What is the use of transistor BC547?

BC547 Transistor Application BC547 is usually used for current amplifier, quick switching and pulse-width modulation (PWM). Therefore, if you need to control the speed of a motor or actuator in some of your projects, you can simply use this transistor to achieve it.

What is the hFE of a transistor?

hFE is an abbreviation, and it stands for “Hybrid parameter forward current gain, common emitter”, and is a measure of the DC gain of a junction transistor. So on a multimeter, it indicates a mode where the meter can measure (probably crudely), the HFE of a transistor.

What is hFE of BC547?

With Vce at 5 V, and Ic at 100 mA, the current gain (hFE) for A is 120, B 200, C is 400. The maximum useful attainable hFE is 500 in the group C version, which is the BC547C transistor.

What is BC in BC548 transistor?

For instance, the BC prefix in the case of the BC548 indicates the semiconductor is made out of silicon and is intended for general, all-around use. By comparison, AC or AF indicates a germanium semiconductor, and BL indicates a silicon transistor intended for high power applications.

What is the difference between hFE and hFE?

hfe and HFE are two different, but related, characteristics of a bipolar transistor. hFE is the short circuit (vCE=0) forward current ratio (also known as h21) at a specified DC bias (which must be stated for each value of hFE). hfe is the small signal AC gain at a specified bias, and is frequency dependent.

What do you need to know about BC547 transistors?

BC847/BC547 series45 V, 100 mA NPN general-purpose transistorsRev. 07 10 December 2008 Product data sheet1. Product profile1.1 General descriptionNPN general-purpose transistors in small plastic packages.Table 1.

Which is the highest transition frequency of BC547?

The utmost transition frequency of BC547 is 300MHz so that it will perform well within RF circuits. Amplifiers like Audio, signal, etc.. These transistors are used to build various electrical and electronic circuits which include the following.

Is the BC547 a general purpose amplifier or switch?

BC547 BC547A BC547B BC547C This device is designed for use as general purpose amplifiers and switches requiring collector currents to 300 mA. Sourced from Process 10. See PN100A for characteristics. Absolute Maximum Ratings* TA = 25°C unless otherwise noted

What is the pdtotal resistance of a BC547 amplifier?

BC547 / A / B / C PDTotal Device Dissipation Derate above 25°C 625 5.0 mW mW/°C RθJCThermal Resistance, Junction to Case 83.3 °C/W RθJAThermal Resistance, Junction to Ambient 200 °C/W E B C TO-92  1997 Fairchild Semiconductor Corporation 547ABC, Rev B BC547 / BC547A / BC547B / BC547C NPN General Purpose Amplifier (continued)