Solving Transistor Doubts with ADS: 2SD2216 from Panasonic

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SUMMARY

The discussion focuses on simulating a circuit involving the Panasonic 2SD2216 transistor using Advanced Design System (ADS) software. The user encountered issues due to the absence of the 2SD2216 model in the ADS library and attempted to substitute it with a Q2N2222 transistor by adjusting the Hfe value. The 2SD2216 is identified as a BJT silicon NPN epitaxial planar type with a gain (Hfe) range of 210-340, while the Q2N2222 is a small signal general-purpose transistor, which may not be an appropriate substitute. The user seeks guidance on using alternative transistor models and creating custom transistor models in ADS.

PREREQUISITES
  • Understanding of BJT transistor characteristics, specifically NPN types.
  • Familiarity with Advanced Design System (ADS) software.
  • Knowledge of transistor gain (Hfe) and its implications in circuit design.
  • Basic skills in circuit simulation and modeling.
NEXT STEPS
  • Research how to create custom transistor models in ADS software.
  • Learn about the specifications and applications of the 2SD2216 transistor.
  • Investigate the differences between BJT and Darlington transistor configurations.
  • Explore alternative transistor models suitable for audio signal amplification.
USEFUL FOR

Electronics engineers, circuit designers, and students working with transistor simulations in ADS, particularly those focused on audio amplification circuits.

spid3rx
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Hello all,

I have been trying to simulate a circuitry involving a transistor for the microphone line. I believe it was used for amplication of the external audio signal (not too sure, maybe can share the circuit). I am using the ADS to simulate my circuit.

The problem I faced was the transistor model was not in my ADS library and the information I got now is the spec. The transistor is a BJT silicon NPN epitaxial planer type with Hfe = 210 - 340 gain. The p/n is 2SD2216 from panasonic.

I was using Q2N2222 transistor as a replacement by changing the Hfe value and I'm not sure whether I am doing the right thing.

My questions are
whether I can used other transistor model and change the Hfe to represent it?
How do I create my own transistor model in ADS software?

thanks in advance!
 

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Engineering news on Phys.org
Sorry, there was a typo there. I was a 2SD2216 transistor.
 

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