BC337-40,412

Series:	--
Packaging:	Bulk
Part Status:	Obsolete
Transistor Type:	NPN
Current - Collector (Ic) (Max):	500mA
Voltage - Collector Emitter Breakdown (Max):	45V
Vce Saturation (Max) @ Ib, Ic:	700mV @ 50mA, 500mA
Current - Collector Cutoff (Max):	100nA (ICBO)
DC Current Gain (hFE) (Min) @ Ic, Vce:	250 @ 100mA, 1V
Power - Max:	625mW
Frequency - Transition:	100MHz
Operating Temperature:	150°C (TJ)
Mounting Type:	Through Hole
Package / Case:	TO-226-3, TO-92-3 (TO-226AA)
Supplier Device Package:	TO-92-3
Base Part Number:	BC337

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Introduction

BC337-40,412 is a type of transistor classified as Single Bipolar Junction Transistor (BJT). A BJT is an electronic component consisting of three layers of semiconductor material. In a single BJT, one layer is of either P or N material and two layers are of the opposite type. BJTs are most commonly used in amplifying electrical signals.

Application field

BC337-40,412 is primarily used in power switching applications. It is mainly employed in switch mode power supplies and other circuits that require both low on-resistance and minimum switching time. The device also finds applications in audio circuits, high frequency oscillators and radio transmitters.

Working principle

In a BJT, the main function is to amplify current. It does this by controlling a small current through one layer of semiconductor material, which controls the flow of much larger current through the other two layers. The BJT is operated by applying a control signal to its base-emitter junction. This control signal, usually in combination with a voltage applied to its collector-emitter junction, controls the flow of current between the collector and emitter. This change in current through the transistor causes the level of current through the collector-emitter to increase or decrease, depending on the characteristics of the application in which it is used.

Conclusion

BC337-40,412 is a type of transistor specifically used in power switching applications. It is mainly employed in switch mode power supplies, audio circuits, high frequency oscillators and radio transmitters. The main function of BC337-40,412 is to amplify current by controlling a small current through one layer of semiconductor material, which controls the flow of much larger current through the other two layers. The device is operated by applying a control signal to its base-emitter junction, in combination with a voltage applied to its collector-emitter junction.

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