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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Yes, I certainly did check many times.
Korea Electronics (KEC)
In any event, compound transistor connections aren’t magic. Sep 23, 9.
Maybe this will be lower at 5V, I can’t say for sure. Apr 5, 3. Hfe is only really guaranteed to be about 50 on the first transistor and possibly about on the 2nd transistor. Also note the catch diode.
Your name or email address: I simulated your motor circuit and and looks like it should work. The impurity doping concentration profile at the base-emitter junction is different from that of the base-collector junction.
Korea Electronics (KEC) – datasheet pdf
Sign up using Facebook. Sep 22, 3 0. Post as a guest Name. Which is forward bias and which is reverse bias? Apr 5, 2. No, create an account now. Email Required, but never shown. According to the datasheet facing to the flat side of the transistor the kb2222a from left to right is Collector – Base – Emitter.
Apr 5, 1. The coil kn22222a is given in the last digit or kn222a of the part number, and may be 3, 5, 6, 9, 12, 18, 24, 36, or 48 volts. This means you are probably only getting 4V across the relay at best. 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.
KNA NTE Equivalent NTEAP NPN audio transisto – Wholesale Electronics
Andy aka k 10 KNA works reverse bias Reply to Thread. Nov 4, 2, So, using the 30 ohms resistors, patricktoday suggested, works like charm. Dont forget to put a diode across the motor to protect your 2sc Posted by mujizat in forum: And then the C was working also fine. The first transistor will saturate according to the transitor sheet at 0.
Connecting the gate at 12V immediately runs the motor, so transistor piout discarded. Quote of the day. Could anyone explain what I am doing wrong? If the part number on your relay ends in “-5”, it is designed for use with a 5 volt power supply. Feb 23, 3 0. But, before that I bought some TIP darlington in a local store to replace the C, and it worked perfectly. The Pixel 2 is on its way, but consumers are still struggling to get their hands on Pixel 1’s. If you don’t, you’ll get a turn-off voltage spike which may well kill your transistor.
I was just speculating the base current might be pulling down your voltage source you could measure the base voltage to check for that. Sep 22, 6. 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. Feb 12, The issue with Google’s distribution isn’t what might you think.