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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You will, of course, read the same unreadably high ohm resistance between collector-emitter regardless of bias. So I’m attempting my first pedal, and I’m totally new to electronics altogether. When the voltage rises high enough it would activate the junction and conduct.

HJ Datasheet Hefei Hejing pdf data sheet FREE from

Sorry if this is a very pedestrian question, I’ve already tried my best on google: If you have a DMM, you should read something like megaohms between a forward biased hm and a forward biased base-emitter. Then test the other two legs. Please read this first! Can anybody identify which leg is which from the insides? Become a Redditor and subscribe to one of thousands of communities.

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The base must also be negative with respect to collector and current will flow. This is an open community for the do-it-yourself pedal builders of reddit!

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But I’m not positive it was the right datasheet. 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 Use of this site constitutes acceptance of our User Agreement and Privacy Policy.

If the LED does not light up, then reverse the two legs and if it lights up, you now have one diode. Want to add to the discussion? hi

HJ13002 Datasheet

You can create your own test equipment for general guidelines if you’re creative. Submit a new link. 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.

I made it simpler from the rambling. Looking for troubleshooting help? Welcome to Reddit, the front page of the internet.

If you don’t have a DMM, use ohms law to build this https: Hjj 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. If the LED still lights up, then the legs are of a diode in ‘proper orientation’.

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It’s dead, you need a new transistor. It lights up if the diode of the transistor is forward biased. If you don’t have a DMM, use ohms law to build this. gj

FYI this is a high voltage transistor designed for switching operation, very commonly found in compact fluorescent lamps. In NPN, the opposite is true. hu

I found this in a light bulb, but can’t tell which leg is which. 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. C is probably the tiny pad, B is probably the long rail pad, and E is the large square pad.

Put two of the legs between the LED. 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.