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The significant operational difference between a Si diode and a Ge diode is that Si diodes have a knee voltage of 0.7V needed to allow current flow and Ge diodes have an operational voltage of 0.3V to allow current flow.

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14y ago
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11y ago
  • forward bias voltage: Germanium 0.2V, Silicon 0.7V
  • maximum junction operating temperature: Germanium 60C, Silicon 150C
  • packaging: Germanium must be hermetically sealed glass or metal, Silicon if surface is passivated any packaging can be used including molded plastic as hermetic seal is not required
  • etc.
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Q: What is the Difference between Si and Ge diodes?
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Related questions

What is the cut in voltage of GE and SI diodes?

for germanium it is 0.3 and for silicon it is 0.7


What are the difference between Ge and Si diode?

the energy required to break covalent bond in si is 1.1ev and in ge is 0.7ev


Why are germaninum diodes popular than silicon diodes?

because in Ge mobility of both electrons and holes is higher than the corresponding carriers in Si....and second reason -Ge can be refined and processed more easily..


Why Si is used than Ge in semiconductor diode?

silicon diodes Cut in voltage is 0.7 V.but the Germanium cut in voltage is 0.3 V that's why .............


What are the Characteristics of Direct and indirect band gap semiconductors?

Direct band semconductors are mostly for LEDs. Indirect band semiconductors like Si and Ge are conventional diodes.


What is cut in or knee voltage of Si and Ge?

For Si it is 0.6or 0.7 and for Ge 0.3 or 0.2.Both values correct for both si and ge


Which has higher leakage current-Si or Ge?

Ge


Which atom is most metallic in character Mg Si Ge or I?

Mg. I is a non-metal and Si and Ge are metalloids.


What is the threshold voltage of silicon and germanium?

In semiconductor uses, such as diodes and transistors, the forward voltage drop for Silicon (Si) is a little less than 0.7 volts, while the FVD for Germanium (Ge) is about 0.3 volts.


Which of the two semiconductor material Si or Ge has larger conductivity at room temperature?

Ge has higher conductivity than Si. Because at room temperature the electron and hole mobility for Ge is larger than those of Si. Another explanation is the lower band gap of Ge than Si.


How do you spell greg in Chinese?

格雷格(ge lei si )or 格瑞格(ge rui si)


Mention cut-in-voltage for Si and Ge diode?

0.6-0.7 V for Si at room temp. and 0.3 for Ge at room temp.