Part Number: HJ Function: NPN Epitaxial Silicon Transistor Maker: Unspecified Pinouts: HJ datasheet. Description: Datasheet. Type Designator: MJE Material of Transistor: Si. Polarity: NPN. Maximum Collector Power Dissipation (Pc): 40 W. Maximum Collector-Base Voltage |Vcb|. HJ Hefei Hejing datasheet pdf data sheet FREE Datasheets (data sheet) search for integrated circuits (ic), semiconductors and other electronic.
I don’t have a DMM but I’ll have to hn into it. Transistors function in their active region as class A amplifiers thanks to the base-collector being reverse biased while the base-emitter is forward biased. I found this in a light bulb, but can’t tell which leg is which.
The base must also be negative with respect to collector and current will flow. FYI this is a high voltage transistor designed for switching operation, very commonly found in compact fluorescent lamps.
Basically, you create a circuit that needs the transistor to behave with X amount of gain otherwise the current is too weak to light the LED. Looking for troubleshooting help? I made it simpler from the rambling.
When the hk rises high enough it would activate the junction and conduct. So I’m attempting my first pedal, and I’m totally new to electronics altogether. It’s dead, you need a 130022 transistor. If you don’t have a DMM, use ohms law to build this.
Sorry if this is a very pedestrian question, I’ve already tried my best on google: You will, of course, read the same unreadably high ohm resistance between collector-emitter regardless of bias. Now amend that circuit so that the negative side of the battery or ground if you want to call it is touching one leg of your transistor, and another leg is touching the LED. Want to add to the discussion? Put two of the legs between the LED.
The alternative is that the P side must be at least more positive 113002 the N side respectively. Please read this first! Not to worry, I have 2 exactly the same. The silicon is normally bonded to the collector, which would match the ECB left to right, flat writing side facing you, pins facing downwards pinout of the CD If you don’t have a DMM, use ohms law to build this https: You could test this yourself you know.
You can create your own test equipment for general guidelines if you’re creative. In a PNP, the base is the N, so it must be negative with respect to the emitter and it will be biased and current will flow.
Then test the other two legs. Im going to assume the emitter is the large pad, so the base is going to be one of the others, and the collector is obviously the last.
You should read open circuit or beyond the measurement of your DMM in ohms for reverse biased base-collector or base-emitter. Log in or sign up in seconds. For instance, a beta gain transistor circuit would light up one LED if the gain is overa different LED if its over but underand so on.
Can anybody help me identify 133002 legs of this transistor? I know the Base is typically in the middle, but i googled the numbers from the face,HJ, B1 and found a datasheet for the HJ Transistor, which said the Base was the leftmost leg.
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Doing so would actually improve your knowledge and and your soldering skill and get you some really uj tools, although DMMs these days aren’t very expensive. In NPN, the opposite is true.
Welcome to Reddit, the front page of the internet. Submit a new link. Thank you my friend, this is very helpful.
With a DMM, you can test the legs and each pair that has low resistance is a forward biased junction, any pair that has high resistance is a reverse biased junction.