Higher power dissipation alternative for 2N2222A NPN

[gbeaulieu]

Hello,

I have a zener circuit with an emitter follower NPN transistor buffer. I chose the generic 2N2222A which has an ambient power dissipation of 625mW in a TO-92 package.

Does anyone know of a similar device that has a 1W ambient Pd (possibly in a TO-18 or TO-39 package)? Any other suggestions will be appreciated.

Regards,
George

 

[ScottyUK]

Check out some of the Zetex products. The E-Line package is similar to a TO-92 - smaller in fact - and seems to have a maximum dissipation of 1200mW. There are dozens of hits in the parametric search.

http://www.zetex.com/3.0/transistor_search.asp

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If we learn from our mistakes I'm getting a great education!

 

[gbeaulieu]

Hello ScottyUK,

Thank you for the feedback. I will be looking at Zetex.

Regards
George B

 

[itsmoked]

The 2N2222A comes in a TO-19 AND a TO-39!

Keith Cress
Flamin Systems, Inc.-

http://www.flaminsystems.com

 

[sreid]

If you have room, go to a transistor in a TO-220 case. TO-39's at half a Watt get hot enough to brand you (well at least hot enough to make you squeel if you accidently touch it).