KSA992 Transistor Pinout, Features and uses

KSA992 Transistor Pinout
 KSA992 Transistor Pinout

The KSA992 is a NPN silicon planar epitaxial transistor with a dynamic frequency compensation. It is designed for use in audio amplifiers, general purpose switching and amplifier applications. The KSA992 has the following features: 

  • Collector to base voltage of 60 V 
  • Collector to emitter voltage of 40 V 
  • Emitter to base voltage of 6 V 
  • Collector current of 0.5 A 
  • Base current of 0.5 A 
  • Collector dissipation of 625 mW 
  • Transition frequency of 150 MHz

Pinout Diagram

The KSA transistor is a silicon NPN epitaxial planar transistor. It is designed for general-purpose switching and amplifier applications. The KSA has three terminals: the base, the collector, and the emitter.

The base is the control terminal of the transistor. The collector is the output terminal of the transistor. The emitter is the input terminal of the transistor.

The following diagram shows the pinout of the KSA transistor:

KSA Transistor Pinout

1 = Base

2 = Collector

3 = Emitter

Features and Specifications

A transistor is a semiconductor device used to amplify or switch electronic signals and electrical power. It is composed of three terminal: the emitter, the base, and the collector. The four symbols commonly used to represent a transistor are shown in the image below.

The function of a transistor is determined by its circuit configuration and by the voltage or current applied to its terminals. In digital circuits, transistors are used as switches, digital amplifiers, frequency doublers, clocking devices, and signal inverters. In analog circuits they are used as linear amplifiers, voltage regulators, and active filters.

Bipolar junction transistors (BJT) are the most common type of transistor in electronic equipment. They are manufactured in two types: NPN and PNP, with different voltages required for their operation.

The KSA1117 is an NPN transistor that can be used for low-power amplification and switching applications. It has a maximum collector current of 800mA and a maximum continuous collector-base voltage (Vcb) of 30V. The transition frequency (ft) is 1MHz.


A transistor is a semiconductor device used to amplify or switch electronic signals and electrical power. It is composed of semiconductor material with at least three terminals for connection to an external circuit. A voltage or current applied to one pair of the transistor’s terminals changes the current through another pair of terminals. Because the controlled (output) power can be higher than the controlling (input) power, a transistor can amplify a signal. Today, some transistors are packaged individually, but many more are found embedded in integrated circuits.

The transistor’s low cost, ruggedness, and reliability have made it a staple of electronic devices since its introduction in the 1950s. Transistors are used in digital and analog circuitry alike, and perform tasks including signal amplification, signal conditioning, switching, linear and non-linear gain control, oscillation start-up assistance, and much more.


When it comes to transistors, there are many different types available on the market. For example, there are NPN and PNP types, as well as JFET and MOSFET types. Each type of transistor has its own set of characteristics and benefits that make it well-suited for specific applications.

When choosing a transistor for a particular application, it is important to consider all of the different alternatives in order to choose the one that will best meet the needs of the project. In this section, we will take a closer look at some of the most common types of transistors and their key features.

NPN Transistors:

NPN transistors are one of the most commonly used types of transistors. They are typically used in amplifier circuits and switch circuits. The main advantage of NPN transistors is that they can be easily integrated into circuits without the need for external biasing components.

PNP Transistors:

PNP transistors are another common type of transistor. They have the opposite polarity of NPN transistors and are typically used in switch circuits. PNP transistors require external biasing components in order to function properly. However, they have the advantage of being able to handle higher collector currents than NPN transistors.

JFET Transistors:

JFET transistors are field-effect transistors that are typically used in amplifier and switch circuits. They have a very


The KSA992 is a versatile transistor that can be used for a variety of applications. Its pinout makes it easy to connect, and its features make it ideal for use in digital circuits. If you’re looking for a reliable and affordable transistor, the KSA992 is a great option.

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