A humble question about the 2N3904 transistor

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Discussion Overview

The discussion revolves around the search for an integrated circuit (IC) equivalent to the 2N3904 transistor, specifically in the context of needing a Darlington array for a circuit. Participants explore the definitions and specifications related to transistors and integrated circuits.

Discussion Character

  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant inquires about an IC equivalent to the 2N3904 transistor, expressing a need to use an IC instead of discrete transistors.
  • Another participant suggests that the SMT equivalents could be MMBT3904 or PZT3904, emphasizing the importance of specifying the package type needed.
  • A participant clarifies that "IC" refers to an integrated circuit and mentions the requirement for a Darlington array, indicating confusion over the professor's instructions.
  • Further clarification is provided regarding the distinction between needing a Darlington array and a single 2N3904 transistor, with a suggestion to search for Darlington arrays on electronics supplier websites.
  • Another participant highlights the importance of understanding the intended application of the device, mentioning a specific Darlington switch that could be relevant for relay driving applications.

Areas of Agreement / Disagreement

Participants generally agree on the need for clarification regarding the type of IC required, but there is no consensus on a specific IC equivalent to the 2N3904, as different interpretations of the requirements are presented.

Contextual Notes

The discussion reflects varying interpretations of the term "IC" and the specific requirements for the application, which may lead to different recommendations for suitable components.

dip
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Is there an IC that has 2N3904 transitor in it? I have to use an IC instead of transistors so I was wondering what is it's IC equivalent? :confused:

Tnx.
 
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What do you mean "IC" equivalent? The SMT equiv should be something like mmbt3904, or pzt3904. 2n3904 refers both to the case style (to-92 footprint) and the semiconductor material. If you search Fairchild, Vishey, ST, etc using the parametric option you'll probably come up with something. Or search the mmbt/pzt PN's if SMT is what you need. What package are you looking for anyway?

If you need multiple xstors in a dip type package you'll most likely have to do the parametric search using the 3904 characteristics.

Good luck.
 
IC = Integrated Circuit. I have to use a Darlington array in my ckt but my prof says use an IC. Geh...

Thanks anyways :)
 
I know "IC" mean integrated circuit; however, you needed to specify which package you needed. There are not a lot of "IC's" containing a single xstr which was why I asked.

Needing a darlington array is different than needing a 3904. Go to Mouser electronics and search for darlington array. You'll find many "ICs" for about $1.50 that will meet your requirements. Darlingtons are exceedingly common as ICs.
 
Ok, thanks
 
More importantly how the device is to be used. Switch? Amplifier? The 2003 (can't think of prefix) is a darlington switch. It is capable of a couple of hundred mA I believe. There are 7 darlington pairs on the device. It is typically used as a relay driver or similar application.
 

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