MICROELECTRONICS. 2N/91/ 2N/94/ COMPLEMENTARY SILICON POWER TRANSISTORS. 2N, 2N, 2N AND 2N ARE . Characteristics of the 2N bipolar transistor. Type – p-n-p; Collector-Emitter Voltage: 40 V; Collector-Base Voltage: 40 V; Emitter-Base Voltage: 5 V. Manufacturer Part No: 2N Order Code: Technical Datasheet: 2N Datasheet. Availability: No Longer Manufactured. See all Technical Docs.

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Hopefully this will help with interpretation of my earlier msg. In this case datashewt device is connected to a large pad on the And closer inspection shows you’re right that it’s not B As far as I can tell U and Q are behaving as expected but I can find no bad passives on the -5V supply sub-circuit.

My eyes are not what they used to be.

2N5193 Datasheet, Equivalent, Cross Reference Search

On Mon, Oct 8, at Q’s Tek part number for my ‘s serial number isfor which Sphere lists 2N as a substitute. Biggest challenge is finding enough time to do the diagnostics. The new topic will begin with this message. I’ve been unable to find any datasheet on this item and don’t know whether it’s original or a substitute from an earlier rework.

Search Only Within This Topic. There’s also one expanded timebase shot from the LeCroy showing the U op-amp output into the base of Q and its correspondence with movements on the -5V rail, which starts its downward trajectory but is derailed by the positive shift at Q base and doesn’t recover. Also can dataseet make use of some fast switching diodes and other parts?

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So the problem seems to lie on the power supply board. Presume there’s guidance on the site somewhere – will try some more searching. The photo titles show the channel allocations to the rails.

The soldering does not look original. I hope that will shed some more light. I can post some annotated scans of the relevant schematic parts if that would help. Substituting a 2NG for the B hasn’t made any difference.

Subject of the new topic: One of the LeCroy shots has parameters overlaid showing min and max voltages reached – as does the single Rigol shot taken simultaneously. Use a mica dtaasheet when mounting on a metal surface. If you had a spare lying around it would be good to have one available.

I have plenty of photos and waveforms from diagnostics so far but I’m not sure how to upload them or link them to this post. Seems that’s the way it should be. Your email is included with the abuse report. Will check my box of scraps. dattasheet


2N5193 Datasheet PDF

This cannot be undone. Reed Dickinson toggle quoted message. I’ll bet the B in B is an 8 and if so is a date code. I’ve started to compare how the datadheet and -5V supplies are behaving as the first appears to be working fine and the second is not and they’re not very dissimilar subcircuits and use the same op-amp.

Reason Report to Moderators I think this message isn’t appropriate for our Group. At present, I’m just looking for advice on whether this part of the supply is particularly sensitive to the characteristics of Q, details of what the full identifier for the Motorola B might be and where I might find a datasheet, and advice as to whether the 2NG is a suitable replacement and, if not, what to use instead.

2N Datasheet, Equivalent, Cross Reference Search. Transistor Catalog

I’ll presume for now the 2N is working OK and move on. The Group moderators are responsible for maintaining their community and can address these issues. dataeheet

Are you sure you wish to delete this message from the message archives of TekScopes groups. Hardware shot simply shows the Motorola circled red.