Author Topic: MOSFET Selection for HV DC Application  (Read 535 times)

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Offline 97hilfel

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MOSFET Selection for HV DC Application
« on: October 11, 2016, 06:35:25 pm »
Hello guys,
currently I am trying to build a Nixieclock, but I dont want to use those old russian driver ICs,
so I decided to use MC14028 BCD to Decimal decoders, in combination with a MOSFET to drive the cathode.
I am using IN-14 tubes with about 160V. In a Mr. Carlson's Lab video the MSPA42 NPN Transistor is suggested, but this transistor does not exist in SOT23 (which I want to use). So I found the BSS131, but are there better choises?
Felix
 

Offline bktemp

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Re: MOSFET Selection for HV DC Application
« Reply #1 on: October 11, 2016, 06:41:11 pm »
MPSA42 in SMD: FMMTA42 or PMBTA42
 

Offline leeatljs

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Re: MOSFET Selection for HV DC Application
« Reply #2 on: October 11, 2016, 06:56:40 pm »
I used BSS131 in a nixie clock, works great.
 

Offline 97hilfel

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Re: MOSFET Selection for HV DC Application
« Reply #3 on: October 12, 2016, 05:56:45 am »
Tank you guys!
Im gonna use the BSS131
 


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