1 Answer
The main disadvantage of a **BJT (Bipolar Junction Transistor)** is its **high power consumption** due to **continuous base current**.
In simple terms:
- To keep a BJT turned **on**, you must constantly supply a small current to the base.
- This **wastes power**, especially compared to alternatives like MOSFETs, which need almost no input current to stay on.
Other important disadvantages:
- **Slower switching speeds** than MOSFETs (especially at very high frequencies)
- **Larger size** in integrated circuits
- **More heat generation** due to higher current flows
Would you like a quick visual comparison between BJT and MOSFET too?
In simple terms:
- To keep a BJT turned **on**, you must constantly supply a small current to the base.
- This **wastes power**, especially compared to alternatives like MOSFETs, which need almost no input current to stay on.
Other important disadvantages:
- **Slower switching speeds** than MOSFETs (especially at very high frequencies)
- **Larger size** in integrated circuits
- **More heat generation** due to higher current flows
Would you like a quick visual comparison between BJT and MOSFET too?