2SB12520Q

Series:	--
Packaging:	Bulk
Part Status:	Obsolete
Transistor Type:	PNP - Darlington
Current - Collector (Ic) (Max):	5A
Voltage - Collector Emitter Breakdown (Max):	100V
Vce Saturation (Max) @ Ib, Ic:	2.5V @ 4mA, 4A
Current - Collector Cutoff (Max):	100µA
DC Current Gain (hFE) (Min) @ Ic, Vce:	5000 @ 4A, 5V
Power - Max:	2W
Frequency - Transition:	20MHz
Operating Temperature:	150°C (TJ)
Mounting Type:	Through Hole
Package / Case:	TO-220-3 Full Pack
Supplier Device Package:	TO-220F-A1

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, :2SB12520Q is a kind of NPN Transistors - Bipolar (BJT) - Single. It is mainly used in AC adapter, laser printer, personal computer and electronic ballasts, etc. In this article, we will mainly talk about 2SB12520Q\'s application field and working principle.When it comes to application field, 2SB12520Q is mainly used as a switching in AC-DC power adapters, laser printers, personal computers, electronic ballasts and other electronic equipment. By using it, these kinds of electronic equipment can minimize the power consumption and maximize the utilization rate, greatly improved the environmental protection effect.Regarding its working principle, the 2SB12520Q is a type of NPN transistor, which is composed of three terminals: the collector, the base and the emitter. When it is in the off state, the base and the collector are open, the current between the base and the emitter is cut off and the current between the collector and the emitter is also cut off. As soon as the base receives a positive voltage, the current between the base and the emitter is turned on, causing the current between the collector and the emitter to be turned on. This is because the current between the base and the emitter controls the current between the collector and the emitter. In addition, when the base voltage is high enough, the excess electrons in the base region will inject into the emitter region, leading to a large current between the collector and the emitter. At this time, the 2SB12520Q is in the saturation state. On the contrary, when the base voltage is too low, the holes injected from the emitter region can not reach the collector region, the 2SB12520Q is in the cutoff state. Therefore, 2SB12520Q can be used as a switch, it can reach its saturation state under the conditions of high base voltage. In the wide application field, 2SB12520Q can also be widely used in other electronic devices, such as amplifiers, logic circuits and otherField Effect Transistors (FETs). In summary, 2SB12520Q is a product of NPN Transistors - Bipolar (BJT) - Single. It is mainly used in AC-DC power adapters, laser printers, personal computers, electronic ballasts and other electronic equipment. It has a wide application field and its working principle is to control the current between the collector and the emitter according to the base voltage.

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