2N3253

Series:	--
Packaging:	Bulk
Part Status:	Active
Transistor Type:	NPN
Voltage - Collector Emitter Breakdown (Max):	75V
Vce Saturation (Max) @ Ib, Ic:	--
Current - Collector Cutoff (Max):	500nA (ICBO)
DC Current Gain (hFE) (Min) @ Ic, Vce:	25 @ 500mA, 1V
Frequency - Transition:	175MHz
Operating Temperature:	--
Mounting Type:	Through Hole
Package / Case:	TO-205AD, TO-39-3 Metal Can
Supplier Device Package:	TO-39

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Introduction2N3253 is a NPN transistor in a standard 4-pin TO-220 package. It is often used as a switches in electronic devices such as radios, televisions, and diagnostic equipment. It is also used to amplify current and voltage signals. This document will discuss the application field and working principle of the 2N3253 transistor. Application FieldsThe 2N3253 transistor is often used in applications where simple switching or amplification is required. Examples of such applications include switching loads in battery operated devices, sound actuated switches, and voltage regulators. The 2N3253 transistor can also be used as an Audio Amplifier. It has low impedance, wide bipolar range, and low distortion. One of the main reasons the transistor is used in audio applications is because it is able to provide high current capabilities. The transistor is also used in wired communications. It is often used as a Line Interface Device (LID) in telephone networks. The 2N3253 is also used in digital signal processing applications. It can be used for amplifying signals, switching analogue signals into digital signals, and for filtering digital signals. Working PrincipleThe 2N3253 transistor is a bipolar junction transistor. It is composed of three regions of semiconductor material - Source, Drain, and Base. The 2N3253 is an NPN transistor, meaning that the majority charge carriers in the device are Negative. The source region is negative and the drain region is positive. When a current is applied to the base, it causes electrons to flow from the source region to the drain region. This flow of charge creates an amplified current in the drain region. This amplified current is then used to perform work (i.e. switching, amplification, etc.).The current amplification of the 2N3253 transistor is determined by the ratio of the Collector current to the Base current, which is referred to as the Transistor Gain or hFE. The higher the hFE, the higher the amplification of current. The hFE of the 2N3253 is typically 250 - 500. ConclusionThe 2N3253 transistor is a NPN transistor that is used for switching or amplification applications. It is used for a range of applications, such as wired communication, audio amplifiers, and voltage regulators. The 2N3253 transistor works by the flow of charge from the source region to the drain region, which creates an amplified current that can be used for work. The hFE or current gain of the 2N3253 transistor is typically 250 - 500.

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