HJ 13002 PDF

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.

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If you 113002 have a DMM, use ohms law to build this. Use of this site constitutes acceptance of our User Agreement and Privacy Policy. With a DMM, you can test the legs and each hjj that has low resistance is a forward biased junction, any pair that has high resistance is a reverse biased junction. So I’m attempting my first pedal, and I’m totally new to electronics altogether. I found this in a light bulb, but can’t tell which leg is which.

HJ_PDF Datasheet Download IC-ON-LINE

Please read this first! 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.

130002 The alternative is that the P side must be at least more positive than the N side respectively. It lights up if the diode of the transistor is forward biased. Thank you my friend, this is very helpful.


Doing so would actually improve your knowledge and and your soldering skill and get you some really cheap tools, although DMMs these days aren’t very expensive.

This is an open community for the do-it-yourself pedal builders of reddit! I just cracked open this one hoping to illuminate which pin is which.

If you have a DMM, you should read something like megaohms between a forward biased base-collectopr and a forward biased base-emitter. 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.

FYI this is a high voltage transistor designed for switching operation, very commonly found in compact fluorescent lamps. 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 Info about building and modding: Put two of the legs between the LED.


If the LED still lights up, then the legs are of a diode in ‘proper orientation’. Welcome to Reddit, the front page of the internet. You could test this yourself you know. Can anybody identify which leg is which from the insides?

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Plastic Box Injection Mould (HJ13002)

Want to add to the discussion? Not to worry, I have 2 exactly the same.

In a PNP, the base is the N, so it must be negative with respect to the emitter and it will be biased bj current will flow. Become a Redditor and subscribe to one of thousands of communities. Sorry if this is a very pedestrian question, I’ve already tried my best on google: Submit a new text post. You will, of course, read the same unreadably high ohm resistance between collector-emitter regardless of bias.

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. In NPN, the opposite is true. C is probably hu tiny pad, B is probably the long rail pad, and E is the large square pad.

Looking for troubleshooting help? If you don’t have a DMM, use ohms law to build this https: You should read open circuit or beyond the measurement of your DMM in ohms for reverse biased base-collector or base-emitter.

It’s dead, you need a new transistor. Can anybody help me identify the legs of this transistor?