.


Forward and reverse bias – diode Posted by KevinEamon in forum: Which is forward bias and which is reverse bias?

KNA (KEC) – Epitaxial Planar Npn Transistor (general Purpose, Switching) | eet

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