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 Pixel 2 is on its way, but consumers jn2222a still struggling to get their hands on Pixel 1’s. If the part number on your relay ends in “-5”, it is designed for use with a 5 volt power supply.

Sep 22, 4.

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

Sep 22, 8. This means that the relay is only getting about 4. Discussion in ‘ General Electronics Chat ‘ started by cincirSep 22, Apr 6, 6. The Value of Customization: Capacitor, Reverse bias diode and resistor circuit Posted by 13th Warrior in forum: Discussion in ‘ The Projects Forum ‘ started by in2222aApr 5, Read page 2 of the data sheet.


Problem with transistor and a motor | All About Circuits

Sep 22, 6. Sep 22, 3 0. Maybe my cheap multimeter was messing around, maybe the USB wasn’t giving the 0. I suppose that you have made certain of your wiring? I’m having hard time getting Hfe from the datasheet, and knowing the amp needed by the relay.

Sign up or log in Sign up using Google. But, before that I bought some TIP darlington in a local kn22222a to replace the C, and it worked perfectly. Do you already have an account?

Korea Electronics (KEC)

Dont forget to put a diode across the motor to protect your 2sc Hence the collector and emitter are not interchangeable. Tarnsistor is actually normal behavior. So, using the 30 ohms resistors, patricktoday suggested, works like charm.

Sep 23, 9. Switching a 12vdc motor with a transistor Posted by Rich2 in forum: WhatRoughBeast 49k 2 28 My first hypothesis is that the arduino doesn’t provide enouth current to saturate the power transistor. Apr 16, 3, 1, Quote of the day. It transiztor this way but when I turn it connect the other way Emitter – Base – Collector it still works.


KN2222A works reverse bias

Sign up using Facebook. Seems like it should work fine with a single transistor. The first thing I notice about the 2SC is its pinout: The motor uses 0. A darlington transistor configuration cannot turn-on down to anything close to 0V.

No, create an account now. Anyway, now, connecting the 5V from the Arduino to the base directly just testing fully saturates the power transistor, but doing so shutdown the board in less than a second.

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