• Extract positive BJT Early-voltage magnitude from collector current and small-signal output conductance.
• Compare fabrication or device scenarios while holding coefficients and unit conventions constant.
• Check a hand calculation before moving to a higher-fidelity process, circuit, or TCAD model.

The current must be expressed in amperes before division by siemens; zero collector current cannot define an Early voltage.

• This extraction assumes the local active-region slope is described by the simplified Early model and ignores the explicit VCE term used in more exact forms.
• Use parameters measured for the same material, geometry, temperature, and operating regime whenever the result informs engineering work.

• BJT Output Conductance

  Use BJT Output Conductance to calculate BJT small-signal output conductance from collector current and Early-voltage magnitude. Choose this tool when you need to extract positive BJT Early-voltage magnitude from collector current and small-signal output conductance.

• BJT Base Width Modulation

  Use BJT Base Width Modulation to estimate fractional BJT neutral-base narrowing caused by collector-base reverse bias. Choose this tool when you need to extract positive BJT Early-voltage magnitude from collector current and small-signal output conductance.