What's this?

[throbscottle]

I sorted out my box of mixed transistors, found this. It's in a TO92 package, except for the slightly odd shape, 3 legs, looks like a tranny, but searching for those numbers doesn't come up with it. I reckon the "F" is for Fairchild, not part of the part number. Beyond that I'm stumped. Suggestions?

TIA

 

[atferrari]

IRF, BF?

The numbers suggest something really old: 1962?

 

[throbscottle]

I doubt if it's even pre-80's. If you look at the "F" the line goes right through it, that's why I think it's Fairchild's mark, rather than part of the part number. I'll check it with the meter in a while.

 

[dr pepper]

You need one of those cheap component testers.

I mined some fets the other day, cant find the datasheet, but the comp tester says they are fets, they are out of a dlt tape drive.

 

[Nigel Goodwin]

You need one of those cheap component testers.

I mined some fets the other day, cant find the datasheet, but the comp tester says they are fets, they are out of a dlt tape drive.

Yes, damn useful those component testers (and fun to build as well).

I sorted a load of resistors out the other week, many of then 1% - and it's VERY hard to read what values they are, made it so much easier just sticking the tester across them.

I was also fitting some plastic transistors, not sure of the pin outs, just stuck them on the tester and it tells you which pin is which (and also which ones were NPN or PNP)

I'm finding it FAR more useful than I imagined.

 

[KeepItSimpleStupid]

SCR? : http://nte01.nteinc.com/nte\NTExRefSemiProd.nsf/$$Search?CreateDocument&Query=f522

http://www.weisd.com/test/GenericParts_WEISD_view.php?editid1=F522(SCR)

 

[dr pepper]

I use mine for pinouts too.
Later ones test thyristors.

 

[Tony Stewart]

NTE5402
https://www.nteinc.com/specs/5400to5499/pdf/nte5400_06.pdf

 

[throbscottle]

Still haven't checked it, but I wouldn't have thought to test for it being an SCR! Must check later...
Budget still won't stretch to one of those cheap component testers though. Maybe next month

 

[Nigel Goodwin]

Still haven't checked it, but I wouldn't have thought to test for it being an SCR! Must check later...
Budget still won't stretch to one of those cheap component testers though. Maybe next month

It's only the price of a couple of beers!

 

[throbscottle]

Blimey, that's expensive beer!

 

[Tony Stewart]

All you need is a flashlight with one AA battery and alligator clips to test an SCR. Apply 1.5V to gate and output latch light on.

 

[Nigel Goodwin]

Blimey, that's expensive beer!

Not really, that's only £4 a pint, there's plenty of places that sort of price.

 

[Tony Stewart]

My preferred pints are the microbrewery from "out West" in Canada called Big Rock Brewery, famous for their world's smallest fire extinguisher with taste and in true British style consumed warm thanks to the maybe switch on Lucas refrigerators.

 

[dr pepper]

4 quid!, glad I kicked the habit.

 

[throbscottle]

Much better when it was 80p...

 

[Nigel Goodwin]

Much better when it was 80p...

Even better when it was a bob a pint, and five bob a gallon for petrol

 

[throbscottle]

Huh, it's a PNP. How about that.

 

[throbscottle]

What's a bob, again? Something to do with shillings.... Sorry I was a decimal child!

 

[Nigel Goodwin]

What's a bob, again? Something to do with shillings.... Sorry I was a decimal child!

A bob was a shilling (5p in modern money)