• Calculate BJT small-signal output conductance from collector current and Early-voltage magnitude.
• 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.

A zero collector current gives zero conductance; otherwise the result is the local dIC/dVCE approximation.

• The compact relation treats VA as an effective magnitude and omits the VCE correction, self-heating, quasi-saturation, and frequency effects.
• Use parameters measured for the same material, geometry, temperature, and operating regime whenever the result informs engineering work.

• BJT Early Voltage

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

• BJT Common-Emitter Current Gain

  Use BJT Common-Emitter Current Gain to convert common-base current gain alpha into common-emitter current gain beta. Choose this tool when you need to calculate BJT small-signal output conductance from collector current and Early-voltage magnitude.