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   sci.electronics.repair      Fixing electronic equipment      124,944 messages   

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   Message 124,144 of 124,944   
   Arie de Muijnck to Peter W.   
   Re: Transistor ID   
   31 Jan 24 13:31:06   
   
   From: noreply@ademu.com   
      
   On 2024-01-31 12:29, Peter W. wrote:   
   > On Tuesday, January 30, 2024 at 3:45:26 PM UTC-5, Mike H wrote:   
   >> I am trying to repair my Milwaukee M18 vacuum; model 0880-20. I left it   
   outside, it rained, and the rest is history.   
   >>   
   >> I have only a very rudimentary knowledge of electronics from building   
   Heathkits 45 years ago. That being said I am not afraid...   
   >>   
   >> Using my multi-meter as a continuity tester, I discovered a transistor that   
   got rusty from the rain and does not appear to be functioning.   
   >>   
   >> Can't seem to post a photo but it has 3 lines of text:   
   >>   
   >> IRF1404   
   >>   
   >> IOR P446D   
   >>   
   >> TONH   
   >>   
   >> Google search has not yielded any results. I do not have a schematic. The   
   vac is powered by a 18V lithium battery.   
   >>   
   >> In my testing I discovered if I connect a jumper between the left prong and   
   the center prong, the vacuum seems to operate normally. If that is safe to do,   
   I am happy to just solder a piece of wire between those prongs and call it a   
   day..   
   >>   
   >> Mike   
   > Equivalents are, per Alltransistors.com:   
   >   
   > Type              Mat  Struct      Pc           Vcb        Vce        Veb    
   Ic    Tj             Ft     Cc   Hfe  Pack   
   > ______________________________________________________________   
   _________________________   
   > 2N5630	 	 Si	 NPN	 200	 120	 120	 7	 20	 200	 1	 500  20	 TO3   
   > 2N6322	 	 Si	 NPN	 200	 300	 200	 	 30	 200	 	 	 40	 TO3   
   > 2N6323	 	 Si	 NPN	 200	 300	 200	 	 30	 200	 	 	 40	 TO3   
   > 2N6340X	 Si	 NPN	 200	 140	 25	 	         40	 	                         30	   
   TO3   
   > 2N6341X	 Si	 NPN	 200	 150	  25	 	         40	 	                         30	   
   TO3   
   > 2N6686	 	 Si	 NPN	 200	 260	 160	 8	 25	 200	        20	 25	 TO3   
   >   
   > IRF1404         Si     NPN       200         120          120        7        
   20    200              500   20    TO3   
   >   
   > I hope the table comes through.   
   >   
   > Peter Wieck   
   > Melrose Park, PA   
      
      
   Since when can you just replace an N-channel MOSFet with an NPN transistor?   
   Especially since the OP has 'rudimentary knowledge' and no schematics.   
      
   Arie   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

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