Is a TIP41 a TIP41...need one of a DIY solder kit.

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I got a kit similar to this years ago, and it is missing the TIP41. No other details about the part. I see this component listed online, but various versions...not sure if any of them will work, or if I need a specific version of it (the letters following the TIP41). Would appreciate any help you can give!

The kit has a PCB similar to this, but this has different values:

$9.75 - Tesla Coil Kit 15W Soldering Kit - Tinkersphere

This is the diagram for the actual kit I have:
i-s6wfmwj.png


Thanks!
 
There are several different voltage ratings, but the price is about the same...

I distinctly recall same base TIP number was A=$3, B=$4, and C=$7 if you could get it.

But things change over 45+ years....

TIP41A $1.20 NTE Electronics, Inc
TIP41B $0.92 NTE Electronics, Inc
TIP41C $1.04 NTE Electronics, Inc
 
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These were always the same part, just graded based on sample testing of the wafers. The process is inherently capable of 100+ volts theses days. The only reason to use the other grades is if production documentation REQUIRES the A or B version, and too many auditors are looking.

Or if you happen to find NOS for pennies on the dollar, AND can verify then as real before bulk purchase. Do not do this if you just need one or two or even a dozen, or if you’re in serious production - add them to a Mouser order.
 
TIP41 is a TIP41

Pretty basic Medium Power General purpose Transistor made by Texas Instruments Back in the day.
Texas Instruments Power ( TIP )

Usually any other prefix might be modern if its PB free or not.
Otherwise Original A, B, C Suffix shows voltage tolerance.

As mentioned go for the 100 volt

Tip41 = 40 volt
Tip41A = 60 volt
Tip41B = 80 volt
Tip41C =100 volt
 
Back in those days they were very proud of power transistors over 60 volts too. B and C types were priced accordingly, as were “real” types good for over 100. They quickly got ridiculous, especially the PNP’s. And places that sold the higher voltage types wouldn’t typically do retail business so we were stuck with the crap.