Base Transit Time Solution

STEP 0: Pre-Calculation Summary
Formula Used
Base Transit Time = Emitter Collector Delay Time-(Base Collector Delay Time+Collector Charging Time+Emitter Charging Time)
τb = τec-(τscr+τc+τe)
This formula uses 5 Variables
Variables Used
Base Transit Time - (Measured in Second) - Base transit time is the average time the minority carriers need to traverse the quasi-neutral region in the base.
Emitter Collector Delay Time - (Measured in Second) - Emitter collector delay time is defined as the transit time across the base-collector depletion region or space.
Base Collector Delay Time - (Measured in Second) - Base Collector Delay Time refers to the additional time taken by the signal to propagate through space charged region of base collector junction.
Collector Charging Time - (Measured in Second) - Collector charging time refers to the time taken for the minority carriers in the base region of a BJT to be swept out of the collector region after the transistor is turned off.
Emitter Charging Time - (Measured in Second) - Emitter charging time is defined as drift in the motion of the charged particles induced by a field when you forward bias the emitter junction you get a large diffusion.
STEP 1: Convert Input(s) to Base Unit
Emitter Collector Delay Time: 5295 Microsecond --> 0.005295 Second (Check conversion ​here)
Base Collector Delay Time: 5.5 Microsecond --> 5.5E-06 Second (Check conversion ​here)
Collector Charging Time: 6.4 Microsecond --> 6.4E-06 Second (Check conversion ​here)
Emitter Charging Time: 5273 Microsecond --> 0.005273 Second (Check conversion ​here)
STEP 2: Evaluate Formula
Substituting Input Values in Formula
τb = τec-(τscrce) --> 0.005295-(5.5E-06+6.4E-06+0.005273)
Evaluating ... ...
τb = 1.01000000000007E-05
STEP 3: Convert Result to Output's Unit
1.01000000000007E-05 Second -->10.1000000000007 Microsecond (Check conversion ​here)
FINAL ANSWER
10.1000000000007 10.1 Microsecond <-- Base Transit Time
(Calculation completed in 00.004 seconds)

Credits

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Created by Shobhit Dimri
Bipin Tripathi Kumaon Institute of Technology (BTKIT), Dwarahat
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BJT Microwave Devices Calculators

Base Collector Delay Time
​ LaTeX ​ Go Base Collector Delay Time = Emitter Collector Delay Time-(Collector Charging Time+Base Transit Time+Emitter Charging Time)
Collector Charging Time
​ LaTeX ​ Go Collector Charging Time = Emitter Collector Delay Time-(Base Collector Delay Time+Base Transit Time+Emitter Charging Time)
Base Transit Time
​ LaTeX ​ Go Base Transit Time = Emitter Collector Delay Time-(Base Collector Delay Time+Collector Charging Time+Emitter Charging Time)
Cut-off Frequency of Microwave
​ LaTeX ​ Go Cut-off Frequency in BJT = 1/(2*pi*Emitter Collector Delay Time)

Base Transit Time Formula

​LaTeX ​Go
Base Transit Time = Emitter Collector Delay Time-(Base Collector Delay Time+Collector Charging Time+Emitter Charging Time)
τb = τec-(τscr+τc+τe)

What is Frequency range of microwave?

Microwave frequencies range between 109 Hz (1 GHz) to 1000 GHz with respective wavelengths of 30 to 0.03 cm. Within this spectral domain are a number of communication systems applications that are important in both the military and civilian sectors.

How to Calculate Base Transit Time?

Base Transit Time calculator uses Base Transit Time = Emitter Collector Delay Time-(Base Collector Delay Time+Collector Charging Time+Emitter Charging Time) to calculate the Base Transit Time, The Base Transit Time formula is defined as the average time the minority carriers need to traverse the quasi-neutral region in the base. Base Transit Time is denoted by τb symbol.

How to calculate Base Transit Time using this online calculator? To use this online calculator for Base Transit Time, enter Emitter Collector Delay Time ec), Base Collector Delay Time scr), Collector Charging Time c) & Emitter Charging Time e) and hit the calculate button. Here is how the Base Transit Time calculation can be explained with given input values -> 1E+7 = 0.005295-(5.5E-06+6.4E-06+0.005273).

FAQ

What is Base Transit Time?
The Base Transit Time formula is defined as the average time the minority carriers need to traverse the quasi-neutral region in the base and is represented as τb = τec-(τscrce) or Base Transit Time = Emitter Collector Delay Time-(Base Collector Delay Time+Collector Charging Time+Emitter Charging Time). Emitter collector delay time is defined as the transit time across the base-collector depletion region or space, Base Collector Delay Time refers to the additional time taken by the signal to propagate through space charged region of base collector junction, Collector charging time refers to the time taken for the minority carriers in the base region of a BJT to be swept out of the collector region after the transistor is turned off & Emitter charging time is defined as drift in the motion of the charged particles induced by a field when you forward bias the emitter junction you get a large diffusion.
How to calculate Base Transit Time?
The Base Transit Time formula is defined as the average time the minority carriers need to traverse the quasi-neutral region in the base is calculated using Base Transit Time = Emitter Collector Delay Time-(Base Collector Delay Time+Collector Charging Time+Emitter Charging Time). To calculate Base Transit Time, you need Emitter Collector Delay Time ec), Base Collector Delay Time scr), Collector Charging Time c) & Emitter Charging Time e). With our tool, you need to enter the respective value for Emitter Collector Delay Time, Base Collector Delay Time, Collector Charging Time & Emitter Charging Time and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.
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