ST9013 PDF Datasheet – 30V, 800mA, NPN Transistor

Part Number: ST9013

Function: 30V, 800mA, NPN Transistor

Package: TO-92 Type

Manufacturer: SEMTECH

Images:ST9013 pdf pinout


The ST9013 is NPN Silicon Epitaxial Planar Transistor. A NPN transistor is a type of bipolar junction transistor (BJT) that consists of two n-type semiconductor materials separated by a single p-type material.

The NPN transistor is used to amplify or switch electronic signals and is widely used in many electronic circuits. It works by controlling the current flow between the collector and emitter terminals through the base terminal.

When a small current is applied to the base, it controls a much larger current between the collector and emitter, making the NPN transistor an effective amplifier or switch.

Especially suitable for AF-driver stages and low power output stages.
The transistor is subdivided into three groups, G, H and I, according to its DC current gain. As complementary type the PNP transistor ST9012 is recommended.


1. Current Amplification: NPN transistors are designed to amplify electrical current, and can be used in a wide range of electronic applications such as amplifiers, switches, and oscillators.

2. Forward Biased: In order to operate, the base-emitter junction of an NPN transistor must be forward biased, meaning that the base must be connected to a positive voltage relative to the emitter.

3. High Input Impedance: NPN transistors have a high input impedance, which means that they are less likely to draw current from the input source, and are therefore less likely to cause a drop in voltage across the source.

ST9013 datasheet transistor


Absolute maximum ratings ( Ta=25°C )

1. Collector to Emitter Voltage: Vceo = 30 V

2. Emitter to Base Voltage: Vebo = 5 V

3. Collector Current: Ic = 800 mA

4. Power Dissipation : Ptot = 625 mW

6. Junction Temperature: Tj = 150°C

7. Storage Temperature: Tsg = -55 ~ +150°C


1. Switching and amplifier

ST9013 PDF Datasheet