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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The Value of Customization: So, using the 30 ohms resistors, patricktoday suggested, works like charm. Connecting the gate at 12V immediately runs the motor, so transistor piout discarded. Sep 22, 6. 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. You May Also Like: Post as a guest Name. Apr 5, 3. This means you are probably only getting 4V across the relay at best. Digital Tattoos Bend The Limits Digital tattoos rtansistor an interesting implementation rransistor an new category of “flexible electronics.


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

I suspect that your KNA is bad or low gain. Oct 2, 17, 5, Maybe I just needed a morning out with the bike and your help. I’m assuming your circuit looks like simulate this circuit — Schematic created using CircuitLab Assuming this is true, I think you’re running up against a characteristic of the Darlington – high saturation voltage.

Shouldn’t there be a resistor between the arduino pin and the transistor base? As a result, you have to transiztor the Darlington harder than you think you need to. Maybe this will be lower at 5V, I can’t say for sure. I simulated your motor circuit and and looks like it should work. If you don’t, you’ll get a turn-off voltage spike which may well kill your transistor.

Discussion in ‘ General Electronics Chat ‘ started by cincirSep 22, Sep 22, 7. Yes, my password is: No, create an account now. Seems like it should work fine with a single transistor.

Yes, my password is: Apr 5, 2. Apr 5, 1.

So, I tried to connect this transistor gate to the emitter of another KNA transistor, no luck either. I am a little confused. Email Required, but never shown. A darlington transistor configuration cannot turn-on down to anything close to 0V. Assuming this is true, I think you’re running up tranaistor a characteristic of the Darlington – high saturation voltage. In general the gain will be less if you have it backwards, but for a switching application transitor yours, you may never notice!


KN2222A Datasheet, Equivalent, Cross Reference Search

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But, before that I bought some TIP darlington in trwnsistor local store to replace the C, and it worked perfectly. Quote of the day.

By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service. I suppose that you have made certain of your trnsistor It works this way but when I turn it connect the other way Emitter – Base – Collector it still works.