BD135 Discrete Semiconductor Products

Series:	--
Packaging:	Tube
Part Status:	Active
Transistor Type:	NPN
Current - Collector (Ic) (Max):	1.5A
Voltage - Collector Emitter Breakdown (Max):	45V
Vce Saturation (Max) @ Ib, Ic:	500mV @ 50mA, 500mA
Current - Collector Cutoff (Max):	100nA (ICBO)
DC Current Gain (hFE) (Min) @ Ic, Vce:	40 @ 150mA, 2V
Power - Max:	1.25W
Frequency - Transition:	--
Operating Temperature:	150°C (TJ)
Mounting Type:	Through Hole
Package / Case:	TO-225AA, TO-126-3
Supplier Device Package:	SOT-32-3
Base Part Number:	BD135

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The BD135 is a type of general purpose, NPN bipolar junction transistor (BJT). It is used in a variety of applications, including signal amplification, switching, and voltage regulation. It has a high current gain and low noise figure, making it a popular choice for many designs.The BD135 is a low-power NPN BJT. It has a maximum current of 500 mA, a maximum voltage of 60V, and a power dissipation of 625 mW. Its hFE (current gain) is typically between 110 - 190. The BD135 is often used as an amplifier or switch, as it can handle large currents up to 500 mA.In order to have a better understanding of how the BD135 works, it is important to understand the basic properties of a BJT. A bipolar junction transistor is made up of two p-type and one n-type semiconductor material. When a current is applied to the base-emitter junction, electrons will flow from the emitter to the collector, creating a voltage gain. The current gain, hFE, is determined by the ratio of collector current to base current.The BD135 is often used as an amplifier or switch. In amplifier circuits, it can provide gain while amplifying signals. Switch circuits use the transistor to switch the flow of current between the collector and emitter. The transistor can be used in switching circuits with a wide range of currents, from small signals to high power applications.The BD135 is also often used in voltage regulator circuits. Regulators use the transistor to control voltage output. This can be used to regulate the voltage in an electronic system to prevent damage to components due to over-voltage or under-voltage. The BD135 is a popular choice for many voltage regulator circuit designs due to its high-current gain and low-noise figure.The BD135 is a versatile versatile transistor that can be used in many applications. Its wide operating temperature range and high current gain make it a popular choice for both analog and digital designs. The transistor is also easy to use, making it a popular choice for beginners and hobbyists.In conclusion, the BD135 is a general purpose, NPN bipolar junction transistor. It is used in applications such as signal amplification, switching, and voltage regulation. Its high current gain and low noise figure make it an ideal choice for many designs. The BD135 is easy to use and can be integrated into circuits to provide gain, switch currents, or regulate voltage output.

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