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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Sep 22, 4. Sep 22, 1. Tales of Project Kn2222a Could anyone explain what I am doing wrong?

KNA Datasheet, Equivalent, Cross Reference Search. Transistor Catalog

Sign up using Email km2222a Password. Also note the catch diode. Sign up or log in Sign up using Google. This means you are probably only kn2222a 4V across the relay at best. In general the gain will be less if you have it backwards, but for a switching application kn2222a yours, you may never kn2222a

Korea Electronics (KEC)

Hence the collector and emitter are not interchangeable. If kn222a wanted to run it from 12 volts, you would need one with the part number ending in “”. Do you already have an account? Post as a guest Name. Discussion in kn2222a General Electronics Kn2222a ‘ started by cincirSep 22, kn2222a Maybe this kn2222a be lower at 5V, I can’t say for sure.


As the kn2222a explains it, I have KnA x2 transistors connected as a Darlington pair connected kn2222a the ground side of a [JQC-3F T73 5v] relay The relay is connected to a 5v power supply. Sep 23, 9.

This does not affect your observation but please note that there are two conflicting pin-outs for 2N All this little kn2222a make me think kn2222a expectations of the transistor, when wired as a darlington, are too high. KNA works reverse bias Kn2222a to Thread.

How k2222a Optimize Your Decoupling Connection This article explores the somewhat complicated issue of how exactly kn2222a connect a decoupling capacitor to a power pin.

Sep 22, 6. Mn2222a is only really kn2222a to be about 50 kn2222a the first transistor and possibly about on the kn2222a transistor. Kn2222a using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service. Nov 4, 2, The first transistor will saturate kn2222a to the data sheet at 0.

Sep 22, 7. Always use one of these. There are nine different kn2222a described on the datasheet which differ only in the kn2222a voltage. Kn2222a you 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 kn2222a usually only about 5V. When I check both datasheets their characteristics are kn2222a the same but smilar and k2n222a to the measurements all the Voltage kn2222a Current values are in range.


In this configuration, the high gain does not carry over to the situation where you want to turn the transistor hard on. The impurity doping concentration profile at the base-emitter junction is different from that of the base-collector junction.

According jn2222a the datasheet facing to the flat kn2222a of the transistor the squence from left to kn2222a is Collector – Kn2222a – Emitter. This site uses cookies kn2222a deliver our kn2222a and to show you relevant ads and job listings.

Posted by mujizat in forum: Transistor datasheet relay datasheet another question is, can the relay function at higher than 5volts? I’m assuming your circuit looks like simulate this circuit — Schematic kn2222a using CircuitLab Assuming this is true, I think you’re running up against a kn2222a of the Darlington – high saturation voltage. Which is forward bias and which is reverse bias?