KN2222A TRANSISTOR PDF

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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If you don’t, you’ll get a turn-off voltage spike which may well kill your transistor.

Korea Electronics (KEC)

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This means that the relay is only getting about 4. As a result, you have to drive the Darlington harder than you think you need to.

I’m going to put 8 diodes around the two H bridges thanks for the head up. As the title explains it, I have KnA x2 transistors connected as a Darlington pair connected at the ground side of a [JQC-3F T73 5v] relay The relay is connected to a 5v power supply. Your name or email address: I simulated your motor circuit and and looks like it should work. Apr 5, 4. Thank you for all the replies.

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Also, I saw somewhere a cap in parallel with the diode, is that a good idea? In general the gain will be less if you have it backwards, but for a switching application like yours, you may never notice!

So, using the 30 ohms resistors, patricktoday suggested, works like charm. Apr 6, 6. Could anyone explain what I am doing wrong?

Korea Electronics (KEC) – datasheet pdf

Sep 22, 3. Last edited by a moderator: Switching a 12vdc motor with a transistor Posted by Rich2 in forum: Sep 22, 1.

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Hence the collector and emitter are not interchangeable. I suppose that you have made certain of your wiring? According to the datasheet facing to the flat side of the transistor the squence from left to right is Collector – Base – Emitter. But these are at voltages of 10V.

I dont have 2sc so I used 2sc which is about half the spec of your transistor. Newbie with a 2N transistor problem Posted by neville s in forum: Problem with transistor and a motor Reply to Thread. Transistof, create an account now. Nov 4, 2, Yes, my password is: Thanks for the replay.

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Andy aka k 10 Sep 22, 4.

KN2222A works reverse bias

Apr 5, 5. I have little electronics background so maybe I’m missing something obvious. And then the C was working also fine. By clicking “Post Your Answer”, you acknowledge that you have read our updated terms of serviceprivacy policy and cookie policyand that your continued use of the website is subject to these policies.

Post as a guest Name. I suspect that your KNA is bad or low gain. When I check both datasheets their characteristics are not the same transostor smilar and according to the measurements all the Voltage and Current values are in range.

Mar 14, 20, 5, The coil voltage is given in the last digit or two of the part number, and may be 3, 5, 6, 9, 12, 18, 24, 36, or 48 volts.