KNA Transistor Datasheet pdf, KNA Equivalent. Parameters and Characteristics. 22 Sep I have a relay driver circuit which I used a KNA NPN transistor to switch 5V relay grounding. According to the datasheet facing to the. KNA from KEC Corporation. Find the PDF Datasheet, Specifications and Distributor Information.
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Hfe is only really kn2222a to be about 50 on the first transistor and possibly about on the kn2222a transistor. Sep 22, 6.
Your name or email address: Oct 2, 16, 5, Which is forward bias and which is reverse bias? This means that the relay is only getting about 4. If kn2222a interchange the collector and emitter of a modern planer BJT transistor, the Beta will be much less and the collector breakdown voltage is now equal to the base-emitter breakdown which is usually only about 5V.
Sep 22, 4.
Solutions from a Kn2222a This article covers the various roadblocks kn2222 in a new design and how they were troubleshot and overcome.
Hence the collector kn2222a emitter are not interchangeable. There are nine different relays described on the kn2222a which differ only in the coil voltage.
KNA (KEC) – General Purpose Transistor, Package = TO | eet
All this little factoids make me think your expectations of the transistor, kn2222a wired as a darlington, are too high. In any event, compound transistor connections aren’t magic. Sep 22, 1. Sep 22, kn2222a.
Korea Electronics (KEC)
Assuming this is true, I think you’re kn2222a up against a characteristic of the Darlington – high saturation voltage. The coil voltage is given in kn2222a last digit or two of the part number, and may kn2222a 3, 5, 6, 9, 12, 18, 24, 36, kn2222a 48 volts. Sign up using Email and Password.
kn2222a Last edited by a moderator: 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. Capacitor, Reverse bias diode and resistor circuit Posted by 13th Warrior in forum: A darlington ,n2222a configuration cannot turn-on down to anything close to 0V. In this configuration, the high gain does not carry over to the situation where you want to turn the transistor hard on.
Kn2222a 22, 5. Posted by mujizat in kn2222a Sep 22, 7. Could kn2222a explain what I am doing wrong? As the kn2222a explains it, I have KnA x2 transistors connected as kn2222a Darlington kn2222a connected at the ground side of a [JQC-3F T73 5v] relay Kn2222a relay is connected to a 5v power supply. Sign up using Facebook.
Kn2222a does not affect kn2222a observation but please note that there are two conflicting pin-outs for 2N Always use one of these. In kn2222a the gain will be less if you have it backwards, but for a switching application like yours, you may never notice! Nov 4, 2, Kn2222a kj2222a, 19, 5, Sep 22, 2. Also note the catch diode. Sep 23, 9.