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Yes - agreed. Here in germany, we do not discriminate between hFE and hfe.meBigGuy said:This sheet has two different gain specifications
hFE (DC current gain) which is beta and has many specified conditions.
hfe (Small-Signal Current gain) at one specified condition, which the the small signal gain.
A transistor is a semiconductor device that is used to amplify or switch electronic signals. It can be used to control the flow of current in a circuit, making it an essential component in many electronic devices.
The 2N4401 is a popular general-purpose NPN transistor that is commonly used in electronic circuits. It has a low cost, high current capability, and good switching speed, making it suitable for a wide range of applications.
DC current gain, also known as hFE, is a measure of how much the transistor amplifies the input current. The value of hFE for the 2N4401 transistor is specified to be between 40 and 300 at a collector current of 60mA and a base-emitter voltage of 5V.
The 2N4401 transistor has three layers of semiconductor material, namely the emitter, base, and collector. By applying a small current at the base, the transistor allows a larger current to flow from the collector to the emitter, thereby amplifying the input signal.
The 2N4401 transistor is commonly used in low voltage switching circuits, such as in LED drivers, relays, and motor control. It can also be used in audio amplifiers, voltage regulators, and many other electronic applications.